feat(ui): richer diff viewer + surface child roadblocks on parents

- UnifiedDiffParser detects added/deleted/renamed/binary files; diff
  modal shows a file list, binary/empty placeholders, and can diff a
  merged task by commit range after its worktree is gone
- DetailsIslandViewModel flags children needing attention (failed,
  cancelled, awaiting review, or with roadblocks) on the parent
- GitService gains worktree head-commit/range support; planning chain,
  merge orchestration, and session manager tweaks with updated tests
- refresh app/installer/worker icons

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/audit.yml

@@ -0,0 +1,101 @@
+name: Dependency Audit
+
+on:
+  schedule:
+    - cron: '0 6 * * 1'   # Mondays 06:00 UTC
+  workflow_dispatch: {}
+
+jobs:
+  audit:
+    runs-on: ubuntu-latest
+    env:
+      DOTNET_ROOT: /home/mika/.dotnet
+      GITEA_API: https://git.kuns.dev/api/v1
+      REPO: releases/ClaudeDo
+      ISSUE_TITLE: 'Dependency audit: vulnerable packages detected'
+    steps:
+      - name: Checkout main
+        env:
+          TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          set -euo pipefail
+          git clone --depth 1 --branch main \
+            "https://oauth2:${TOKEN}@git.kuns.dev/${REPO}.git" src
+
+      - name: Scan for vulnerable / outdated packages
+        run: |
+          set -euo pipefail
+          export PATH="$DOTNET_ROOT:$PATH"
+          cd src
+
+          : > audit.log
+          : > vuln.md
+          found=0
+
+          # .slnx tooling needs .NET 9; iterate per-project to stay on .NET 8.
+          while IFS= read -r proj; do
+            echo "==== $proj ====" | tee -a audit.log
+            dotnet restore "$proj" >/dev/null
+
+            vuln="$(dotnet list "$proj" package --vulnerable --include-transitive 2>&1)"
+            echo "$vuln" | tee -a audit.log
+            if echo "$vuln" | grep -qi "has the following vulnerable"; then
+              found=1
+              {
+                printf '#### `%s`\n\n```\n' "$proj"
+                echo "$vuln"
+                printf '```\n\n'
+              } >> vuln.md
+            fi
+
+            # Outdated is informational only — never fails the run.
+            dotnet list "$proj" package --outdated 2>&1 | tee -a audit.log || true
+            echo "" | tee -a audit.log
+          done < <(find . -name '*.csproj' | sort)
+
+          if [ "$found" -ne 0 ]; then
+            echo "::error::Vulnerable packages detected — see log above." >&2
+            exit 1
+          fi
+          echo "No vulnerable packages found."
+
+      - name: Report vulnerabilities to a Gitea issue
+        if: failure()
+        env:
+          TOKEN:  ${{ secrets.GITEA_TOKEN }}
+          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+        run: |
+          set -euo pipefail
+          cd src
+
+          if [ -s vuln.md ]; then
+            DETAILS="$(cat vuln.md)"
+          else
+            DETAILS="The audit job failed before producing findings — check the run log."
+          fi
+          BODY="$(printf 'Automated weekly dependency audit found vulnerable packages.\n\n%s\n\n[View workflow run](%s)' \
+            "$DETAILS" "$RUN_URL")"
+
+          # Reuse an existing open issue if one is already tracking this.
+          EXISTING="$(curl -sS \
+            -H "Authorization: token ${TOKEN}" \
+            "${GITEA_API}/repos/${REPO}/issues?state=open&type=issues&limit=50" \
+            | jq -r --arg t "$ISSUE_TITLE" '.[] | select(.title==$t) | .number' | head -n1)"
+
+          if [ -n "$EXISTING" ]; then
+            echo "Commenting on existing issue #$EXISTING"
+            jq -n --arg body "$BODY" '{body:$body}' \
+              | curl -sS --fail-with-body -X POST \
+                  -H "Authorization: token ${TOKEN}" \
+                  -H "Content-Type: application/json" \
+                  -d @- \
+                  "${GITEA_API}/repos/${REPO}/issues/${EXISTING}/comments" >/dev/null
+          else
+            echo "Creating new issue"
+            jq -n --arg title "$ISSUE_TITLE" --arg body "$BODY" '{title:$title, body:$body}' \
+              | curl -sS --fail-with-body -X POST \
+                  -H "Authorization: token ${TOKEN}" \
+                  -H "Content-Type: application/json" \
+                  -d @- \
+                  "${GITEA_API}/repos/${REPO}/issues" >/dev/null
+          fi

.gitea/workflows/changelog.yml

@@ -0,0 +1,85 @@
+name: Changelog
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  changelog:
+    runs-on: ubuntu-latest
+    env:
+      REPO: releases/ClaudeDo
+    steps:
+      - name: Checkout main (full history)
+        env:
+          TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          set -euo pipefail
+          git clone "https://oauth2:${TOKEN}@git.kuns.dev/${REPO}.git" src
+          cd src
+          git fetch --tags --force
+          git checkout main
+
+      - name: Regenerate CHANGELOG.md
+        run: |
+          set -euo pipefail
+          cd src
+
+          emit_group() {
+            # $1 range, $2 conventional-type, $3 heading
+            local range="$1" type="$2" title="$3" lines
+            lines="$(git log "$range" --no-merges --pretty=format:'%s|%h' \
+              | grep -E "^${type}(\([^)]*\))?(!)?: " || true)"
+            [ -z "$lines" ] && return 0
+            printf '### %s\n\n' "$title"
+            while IFS='|' read -r subject hash; do
+              printf -- '- %s (%s)\n' "${subject#*: }" "$hash"
+            done <<< "$lines"
+            printf '\n'
+          }
+
+          emit_section() {
+            # $1 range, $2 tag, $3 date
+            printf '## %s — %s\n\n' "$2" "$3"
+            emit_group "$1" feat     "Features"
+            emit_group "$1" fix      "Fixes"
+            emit_group "$1" perf     "Performance"
+            emit_group "$1" refactor "Refactoring"
+            emit_group "$1" docs     "Documentation"
+          }
+
+          # Tags ascending by semver so we can pair each with its predecessor.
+          mapfile -t TAGS < <(git tag --sort=v:refname | grep -E '^v' || true)
+
+          {
+            printf '# Changelog\n\n'
+            for ((i=${#TAGS[@]}-1; i>=0; i--)); do
+              TAG="${TAGS[$i]}"
+              DATE="$(git log -1 --format=%ad --date=short "$TAG")"
+              if (( i > 0 )); then
+                RANGE="${TAGS[$((i-1))]}..${TAG}"
+              else
+                RANGE="$TAG"
+              fi
+              emit_section "$RANGE" "$TAG" "$DATE"
+            done
+          } > CHANGELOG.md
+
+          cat CHANGELOG.md
+
+      - name: Commit and push if changed
+        env:
+          TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          set -euo pipefail
+          cd src
+          if git diff --quiet -- CHANGELOG.md; then
+            echo "CHANGELOG.md unchanged; nothing to commit."
+            exit 0
+          fi
+          git config user.name  "ClaudeDo CI"
+          git config user.email "ci@kuns.dev"
+          git add CHANGELOG.md
+          git commit -m "docs(changelog): update for ${GITHUB_REF_NAME}"
+          git push origin main

CHANGELOG.md

@@ -0,0 +1,36 @@
+# Changelog
+
+All notable changes to ClaudeDo are documented here.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+Versions are derived from git tags (`vX.Y.Z`) via MinVer.
+
+## [Unreleased]
+
+### Fixed
+
+- Review queue is no longer permanently empty: the review virtual list now
+  matches tasks in `WaitingForReview` (it previously matched `Done` + active
+  worktree, a state successful runs never land in).
+- UI ViewModels (`Details`, `Tasks`, `Lists` islands and the shell) now dispose
+  their `Loc.LanguageChanged`, worker-event, and timer subscriptions, fixing
+  long-lived subscription leaks.
+- Stopping a task while the worker is offline no longer throws: `StopAsync`
+  guards on task/running/connection state and handles hub errors.
+
+### Hardening
+
+- Release-readiness audit pass across Worker, Data, UI, MCP, App and Installer
+  (see `docs/open.md` backlog for tracked follow-ups).
+
+## [1.7.0]
+
+- Agent roadblock + run-outcome surfacing in the task detail pane.
+- i18n: localized task-header, task-row and prime-schedule tooltips.
+- CI: dependency-audit and changelog Gitea workflows.
+- Layer A/B/C git merge & conflict-resolution cockpit (multi-worktree
+  batch-merge, inline conflict resolver).
+
+[Unreleased]: https://git.kuns.dev/releases/ClaudeDo/compare/v1.7.0...HEAD
+[1.7.0]: https://git.kuns.dev/releases/ClaudeDo/releases/tag/v1.7.0

CLAUDE.md

@@ -35,7 +35,7 @@ Two-process system communicating over SignalR (`127.0.0.1:47821`):
 - EF Core migrations manage schema (Migrations/ folder in ClaudeDo.Data)
 - `IDbContextFactory<ClaudeDoDbContext>` used by singleton consumers (e.g. Worker)
 - Entity configuration via `IEntityTypeConfiguration<T>` in Configuration/ folder
-- Task status flow: Idle | Queued -> Running -> WaitingForReview -> Done | Failed | Cancelled. A standalone task's successful run lands in WaitingForReview (planning children go straight to Done); from review you can approve (merges the worktree into the target branch, then Done; conflicts keep it in WaitingForReview), reject-rerun (Queued, resumes the session with feedback), reject-park (Idle), or cancel (Cancelled). Tasks with no active worktree (sandbox run / improvement parent) are approved straight to Done.
+- Task status flow: Idle | Queued -> Running -> WaitingForReview -> Done | Failed | Cancelled. A task that spawns/has children passes through WaitingForChildren first, then surfaces for review once every child is terminal — this is the single parent model for both planning and improvement parents (planning/improvement *children* themselves go straight to Done, only the parent is reviewed). From review you can approve, reject-rerun (Queued, resumes the session with feedback), reject-park (Idle), or cancel. Approve is the single review+merge action: a childless task merges its own worktree then Done (conflicts keep it in WaitingForReview); a task with children drives the unit merge (parent worktree if any + each Done child in order, with conflict continue/abort). Tasks with no active worktree (sandbox run) approve straight to Done.
 - Worktree state flow: Active -> Merged | Discarded | Kept
 - The queue picker claims tasks by `Status=Queued` (with `BlockedByTaskId IS NULL`); the legacy tag system was removed
 - Interfaces live in an `Interfaces/` subfolder beside their consumers (namespace unchanged)

docs/superpowers/plans/2026-06-05-layer-c-inline-conflict-resolver.md

@@ -0,0 +1,920 @@
+# Layer C — Inline Conflict Resolver Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Build the worker-side conflict plumbing (5 frozen hub methods + GitService reads) and a VSCode-style in-app inline conflict resolver UI for ClaudeDo's merge rework.
+
+**Architecture:** The worker performs a real merge that leaves conflicts in the list's working tree (`leaveConflictsInTree:true`), exposes ours/theirs/base per conflicted file via `git show :2:/:3:/:1:`, accepts written resolutions, and finishes via the existing `ContinueMergeAsync`/`AbortMergeAsync`. The UI presents each conflicted file's hunk with Accept Current/Incoming/Both/Edit-manually controls plus a free-text merged box, then writes resolutions and continues.
+
+**Tech Stack:** .NET 8, ASP.NET Core SignalR (WorkerHub), EF Core/SQLite, Avalonia MVVM (CommunityToolkit), xUnit + real git/SQLite fixtures.
+
+**Frozen client contract (already shipped in foundation commit `2dfc455`, DO NOT edit):**
+- `IWorkerClient` / `WorkerClient.cs` already call hub methods by name: `StartConflictMerge`, `GetMergeConflicts`, `WriteConflictResolution`, `ContinueMerge`, `AbortMerge`.
+- Client DTOs already exist in `WorkerClient.cs`: `MergeConflictsDto(string TaskId, IReadOnlyList<ConflictFileDto> Files)`, `ConflictFileDto(string Path, IReadOnlyList<ConflictHunkDto> Hunks)`, `ConflictHunkDto(string Ours, string Theirs, string? Base)`, plus existing `MergeResultDto(string Status, IReadOnlyList<string> ConflictFiles, string? ErrorMessage)`.
+- Worker-side DTOs must serialize identically (same record shape) and live in `WorkerHub.cs`.
+
+**Do NOT touch:** `WorkerClient.cs`, `Interfaces/IWorkerClient.cs`, `WorkConsole.axaml`, `DetailsIslandViewModel.cs`, `WorktreesOverviewModalView/VM`, `WorktreeModalView`. Test fakes for `IWorkerClient` already implement the 5 methods as no-op stubs (`StubWorkerClient` is `virtual` in Ui.Tests) — subclass/override, never edit the interface.
+
+**Build/test commands (.NET 8 — running Worker locks `Debug`, always `-c Release`):**
+```bash
+dotnet build src/ClaudeDo.Worker/ClaudeDo.Worker.csproj -c Release
+dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release
+dotnet test tests/ClaudeDo.Worker.Tests/ClaudeDo.Worker.Tests.csproj -c Release
+dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release
+dotnet test tests/ClaudeDo.Localization.Tests/ClaudeDo.Localization.Tests.csproj -c Release
+```
+
+---
+
+## File Structure
+
+**Worker / Data (create + modify):**
+- Modify `src/ClaudeDo.Data/Git/GitService.cs` — add `ShowStageAsync` (untrimmed blob read) + `AddPathAsync`; add `trimOutput` param to `RunGitAsync`.
+- Modify `src/ClaudeDo.Worker/Lifecycle/TaskMergeService.cs` — add records `MergeConflicts`/`ConflictFileContent`; add `GetConflictsAsync` + `WriteResolutionAsync`.
+- Modify `src/ClaudeDo.Worker/Hub/WorkerHub.cs` — add DTOs `MergeConflictsDto`/`ConflictFileDto`/`ConflictHunkDto` + 5 hub methods.
+
+**UI (create new only):**
+- Create `src/ClaudeDo.Ui/ViewModels/Conflicts/ConflictModels.cs` — `ConflictFile`, `ConflictHunk`.
+- Create `src/ClaudeDo.Ui/ViewModels/Conflicts/ConflictResolverViewModel.cs`.
+- Create `src/ClaudeDo.Ui/Views/Conflicts/ConflictResolverView.axaml` + `.axaml.cs`.
+
+**Wiring (modify):**
+- Modify `src/ClaudeDo.App/Program.cs` — register `ConflictResolverViewModel` + `Func<string, ConflictResolverViewModel>`.
+- Modify `src/ClaudeDo.Ui/ViewModels/IslandsShellViewModel.cs` — additive seam (`ConflictResolverFactory`, `ShowConflictResolver`, `RequestConflictResolutionAsync`).
+- Modify `src/ClaudeDo.Ui/Views/MainWindow.axaml.cs` — wire `ShowConflictResolver` dialog delegate.
+- Modify `src/ClaudeDo.Localization/locales/en.json` + `de.json` — `conflictResolver.*` keys (parity enforced by Localization.Tests).
+
+**Tests (create + modify):**
+- Modify `tests/ClaudeDo.Worker.Tests/Services/TaskMergeServiceTests.cs` — conflict-read / write-resolution / round-trip tests.
+- Create `tests/ClaudeDo.Ui.Tests/ViewModels/ConflictResolverViewModelTests.cs`.
+
+---
+
+## Task 1: GitService conflict-blob reads
+
+**Files:**
+- Modify: `src/ClaudeDo.Data/Git/GitService.cs`
+- Test: `tests/ClaudeDo.Worker.Tests/Services/TaskMergeServiceTests.cs` (GitService exercised here via real repo; add focused tests in Task 2 round-trip)
+
+- [ ] **Step 1: Add `trimOutput` param to `RunGitAsync`** so blob reads keep exact bytes.
+
+In `RunGitAsync` signature add `bool trimOutput = true`, and change the return to:
+```csharp
+return (proc.ExitCode, trimOutput ? stdout.TrimEnd() : stdout, stderr.TrimEnd());
+```
+(All existing callers keep the default `true`.)
+
+- [ ] **Step 2: Add `ShowStageAsync` + `AddPathAsync`** (place after `ListConflictedFilesAsync`):
+
+```csharp
+/// <summary>
+/// Reads a conflicted file's blob at a merge stage: 1=base, 2=ours, 3=theirs.
+/// Returns null when the stage doesn't exist (e.g. add/add conflict has no base).
+/// Output is NOT trimmed so file content round-trips exactly.
+/// </summary>
+public async Task<string?> ShowStageAsync(string repoDir, int stage, string path, CancellationToken ct = default)
+{
+    var (exitCode, stdout, _) = await RunGitAsync(repoDir, ["show", $":{stage}:{path}"], ct, trimOutput: false);
+    return exitCode == 0 ? stdout : null;
+}
+
+public async Task AddPathAsync(string repoDir, string path, CancellationToken ct = default)
+{
+    var (exitCode, _, stderr) = await RunGitAsync(repoDir, ["add", "--", path], ct);
+    if (exitCode != 0)
+        throw new InvalidOperationException($"git add '{path}' failed (exit {exitCode}): {stderr}");
+}
+```
+
+- [ ] **Step 3: Build the Data + Worker projects to verify compilation.**
+
+Run: `dotnet build src/ClaudeDo.Worker/ClaudeDo.Worker.csproj -c Release`
+Expected: Build succeeded, 0 errors.
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add src/ClaudeDo.Data/Git/GitService.cs
+git commit -m "feat(git): add conflict-stage blob reads and single-path staging"
+```
+
+---
+
+## Task 2: TaskMergeService conflict reads + resolution writes
+
+**Files:**
+- Modify: `src/ClaudeDo.Worker/Lifecycle/TaskMergeService.cs`
+- Test: `tests/ClaudeDo.Worker.Tests/Services/TaskMergeServiceTests.cs`
+
+- [ ] **Step 1: Write failing tests** (append inside `TaskMergeServiceTests`, before `#region Test doubles`). Reuse the existing helpers `SeedListAndTask`, `SeedWorktree`, `BuildService`, and the `GitRepoFixture` conflict setup pattern from `ContinueMergeAsync_AfterUserResolves...`.
+
+```csharp
+[Fact]
+public async Task GetConflictsAsync_AfterConflictMerge_ReturnsOursAndTheirs()
+{
+    if (!GitRepoFixture.IsGitAvailable()) return;
+
+    var db = NewDb();
+    var repo = NewRepo();
+    GitRepoFixture.RunGit(repo.RepoDir, "branch", "-m", "main");
+    File.WriteAllText(Path.Combine(repo.RepoDir, "README.md"), "# main change\n");
+    GitRepoFixture.RunGit(repo.RepoDir, "commit", "-am", "main change");
+
+    var wtPath = Path.Combine(Path.GetTempPath(), $"wt_{Guid.NewGuid():N}");
+    _wtCleanups.Add((repo.RepoDir, wtPath));
+    GitRepoFixture.RunGit(repo.RepoDir, "worktree", "add", "-b", "claudedo/c1", wtPath, repo.BaseCommit);
+    File.WriteAllText(Path.Combine(wtPath, "README.md"), "# branch change\n");
+    GitRepoFixture.RunGit(wtPath, "commit", "-am", "branch change");
+
+    var (_, task) = await SeedListAndTask(db, workingDir: repo.RepoDir, status: TaskStatus.WaitingForReview);
+    await SeedWorktree(db, task.Id, wtPath, "claudedo/c1", repo.BaseCommit);
+
+    var (svc, _) = BuildService(db);
+    var start = await svc.MergeAsync(task.Id, "main", false, "msg", leaveConflictsInTree: true, CancellationToken.None);
+    Assert.Equal(TaskMergeService.StatusConflict, start.Status);
+
+    var conflicts = await svc.GetConflictsAsync(task.Id, CancellationToken.None);
+
+    Assert.Equal(task.Id, conflicts.TaskId);
+    var file = Assert.Single(conflicts.Files);
+    Assert.Equal("README.md", file.Path);
+    Assert.Contains("main change", file.Ours);     // ours = target (main) side after checkout
+    Assert.Contains("branch change", file.Theirs);  // theirs = merged-in branch
+    Assert.NotNull(file.Base);
+
+    GitRepoFixture.RunGit(repo.RepoDir, "merge", "--abort");
+}
+
+[Fact]
+public async Task WriteResolutionAsync_ThenContinue_CompletesMerge()
+{
+    if (!GitRepoFixture.IsGitAvailable()) return;
+
+    var db = NewDb();
+    var repo = NewRepo();
+    GitRepoFixture.RunGit(repo.RepoDir, "branch", "-m", "main");
+    File.WriteAllText(Path.Combine(repo.RepoDir, "README.md"), "# main change\n");
+    GitRepoFixture.RunGit(repo.RepoDir, "commit", "-am", "main change");
+
+    var wtPath = Path.Combine(Path.GetTempPath(), $"wt_{Guid.NewGuid():N}");
+    _wtCleanups.Add((repo.RepoDir, wtPath));
+    GitRepoFixture.RunGit(repo.RepoDir, "worktree", "add", "-b", "claudedo/c2", wtPath, repo.BaseCommit);
+    File.WriteAllText(Path.Combine(wtPath, "README.md"), "# branch change\n");
+    GitRepoFixture.RunGit(wtPath, "commit", "-am", "branch change");
+
+    var (_, task) = await SeedListAndTask(db, workingDir: repo.RepoDir, status: TaskStatus.WaitingForReview);
+    await SeedWorktree(db, task.Id, wtPath, "claudedo/c2", repo.BaseCommit);
+
+    var (svc, _) = BuildService(db);
+    await svc.MergeAsync(task.Id, "main", false, "msg", leaveConflictsInTree: true, CancellationToken.None);
+
+    await svc.WriteResolutionAsync(task.Id, "README.md", "# resolved by user\n", CancellationToken.None);
+    var result = await svc.ContinueMergeAsync(task.Id, CancellationToken.None);
+
+    Assert.Equal(TaskMergeService.StatusMerged, result.Status);
+    Assert.Equal("# resolved by user\n", File.ReadAllText(Path.Combine(repo.RepoDir, "README.md")));
+    Assert.False(await new GitService().IsMidMergeAsync(repo.RepoDir));
+}
+```
+
+- [ ] **Step 2: Run tests to verify they fail** (no such methods).
+
+Run: `dotnet test tests/ClaudeDo.Worker.Tests/ClaudeDo.Worker.Tests.csproj -c Release --filter "GetConflictsAsync_AfterConflictMerge_ReturnsOursAndTheirs|WriteResolutionAsync_ThenContinue_CompletesMerge"`
+Expected: compile error / FAIL (methods don't exist).
+
+- [ ] **Step 3: Add records + methods to `TaskMergeService.cs`.**
+
+Add records beside `MergeResult` (top of file, after the existing record declarations):
+```csharp
+public sealed record MergeConflicts(
+    string TaskId,
+    IReadOnlyList<ConflictFileContent> Files);
+
+public sealed record ConflictFileContent(
+    string Path,
+    string Ours,
+    string Theirs,
+    string? Base);
+```
+
+Add methods inside the class (after `AbortMergeAsync`):
+```csharp
+public async Task<MergeConflicts> GetConflictsAsync(string taskId, CancellationToken ct)
+{
+    var (_, list, _) = await LoadMergeContextAsync(taskId, ct);
+    if (string.IsNullOrWhiteSpace(list.WorkingDir))
+        throw new InvalidOperationException("list has no working directory");
+
+    var files = await _git.ListConflictedFilesAsync(list.WorkingDir, ct);
+    var result = new List<ConflictFileContent>(files.Count);
+    foreach (var path in files)
+    {
+        var ours   = await _git.ShowStageAsync(list.WorkingDir, 2, path, ct) ?? "";
+        var theirs = await _git.ShowStageAsync(list.WorkingDir, 3, path, ct) ?? "";
+        var @base  = await _git.ShowStageAsync(list.WorkingDir, 1, path, ct);
+        result.Add(new ConflictFileContent(path, ours, theirs, @base));
+    }
+    return new MergeConflicts(taskId, result);
+}
+
+public async Task WriteResolutionAsync(string taskId, string path, string content, CancellationToken ct)
+{
+    var (_, list, _) = await LoadMergeContextAsync(taskId, ct);
+    if (string.IsNullOrWhiteSpace(list.WorkingDir))
+        throw new InvalidOperationException("list has no working directory");
+
+    var full = Path.Combine(list.WorkingDir, path.Replace('/', Path.DirectorySeparatorChar));
+    await File.WriteAllTextAsync(full, content, ct);
+    await _git.AddPathAsync(list.WorkingDir, path, ct);
+}
+```
+(Note: `Path` is `System.IO.Path` — the file already uses it via other helpers; the record property `Path` does not shadow it inside these methods because it's accessed as a static type, not an instance member.)
+
+- [ ] **Step 4: Run the tests to verify they pass.**
+
+Run: `dotnet test tests/ClaudeDo.Worker.Tests/ClaudeDo.Worker.Tests.csproj -c Release --filter "GetConflictsAsync_AfterConflictMerge_ReturnsOursAndTheirs|WriteResolutionAsync_ThenContinue_CompletesMerge"`
+Expected: PASS (2 tests). If git unavailable they no-op.
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/ClaudeDo.Worker/Lifecycle/TaskMergeService.cs tests/ClaudeDo.Worker.Tests/Services/TaskMergeServiceTests.cs
+git commit -m "feat(merge): read conflict stages and write user resolutions"
+```
+
+---
+
+## Task 3: WorkerHub conflict methods + DTOs
+
+**Files:**
+- Modify: `src/ClaudeDo.Worker/Hub/WorkerHub.cs`
+
+- [ ] **Step 1: Add DTOs** beside the existing merge DTOs (after `public record MergeTargetsDto(...)`):
+
+```csharp
+public record MergeConflictsDto(string TaskId, IReadOnlyList<ConflictFileDto> Files);
+public record ConflictFileDto(string Path, IReadOnlyList<ConflictHunkDto> Hunks);
+public record ConflictHunkDto(string Ours, string Theirs, string? Base);
+```
+
+- [ ] **Step 2: Add the 5 hub methods** (after `PreviewMerge`). Names/params/returns MUST match the frozen client calls.
+
+```csharp
+public Task<MergeResultDto> StartConflictMerge(string taskId, string targetBranch)
+    => HubGuard(async () =>
+    {
+        var r = await _mergeService.MergeAsync(
+            taskId, targetBranch ?? "", removeWorktree: false, "Merge task",
+            leaveConflictsInTree: true, CancellationToken.None);
+        if (r.Status == TaskMergeService.StatusBlocked)
+            throw new HubException(r.ErrorMessage ?? "merge blocked");
+        return new MergeResultDto(r.Status, r.ConflictFiles, r.ErrorMessage);
+    });
+
+public Task<MergeConflictsDto> GetMergeConflicts(string taskId)
+    => HubGuard(async () =>
+    {
+        var c = await _mergeService.GetConflictsAsync(taskId, CancellationToken.None);
+        return new MergeConflictsDto(
+            c.TaskId,
+            c.Files.Select(f => new ConflictFileDto(
+                f.Path,
+                new[] { new ConflictHunkDto(f.Ours, f.Theirs, f.Base) })).ToList());
+    });
+
+public Task WriteConflictResolution(string taskId, string path, string resolvedContent)
+    => HubGuard(() => _mergeService.WriteResolutionAsync(
+        taskId, path, resolvedContent ?? "", CancellationToken.None));
+
+public Task<MergeResultDto> ContinueMerge(string taskId)
+    => HubGuard(async () =>
+    {
+        var r = await _mergeService.ContinueMergeAsync(taskId, CancellationToken.None);
+        if (r.Status == TaskMergeService.StatusBlocked)
+            throw new HubException(r.ErrorMessage ?? "continue failed");
+        return new MergeResultDto(r.Status, r.ConflictFiles, r.ErrorMessage);
+    });
+
+public Task AbortMerge(string taskId)
+    => HubGuard(async () =>
+    {
+        var r = await _mergeService.AbortMergeAsync(taskId, CancellationToken.None);
+        if (r.Status == TaskMergeService.StatusBlocked)
+            throw new HubException(r.ErrorMessage ?? "abort failed");
+    });
+```
+
+- [ ] **Step 3: Build the Worker project to verify compilation.**
+
+Run: `dotnet build src/ClaudeDo.Worker/ClaudeDo.Worker.csproj -c Release`
+Expected: Build succeeded, 0 errors.
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add src/ClaudeDo.Worker/Hub/WorkerHub.cs
+git commit -m "feat(hub): expose conflict-resolution merge methods"
+```
+
+---
+
+## Task 4: Conflict UI model
+
+**Files:**
+- Create: `src/ClaudeDo.Ui/ViewModels/Conflicts/ConflictModels.cs`
+- Test: `tests/ClaudeDo.Ui.Tests/ViewModels/ConflictResolverViewModelTests.cs` (model tests added here in Task 5; this task is build-verified)
+
+- [ ] **Step 1: Create the model file.** Shaped so a 3-way pane needs no model change (`Base` retained per hunk).
+
+```csharp
+using System.Collections.Generic;
+using System.Linq;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace ClaudeDo.Ui.ViewModels.Conflicts;
+
+public sealed partial class ConflictHunk : ObservableObject
+{
+    public string Ours { get; }
+    public string Theirs { get; }
+    public string? Base { get; }
+
+    [ObservableProperty] private string? _resolution;
+
+    public bool IsResolved => Resolution is not null;
+
+    public ConflictHunk(string ours, string theirs, string? @base)
+    {
+        Ours = ours;
+        Theirs = theirs;
+        Base = @base;
+    }
+
+    partial void OnResolutionChanged(string? value) => OnPropertyChanged(nameof(IsResolved));
+
+    [RelayCommand] private void AcceptCurrent()  => Resolution = Ours;
+    [RelayCommand] private void AcceptIncoming() => Resolution = Theirs;
+    [RelayCommand] private void AcceptBoth()     => Resolution = Ours + Theirs;
+    [RelayCommand] private void EditManually()   => Resolution ??= Ours;
+}
+
+public sealed class ConflictFile
+{
+    public string Path { get; }
+    public IReadOnlyList<ConflictHunk> Hunks { get; }
+
+    public ConflictFile(string path, IReadOnlyList<ConflictHunk> hunks)
+    {
+        Path = path;
+        Hunks = hunks;
+    }
+
+    public bool AllHunksResolved => Hunks.Count > 0 && Hunks.All(h => h.IsResolved);
+
+    /// <summary>The merged file content: concatenation of each hunk's resolution
+    /// (single whole-file hunk today; concatenation keeps it correct for multi-hunk later).</summary>
+    public string ComposeResolvedContent() => string.Concat(Hunks.Select(h => h.Resolution));
+}
+```
+
+- [ ] **Step 2: Build the Ui project to verify compilation.**
+
+Run: `dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release`
+Expected: Build succeeded.
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add src/ClaudeDo.Ui/ViewModels/Conflicts/ConflictModels.cs
+git commit -m "feat(ui): add inline conflict model (file/hunk with resolution)"
+```
+
+---
+
+## Task 5: ConflictResolverViewModel
+
+**Files:**
+- Create: `src/ClaudeDo.Ui/ViewModels/Conflicts/ConflictResolverViewModel.cs`
+- Test: `tests/ClaudeDo.Ui.Tests/ViewModels/ConflictResolverViewModelTests.cs`
+
+- [ ] **Step 1: Write failing tests.** Subclass the existing `StubWorkerClient` (its conflict methods are `virtual`).
+
+```csharp
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using ClaudeDo.Ui.Services;
+using ClaudeDo.Ui.ViewModels.Conflicts;
+using Xunit;
+
+namespace ClaudeDo.Ui.Tests.ViewModels;
+
+public class ConflictResolverViewModelTests
+{
+    private sealed class FakeWorker : StubWorkerClient
+    {
+        public string? WrittenPath;
+        public string? WrittenContent;
+        public bool Continued;
+        public bool Aborted;
+        public string ContinueStatus = "merged";
+
+        public override Task<MergeResultDto> StartConflictMergeAsync(string taskId, string targetBranch)
+            => Task.FromResult(new MergeResultDto("conflict", new[] { "README.md" }, null));
+
+        public override Task<MergeConflictsDto> GetMergeConflictsAsync(string taskId)
+            => Task.FromResult(new MergeConflictsDto(taskId, new[]
+            {
+                new ConflictFileDto("README.md", new[] { new ConflictHunkDto("ours\n", "theirs\n", "base\n") })
+            }));
+
+        public override Task WriteConflictResolutionAsync(string taskId, string path, string resolvedContent)
+        {
+            WrittenPath = path; WrittenContent = resolvedContent; return Task.CompletedTask;
+        }
+
+        public override Task<MergeResultDto> ContinueMergeAsync(string taskId)
+        {
+            Continued = true;
+            return Task.FromResult(new MergeResultDto(ContinueStatus, System.Array.Empty<string>(), null));
+        }
+
+        public override Task AbortMergeAsync(string taskId) { Aborted = true; return Task.CompletedTask; }
+    }
+
+    [Fact]
+    public async Task OpenAsync_LoadsConflicts_AndBlocksContinueUntilResolved()
+    {
+        var vm = new ConflictResolverViewModel(new FakeWorker(), "task-1");
+        var hasConflicts = await vm.OpenAsync("main");
+
+        Assert.True(hasConflicts);
+        var file = Assert.Single(vm.Files);
+        Assert.Equal("README.md", file.Path);
+        Assert.False(vm.CanContinue);                 // nothing resolved yet
+
+        file.Hunks[0].AcceptIncomingCommand.Execute(null);
+        Assert.True(vm.CanContinue);                   // every hunk resolved
+    }
+
+    [Fact]
+    public async Task Continue_WritesComposedResolution_AndClosesOnMerged()
+    {
+        var worker = new FakeWorker();
+        var vm = new ConflictResolverViewModel(worker, "task-1");
+        var closed = false;
+        vm.CloseRequested = () => closed = true;
+
+        await vm.OpenAsync("main");
+        vm.Files[0].Hunks[0].AcceptCurrentCommand.Execute(null);   // resolution = "ours\n"
+        await vm.ContinueCommand.ExecuteAsync(null);
+
+        Assert.Equal("README.md", worker.WrittenPath);
+        Assert.Equal("ours\n", worker.WrittenContent);
+        Assert.True(worker.Continued);
+        Assert.True(closed);
+    }
+
+    [Fact]
+    public async Task Continue_StaysOpenAndReportsError_WhenStillConflicted()
+    {
+        var worker = new FakeWorker { ContinueStatus = "conflict" };
+        var vm = new ConflictResolverViewModel(worker, "task-1");
+        var closed = false;
+        vm.CloseRequested = () => closed = true;
+
+        await vm.OpenAsync("main");
+        vm.Files[0].Hunks[0].AcceptBothCommand.Execute(null);
+        await vm.ContinueCommand.ExecuteAsync(null);
+
+        Assert.False(closed);
+        Assert.NotNull(vm.Error);
+    }
+
+    [Fact]
+    public async Task Abort_CallsWorkerAndCloses()
+    {
+        var worker = new FakeWorker();
+        var vm = new ConflictResolverViewModel(worker, "task-1");
+        var closed = false;
+        vm.CloseRequested = () => closed = true;
+
+        await vm.AbortCommand.ExecuteAsync(null);
+
+        Assert.True(worker.Aborted);
+        Assert.True(closed);
+    }
+}
+```
+
+- [ ] **Step 2: Run tests to verify they fail** (VM not defined).
+
+Run: `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release --filter "ConflictResolverViewModelTests"`
+Expected: compile error / FAIL.
+
+- [ ] **Step 3: Implement the ViewModel.**
+
+```csharp
+using System;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Linq;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using ClaudeDo.Ui.Services;
+
+namespace ClaudeDo.Ui.ViewModels.Conflicts;
+
+public sealed partial class ConflictResolverViewModel : ObservableObject
+{
+    private readonly IWorkerClient _worker;
+    private readonly string _taskId;
+
+    public ObservableCollection<ConflictFile> Files { get; } = new();
+
+    [ObservableProperty] private bool _isBusy;
+    [ObservableProperty] private string? _error;
+    [ObservableProperty] private bool _canContinue;
+
+    public string TaskId => _taskId;
+    public Action? CloseRequested { get; set; }
+
+    public ConflictResolverViewModel(IWorkerClient worker, string taskId)
+    {
+        _worker = worker;
+        _taskId = taskId;
+    }
+
+    /// <summary>Starts the conflict merge and loads ours/theirs/base per file.
+    /// Returns true when there are conflicts to resolve (caller should show the dialog).</summary>
+    public async Task<bool> OpenAsync(string targetBranch)
+    {
+        IsBusy = true;
+        Error = null;
+        try
+        {
+            var start = await _worker.StartConflictMergeAsync(_taskId, targetBranch);
+            if (!string.Equals(start.Status, "conflict", StringComparison.Ordinal))
+            {
+                if (string.Equals(start.Status, "blocked", StringComparison.Ordinal))
+                    Error = start.ErrorMessage;
+                return false;
+            }
+
+            var conflicts = await _worker.GetMergeConflictsAsync(_taskId);
+            Files.Clear();
+            foreach (var f in conflicts.Files)
+            {
+                var hunks = f.Hunks.Select(h =>
+                {
+                    var hk = new ConflictHunk(h.Ours, h.Theirs, h.Base);
+                    hk.PropertyChanged += OnHunkChanged;
+                    return hk;
+                }).ToList();
+                Files.Add(new ConflictFile(f.Path, hunks));
+            }
+            RecomputeCanContinue();
+            return Files.Count > 0;
+        }
+        catch (Exception ex)
+        {
+            Error = ex.Message;
+            return false;
+        }
+        finally { IsBusy = false; }
+    }
+
+    private void OnHunkChanged(object? sender, PropertyChangedEventArgs e)
+    {
+        if (e.PropertyName is nameof(ConflictHunk.IsResolved) or nameof(ConflictHunk.Resolution))
+            RecomputeCanContinue();
+    }
+
+    private void RecomputeCanContinue()
+        => CanContinue = Files.Count > 0 && Files.All(f => f.AllHunksResolved);
+
+    [RelayCommand]
+    private async Task ContinueAsync()
+    {
+        if (!CanContinue) return;
+        IsBusy = true;
+        Error = null;
+        try
+        {
+            foreach (var file in Files)
+                await _worker.WriteConflictResolutionAsync(_taskId, file.Path, file.ComposeResolvedContent());
+
+            var result = await _worker.ContinueMergeAsync(_taskId);
+            if (string.Equals(result.Status, "merged", StringComparison.Ordinal))
+                CloseRequested?.Invoke();
+            else
+                Error = result.ErrorMessage ?? "Conflicts not fully resolved — review and retry.";
+        }
+        catch (Exception ex)
+        {
+            Error = ex.Message;
+        }
+        finally { IsBusy = false; }
+    }
+
+    [RelayCommand]
+    private async Task AbortAsync()
+    {
+        IsBusy = true;
+        try { await _worker.AbortMergeAsync(_taskId); }
+        catch (Exception ex) { Error = ex.Message; }
+        finally
+        {
+            IsBusy = false;
+            CloseRequested?.Invoke();
+        }
+    }
+}
+```
+
+- [ ] **Step 4: Run tests to verify they pass.**
+
+Run: `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release --filter "ConflictResolverViewModelTests"`
+Expected: PASS (4 tests).
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/ClaudeDo.Ui/ViewModels/Conflicts/ConflictResolverViewModel.cs tests/ClaudeDo.Ui.Tests/ViewModels/ConflictResolverViewModelTests.cs
+git commit -m "feat(ui): add inline conflict resolver view-model"
+```
+
+---
+
+## Task 6: ConflictResolverView + localization
+
+**Files:**
+- Create: `src/ClaudeDo.Ui/Views/Conflicts/ConflictResolverView.axaml`
+- Create: `src/ClaudeDo.Ui/Views/Conflicts/ConflictResolverView.axaml.cs`
+- Modify: `src/ClaudeDo.Localization/locales/en.json`
+- Modify: `src/ClaudeDo.Localization/locales/de.json`
+
+- [ ] **Step 1: Add localization keys** to `en.json` as a new top-level section (sibling of `"planning"`):
+
+```json
+  "conflictResolver": {
+    "windowTitle": "Resolve merge conflicts",
+    "modalTitle": "RESOLVE CONFLICTS",
+    "loading": "Loading conflicts…",
+    "current": "Current (ours)",
+    "incoming": "Incoming (theirs)",
+    "mergedResult": "Merged result",
+    "acceptCurrent": "Accept Current",
+    "acceptIncoming": "Accept Incoming",
+    "acceptBoth": "Accept Both",
+    "editManually": "Edit manually",
+    "continue": "Resolve & continue",
+    "abort": "Abort merge"
+  },
+```
+
+- [ ] **Step 2: Add the SAME keys to `de.json`** (German values, identical key set — parity enforced by Localization.Tests):
+
+```json
+  "conflictResolver": {
+    "windowTitle": "Merge-Konflikte lösen",
+    "modalTitle": "KONFLIKTE LÖSEN",
+    "loading": "Konflikte werden geladen…",
+    "current": "Aktuell (unsere)",
+    "incoming": "Eingehend (ihre)",
+    "mergedResult": "Zusammengeführtes Ergebnis",
+    "acceptCurrent": "Aktuelle übernehmen",
+    "acceptIncoming": "Eingehende übernehmen",
+    "acceptBoth": "Beide übernehmen",
+    "editManually": "Manuell bearbeiten",
+    "continue": "Lösen & fortfahren",
+    "abort": "Merge abbrechen"
+  },
+```
+
+- [ ] **Step 3: Create the View** (`ConflictResolverView.axaml`). A `Window` using `ModalShell`, mirroring `ConflictResolutionView.axaml`. Two stacked read-only boxes (ours/theirs), a button row, and a two-way merged-result box per hunk.
+
+```xml
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:ClaudeDo.Ui.ViewModels.Conflicts"
+        xmlns:ctl="using:ClaudeDo.Ui.Views.Controls"
+        xmlns:loc="using:ClaudeDo.Ui.Localization"
+        x:DataType="vm:ConflictResolverViewModel"
+        x:Class="ClaudeDo.Ui.Views.Conflicts.ConflictResolverView"
+        Title="{loc:Tr conflictResolver.windowTitle}"
+        Width="760" Height="640" MinWidth="560" MinHeight="420"
+        CanResize="True"
+        WindowDecorations="BorderOnly"
+        ExtendClientAreaToDecorationsHint="True"
+        ExtendClientAreaTitleBarHeightHint="-1"
+        WindowStartupLocation="CenterOwner"
+        Background="{DynamicResource SurfaceBrush}">
+
+  <Window.KeyBindings>
+    <KeyBinding Gesture="Escape" Command="{Binding AbortCommand}"/>
+  </Window.KeyBindings>
+
+  <ctl:ModalShell Title="{loc:Tr conflictResolver.modalTitle}" CloseCommand="{Binding AbortCommand}">
+    <ctl:ModalShell.Footer>
+      <StackPanel Orientation="Horizontal" Spacing="8"
+                  HorizontalAlignment="Right" VerticalAlignment="Center">
+        <Button Classes="btn" Content="{loc:Tr conflictResolver.continue}"
+                Command="{Binding ContinueCommand}" IsEnabled="{Binding CanContinue}"/>
+        <Button Classes="btn" Content="{loc:Tr conflictResolver.abort}" Command="{Binding AbortCommand}"/>
+      </StackPanel>
+    </ctl:ModalShell.Footer>
+
+    <Grid RowDefinitions="Auto,*" Margin="16,12">
+      <TextBlock Grid.Row="0" Classes="meta" Margin="0,0,0,8"
+                 Text="{loc:Tr conflictResolver.loading}"
+                 IsVisible="{Binding IsBusy}"/>
+      <TextBlock Grid.Row="0" Classes="meta" Foreground="{DynamicResource BloodBrush}"
+                 Text="{Binding Error}" TextWrapping="Wrap"
+                 IsVisible="{Binding Error, Converter={x:Static ObjectConverters.IsNotNull}}"/>
+
+      <ScrollViewer Grid.Row="1">
+        <ItemsControl ItemsSource="{Binding Files}">
+          <ItemsControl.ItemTemplate>
+            <DataTemplate x:DataType="vm:ConflictFile">
+              <StackPanel Spacing="8" Margin="0,0,0,16">
+                <TextBlock Classes="path-mono heading" Text="{Binding Path}"/>
+                <ItemsControl ItemsSource="{Binding Hunks}">
+                  <ItemsControl.ItemTemplate>
+                    <DataTemplate x:DataType="vm:ConflictHunk">
+                      <Border BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1"
+                              CornerRadius="6" Padding="10" Margin="0,0,0,8">
+                        <StackPanel Spacing="6">
+                          <TextBlock Classes="meta" Text="{loc:Tr conflictResolver.current}"/>
+                          <TextBox Text="{Binding Ours, Mode=OneWay}" IsReadOnly="True"
+                                   TextWrapping="NoWrap" AcceptsReturn="True" MaxHeight="120"
+                                   FontFamily="{DynamicResource MonoFont}"/>
+                          <TextBlock Classes="meta" Text="{loc:Tr conflictResolver.incoming}"/>
+                          <TextBox Text="{Binding Theirs, Mode=OneWay}" IsReadOnly="True"
+                                   TextWrapping="NoWrap" AcceptsReturn="True" MaxHeight="120"
+                                   FontFamily="{DynamicResource MonoFont}"/>
+                          <StackPanel Orientation="Horizontal" Spacing="6">
+                            <Button Classes="btn" Content="{loc:Tr conflictResolver.acceptCurrent}"
+                                    Command="{Binding AcceptCurrentCommand}"/>
+                            <Button Classes="btn" Content="{loc:Tr conflictResolver.acceptIncoming}"
+                                    Command="{Binding AcceptIncomingCommand}"/>
+                            <Button Classes="btn" Content="{loc:Tr conflictResolver.acceptBoth}"
+                                    Command="{Binding AcceptBothCommand}"/>
+                            <Button Classes="btn" Content="{loc:Tr conflictResolver.editManually}"
+                                    Command="{Binding EditManuallyCommand}"/>
+                          </StackPanel>
+                          <TextBlock Classes="meta" Text="{loc:Tr conflictResolver.mergedResult}"/>
+                          <TextBox Text="{Binding Resolution, Mode=TwoWay}"
+                                   TextWrapping="NoWrap" AcceptsReturn="True" MinHeight="80" MaxHeight="200"
+                                   FontFamily="{DynamicResource MonoFont}"/>
+                        </StackPanel>
+                      </Border>
+                    </DataTemplate>
+                  </ItemsControl.ItemTemplate>
+                </ItemsControl>
+              </StackPanel>
+            </DataTemplate>
+          </ItemsControl.ItemTemplate>
+        </ItemsControl>
+      </ScrollViewer>
+    </Grid>
+  </ctl:ModalShell>
+</Window>
+```
+**Note for the implementer:** if `MonoFont` / `path-mono` / `heading` / `meta` / `btn` resource keys or style classes don't resolve at build, drop the `FontFamily` attribute and unknown `Classes` (keep `btn`) — match whatever the existing `ConflictResolutionView.axaml` and app styles actually expose. Verify against `src/ClaudeDo.Ui/Views/Planning/ConflictResolutionView.axaml` and the app's style resources before finalizing.
+
+- [ ] **Step 4: Create the code-behind** (`ConflictResolverView.axaml.cs`):
+
+```csharp
+using Avalonia.Controls;
+using ClaudeDo.Ui.ViewModels.Conflicts;
+
+namespace ClaudeDo.Ui.Views.Conflicts;
+
+public partial class ConflictResolverView : Window
+{
+    public ConflictResolverView()
+    {
+        InitializeComponent();
+    }
+
+    protected override void OnDataContextChanged(System.EventArgs e)
+    {
+        base.OnDataContextChanged(e);
+        if (DataContext is ConflictResolverViewModel vm)
+            vm.CloseRequested = Close;
+    }
+}
+```
+
+- [ ] **Step 5: Build the App + run Localization tests.**
+
+Run: `dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release && dotnet test tests/ClaudeDo.Localization.Tests/ClaudeDo.Localization.Tests.csproj -c Release`
+Expected: Build succeeded; localization parity tests PASS.
+
+- [ ] **Step 6: Commit**
+
+```bash
+git add src/ClaudeDo.Ui/Views/Conflicts/ConflictResolverView.axaml src/ClaudeDo.Ui/Views/Conflicts/ConflictResolverView.axaml.cs src/ClaudeDo.Localization/locales/en.json src/ClaudeDo.Localization/locales/de.json
+git commit -m "feat(ui): add inline conflict resolver view and localization"
+```
+
+---
+
+## Task 7: Wire factory + dialog seam for the integrator
+
+**Files:**
+- Modify: `src/ClaudeDo.App/Program.cs`
+- Modify: `src/ClaudeDo.Ui/ViewModels/IslandsShellViewModel.cs`
+- Modify: `src/ClaudeDo.Ui/Views/MainWindow.axaml.cs`
+
+These are additive seams only. The integrator connects Layer A/B's `RequestConflictResolution(taskId, target)` callback to `IslandsShellViewModel.RequestConflictResolutionAsync`.
+
+- [ ] **Step 1: Register the factory in `Program.cs`** (in the ViewModels region, near the other `Func<>` factories). Only the `Func<>` factory is needed — the VM is never resolved directly:
+
+```csharp
+sc.AddSingleton<Func<string, ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel>>(sp =>
+    taskId => new ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel(
+        sp.GetRequiredService<WorkerClient>(), taskId));
+```
+Then, after `IslandsShellViewModel` is registered, set the factory on it once resolved. Replace the existing `sc.AddSingleton<IslandsShellViewModel>();` registration with a factory that injects the conflict-resolver factory:
+
+```csharp
+sc.AddSingleton<IslandsShellViewModel>(sp =>
+{
+    var shell = ActivatorUtilities.CreateInstance<IslandsShellViewModel>(sp);
+    shell.ConflictResolverFactory =
+        sp.GetRequiredService<Func<string, ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel>>();
+    return shell;
+});
+```
+(`ActivatorUtilities.CreateInstance` resolves the existing big constructor + its `Func<>` deps exactly as the default registration did.)
+
+- [ ] **Step 2: Add the additive seam to `IslandsShellViewModel`** (near the other `Show*` delegate properties):
+
+```csharp
+// Layer C seam: composition root sets the factory; MainWindow sets the dialog opener.
+// The integrator connects Layer A/B's RequestConflictResolution(taskId, target) to this method.
+public Func<string, ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel>? ConflictResolverFactory { get; set; }
+public Func<ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel, Task>? ShowConflictResolver { get; set; }
+
+public async Task RequestConflictResolutionAsync(string taskId, string targetBranch)
+{
+    if (ConflictResolverFactory is null || ShowConflictResolver is null) return;
+    var vm = ConflictResolverFactory(taskId);
+    var hasConflicts = await vm.OpenAsync(targetBranch);
+    if (hasConflicts)
+        await ShowConflictResolver(vm);
+}
+```
+(Add `using ClaudeDo.Ui.ViewModels.Conflicts;` or use fully-qualified names as above.)
+
+- [ ] **Step 3: Wire the dialog opener in `MainWindow.axaml.cs`** inside `OnDataContextChanged`, alongside the other `vm.Show*` assignments:
+
+```csharp
+vm.ShowConflictResolver = async (resolverVm) =>
+{
+    var dlg = new ClaudeDo.Ui.Views.Conflicts.ConflictResolverView { DataContext = resolverVm };
+    await dlg.ShowDialog(this);
+};
+```
+
+- [ ] **Step 4: Build the App to verify compilation.**
+
+Run: `dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release`
+Expected: Build succeeded.
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/ClaudeDo.App/Program.cs src/ClaudeDo.Ui/ViewModels/IslandsShellViewModel.cs src/ClaudeDo.Ui/Views/MainWindow.axaml.cs
+git commit -m "feat(ui): expose conflict-resolver factory and dialog seam for integrator"
+```
+
+---
+
+## Task 8: Full verification
+
+- [ ] **Step 1: Build both head projects.**
+
+Run:
+```bash
+dotnet build src/ClaudeDo.Worker/ClaudeDo.Worker.csproj -c Release
+dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release
+```
+Expected: both Build succeeded, 0 errors/warnings.
+
+- [ ] **Step 2: Run the full relevant test suites.**
+
+Run:
+```bash
+dotnet test tests/ClaudeDo.Worker.Tests/ClaudeDo.Worker.Tests.csproj -c Release
+dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release
+dotnet test tests/ClaudeDo.Localization.Tests/ClaudeDo.Localization.Tests.csproj -c Release
+```
+Expected: all PASS.
+
+- [ ] **Step 3: Flag visual verification.** The resolver dialog cannot be opened end-to-end until the integrator wires Layer A/B's `RequestConflictResolution(taskId, target)` → `IslandsShellViewModel.RequestConflictResolutionAsync`. Report this as a visual-verification gap for the user/integrator: open a real conflicting merge, confirm hunks render, Accept buttons populate the merged box, Resolve & continue closes on success, Abort restores the tree.
+
+- [ ] **Step 4: Leave the branch for the orchestrator.** Do NOT push, do NOT merge to main.

docs/superpowers/plans/2026-06-05-merge-cockpit-layer-b.md

@@ -0,0 +1,837 @@
+# Layer B — Multi-Worktree Merge Cockpit Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Turn the worktrees-overview modal into a batch-merge cockpit (multi-select N worktrees → one target branch → "Merge all" with skip-and-continue conflict collection), and migrate `WorktreeModalView`'s bespoke inline diff onto the canonical `DiffLinesView`.
+
+**Architecture:** The cockpit VM keeps depending on the concrete `WorkerClient` (the overview/cleanup/state methods live only on `WorkerClient`, not `IWorkerClient`). The batch loop is extracted into a delegate-driven method `MergeSelectedAsync(Func<...> mergeFn)` so it is unit-testable with a fake merge function and a never-connected `WorkerClient`. Clean merges (`Status=="merged"`) update the row; conflicts (`Status=="conflict"`, which `MergeTaskAsync` already auto-aborts) are collected into a `ConflictRows` list whose rows expose a `Resolve` button wired to an inert `RequestConflictResolution(taskId, targetBranch)` seam. The diff migration replaces the right-pane `ItemsControl` in `WorktreeModalView` with `DiffLinesView`, feeding it `DiffLineViewModel`s produced by `UnifiedDiffParser`, and deletes the now-dead `WorktreeDiffLineViewModel`/`WorktreeDiffLineKind`.
+
+**Tech Stack:** .NET 8, Avalonia 12, CommunityToolkit.Mvvm source generators, xUnit. Build UI with `dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release`; run `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release`.
+
+**Frozen contracts reused (do NOT modify):**
+- `WorkerClient.MergeTaskAsync(string taskId, string targetBranch, bool removeWorktree, string commitMessage) -> Task<MergeResultDto>`
+- `WorkerClient.GetMergeTargetsAsync(string taskId) -> Task<MergeTargetsDto?>` (`MergeTargetsDto(string DefaultBranch, IReadOnlyList<string> LocalBranches)`)
+- `MergeResultDto(string Status, IReadOnlyList<string> ConflictFiles, string? ErrorMessage)` — `Status` is `"merged" | "conflict" | "blocked" | <other>`
+- `WorkerClient.GetWorktreesOverviewAsync`, `CleanupFinishedWorktreesAsync`, `SetWorktreeStateAsync`, `ForceRemoveWorktreeAsync`
+- `GitService.GetFileDiffAsync(worktreePath, baseCommit?, relativePath)` returns a `git diff` blob including the `diff --git` header (so `UnifiedDiffParser.Parse` handles it)
+- `DiffLinesView` (`Lines` styled property, `IEnumerable?`), `DiffLineViewModel`, `DiffFileViewModel`, `UnifiedDiffParser.Parse` / `.Flatten`
+
+**Do NOT touch:** any worker-side files (`WorkerHub`, `TaskMergeService`, `GitService`), `IWorkerClient.cs` / `WorkerClient.cs`, `WorkConsole.axaml`, `DetailsIslandViewModel.cs`, and do not create any `ConflictResolver` UI or reference any `ConflictResolver` type.
+
+---
+
+## File Structure
+
+- `src/ClaudeDo.Ui/ViewModels/Modals/WorktreesOverviewModalViewModel.cs` — **modify.** Add `BatchMergeOutcome` enum; add `IsChecked`/`MergeOutcome` (+ derived) to the row VM; add `MergeTargets`, `SelectedTarget`, `SelectedCount`, `IsMerging`, `BatchProgress`, `ConflictRows`, the `RequestConflictResolution` seam, `MergeSelectedAsync`, `MergeAllCommand`, `ResolveConflictCommand`, `ToggleSelectAllCommand`, target loading, and per-row check subscription. Keep all existing context-menu commands/wiring intact.
+- `src/ClaudeDo.Ui/Views/Modals/WorktreesOverviewModalView.axaml` — **modify.** Add a per-row checkbox + outcome badge, a target `ComboBox` + "Merge all" button + progress text in the toolbar, and a "Needs resolution" panel listing `ConflictRows` with `Resolve` buttons.
+- `src/ClaudeDo.Ui/ViewModels/Modals/WorktreeModalViewModel.cs` — **modify.** Replace `SelectedFileDiffLines` element type with `DiffLineViewModel` produced via `UnifiedDiffParser`; delete `WorktreeDiffLineKind` and `WorktreeDiffLineViewModel`.
+- `src/ClaudeDo.Ui/Views/Modals/WorktreeModalView.axaml` — **modify.** Replace the right-pane `ItemsControl` with `ctl:DiffLinesView`; drop the `DiffLineKindToBrushConverter` resource.
+- `src/ClaudeDo.Localization/locales/en.json` + `de.json` — **modify.** Add new `modals.worktreesOverview.*` and `vm.worktreesOverview.*` keys (keep parity).
+- `tests/ClaudeDo.Ui.Tests/ViewModels/WorktreesOverviewBatchMergeTests.cs` — **create.** Unit tests for `MergeSelectedAsync` skip-and-continue, conflict collection, progress, selection gating, and the resolve seam.
+
+No `IWorkerClient` change → no test-fake updates needed.
+
+---
+
+## Task 1: Row-level batch state (outcome enum + row VM fields)
+
+**Files:**
+- Modify: `src/ClaudeDo.Ui/ViewModels/Modals/WorktreesOverviewModalViewModel.cs`
+- Test: `tests/ClaudeDo.Ui.Tests/ViewModels/WorktreesOverviewBatchMergeTests.cs`
+
+- [ ] **Step 1: Write the failing test**
+
+Create `tests/ClaudeDo.Ui.Tests/ViewModels/WorktreesOverviewBatchMergeTests.cs`:
+
+```csharp
+using ClaudeDo.Data.Models;
+using ClaudeDo.Ui.ViewModels.Modals;
+using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
+using Xunit;
+
+namespace ClaudeDo.Ui.Tests.ViewModels;
+
+public class WorktreesOverviewBatchMergeTests
+{
+    private static WorktreeOverviewRowViewModel ActiveRow(string id) => new()
+    {
+        TaskId = id,
+        TaskTitle = $"Task {id}",
+        TaskStatus = TaskStatus.WaitingForReview,
+        State = WorktreeState.Active,
+    };
+
+    [Fact]
+    public void Row_outcome_helpers_reflect_state()
+    {
+        var row = ActiveRow("a");
+        Assert.Equal(BatchMergeOutcome.None, row.MergeOutcome);
+        Assert.False(row.IsConflict);
+
+        row.MergeOutcome = BatchMergeOutcome.Conflict;
+        Assert.True(row.IsConflict);
+
+        row.MergeOutcome = BatchMergeOutcome.Merged;
+        Assert.False(row.IsConflict);
+    }
+}
+```
+
+- [ ] **Step 2: Run test to verify it fails**
+
+Run: `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release --filter WorktreesOverviewBatchMergeTests`
+Expected: FAIL — `BatchMergeOutcome` and `MergeOutcome`/`IsConflict` do not exist (compile error).
+
+- [ ] **Step 3: Add the enum and row fields**
+
+In `WorktreesOverviewModalViewModel.cs`, add the enum just above `WorktreeOverviewRowViewModel`:
+
+```csharp
+public enum BatchMergeOutcome { None, Merging, Merged, Conflict, Blocked, Failed }
+```
+
+Inside `WorktreeOverviewRowViewModel`, add after the existing `_isSelected` field:
+
+```csharp
+    [ObservableProperty] private bool _isChecked;
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(IsConflict))]
+    [NotifyPropertyChangedFor(nameof(HasOutcome))]
+    private BatchMergeOutcome _mergeOutcome;
+
+    public bool IsConflict => MergeOutcome == BatchMergeOutcome.Conflict;
+    public bool HasOutcome => MergeOutcome != BatchMergeOutcome.None;
+```
+
+- [ ] **Step 4: Run test to verify it passes**
+
+Run: `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release --filter WorktreesOverviewBatchMergeTests`
+Expected: PASS (1 test).
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/ClaudeDo.Ui/ViewModels/Modals/WorktreesOverviewModalViewModel.cs tests/ClaudeDo.Ui.Tests/ViewModels/WorktreesOverviewBatchMergeTests.cs
+git commit -m "feat(ui): add batch-merge row state to worktrees cockpit VM"
+```
+
+---
+
+## Task 2: Batch orchestration (`MergeSelectedAsync` skip-and-continue)
+
+**Files:**
+- Modify: `src/ClaudeDo.Ui/ViewModels/Modals/WorktreesOverviewModalViewModel.cs`
+- Test: `tests/ClaudeDo.Ui.Tests/ViewModels/WorktreesOverviewBatchMergeTests.cs`
+
+- [ ] **Step 1: Write the failing tests**
+
+Append to `WorktreesOverviewBatchMergeTests.cs`. The helper builds a VM with a never-connected `WorkerClient` (the loop never touches it) and seeds `Rows` directly:
+
+```csharp
+    private static WorktreesOverviewModalViewModel NewVm() =>
+        new(new ClaudeDo.Ui.Services.WorkerClient("http://127.0.0.1:1/hub"), () => null!);
+
+    private static MergeResultDto Merged() => new("merged", System.Array.Empty<string>(), null);
+    private static MergeResultDto Conflict() => new("conflict", new[] { "f.cs" }, null);
+    private static MergeResultDto Blocked() => new("blocked", System.Array.Empty<string>(), "blocked");
+
+    [Fact]
+    public async System.Threading.Tasks.Task MergeSelected_only_processes_checked_active_rows()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a"); a.IsChecked = true;
+        var b = ActiveRow("b"); b.IsChecked = false;          // unchecked -> skipped
+        var c = ActiveRow("c"); c.IsChecked = true; c.State = WorktreeState.Merged; // not active -> skipped
+        vm.Rows.Add(a); vm.Rows.Add(b); vm.Rows.Add(c);
+        vm.SelectedTarget = "main";
+
+        var seen = new System.Collections.Generic.List<string>();
+        await vm.MergeSelectedAsync((id, target, remove, msg) =>
+        {
+            seen.Add(id);
+            Assert.Equal("main", target);
+            Assert.False(remove);                              // removeWorktree must be false
+            return System.Threading.Tasks.Task.FromResult(Merged());
+        });
+
+        Assert.Equal(new[] { "a" }, seen);
+        Assert.Equal(BatchMergeOutcome.Merged, a.MergeOutcome);
+        Assert.False(a.IsChecked);                             // cleared after merge
+    }
+
+    [Fact]
+    public async System.Threading.Tasks.Task MergeSelected_continues_past_conflict_and_collects_it()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a"); a.IsChecked = true;
+        var b = ActiveRow("b"); b.IsChecked = true;
+        var c = ActiveRow("c"); c.IsChecked = true;
+        vm.Rows.Add(a); vm.Rows.Add(b); vm.Rows.Add(c);
+        vm.SelectedTarget = "main";
+
+        await vm.MergeSelectedAsync((id, target, remove, msg) =>
+            System.Threading.Tasks.Task.FromResult(id == "b" ? Conflict() : Merged()));
+
+        Assert.Equal(BatchMergeOutcome.Merged, a.MergeOutcome);
+        Assert.Equal(BatchMergeOutcome.Conflict, b.MergeOutcome);
+        Assert.Equal(BatchMergeOutcome.Merged, c.MergeOutcome);   // continued past the conflict
+        Assert.Contains(b, vm.ConflictRows);
+        Assert.Single(vm.ConflictRows);
+    }
+
+    [Fact]
+    public async System.Threading.Tasks.Task MergeSelected_maps_blocked_and_exception_to_failure_outcomes()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a"); a.IsChecked = true;
+        var b = ActiveRow("b"); b.IsChecked = true;
+        vm.Rows.Add(a); vm.Rows.Add(b);
+        vm.SelectedTarget = "main";
+
+        await vm.MergeSelectedAsync((id, target, remove, msg) => id == "a"
+            ? System.Threading.Tasks.Task.FromResult(Blocked())
+            : throw new System.InvalidOperationException("boom"));
+
+        Assert.Equal(BatchMergeOutcome.Blocked, a.MergeOutcome);
+        Assert.Equal(BatchMergeOutcome.Failed, b.MergeOutcome);
+        Assert.Empty(vm.ConflictRows);
+        Assert.False(vm.IsMerging);
+    }
+
+    [Fact]
+    public async System.Threading.Tasks.Task MergeSelected_noop_when_no_target()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a"); a.IsChecked = true;
+        vm.Rows.Add(a);
+        vm.SelectedTarget = null;
+
+        var called = false;
+        await vm.MergeSelectedAsync((id, t, r, m) => { called = true; return System.Threading.Tasks.Task.FromResult(Merged()); });
+
+        Assert.False(called);
+        Assert.Equal(BatchMergeOutcome.None, a.MergeOutcome);
+    }
+```
+
+- [ ] **Step 2: Run tests to verify they fail**
+
+Run: `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release --filter WorktreesOverviewBatchMergeTests`
+Expected: FAIL — `MergeSelectedAsync`, `ConflictRows`, `IsMerging`, `SelectedTarget` do not exist (compile error).
+
+- [ ] **Step 3: Implement the orchestration + cockpit fields**
+
+In `WorktreesOverviewModalViewModel.cs`, add these `using`s if missing: `using ClaudeDo.Ui.Services;` (already present). Add fields/properties to `WorktreesOverviewModalViewModel` (after the existing `_selectedRow` field):
+
+```csharp
+    [ObservableProperty][NotifyCanExecuteChangedFor(nameof(MergeAllCommand))] private string? _selectedTarget;
+    [ObservableProperty][NotifyCanExecuteChangedFor(nameof(MergeAllCommand))] private int _selectedCount;
+    [ObservableProperty][NotifyCanExecuteChangedFor(nameof(MergeAllCommand))] private bool _isMerging;
+    [ObservableProperty] private string? _batchProgress;
+
+    public ObservableCollection<string> MergeTargets { get; } = new();
+    public ObservableCollection<WorktreeOverviewRowViewModel> ConflictRows { get; } = new();
+
+    /// Inert seam wired by the integrator to Layer C's resolver at merge time. (taskId, targetBranch)
+    public Func<string, string, Task>? RequestConflictResolution { get; set; }
+```
+
+Add a helper to enumerate rows regardless of grouped/flat mode, plus the orchestration method:
+
+```csharp
+    public IEnumerable<WorktreeOverviewRowViewModel> AllRows =>
+        IsGlobal ? Groups.SelectMany(g => g.Rows) : Rows;
+
+    public async Task MergeSelectedAsync(
+        Func<string, string, bool, string, Task<MergeResultDto>> mergeFn,
+        CancellationToken ct = default)
+    {
+        var target = SelectedTarget;
+        if (string.IsNullOrWhiteSpace(target)) return;
+
+        var selected = AllRows.Where(r => r.IsChecked && r.IsActive).ToList();
+        if (selected.Count == 0) return;
+
+        IsMerging = true;
+        ConflictRows.Clear();
+        var done = 0;
+        try
+        {
+            foreach (var row in selected)
+            {
+                ct.ThrowIfCancellationRequested();
+                row.MergeOutcome = BatchMergeOutcome.Merging;
+                BatchProgress = Loc.T("vm.worktreesOverview.batchProgress", ++done, selected.Count);
+
+                MergeResultDto result;
+                try
+                {
+                    result = await mergeFn(row.TaskId, target!, false,
+                        Loc.T("vm.merge.commitMessage", row.TaskTitle));
+                }
+                catch
+                {
+                    row.MergeOutcome = BatchMergeOutcome.Failed;
+                    continue;
+                }
+
+                switch (result.Status)
+                {
+                    case "merged":
+                        row.MergeOutcome = BatchMergeOutcome.Merged;
+                        row.State = WorktreeState.Merged;
+                        row.IsChecked = false;
+                        break;
+                    case "conflict":
+                        row.MergeOutcome = BatchMergeOutcome.Conflict;
+                        ConflictRows.Add(row);
+                        break;
+                    case "blocked":
+                        row.MergeOutcome = BatchMergeOutcome.Blocked;
+                        break;
+                    default:
+                        row.MergeOutcome = BatchMergeOutcome.Failed;
+                        break;
+                }
+            }
+            BatchProgress = Loc.T("vm.worktreesOverview.batchDone",
+                selected.Count(r => r.MergeOutcome == BatchMergeOutcome.Merged), ConflictRows.Count);
+        }
+        finally
+        {
+            IsMerging = false;
+        }
+    }
+```
+
+> Note: `Loc.T` keys are added in Task 5; they resolve to the key name (harmless) until then, so tests pass now.
+
+- [ ] **Step 4: Run tests to verify they pass**
+
+Run: `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release --filter WorktreesOverviewBatchMergeTests`
+Expected: PASS (5 tests).
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/ClaudeDo.Ui/ViewModels/Modals/WorktreesOverviewModalViewModel.cs tests/ClaudeDo.Ui.Tests/ViewModels/WorktreesOverviewBatchMergeTests.cs
+git commit -m "feat(ui): add skip-and-continue batch merge orchestration"
+```
+
+---
+
+## Task 3: Selection tracking, target loading, commands + resolve seam
+
+**Files:**
+- Modify: `src/ClaudeDo.Ui/ViewModels/Modals/WorktreesOverviewModalViewModel.cs`
+- Test: `tests/ClaudeDo.Ui.Tests/ViewModels/WorktreesOverviewBatchMergeTests.cs`
+
+- [ ] **Step 1: Write the failing tests**
+
+Append to `WorktreesOverviewBatchMergeTests.cs`:
+
+```csharp
+    [Fact]
+    public void SelectedCount_tracks_checked_active_rows()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a");
+        var b = ActiveRow("b");
+        var merged = ActiveRow("c"); merged.State = WorktreeState.Merged;
+        vm.AddRowForTest(a); vm.AddRowForTest(b); vm.AddRowForTest(merged);
+
+        Assert.Equal(0, vm.SelectedCount);
+        a.IsChecked = true;
+        Assert.Equal(1, vm.SelectedCount);
+        b.IsChecked = true;
+        merged.IsChecked = true;                 // not active -> not counted
+        Assert.Equal(2, vm.SelectedCount);
+        a.IsChecked = false;
+        Assert.Equal(1, vm.SelectedCount);
+    }
+
+    [Fact]
+    public void ResolveConflict_invokes_seam_with_task_and_target()
+    {
+        var vm = NewVm();
+        vm.SelectedTarget = "release";
+        var row = ActiveRow("x"); row.MergeOutcome = BatchMergeOutcome.Conflict;
+
+        (string Task, string Target)? captured = null;
+        vm.RequestConflictResolution = (taskId, target) => { captured = (taskId, target); return System.Threading.Tasks.Task.CompletedTask; };
+
+        vm.ResolveConflictCommand.Execute(row);
+
+        Assert.Equal(("x", "release"), captured);
+    }
+
+    [Fact]
+    public void MergeAll_canExecute_requires_target_selection_and_idle()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a");
+        vm.AddRowForTest(a);
+
+        Assert.False(vm.MergeAllCommand.CanExecute(null));   // no selection, no target
+        a.IsChecked = true;
+        Assert.False(vm.MergeAllCommand.CanExecute(null));   // still no target
+        vm.SelectedTarget = "main";
+        Assert.True(vm.MergeAllCommand.CanExecute(null));
+        vm.IsMerging = true;
+        Assert.False(vm.MergeAllCommand.CanExecute(null));   // busy
+    }
+```
+
+- [ ] **Step 2: Run tests to verify they fail**
+
+Run: `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release --filter WorktreesOverviewBatchMergeTests`
+Expected: FAIL — `AddRowForTest`, `ResolveConflictCommand`, `MergeAllCommand` do not exist (compile error).
+
+- [ ] **Step 3: Implement subscription, commands, target loading**
+
+In `WorktreesOverviewModalViewModel.cs`:
+
+(a) Add a row-hook that recomputes `SelectedCount` when a row's `IsChecked` changes, and a test seam to add a hooked row. Add these methods to the class:
+
+```csharp
+    private void HookRow(WorktreeOverviewRowViewModel row)
+    {
+        row.PropertyChanged += (_, e) =>
+        {
+            if (e.PropertyName is nameof(WorktreeOverviewRowViewModel.IsChecked)
+                               or nameof(WorktreeOverviewRowViewModel.State))
+                RecomputeSelected();
+        };
+    }
+
+    private void RecomputeSelected() =>
+        SelectedCount = AllRows.Count(r => r.IsChecked && r.IsActive);
+
+    // Test seam: adds a row to the flat list with selection tracking wired up.
+    internal void AddRowForTest(WorktreeOverviewRowViewModel row)
+    {
+        HookRow(row);
+        Rows.Add(row);
+    }
+```
+
+(b) In `LoadAsync`, call `HookRow(row)` everywhere a row is added. Replace the two add sites:
+
+In the grouped branch, change `foreach (var row in grp) group.Rows.Add(row);` to:
+
+```csharp
+                    foreach (var row in grp) { HookRow(row); group.Rows.Add(row); }
+```
+
+In the flat branch, change `foreach (var row in ordered) Rows.Add(row);` to:
+
+```csharp
+                foreach (var row in ordered) { HookRow(row); Rows.Add(row); }
+```
+
+Also, at the start of `LoadAsync` after `IsBusy = true;`, reset batch UI state and (re)load merge targets at the end of the `try`:
+
+After `Rows.Clear(); Groups.Clear();` add:
+
+```csharp
+            ConflictRows.Clear();
+            SelectedCount = 0;
+            BatchProgress = null;
+```
+
+At the very end of the `try` block (after the if/else that fills rows/groups) add:
+
+```csharp
+            await LoadMergeTargetsAsync();
+```
+
+(c) Add target loading. The branch list is repo-level, so query it from the first active row:
+
+```csharp
+    private async Task LoadMergeTargetsAsync()
+    {
+        var anchor = AllRows.FirstOrDefault(r => r.IsActive);
+        if (anchor is null) { MergeTargets.Clear(); SelectedTarget = null; return; }
+        try
+        {
+            var targets = await _worker.GetMergeTargetsAsync(anchor.TaskId);
+            MergeTargets.Clear();
+            if (targets is null) { SelectedTarget = null; return; }
+            foreach (var b in targets.LocalBranches) MergeTargets.Add(b);
+            SelectedTarget = MergeTargets.Contains(targets.DefaultBranch)
+                ? targets.DefaultBranch
+                : MergeTargets.FirstOrDefault();
+        }
+        catch { MergeTargets.Clear(); SelectedTarget = null; }
+    }
+```
+
+(d) Add the commands:
+
+```csharp
+    private bool CanMergeAll() => !IsMerging && SelectedCount > 0 && !string.IsNullOrWhiteSpace(SelectedTarget);
+
+    [RelayCommand(CanExecute = nameof(CanMergeAll))]
+    private Task MergeAll() => MergeSelectedAsync(_worker.MergeTaskAsync);
+
+    [RelayCommand]
+    private void ResolveConflict(WorktreeOverviewRowViewModel? row)
+    {
+        if (row is null) return;
+        RequestConflictResolution?.Invoke(row.TaskId, SelectedTarget ?? "");
+    }
+
+    [RelayCommand]
+    private void ToggleSelectAll()
+    {
+        var actives = AllRows.Where(r => r.IsActive).ToList();
+        var allChecked = actives.Count > 0 && actives.All(r => r.IsChecked);
+        foreach (var r in actives) r.IsChecked = !allChecked;
+    }
+```
+
+- [ ] **Step 4: Run tests to verify they pass**
+
+Run: `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release --filter WorktreesOverviewBatchMergeTests`
+Expected: PASS (8 tests total in this file).
+
+- [ ] **Step 5: Build the app project to confirm the VM compiles against generated commands**
+
+Run: `dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release`
+Expected: Build succeeded.
+
+- [ ] **Step 6: Commit**
+
+```bash
+git add src/ClaudeDo.Ui/ViewModels/Modals/WorktreesOverviewModalViewModel.cs tests/ClaudeDo.Ui.Tests/ViewModels/WorktreesOverviewBatchMergeTests.cs
+git commit -m "feat(ui): wire batch selection, target loading and resolve seam"
+```
+
+---
+
+## Task 4: Cockpit view — checkboxes, target picker, Merge all, conflicts panel
+
+**Files:**
+- Modify: `src/ClaudeDo.Ui/Views/Modals/WorktreesOverviewModalView.axaml`
+
+This task is AXAML only (no logic) → no new unit test; flag for visual verification.
+
+- [ ] **Step 1: Add the batch toolbar controls**
+
+In `WorktreesOverviewModalView.axaml`, replace the toolbar `StackPanel` (currently containing Refresh, Cleanup finished, StatusMessage) with one that adds select-all, the target picker, the Merge-all button and progress text. Replace the inner `<StackPanel Orientation="Horizontal" Spacing="8">...</StackPanel>` of the toolbar `Border` with:
+
+```xml
+        <StackPanel Orientation="Horizontal" Spacing="8">
+          <Button Classes="btn" Content="{loc:Tr modals.worktreesOverview.refresh}" Command="{Binding RefreshCommand}" IsEnabled="{Binding !IsBusy}"/>
+          <Button Classes="btn" Content="{loc:Tr modals.worktreesOverview.cleanupFinished}" Command="{Binding CleanupFinishedCommand}" IsEnabled="{Binding !IsBusy}"/>
+          <Button Classes="btn" Content="{loc:Tr modals.worktreesOverview.selectAll}" Command="{Binding ToggleSelectAllCommand}"/>
+          <Border Width="1" Background="{DynamicResource LineBrush}" Margin="4,2"/>
+          <TextBlock Text="{loc:Tr modals.worktreesOverview.targetLabel}" VerticalAlignment="Center" Foreground="{DynamicResource TextDimBrush}"/>
+          <ComboBox MinWidth="160"
+                    ItemsSource="{Binding MergeTargets}"
+                    SelectedItem="{Binding SelectedTarget, Mode=TwoWay}"/>
+          <Button Classes="btn accent"
+                  Content="{loc:Tr modals.worktreesOverview.mergeAll}"
+                  Command="{Binding MergeAllCommand}"/>
+          <TextBlock Text="{Binding SelectedCount, StringFormat='{}{0} selected'}"
+                     VerticalAlignment="Center" Foreground="{DynamicResource TextDimBrush}"/>
+          <TextBlock Text="{Binding BatchProgress}" VerticalAlignment="Center" Margin="8,0,0,0"
+                     Foreground="{DynamicResource TextDimBrush}"/>
+          <TextBlock Text="{Binding StatusMessage}" VerticalAlignment="Center" Margin="8,0,0,0"
+                     Foreground="{DynamicResource TextDimBrush}"/>
+        </StackPanel>
+```
+
+- [ ] **Step 2: Add a checkbox + outcome badge to the row template**
+
+In the `WorktreeRowTemplate` `DataTemplate`, change the row `Grid` to add a leading checkbox column and a trailing outcome column. Replace the `<Grid ColumnDefinitions="*,90,80,80">...</Grid>` (the whole grid, lines for Task/State/Diff/Age) with:
+
+```xml
+        <Grid ColumnDefinitions="Auto,*,90,90,80,80">
+          <CheckBox Grid.Column="0" VerticalAlignment="Center" Margin="0,0,8,0"
+                    IsChecked="{Binding IsChecked, Mode=TwoWay}"
+                    IsEnabled="{Binding IsActive}"
+                    IsVisible="{Binding IsActive}"/>
+          <StackPanel Grid.Column="1" Orientation="Vertical" Spacing="2">
+            <TextBlock Classes="title" Text="{Binding TaskTitle}"/>
+            <StackPanel Orientation="Horizontal" Spacing="4">
+              <TextBlock Classes="meta" Text="{Binding TaskStatus}"/>
+              <TextBlock Classes="meta" Text="•"
+                         IsVisible="{Binding !PathExistsOnDisk}"/>
+              <TextBlock Classes="meta" Text="{loc:Tr modals.worktreesOverview.phantom}" Foreground="{DynamicResource StatusErrorBrush}"
+                         IsVisible="{Binding !PathExistsOnDisk}"
+                         ToolTip.Tip="{loc:Tr modals.worktreesOverview.phantomTooltip}"/>
+            </StackPanel>
+          </StackPanel>
+          <TextBlock Grid.Column="2" Classes="meta" VerticalAlignment="Center"
+                     Text="{Binding MergeOutcome}"
+                     IsVisible="{Binding HasOutcome}"/>
+          <Border Grid.Column="3" CornerRadius="3" Padding="6,2" VerticalAlignment="Center"
+                  Background="{Binding State, Converter={StaticResource WorktreeStateColor}}">
+            <TextBlock Classes="meta" Text="{Binding State}" Foreground="{DynamicResource TextBrush}"
+                       HorizontalAlignment="Center"/>
+          </Border>
+          <TextBlock Grid.Column="4" Classes="meta" Text="{Binding DiffStat}" VerticalAlignment="Center"/>
+          <TextBlock Grid.Column="5" Classes="meta" Text="{Binding AgeText}" VerticalAlignment="Center"/>
+        </Grid>
+```
+
+Then update the column-header `Grid` (the one with `ColumnDefinitions="*,90,80,80"` near the ScrollViewer top) to match the new column layout:
+
+```xml
+          <Grid ColumnDefinitions="Auto,*,90,90,80,80" Margin="12,0,12,4">
+            <TextBlock Grid.Column="1" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnTask}"/>
+            <TextBlock Grid.Column="2" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnOutcome}"/>
+            <TextBlock Grid.Column="3" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnState}"/>
+            <TextBlock Grid.Column="4" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnDiff}"/>
+            <TextBlock Grid.Column="5" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnAge}"/>
+          </Grid>
+```
+
+- [ ] **Step 3: Add the "Needs resolution" panel**
+
+Inside the content `ScrollViewer`'s root `StackPanel`, at the very top (before the column-header `Grid`), add a conflicts panel that only shows when there are conflicts:
+
+```xml
+          <Border IsVisible="{Binding ConflictRows.Count}"
+                  Background="{DynamicResource ErrorTintBrush}"
+                  BorderBrush="{DynamicResource StatusErrorBrush}"
+                  BorderThickness="1" CornerRadius="6" Padding="12,8" Margin="0,0,0,12">
+            <StackPanel Spacing="6">
+              <TextBlock Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.needsResolution}"/>
+              <ItemsControl ItemsSource="{Binding ConflictRows}">
+                <ItemsControl.ItemTemplate>
+                  <DataTemplate x:DataType="vm:WorktreeOverviewRowViewModel">
+                    <Grid ColumnDefinitions="*,Auto" Margin="0,2">
+                      <TextBlock Grid.Column="0" Classes="meta" VerticalAlignment="Center"
+                                 Text="{Binding TaskTitle}"/>
+                      <Button Grid.Column="1" Classes="btn"
+                              Content="{loc:Tr modals.worktreesOverview.resolve}"
+                              Command="{Binding $parent[Window].((vm:WorktreesOverviewModalViewModel)DataContext).ResolveConflictCommand}"
+                              CommandParameter="{Binding}"/>
+                    </Grid>
+                  </DataTemplate>
+                </ItemsControl.ItemTemplate>
+              </ItemsControl>
+            </StackPanel>
+          </Border>
+```
+
+> `IsVisible="{Binding ConflictRows.Count}"` uses Avalonia's int→bool coercion (0 = false). If the build flags this, change to a value converter already present, but int→bool is supported.
+
+- [ ] **Step 4: Build the app to verify the AXAML compiles**
+
+Run: `dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release`
+Expected: Build succeeded (compiled bindings resolve against the new VM members).
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/ClaudeDo.Ui/Views/Modals/WorktreesOverviewModalView.axaml
+git commit -m "feat(ui): batch-merge cockpit view with checkboxes and conflicts panel"
+```
+
+---
+
+## Task 5: Localization keys (en + de parity)
+
+**Files:**
+- Modify: `src/ClaudeDo.Localization/locales/en.json`
+- Modify: `src/ClaudeDo.Localization/locales/de.json`
+
+- [ ] **Step 1: Add the new keys to `en.json`**
+
+Under `modals.worktreesOverview`, add:
+
+```json
+      "columnOutcome": "RESULT",
+      "selectAll": "Select all",
+      "targetLabel": "Target",
+      "mergeAll": "Merge all",
+      "needsResolution": "NEEDS RESOLUTION",
+      "resolve": "Resolve"
+```
+
+Under `vm.worktreesOverview`, add:
+
+```json
+      "batchProgress": "Merging {0}/{1}…",
+      "batchDone": "Merged {0}, {1} need resolution."
+```
+
+- [ ] **Step 2: Add the matching keys to `de.json`**
+
+Under `modals.worktreesOverview`:
+
+```json
+      "columnOutcome": "ERGEBNIS",
+      "selectAll": "Alle auswählen",
+      "targetLabel": "Ziel",
+      "mergeAll": "Alle mergen",
+      "needsResolution": "ZU LÖSEN",
+      "resolve": "Lösen"
+```
+
+Under `vm.worktreesOverview`:
+
+```json
+      "batchProgress": "Merge {0}/{1}…",
+      "batchDone": "{0} gemergt, {1} zu lösen."
+```
+
+- [ ] **Step 3: Run the localization parity test**
+
+Run: `dotnet test tests/ClaudeDo.Localization.Tests/ClaudeDo.Localization.Tests.csproj -c Release`
+Expected: PASS (en/de key parity holds).
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add src/ClaudeDo.Localization/locales/en.json src/ClaudeDo.Localization/locales/de.json
+git commit -m "feat(i18n): add batch-merge cockpit strings (en/de)"
+```
+
+---
+
+## Task 6: Migrate `WorktreeModalView` diff onto `DiffLinesView`
+
+**Files:**
+- Modify: `src/ClaudeDo.Ui/ViewModels/Modals/WorktreeModalViewModel.cs`
+- Modify: `src/ClaudeDo.Ui/Views/Modals/WorktreeModalView.axaml`
+
+- [ ] **Step 1: Switch the VM to the canonical diff model**
+
+In `WorktreeModalViewModel.cs`:
+
+(a) Delete the now-dead types at the top of the file:
+
+```csharp
+public enum WorktreeDiffLineKind { Header, Hunk, Added, Removed, Context }
+
+public sealed partial class WorktreeDiffLineViewModel : ViewModelBase
+{
+    public required string Text { get; init; }
+    public required WorktreeDiffLineKind Kind { get; init; }
+}
+```
+
+(b) Change the collection declaration from:
+
+```csharp
+    public ObservableCollection<WorktreeDiffLineViewModel> SelectedFileDiffLines { get; } = new();
+```
+
+to:
+
+```csharp
+    public ObservableCollection<DiffLineViewModel> SelectedFileDiffLines { get; } = new();
+```
+
+(c) Replace the body of `LoadFileDiffAsync` (the `foreach (var line in diff.Split('\n'))` block) so it parses via `UnifiedDiffParser`. The method becomes:
+
+```csharp
+    private async Task LoadFileDiffAsync(WorktreeNodeViewModel? node)
+    {
+        SelectedFileDiffLines.Clear();
+
+        if (node is null || node.IsDirectory || string.IsNullOrEmpty(node.RelativePath))
+            return;
+
+        string diff;
+        try
+        {
+            diff = await _git.GetFileDiffAsync(WorktreePath, BaseCommit, node.RelativePath);
+        }
+        catch
+        {
+            return;
+        }
+
+        foreach (var line in UnifiedDiffParser.Flatten(UnifiedDiffParser.Parse(diff)))
+            SelectedFileDiffLines.Add(line);
+    }
+```
+
+(`DiffLineViewModel`, `DiffFileViewModel`, and `UnifiedDiffParser` are all in the same `ClaudeDo.Ui.ViewModels.Modals` namespace, so no new `using` is required.)
+
+- [ ] **Step 2: Build to confirm the VM compiles and nothing else referenced the deleted types**
+
+Run: `dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release`
+Expected: Build succeeded. (If a compile error names `WorktreeDiffLineViewModel`/`WorktreeDiffLineKind` outside this file or the view, that reference must be migrated too — there should be none besides `WorktreeModalView.axaml`, handled next.)
+
+- [ ] **Step 3: Swap the view's inline diff for `DiffLinesView`**
+
+In `WorktreeModalView.axaml`:
+
+(a) Remove the now-unused converter resource. Delete:
+
+```xml
+  <Window.Resources>
+    <converters:DiffLineKindToBrushConverter x:Key="DiffLineKindToBrush"/>
+  </Window.Resources>
+```
+
+(b) Replace the right-pane `ScrollViewer`'s `ItemsControl` (the `SelectableTextBlock` template bound to `SelectedFileDiffLines`) with the canonical control. Replace:
+
+```xml
+          <ItemsControl ItemsSource="{Binding SelectedFileDiffLines}">
+            <ItemsControl.ItemTemplate>
+              <DataTemplate DataType="vm:WorktreeDiffLineViewModel">
+                <SelectableTextBlock Text="{Binding Text}"
+                                     FontFamily="{DynamicResource MonoFont}"
+                                     FontSize="{StaticResource FontSizeMono}"
+                                     Foreground="{Binding Kind, Converter={StaticResource DiffLineKindToBrush}}"
+                                     TextWrapping="NoWrap"/>
+              </DataTemplate>
+            </ItemsControl.ItemTemplate>
+          </ItemsControl>
+```
+
+with:
+
+```xml
+          <ctl:DiffLinesView Lines="{Binding SelectedFileDiffLines}"/>
+```
+
+(The `xmlns:ctl="using:ClaudeDo.Ui.Views.Controls"` namespace is already declared at the top of this file.)
+
+- [ ] **Step 4: Build the app to verify the AXAML compiles**
+
+Run: `dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release`
+Expected: Build succeeded.
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/ClaudeDo.Ui/ViewModels/Modals/WorktreeModalViewModel.cs src/ClaudeDo.Ui/Views/Modals/WorktreeModalView.axaml
+git commit -m "refactor(ui): render worktree modal diff via canonical DiffLinesView"
+```
+
+---
+
+## Task 7: Full build + test sweep
+
+**Files:** none (verification only).
+
+- [ ] **Step 1: Build the whole app**
+
+Run: `dotnet build src/ClaudeDo.App/ClaudeDo.App.csproj -c Release`
+Expected: Build succeeded, 0 errors.
+
+- [ ] **Step 2: Run the UI + localization test projects**
+
+Run: `dotnet test tests/ClaudeDo.Ui.Tests/ClaudeDo.Ui.Tests.csproj -c Release`
+Then: `dotnet test tests/ClaudeDo.Localization.Tests/ClaudeDo.Localization.Tests.csproj -c Release`
+Expected: PASS (all green, including the 8 new batch-merge tests).
+
+- [ ] **Step 3: Flag visual-verification gaps**
+
+The cockpit toolbar/checkbox/conflicts-panel layout and the migrated `WorktreeModalView` diff rendering are AXAML changes that cannot be verified headlessly. Report to the user that these need a visual pass (run the app, open the worktrees overview, select several worktrees, pick a target, "Merge all", and open a worktree diff).
+
+---
+
+## Self-Review Notes
+
+- **Spec coverage:** batch-merge cockpit (Tasks 1–4), skip-and-continue + conflict collection (Task 2), single target picker (Tasks 3–4), Resolve → `RequestConflictResolution(taskId, targetBranch)` seam left unwired (Tasks 3–4), `WorktreeModalView` diff migration to `DiffLinesView` (Task 6), no worker files touched, no `IWorkerClient` change, locales in parity (Task 5). ✔
+- **No ConflictResolver reference:** the seam is a bare `Func<string,string,Task>?`; no Layer C type is named. ✔
+- **Type consistency:** `BatchMergeOutcome`, `MergeOutcome`, `IsConflict`, `HasOutcome`, `MergeSelectedAsync`, `ConflictRows`, `SelectedTarget`, `SelectedCount`, `IsMerging`, `BatchProgress`, `RequestConflictResolution`, `MergeAllCommand`, `ResolveConflictCommand`, `ToggleSelectAllCommand`, `AddRowForTest`, `AllRows` are used consistently across tasks. ✔

docs/superpowers/plans/2026-06-09-unify-parent-task-model-plan.md

@@ -0,0 +1,90 @@
+# Plan — Unify the parent-task model
+
+Spec: `docs/superpowers/specs/2026-06-09-unify-parent-task-model-design.md`
+
+Subagents: `sonnet`. Stage files explicitly by path (never `git add -A`). TDD.
+Build with `-c Release` per project. Commit per task (Conventional Commits).
+
+## Task 1 — Single parent-advance path
+
+- Rename `TaskStateService.TryAdvanceImprovementParentAsync` → `TryAdvanceParentAsync`.
+- Make it advance **any** `WaitingForChildren` parent → `WaitingForReview` when all
+  children are terminal, and advance a parent with **zero** children straight to
+  `WaitingForReview`.
+- In `OnChildTerminalAsync`: drop the `TryCompleteParentAsync` call; keep
+  `_chain.OnChildFinishedAsync`; call the renamed advance method for all parents.
+- Tests: extend `WaitingForChildrenLifecycleTests` — (a) improvement parent still
+  advances; (b) a `WaitingForChildren` parent whose children are a *sequential chain*
+  advances only after the last one is terminal; (c) zero-children parent advances.
+
+## Task 2 — Delete `TryCompleteParentAsync`
+
+- Remove `TaskRepository.TryCompleteParentAsync` (`TaskRepository.cs:477-502`) and
+  any remaining references.
+- Update `src/ClaudeDo.Data/CLAUDE.md` (drop it from the TaskRepository helper list).
+- Build Data + Worker; fix references.
+
+## Task 3 — Planning finalize enters `WaitingForChildren`
+
+- `TaskStateService.FinalizePlanningAsync`: in the same `ExecuteUpdateAsync`, set
+  `Status = WaitingForChildren` alongside `PlanningPhase = Finalized` /
+  `PlanningFinalizedAt`.
+- Verify `PlanningSessionManager.FinalizeAsync` ordering: finalize (→ WaitingForChildren)
+  **before** `SetupChainAsync` enqueues child[0]. Adjust only if ordering is wrong.
+- Tests: finalizing a planning parent with N children leaves it `WaitingForChildren`;
+  after the chain completes it is `WaitingForReview` (not `Done`); a planning parent
+  with zero finalized children lands in `WaitingForReview`.
+
+## Task 4 — Approve merges the whole unit
+
+**Decision: full UX consolidation.** Approve becomes the single entry for reviewing
+*and* merging any task; the separate planning-merge views are folded into the review
+panel. The `PlanningMergeOrchestrator` (which already merges the unit + sets the
+parent `Done` for both planning and improvement, with conflict continue/abort) is
+reused as the engine; only its *entry/UI* moves.
+
+Backend:
+- `WorkerHub.ApproveReview`: for a parent that **has children**, drive
+  `PlanningMergeOrchestrator.StartAsync` (event-based: `PlanningMergeStarted` /
+  `PlanningSubtaskMerged` / `PlanningMergeConflict` / `PlanningMergeAborted` /
+  `PlanningCompleted`) instead of the one-shot `ApproveAndMergeAsync`. Childless tasks
+  keep `ApproveAndMergeAsync`. Conflict resolution still goes through
+  `ContinuePlanningMerge` / `AbortPlanningMerge`.
+- Keep the orchestrator, `ContinuePlanningMerge`, `AbortPlanningMerge`,
+  `GetPlanningAggregate`, `BuildPlanningIntegrationBranch`. Remove the now-redundant
+  standalone `MergeAllPlanning` hub method (approve is the entry).
+- (Optional cleanup) route the orchestrator's `FinalizeParentDoneAsync` through
+  `TaskStateService` so `Status` writes stay centralized; low priority.
+
+UI (Avalonia, MVVM — visual-verification gaps, flag for user):
+- The review panel (`DetailsIslandViewModel` / its view) is the single approve+merge
+  surface. For a child-bearing parent in `WaitingForReview`, approve shows the
+  unit-merge progress + per-subtask state, the aggregate/integration diff preview, and
+  conflict continue/abort — all inline in the review panel.
+- Remove the separate planning-merge view(s)/commands and the standalone "Merge all"
+  button; re-wire their `PlanningMerge*` event handlers into the review panel VM.
+- Sync `IWorkerClient` + hand-rolled test fakes in both UI/Worker test projects.
+
+Tests: approving a parent with two `Done` children merges both then sets `Done`; a
+conflicting second child surfaces the conflict and pauses (continue/abort) without
+losing the parent's `WaitingForReview`/merge state.
+
+## Task 5 — Cancellable `WaitingForChildren` parent
+
+- Add `TaskStatus.WaitingForChildren` to the `CancelAsync` guard.
+- Test: a parent in `WaitingForChildren` can be cancelled.
+
+## Task 6 — Docs
+
+- `src/ClaudeDo.Worker/CLAUDE.md`: add `WaitingForChildren` to the Status table +
+  transition diagram; document the unified parent flow and approve-merges-unit;
+  remove `MergeAllPlanning` from the Hub method list.
+- `src/ClaudeDo.Data/CLAUDE.md`: add `WaitingForChildren` to the TaskEntity status list.
+- Root `CLAUDE.md`: update the "Task status flow" convention line.
+
+## Verify
+
+- `dotnet test` for Worker.Tests + Data.Tests (`-c Release`).
+- UI flows (planning finalize → review → approve-merge; improvement parent;
+  retired MergeAllPlanning button) are **visual-verification gaps** — flag for the
+  user to run the app; do not claim they work from tests alone.

docs/superpowers/specs/2026-06-09-unify-parent-task-model-design.md

@@ -0,0 +1,148 @@
+# Unify the parent-task model (planning · improvement · normal)
+
+**Date:** 2026-06-09
+**Status:** Approved-pending-implementation
+
+## Problem
+
+ClaudeDo has three ways a task produces and waits on work, grown as separate
+mechanisms that represent the *same shape* — "a task runs, may emit children,
+and once it + its children are terminal it surfaces for review":
+
+| | children authored | scheduling | parent flow today | merge of children |
+|---|---|---|---|---|
+| **Normal** | none | — | `Running → WaitingForReview → Done` | own worktree on approve |
+| **Improvement** | autonomously *during* run (`suggest_improvement`) | parallel (no blockers) | `Running → WaitingForChildren → WaitingForReview → Done` | separate `MergeAllPlanning` |
+| **Planning** | interactively *before* run (planning session) | sequential chain (`BlockedByTaskId`) | `Idle →(Active→Finalized)→ Done` (skips review) | separate `MergeAllPlanning` |
+
+The incidental divergence we want to remove:
+
+1. **Two "parent is waiting on children" representations** — improvement uses
+   `Status=WaitingForChildren`; planning uses `PlanningPhase=Finalized` with the
+   parent's `Status` jumping `Idle → Done`, never passing through the waiting/review
+   states at all.
+2. **Two parent-advance methods** doing the same job —
+   `TaskRepository.TryCompleteParentAsync` (planning → `Done`, no review) vs
+   `TaskStateService.TryAdvanceImprovementParentAsync` (improvement → `WaitingForReview`).
+3. **A separate merge action** — `MergeAllPlanning` / `PlanningMergeOrchestrator`
+   merges children, decoupled from the parent's `approve`. Approving a parent and
+   merging its unit are two clicks.
+
+What is **genuinely unique and kept**: `PlanningPhase.Active` — the interactive,
+human-in-the-loop authoring gate where children are drafted and cannot run until
+finalize. Improvement has no equivalent. The two *authoring* entry points
+(`PlanningMcpService.CreateChildTask` vs `TaskRunMcpService.SuggestImprovement`)
+also stay distinct — they already share `CreateChildAsync`; unifying the authoring
+UX is explicitly out of scope.
+
+## Decisions (locked)
+
+- **All parents get review.** A planning parent now surfaces in `WaitingForReview`
+  after its children finish, instead of auto-completing to `Done`.
+- **Approve merges the whole unit — full UX consolidation.** Approve is the single
+  entry for reviewing *and* merging any task. For a parent with children it drives the
+  existing `PlanningMergeOrchestrator` (unit merge + parent→`Done` + conflict
+  continue/abort, all already implemented); the standalone "Merge All" button is
+  removed and the orchestrator's conflict dialog + combined-diff preview are reused
+  in-place. Childless tasks keep `ApproveAndMergeAsync`.
+- **Scope = state model + code paths.** Internal refactor; authoring UX and child
+  base-commit resolution are unchanged.
+
+## Target model
+
+**One parent-with-children lifecycle, used by every parent regardless of how its
+children were authored:**
+
+```
+                          ┌─ (no children) ──────────────┐
+Idle → Queued → Running ──┤                              ├→ WaitingForReview → Done
+                          └─ (has/spawns children) ─┐    │      (approve =
+                                                    │    │       merge unit)
+                                WaitingForChildren ─┘    │
+                                       │                 │
+                          (all children terminal) ───────┘
+```
+
+Planning parent (never runs as an agent — it runs an interactive session):
+
+```
+Idle (PlanningPhase None)
+  →[StartPlanning]      Idle (PlanningPhase Active)        ← authoring gate (KEPT)
+  →[FinalizePlanning]   WaitingForChildren (Finalized)     ← children chain runs
+  →[all children terminal]  WaitingForReview
+  →[approve]            merge unit → Done
+```
+
+Children (planning **and** improvement) keep going straight to `Done` with no
+individual review; they accumulate on their branches and merge as a unit when the
+parent is approved.
+
+### State machine after the change
+
+- `WaitingForChildren` is the **single** "parent waiting on children" state, used by
+  both planning and improvement parents.
+- `WaitingForReview` is reached by every parent before `Done`.
+- `PlanningPhase`: `None | Active | Finalized` — unchanged; `Active` remains the
+  authoring gate, `Finalized` marks "was a planning parent" and is set together with
+  `Status=WaitingForChildren`.
+
+## Code changes
+
+1. **Single parent-advance path.** Rename
+   `TaskStateService.TryAdvanceImprovementParentAsync` →
+   `TryAdvanceParentAsync`; it already only checks `Status==WaitingForChildren` +
+   "all children terminal" → `WaitingForReview` (with the failed/cancelled
+   annotation on `Result`). It becomes the only path for both systems.
+   - Handle **zero children**: a finalized planning parent with no children must go
+     straight to `WaitingForReview` (today `TryComplete`/`TryAdvance` both `return`
+     on `Count == 0`).
+
+2. **Delete `TaskRepository.TryCompleteParentAsync`** (`TaskRepository.cs:477`) and
+   its invocation in `TaskStateService.OnChildTerminalAsync`. Planning parents now
+   advance via `TryAdvanceParentAsync` to `WaitingForReview` instead of `Done`.
+   - Keep `_chain.OnChildFinishedAsync` (inter-child unblock — planning-only effect).
+
+3. **`FinalizePlanningAsync`** (`TaskStateService.cs:289`) sets the parent
+   `Status = WaitingForChildren` in the same update that sets
+   `PlanningPhase = Finalized`. This happens before `SetupChainAsync` enqueues
+   child[0], so the parent is in `WaitingForChildren` before any child can finish.
+
+4. **Approve merges the unit.** `WorkerHub.ApproveReview` (and the MCP
+   `ReviewTask` approve path): when the approved task has children, run
+   `PlanningMergeOrchestrator` (parent worktree if `Active` + each `Done` child in
+   order), then transition the parent to `Done`. On a child merge conflict, the
+   parent stays in `WaitingForReview` (mirrors current single-task approve-conflict
+   behavior). Retire the `MergeAllPlanning` Hub method + UI button.
+
+5. **Allow cancelling a `WaitingForChildren` parent.** Add `WaitingForChildren` to
+   the `CancelAsync` guard so a parent waiting on children can be cancelled (today it
+   cannot — minor gap).
+
+6. **Docs.** Fix the `WaitingForChildren`-missing drift in
+   `src/ClaudeDo.Data/CLAUDE.md` and `src/ClaudeDo.Worker/CLAUDE.md`, and update the
+   transition diagram + the root `CLAUDE.md` status-flow line to the unified model.
+
+## Out of scope (unchanged)
+
+- Authoring UX: planning session vs `suggest_improvement` stay as two distinct
+  entry points (both already call `CreateChildAsync`).
+- `WorktreeManager.ResolveBaseCommitAsync` base-commit divergence (planning children
+  branch from list HEAD; improvement children from parent head) — left as-is.
+- Sequential-vs-parallel scheduling — already shared infrastructure
+  (`BlockedByTaskId`); planning chains, improvement doesn't. No change.
+
+## Risks / edge cases
+
+- **Ordering on finalize** — parent must be `WaitingForChildren` before the first
+  child can reach terminal. Guaranteed by setting it inside `FinalizePlanningAsync`,
+  which runs before `SetupChainAsync`.
+- **Zero-children planning parent** — must advance to `WaitingForReview`, not stick
+  in `WaitingForChildren`. Explicit branch in `TryAdvanceParentAsync` /
+  `FinalizePlanningAsync`.
+- **Failed/cancelled children** — parent still advances to `WaitingForReview` with
+  the existing `⚠ Children: N failed, M cancelled` annotation; no wedge.
+- **Approve-merge conflict** — keep parent in `WaitingForReview`; surface the
+  conflicting child like the current merge-conflict path.
+- **Existing rows** — planning parents currently sitting at `Idle`+`Finalized` with
+  live children: behavior change is forward-only (new finalizes use the new flow);
+  no migration needed since `Status`/`PlanningPhase` columns already exist.

src/ClaudeDo.App/Program.cs

@@ -132,6 +132,9 @@ sealed class Program
         sc.AddTransient<Func<RepoImportModalViewModel>>(sp => () => sp.GetRequiredService<RepoImportModalViewModel>());
         sc.AddTransient<WeeklyReportModalViewModel>();
         sc.AddTransient<Func<WeeklyReportModalViewModel>>(sp => () => sp.GetRequiredService<WeeklyReportModalViewModel>());
+        sc.AddSingleton<Func<string, ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel>>(sp =>
+            taskId => new ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel(
+                sp.GetRequiredService<WorkerClient>(), taskId));
 
         // Islands shell VMs
         sc.AddSingleton<ListsIslandViewModel>(sp =>
@@ -149,7 +152,13 @@ sealed class Program
                 sp.GetRequiredService<WorkerClient>(),
                 sp,
                 sp.GetRequiredService<INotesApi>()));
-        sc.AddSingleton<IslandsShellViewModel>();
+        sc.AddSingleton<IslandsShellViewModel>(sp =>
+        {
+            var shell = ActivatorUtilities.CreateInstance<IslandsShellViewModel>(sp);
+            shell.ConflictResolverFactory =
+                sp.GetRequiredService<Func<string, ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel>>();
+            return shell;
+        });
 
         return sc.BuildServiceProvider();
     }

src/ClaudeDo.Data/CLAUDE.md

@@ -4,7 +4,7 @@ Shared data layer: models, repositories, SQLite infrastructure, and git operatio
 
 ## Models
 
-- **TaskEntity** — Id, ListId, Title, Description, Status (`Idle|Queued|Running|WaitingForReview|Done|Failed|Cancelled`), PlanningPhase (`None|Active|Finalized` — parent-only), BlockedByTaskId (nullable FK to predecessor in a chain), ScheduledFor, Result, ReviewFeedback (nullable; reviewer's rejection comment, consumed and cleared by the runner on the next re-run), LogPath, timestamps, CommitType, Model / SystemPrompt / AgentPath / MaxTurns (nullable overrides), IsStarred, IsMyDay, Notes, ParentTaskId, PlanningSessionId, PlanningSessionToken, PlanningFinalizedAt, CreatedBy. Legacy values `Manual`/`Planning`/`Planned`/`Draft`/`Waiting` were retired; existing rows backfill automatically via the `RetireLegacyTaskStatus` migration.
+- **TaskEntity** — Id, ListId, Title, Description, Status (`Idle|Queued|Running|WaitingForChildren|WaitingForReview|Done|Failed|Cancelled`), PlanningPhase (`None|Active|Finalized` — parent-only), BlockedByTaskId (nullable FK to predecessor in a chain), ScheduledFor, Result, ReviewFeedback (nullable; reviewer's rejection comment, consumed and cleared by the runner on the next re-run), LogPath, timestamps, CommitType, Model / SystemPrompt / AgentPath / MaxTurns (nullable overrides), IsStarred, IsMyDay, Notes, ParentTaskId, PlanningSessionId, PlanningSessionToken, PlanningFinalizedAt, CreatedBy. Legacy values `Manual`/`Planning`/`Planned`/`Draft`/`Waiting` were retired; existing rows backfill automatically via the `RetireLegacyTaskStatus` migration.
 - **ListEntity** — Id, Name, WorkingDir, DefaultCommitType, CreatedAt
 - **ListConfigEntity** — ListId (PK, 1:1 with list), Model, SystemPrompt, AgentPath, MaxTurns (all nullable)
 - **WorktreeEntity** — TaskId (PK, 1:1 with task), Path, BranchName, BaseCommit, HeadCommit, DiffStat, State (Active|Merged|Discarded|Kept)
@@ -19,7 +19,7 @@ Shared data layer: models, repositories, SQLite infrastructure, and git operatio
 
 All repositories use EF Core LINQ queries via `ClaudeDoDbContext`. The atomic `Queued -> Running` claim lives in the Worker's `QueuePicker` (uses `FromSqlRaw`), not here.
 
-- **TaskRepository** — CRUD, planning helpers (`CreateChildAsync`, `SetPlanningStartedAsync`, `DiscardPlanningAsync`, `TryCompleteParentAsync`, `UpdateChildAsync`), `UpdateAgentSettingsAsync` (model / system-prompt / agent-path overrides). Status-mutation primitives `MarkRunningAsync` / `MarkDoneAsync` / `MarkFailedAsync` / `FlipAllRunningToFailedAsync` are `internal` and called only by `TaskStateService` in the worker. `CreateChildAsync` produces children with `Status=Idle, PlanningPhase=None`; once their parent's `PlanningPhase` becomes `Finalized`, the chain coordinator queues them.
+- **TaskRepository** — CRUD, planning helpers (`CreateChildAsync`, `SetPlanningStartedAsync`, `DiscardPlanningAsync`, `UpdateChildAsync`), `UpdateAgentSettingsAsync` (model / system-prompt / agent-path overrides). Status-mutation primitives `MarkRunningAsync` / `MarkDoneAsync` / `MarkFailedAsync` / `FlipAllRunningToFailedAsync` are `internal` and called only by `TaskStateService` in the worker. `CreateChildAsync` produces children with `Status=Idle, PlanningPhase=None`; once their parent's `PlanningPhase` becomes `Finalized`, the chain coordinator queues them.
 - **ListRepository** — CRUD, `GetConfigAsync` / `SetConfigAsync` (upsert) / `DeleteConfigAsync` for `list_config`
 - **WorktreeRepository** — CRUD, `UpdateHeadAsync`, `SetStateAsync`
 - **TaskRunRepository**, **SubtaskRepository**, **AppSettingsRepository**

src/ClaudeDo.Data/ClaudeDoDbContext.cs

@@ -1,6 +1,8 @@
+using System.Data.Common;
 using ClaudeDo.Data.Models;
 using ClaudeDo.Data.Seeding;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Diagnostics;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
@@ -9,8 +11,35 @@ namespace ClaudeDo.Data;
 
 public class ClaudeDoDbContext : DbContext
 {
+    // Runs PRAGMA foreign_keys=ON on every EF-managed connection open so FK
+    // enforcement is active for all IDbContextFactory-created contexts, not
+    // just the single context used in MigrateAndConfigure.
+    private sealed class SqliteForeignKeyInterceptor : DbConnectionInterceptor
+    {
+        internal static readonly SqliteForeignKeyInterceptor Instance = new();
+
+        public override void ConnectionOpened(DbConnection connection, ConnectionEndEventData eventData)
+            => Apply(connection);
+
+        public override Task ConnectionOpenedAsync(DbConnection connection, ConnectionEndEventData eventData, CancellationToken cancellationToken = default)
+        {
+            Apply(connection);
+            return Task.CompletedTask;
+        }
+
+        private static void Apply(DbConnection connection)
+        {
+            using var cmd = connection.CreateCommand();
+            cmd.CommandText = "PRAGMA foreign_keys=ON;";
+            cmd.ExecuteNonQuery();
+        }
+    }
+
     public ClaudeDoDbContext(DbContextOptions<ClaudeDoDbContext> options) : base(options) { }
 
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        => optionsBuilder.AddInterceptors(SqliteForeignKeyInterceptor.Instance);
+
     public DbSet<TaskEntity> Tasks => Set<TaskEntity>();
     public DbSet<ListEntity> Lists => Set<ListEntity>();
     public DbSet<ListConfigEntity> ListConfigs => Set<ListConfigEntity>();

src/ClaudeDo.Data/Filtering/Filters/ReviewFilter.cs

@@ -7,8 +7,7 @@ public sealed class ReviewFilter : ITaskListFilter
 {
     public string Id => "virtual:review";
     public bool Matches(TaskEntity t) =>
-        t.Status == TaskStatus.Done &&
-        t.Worktree is { State: WorktreeState.Active };
+        t.Status == TaskStatus.WaitingForReview;
     public bool ShouldCount(TaskEntity t) => Matches(t);
     public bool MatchesAsContext(TaskEntity t, IReadOnlyList<TaskEntity> all) => false;
 }

src/ClaudeDo.Data/Git/GitService.cs

@@ -7,6 +7,11 @@ public sealed record MergePreview(bool Supported, bool Clean, IReadOnlyList<stri
 
 public sealed class GitService
 {
+    // git mutates shared .git/worktrees/ metadata during `worktree add`; concurrent adds
+    // race and fail with "failed to read .git/worktrees/<other>/commondir". Serialize them
+    // process-wide so parallel task starts don't collide.
+    private static readonly SemaphoreSlim WorktreeAddGate = new(1, 1);
+
     public async Task<bool> IsGitRepoAsync(string dir, CancellationToken ct = default)
     {
         var (exitCode, _, _) = await RunGitAsync(dir, ["rev-parse", "--git-dir"], ct);
@@ -23,10 +28,30 @@ public sealed class GitService
 
     public async Task WorktreeAddAsync(string repoDir, string branchName, string worktreePath, string baseCommit, CancellationToken ct = default)
     {
-        var (exitCode, _, stderr) = await RunGitAsync(repoDir,
-            ["worktree", "add", "-b", branchName, worktreePath, baseCommit], ct);
-        if (exitCode != 0)
-            throw new InvalidOperationException($"git worktree add failed (exit {exitCode}): {stderr}");
+        await WorktreeAddGate.WaitAsync(ct);
+        try
+        {
+            const int maxAttempts = 3;
+            for (var attempt = 1; ; attempt++)
+            {
+                var (exitCode, _, stderr) = await RunGitAsync(repoDir,
+                    ["worktree", "add", "-b", branchName, worktreePath, baseCommit], ct);
+                if (exitCode == 0)
+                    return;
+
+                // Transient races leave a half-written worktree metadata dir; retry briefly.
+                var transient = stderr.Contains("commondir", StringComparison.OrdinalIgnoreCase)
+                    || stderr.Contains("failed to read", StringComparison.OrdinalIgnoreCase);
+                if (!transient || attempt >= maxAttempts)
+                    throw new InvalidOperationException($"git worktree add failed (exit {exitCode}): {stderr}");
+
+                await Task.Delay(150 * attempt, ct);
+            }
+        }
+        finally
+        {
+            WorktreeAddGate.Release();
+        }
     }
 
     public async Task<string> GetStatusPorcelainAsync(string workingDirectory, CancellationToken ct = default)
@@ -99,6 +124,20 @@ public sealed class GitService
         return await GetDiffAsync(worktreePath, ct);
     }
 
+    /// <summary>
+    /// Diff between two commits, run in any repo that can reach them. Used to view a
+    /// task's changes after its worktree has been merged away (the commits survive on
+    /// the target branch even though the worktree directory and branch ref are gone).
+    /// </summary>
+    public async Task<string> GetCommitRangeDiffAsync(string repoDir, string baseCommit, string headCommit, CancellationToken ct = default)
+    {
+        var (exitCode, stdout, stderr) = await RunGitAsync(repoDir,
+            ["diff", $"{baseCommit}..{headCommit}"], ct);
+        if (exitCode != 0)
+            throw new InvalidOperationException($"git diff {baseCommit}..{headCommit} failed (exit {exitCode}): {stderr}");
+        return stdout;
+    }
+
     public async Task<string> DiffStatAsync(string worktreePath, string baseCommit, string headCommit, CancellationToken ct = default)
     {
         var (exitCode, stdout, stderr) = await RunGitAsync(worktreePath,
@@ -238,6 +277,24 @@ public sealed class GitService
             .ToList();
     }
 
+    /// <summary>
+    /// Reads a conflicted file's blob at a merge stage: 1=base, 2=ours, 3=theirs.
+    /// Returns null when the stage doesn't exist (e.g. add/add conflict has no base).
+    /// Output is NOT trimmed so file content round-trips exactly.
+    /// </summary>
+    public async Task<string?> ShowStageAsync(string repoDir, int stage, string path, CancellationToken ct = default)
+    {
+        var (exitCode, stdout, _) = await RunGitAsync(repoDir, ["show", $":{stage}:{path}"], ct, trimOutput: false);
+        return exitCode == 0 ? stdout : null;
+    }
+
+    public async Task AddPathAsync(string repoDir, string path, CancellationToken ct = default)
+    {
+        var (exitCode, _, stderr) = await RunGitAsync(repoDir, ["add", "--", path], ct);
+        if (exitCode != 0)
+            throw new InvalidOperationException($"git add '{path}' failed (exit {exitCode}): {stderr}");
+    }
+
     /// <summary>
     /// Non-destructive mergeability probe via `git merge-tree --write-tree`. Writes only
     /// loose objects — the working tree, index, and refs are left untouched.
@@ -289,7 +346,7 @@ public sealed class GitService
     }
 
     private static async Task<(int ExitCode, string Stdout, string Stderr)> RunGitAsync(
-        string workDir, IEnumerable<string> args, CancellationToken ct, string? stdinData = null)
+        string workDir, IEnumerable<string> args, CancellationToken ct, string? stdinData = null, bool trimOutput = true)
     {
         var psi = new ProcessStartInfo
         {
@@ -338,6 +395,6 @@ public sealed class GitService
 
         ct.ThrowIfCancellationRequested();
 
-        return (proc.ExitCode, stdout.TrimEnd(), stderr.TrimEnd());
+        return (proc.ExitCode, trimOutput ? stdout.TrimEnd() : stdout, stderr.TrimEnd());
     }
 }

src/ClaudeDo.Data/Migrations/20260609000000_UniqueListName.Designer.cs

@@ -0,0 +1,696 @@
+// <auto-generated />
+using System;
+using ClaudeDo.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace ClaudeDo.Data.Migrations
+{
+    [DbContext(typeof(ClaudeDoDbContext))]
+    [Migration("20260609000000_UniqueListName")]
+    partial class UniqueListName
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.11");
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.AppSettingsEntity", b =>
+                {
+                    b.Property<int>("Id")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("id");
+
+                    b.Property<string>("CentralWorktreeRoot")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("central_worktree_root");
+
+                    b.Property<int>("DailyPrepMaxTasks")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(5)
+                        .HasColumnName("daily_prep_max_tasks");
+
+                    b.Property<string>("DefaultClaudeInstructions")
+                        .IsRequired()
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT")
+                        .HasDefaultValue("")
+                        .HasColumnName("default_claude_instructions");
+
+                    b.Property<int>("DefaultMaxTurns")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(30)
+                        .HasColumnName("default_max_turns");
+
+                    b.Property<string>("DefaultModel")
+                        .IsRequired()
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT")
+                        .HasDefaultValue("sonnet")
+                        .HasColumnName("default_model");
+
+                    b.Property<string>("DefaultPermissionMode")
+                        .IsRequired()
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT")
+                        .HasDefaultValue("bypassPermissions")
+                        .HasColumnName("default_permission_mode");
+
+                    b.Property<int>("MaxParallelExecutions")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(1)
+                        .HasColumnName("max_parallel_executions");
+
+                    b.Property<string>("RepoImportFolders")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("repo_import_folders");
+
+                    b.Property<string>("ReportExcludedPaths")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("report_excluded_paths");
+
+                    b.Property<int>("StandupWeekday")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(3)
+                        .HasColumnName("standup_weekday");
+
+                    b.Property<int>("WorktreeAutoCleanupDays")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(7)
+                        .HasColumnName("worktree_auto_cleanup_days");
+
+                    b.Property<bool>("WorktreeAutoCleanupEnabled")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(false)
+                        .HasColumnName("worktree_auto_cleanup_enabled");
+
+                    b.Property<string>("WorktreeStrategy")
+                        .IsRequired()
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT")
+                        .HasDefaultValue("sibling")
+                        .HasColumnName("worktree_strategy");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("app_settings", (string)null);
+
+                    b.HasData(
+                        new
+                        {
+                            Id = 1,
+                            DailyPrepMaxTasks = 5,
+                            DefaultClaudeInstructions = "",
+                            DefaultMaxTurns = 100,
+                            DefaultModel = "sonnet",
+                            DefaultPermissionMode = "auto",
+                            MaxParallelExecutions = 1,
+                            StandupWeekday = 3,
+                            WorktreeAutoCleanupDays = 7,
+                            WorktreeAutoCleanupEnabled = false,
+                            WorktreeStrategy = "sibling"
+                        });
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.DailyNoteEntity", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("id");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("created_at");
+
+                    b.Property<DateOnly>("Date")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("note_date");
+
+                    b.Property<int>("SortOrder")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("sort_order");
+
+                    b.Property<string>("Text")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Date");
+
+                    b.ToTable("daily_notes", (string)null);
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.ListConfigEntity", b =>
+                {
+                    b.Property<string>("ListId")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("list_id");
+
+                    b.Property<string>("AgentPath")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("agent_path");
+
+                    b.Property<int?>("MaxTurns")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("max_turns");
+
+                    b.Property<string>("Model")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("model");
+
+                    b.Property<string>("SystemPrompt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("system_prompt");
+
+                    b.HasKey("ListId");
+
+                    b.ToTable("list_config", (string)null);
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.ListEntity", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("id");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("created_at");
+
+                    b.Property<string>("DefaultCommitType")
+                        .IsRequired()
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT")
+                        .HasDefaultValue("chore")
+                        .HasColumnName("default_commit_type");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("name");
+
+                    b.Property<int>("SortOrder")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(0)
+                        .HasColumnName("sort_order");
+
+                    b.Property<string>("WorkingDir")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("working_dir");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SortOrder")
+                        .HasDatabaseName("idx_lists_sort");
+
+                    b.ToTable("lists", (string)null);
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.PrimeScheduleEntity", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("id");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("created_at");
+
+                    b.Property<int>("Days")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(31)
+                        .HasColumnName("days_of_week");
+
+                    b.Property<bool>("Enabled")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(true)
+                        .HasColumnName("enabled");
+
+                    b.Property<DateTimeOffset?>("LastRunAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("last_run_at");
+
+                    b.Property<string>("PromptOverride")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("prompt_override");
+
+                    b.Property<TimeSpan>("TimeOfDay")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("time_of_day");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("prime_schedules", (string)null);
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.SubtaskEntity", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("id");
+
+                    b.Property<bool>("Completed")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(false)
+                        .HasColumnName("completed");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("created_at");
+
+                    b.Property<int>("OrderNum")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("order_num");
+
+                    b.Property<string>("TaskId")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("task_id");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("title");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TaskId")
+                        .HasDatabaseName("idx_subtasks_task_id");
+
+                    b.ToTable("subtasks", (string)null);
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.TaskEntity", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("id");
+
+                    b.Property<string>("AgentPath")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("agent_path");
+
+                    b.Property<string>("BlockedByTaskId")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("blocked_by_task_id");
+
+                    b.Property<string>("CommitType")
+                        .IsRequired()
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT")
+                        .HasDefaultValue("chore")
+                        .HasColumnName("commit_type");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("created_at");
+
+                    b.Property<string>("CreatedBy")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("created_by");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("description");
+
+                    b.Property<DateTime?>("FinishedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("finished_at");
+
+                    b.Property<bool>("IsMyDay")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(false)
+                        .HasColumnName("is_my_day");
+
+                    b.Property<bool>("IsStarred")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(false)
+                        .HasColumnName("is_starred");
+
+                    b.Property<string>("ListId")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("list_id");
+
+                    b.Property<string>("LogPath")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("log_path");
+
+                    b.Property<int?>("MaxTurns")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("max_turns");
+
+                    b.Property<string>("Model")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("model");
+
+                    b.Property<string>("Notes")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("notes");
+
+                    b.Property<string>("ParentTaskId")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("parent_task_id");
+
+                    b.Property<DateTime?>("PlanningFinalizedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("planning_finalized_at");
+
+                    b.Property<string>("PlanningPhase")
+                        .IsRequired()
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT")
+                        .HasDefaultValue("none")
+                        .HasColumnName("planning_phase");
+
+                    b.Property<string>("PlanningSessionId")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("planning_session_id");
+
+                    b.Property<string>("PlanningSessionToken")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("planning_session_token");
+
+                    b.Property<string>("Result")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("result");
+
+                    b.Property<string>("ReviewFeedback")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("review_feedback");
+
+                    b.Property<int>("RoadblockCount")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(0)
+                        .HasColumnName("roadblock_count");
+
+                    b.Property<DateTime?>("ScheduledFor")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("scheduled_for");
+
+                    b.Property<int>("SortOrder")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(0)
+                        .HasColumnName("sort_order");
+
+                    b.Property<DateTime?>("StartedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("started_at");
+
+                    b.Property<string>("Status")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("status");
+
+                    b.Property<string>("SystemPrompt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("system_prompt");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("title");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BlockedByTaskId")
+                        .HasDatabaseName("idx_tasks_blocked_by");
+
+                    b.HasIndex("ListId")
+                        .HasDatabaseName("idx_tasks_list_id");
+
+                    b.HasIndex("ParentTaskId")
+                        .HasDatabaseName("idx_tasks_parent_task_id");
+
+                    b.HasIndex("Status")
+                        .HasDatabaseName("idx_tasks_status");
+
+                    b.HasIndex("ListId", "SortOrder")
+                        .HasDatabaseName("idx_tasks_list_sort");
+
+                    b.ToTable("tasks", (string)null);
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.TaskRunEntity", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("id");
+
+                    b.Property<string>("ErrorMarkdown")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("error_markdown");
+
+                    b.Property<int?>("ExitCode")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("exit_code");
+
+                    b.Property<DateTime?>("FinishedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("finished_at");
+
+                    b.Property<bool>("IsRetry")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER")
+                        .HasDefaultValue(false)
+                        .HasColumnName("is_retry");
+
+                    b.Property<string>("LogPath")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("log_path");
+
+                    b.Property<string>("Prompt")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("prompt");
+
+                    b.Property<string>("ResultMarkdown")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("result_markdown");
+
+                    b.Property<int>("RunNumber")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("run_number");
+
+                    b.Property<string>("SessionId")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("session_id");
+
+                    b.Property<DateTime?>("StartedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("started_at");
+
+                    b.Property<string>("StructuredOutputJson")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("structured_output");
+
+                    b.Property<string>("TaskId")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("task_id");
+
+                    b.Property<int?>("TokensIn")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("tokens_in");
+
+                    b.Property<int?>("TokensOut")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("tokens_out");
+
+                    b.Property<int?>("TurnCount")
+                        .HasColumnType("INTEGER")
+                        .HasColumnName("turn_count");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TaskId")
+                        .HasDatabaseName("idx_task_runs_task_id");
+
+                    b.ToTable("task_runs", (string)null);
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.WeekReportEntity", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("id");
+
+                    b.Property<DateOnly>("EndDate")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("end_date");
+
+                    b.Property<DateTime>("GeneratedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("generated_at");
+
+                    b.Property<string>("Markdown")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("markdown");
+
+                    b.Property<DateOnly>("StartDate")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("start_date");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StartDate", "EndDate")
+                        .IsUnique();
+
+                    b.ToTable("week_reports", (string)null);
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.WorktreeEntity", b =>
+                {
+                    b.Property<string>("TaskId")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("task_id");
+
+                    b.Property<string>("BaseCommit")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("base_commit");
+
+                    b.Property<string>("BranchName")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("branch_name");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("created_at");
+
+                    b.Property<string>("DiffStat")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("diff_stat");
+
+                    b.Property<string>("HeadCommit")
+                        .HasColumnType("TEXT")
+                        .HasColumnName("head_commit");
+
+                    b.Property<string>("Path")
+                        .IsRequired()
+                        .HasColumnType("TEXT")
+                        .HasColumnName("path");
+
+                    b.Property<string>("State")
+                        .IsRequired()
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT")
+                        .HasDefaultValue("active")
+                        .HasColumnName("state");
+
+                    b.HasKey("TaskId");
+
+                    b.ToTable("worktrees", (string)null);
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.ListConfigEntity", b =>
+                {
+                    b.HasOne("ClaudeDo.Data.Models.ListEntity", "List")
+                        .WithOne("Config")
+                        .HasForeignKey("ClaudeDo.Data.Models.ListConfigEntity", "ListId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("List");
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.SubtaskEntity", b =>
+                {
+                    b.HasOne("ClaudeDo.Data.Models.TaskEntity", "Task")
+                        .WithMany("Subtasks")
+                        .HasForeignKey("TaskId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Task");
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.TaskEntity", b =>
+                {
+                    b.HasOne("ClaudeDo.Data.Models.TaskEntity", null)
+                        .WithMany()
+                        .HasForeignKey("BlockedByTaskId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.HasOne("ClaudeDo.Data.Models.ListEntity", "List")
+                        .WithMany("Tasks")
+                        .HasForeignKey("ListId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ClaudeDo.Data.Models.TaskEntity", "Parent")
+                        .WithMany("Children")
+                        .HasForeignKey("ParentTaskId")
+                        .OnDelete(DeleteBehavior.Restrict);
+
+                    b.Navigation("List");
+
+                    b.Navigation("Parent");
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.TaskRunEntity", b =>
+                {
+                    b.HasOne("ClaudeDo.Data.Models.TaskEntity", "Task")
+                        .WithMany("Runs")
+                        .HasForeignKey("TaskId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Task");
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.WorktreeEntity", b =>
+                {
+                    b.HasOne("ClaudeDo.Data.Models.TaskEntity", "Task")
+                        .WithOne("Worktree")
+                        .HasForeignKey("ClaudeDo.Data.Models.WorktreeEntity", "TaskId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Task");
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.ListEntity", b =>
+                {
+                    b.Navigation("Config");
+
+                    b.Navigation("Tasks");
+                });
+
+            modelBuilder.Entity("ClaudeDo.Data.Models.TaskEntity", b =>
+                {
+                    b.Navigation("Children");
+
+                    b.Navigation("Runs");
+
+                    b.Navigation("Subtasks");
+
+                    b.Navigation("Worktree");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/ClaudeDo.Data/Migrations/20260609000000_UniqueListName.cs

@@ -0,0 +1,30 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ClaudeDo.Data.Migrations
+{
+    /// <inheritdoc />
+    public partial class UniqueListName : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            // Remove duplicate list rows that have no tasks — keep the oldest rowid.
+            // This handles the startup-race case where both App and Worker seeded
+            // the same default list names concurrently.
+            migrationBuilder.Sql("""
+                DELETE FROM lists
+                WHERE (SELECT COUNT(*) FROM tasks WHERE list_id = lists.id) = 0
+                  AND rowid NOT IN (
+                      SELECT MIN(l2.rowid) FROM lists l2 WHERE l2.name = lists.name
+                  )
+                """);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+        }
+    }
+}

src/ClaudeDo.Data/Repositories/AppSettingsRepository.cs

@@ -18,8 +18,18 @@ public sealed class AppSettingsRepository
 
         row = new AppSettingsEntity { Id = AppSettingsEntity.SingletonId };
         _context.AppSettings.Add(row);
-        await _context.SaveChangesAsync(ct);
-        _context.Entry(row).State = EntityState.Detached;
+        try
+        {
+            await _context.SaveChangesAsync(ct);
+            _context.Entry(row).State = EntityState.Detached;
+        }
+        catch (DbUpdateException)
+        {
+            // Concurrent process already inserted the singleton — discard our attempt and re-read.
+            _context.Entry(row).State = EntityState.Detached;
+            row = await _context.AppSettings.AsNoTracking()
+                .FirstAsync(s => s.Id == AppSettingsEntity.SingletonId, ct);
+        }
         return row;
     }
 

src/ClaudeDo.Data/Repositories/TaskRepository.cs

@@ -474,32 +474,5 @@ public sealed class TaskRepository
         return chainIds.Count;
     }
 
-    public async Task TryCompleteParentAsync(
-        string parentId,
-        CancellationToken ct = default)
-    {
-        var parent = await _context.Tasks.AsNoTracking().FirstOrDefaultAsync(t => t.Id == parentId, ct);
-        if (parent is null || parent.PlanningPhase != PlanningPhase.Finalized) return;
-
-        var children = await _context.Tasks
-            .Where(t => t.ParentTaskId == parentId)
-            .Select(t => t.Status)
-            .ToListAsync(ct);
-
-        if (children.Count == 0) return;
-
-        bool allTerminal = children.All(s => s == TaskStatus.Done || s == TaskStatus.Failed);
-        if (!allTerminal) return;
-
-        bool anyFailed = children.Any(s => s == TaskStatus.Failed);
-        var finalStatus = anyFailed ? TaskStatus.Failed : TaskStatus.Done;
-        var finishedAt = DateTime.UtcNow;
-        await _context.Tasks
-            .Where(t => t.Id == parentId)
-            .ExecuteUpdateAsync(s => s
-                .SetProperty(t => t.Status, finalStatus)
-                .SetProperty(t => t.FinishedAt, finishedAt), ct);
-    }
-
     #endregion
 }

src/ClaudeDo.Data/Seeding/DefaultListsSeeder.cs

@@ -1,4 +1,3 @@
-using ClaudeDo.Data.Models;
 using Microsoft.EntityFrameworkCore;
 
 namespace ClaudeDo.Data.Seeding;
@@ -9,17 +8,18 @@ public static class DefaultListsSeeder
 
     public static async Task SeedAsync(ClaudeDoDbContext ctx, CancellationToken ct = default)
     {
-        var existing = await ctx.Lists.Select(l => l.Name).ToListAsync(ct);
         var now = DateTime.UtcNow;
-        foreach (var name in Defaults.Where(n => !existing.Contains(n)))
+        foreach (var name in Defaults)
         {
-            ctx.Lists.Add(new ListEntity
-            {
-                Id = Guid.NewGuid().ToString(),
-                Name = name,
-                CreatedAt = now,
-            });
+            var id = Guid.NewGuid().ToString();
+            // Atomic conditional insert: the SELECT ... WHERE NOT EXISTS is a single
+            // SQLite statement and cannot race — only one writer holds the lock.
+            await ctx.Database.ExecuteSqlAsync(
+                $"""
+                INSERT INTO lists (id, name, created_at, default_commit_type, sort_order)
+                SELECT {id}, {name}, {now}, 'chore', 0
+                WHERE NOT EXISTS (SELECT 1 FROM lists WHERE name = {name})
+                """, ct);
         }
-        await ctx.SaveChangesAsync(ct);
     }
 }

src/ClaudeDo.Localization/locales/de.json

@@ -53,6 +53,7 @@
     "prime": {
       "description": "Bereite dein Claude-Nutzungsfenster vor, indem an den von dir gewählten Tagen zu einer bestimmten Zeit ein einzelner nicht-interaktiver Ping ausgelöst wird. Läuft nur, solange ClaudeDo geöffnet ist. Wenn die App innerhalb von 30 Minuten vor der Zielzeit startet, wird der Ping sofort ausgelöst.",
       "addSchedule": "+ Zeitplan hinzufügen",
+      "removeScheduleTip": "Zeitplan entfernen",
       "dailyPrepMaxTasks": "Max. Aufgaben pro Tag",
       "dayMo": "Mo",
       "dayTu": "Di",
@@ -104,6 +105,8 @@
     "cancel": "Abbrechen",
     "cancelTip": "Diese Aufgabe abbrechen",
     "removeFromQueueTip": "Aus Warteschlange entfernen",
+    "toggleSubtasksTip": "Unteraufgaben ein-/ausklappen",
+    "agentSuggestedTip": "Vom Agenten vorgeschlagen",
     "scheduleTitle": "Aufgabe planen",
     "scheduleWhen": "WANN",
     "scheduleConfirm": "Planen",
@@ -130,6 +133,7 @@
   },
   "details": {
     "deleteTaskTip": "Aufgabe löschen",
+    "killSessionTip": "Laufende Sitzung beenden",
     "closeTip": "Schließen",
     "copyTaskIdTip": "Aufgaben-ID kopieren",
     "starTip": "Favorit",
@@ -149,6 +153,7 @@
     "addStepPlaceholder": "Schritt hinzufügen...",
     "detailsLabel": "DETAILS",
     "copyDescriptionTip": "Beschreibung in die Zwischenablage kopieren",
+    "copyFormattedTip": "Titel, Beschreibung und offene Schritte kopieren",
     "toggleEditPreviewTip": "Bearbeiten/Vorschau umschalten",
     "previewBtn": "Vorschau",
     "editBtn": "Bearbeiten",
@@ -184,7 +189,9 @@
   "session": {
     "chipLive": "LIVE",
     "chipDone": "FERTIG",
-    "chipFailed": "FEHLGESCHLAGEN"
+    "chipFailed": "FEHLGESCHLAGEN",
+    "reviewContinueTip": "Dieses Feedback senden und die Aufgabe erneut ausführen",
+    "reviewResetTip": "Alle Änderungen verwerfen und die Aufgabe auf Leerlauf zurücksetzen"
   },
   "modals": {
     "about": {
@@ -231,7 +238,10 @@
     "diff": {
       "title": "DIFF",
       "windowTitle": "Diff",
-      "merge": "Mergen…"
+      "merge": "Mergen…",
+      "filesHeader": "Dateien",
+      "binary": "Binärdatei — kein Text-Diff",
+      "empty": "Kein Inhalt"
     },
     "worktree": {
       "title": "Worktree"
@@ -243,6 +253,12 @@
       "columnState": "STATUS",
       "columnDiff": "DIFF",
       "columnAge": "ALTER",
+      "columnOutcome": "ERGEBNIS",
+      "selectAll": "Alle auswählen",
+      "targetLabel": "Ziel",
+      "mergeAll": "Alle mergen",
+      "needsResolution": "ZU LÖSEN",
+      "resolve": "Lösen",
       "phantom": "Phantom",
       "phantomTooltip": "Verzeichnis fehlt auf der Festplatte",
       "ctxShowDiff": "Diff anzeigen",
@@ -358,6 +374,20 @@
       "loading": "Wird geladen…"
     }
   },
+  "conflictResolver": {
+    "windowTitle": "Merge-Konflikte lösen",
+    "modalTitle": "KONFLIKTE LÖSEN",
+    "loading": "Konflikte werden geladen…",
+    "current": "Aktuell (unsere)",
+    "incoming": "Eingehend (ihre)",
+    "mergedResult": "Zusammengeführtes Ergebnis",
+    "acceptCurrent": "Aktuelle übernehmen",
+    "acceptIncoming": "Eingehende übernehmen",
+    "acceptBoth": "Beide übernehmen",
+    "editManually": "Manuell bearbeiten",
+    "continue": "Lösen & fortfahren",
+    "abort": "Merge abbrechen"
+  },
   "controls": {
     "datePicker": {
       "today": "Heute",
@@ -400,7 +430,7 @@
     "weeklyReport": { "invalidRange": "Ungültiger Datumsbereich.", "generating": "Bericht wird erstellt…", "error": "Fehler: {0}" },
     "filesTab": { "workerOffline": "Worker offline.", "noneBundled": "Keine Standard-Agenten mitgeliefert.", "allPresent": "Alle Standard-Agenten bereits vorhanden.", "restored": "{0} Standard-Agent(en) wiederhergestellt.", "restoreFailed": "Wiederherstellung fehlgeschlagen: {0}", "openFailed": "Öffnen fehlgeschlagen: {0}" },
     "worktreesTab": { "workerOffline": "Worker offline.", "removed": "{0} Worktree(s) entfernt.", "blocked": "Zwangsentfernung nicht möglich: {0} Aufgabe(n) laufen noch. Brich sie zuerst ab.", "removedFrom": "{0} Worktree(s) von {1} Aufgabe(n) entfernt." },
-    "worktreesOverview": { "titleAll": "Worktrees", "titleList": "Worktrees — {0}", "listFallback": "Liste", "cleanupFailed": "Aufräumen fehlgeschlagen.", "removed": "{0} Worktree(s) entfernt.", "discardFailed": "Worktree konnte nicht verworfen werden.", "keepFailed": "Worktree konnte nicht behalten werden.", "cannotForceRunning": "Eine laufende Aufgabe kann nicht zwangsweise entfernt werden.", "forceRemoveFailed": "Zwangsentfernung fehlgeschlagen." },
+    "worktreesOverview": { "titleAll": "Worktrees", "titleList": "Worktrees — {0}", "listFallback": "Liste", "cleanupFailed": "Aufräumen fehlgeschlagen.", "removed": "{0} Worktree(s) entfernt.", "discardFailed": "Worktree konnte nicht verworfen werden.", "keepFailed": "Worktree konnte nicht behalten werden.", "cannotForceRunning": "Eine laufende Aufgabe kann nicht zwangsweise entfernt werden.", "forceRemoveFailed": "Zwangsentfernung fehlgeschlagen.", "batchProgress": "Merge {0}/{1}…", "batchDone": "{0} gemergt, {1} zu lösen." },
     "listSettings": { "untitled": "Unbenannt" },
     "lists": { "localSuffix": "{0} / lokal", "smartMyDay": "Mein Tag", "smartImportant": "Wichtig", "smartPlanned": "Geplant", "virtualQueue": "Warteschlange", "virtualRunning": "Läuft", "virtualReview": "Prüfung", "newList": "Neue Liste" }
   }

src/ClaudeDo.Localization/locales/en.json

@@ -53,6 +53,7 @@
     "prime": {
       "description": "Prime your Claude usage window by firing a single non-interactive ping on the days you choose, at a chosen time. Only runs while ClaudeDo is open. If the app starts within 30 minutes of the target time, the ping fires immediately.",
       "addSchedule": "+ Add schedule",
+      "removeScheduleTip": "Remove schedule",
       "dailyPrepMaxTasks": "Max tasks per day",
       "dayMo": "Mo",
       "dayTu": "Tu",
@@ -104,6 +105,8 @@
     "cancel": "Cancel",
     "cancelTip": "Cancel this task",
     "removeFromQueueTip": "Remove from queue",
+    "toggleSubtasksTip": "Expand / collapse subtasks",
+    "agentSuggestedTip": "Suggested by the agent",
     "scheduleTitle": "Schedule task",
     "scheduleWhen": "WHEN",
     "scheduleConfirm": "Schedule",
@@ -130,6 +133,7 @@
   },
   "details": {
     "deleteTaskTip": "Delete task",
+    "killSessionTip": "Kill the running session",
     "closeTip": "Close",
     "copyTaskIdTip": "Copy task ID",
     "starTip": "Star",
@@ -149,6 +153,7 @@
     "addStepPlaceholder": "Add a step...",
     "detailsLabel": "DETAILS",
     "copyDescriptionTip": "Copy description to clipboard",
+    "copyFormattedTip": "Copy title, description and open steps",
     "toggleEditPreviewTip": "Toggle edit/preview",
     "previewBtn": "Preview",
     "editBtn": "Edit",
@@ -184,7 +189,9 @@
   "session": {
     "chipLive": "LIVE",
     "chipDone": "DONE",
-    "chipFailed": "FAILED"
+    "chipFailed": "FAILED",
+    "reviewContinueTip": "Send this feedback and re-run the task",
+    "reviewResetTip": "Discard all changes and reset the task to Idle"
   },
   "modals": {
     "about": {
@@ -231,7 +238,10 @@
     "diff": {
       "title": "DIFF",
       "windowTitle": "Diff",
-      "merge": "Merge…"
+      "merge": "Merge…",
+      "filesHeader": "Files",
+      "binary": "Binary file — no text diff",
+      "empty": "No content"
     },
     "worktree": {
       "title": "Worktree"
@@ -243,6 +253,12 @@
       "columnState": "STATE",
       "columnDiff": "DIFF",
       "columnAge": "AGE",
+      "columnOutcome": "RESULT",
+      "selectAll": "Select all",
+      "targetLabel": "Target",
+      "mergeAll": "Merge all",
+      "needsResolution": "NEEDS RESOLUTION",
+      "resolve": "Resolve",
       "phantom": "phantom",
       "phantomTooltip": "Directory missing on disk",
       "ctxShowDiff": "Show diff",
@@ -358,6 +374,20 @@
       "loading": "Loading…"
     }
   },
+  "conflictResolver": {
+    "windowTitle": "Resolve merge conflicts",
+    "modalTitle": "RESOLVE CONFLICTS",
+    "loading": "Loading conflicts…",
+    "current": "Current (ours)",
+    "incoming": "Incoming (theirs)",
+    "mergedResult": "Merged result",
+    "acceptCurrent": "Accept Current",
+    "acceptIncoming": "Accept Incoming",
+    "acceptBoth": "Accept Both",
+    "editManually": "Edit manually",
+    "continue": "Resolve & continue",
+    "abort": "Abort merge"
+  },
   "controls": {
     "datePicker": {
       "today": "Today",
@@ -400,7 +430,7 @@
     "weeklyReport": { "invalidRange": "Invalid date range.", "generating": "Generating report…", "error": "Error: {0}" },
     "filesTab": { "workerOffline": "Worker offline.", "noneBundled": "No default agents bundled.", "allPresent": "All default agents already present.", "restored": "Restored {0} default agent(s).", "restoreFailed": "Restore failed: {0}", "openFailed": "Open failed: {0}" },
     "worktreesTab": { "workerOffline": "Worker offline.", "removed": "Removed {0} worktree(s).", "blocked": "Cannot force-remove: {0} task(s) still running. Cancel them first.", "removedFrom": "Removed {0} worktree(s) from {1} task(s)." },
-    "worktreesOverview": { "titleAll": "Worktrees", "titleList": "Worktrees — {0}", "listFallback": "list", "cleanupFailed": "Cleanup failed.", "removed": "Removed {0} worktree(s).", "discardFailed": "Failed to discard worktree.", "keepFailed": "Failed to keep worktree.", "cannotForceRunning": "Cannot force-remove a running task.", "forceRemoveFailed": "Force remove failed." },
+    "worktreesOverview": { "titleAll": "Worktrees", "titleList": "Worktrees — {0}", "listFallback": "list", "cleanupFailed": "Cleanup failed.", "removed": "Removed {0} worktree(s).", "discardFailed": "Failed to discard worktree.", "keepFailed": "Failed to keep worktree.", "cannotForceRunning": "Cannot force-remove a running task.", "forceRemoveFailed": "Force remove failed.", "batchProgress": "Merging {0}/{1}…", "batchDone": "Merged {0}, {1} need resolution." },
     "listSettings": { "untitled": "Untitled" },
     "lists": { "localSuffix": "{0} / local", "smartMyDay": "My Day", "smartImportant": "Important", "smartPlanned": "Planned", "virtualQueue": "Queue", "virtualRunning": "Running", "virtualReview": "Review", "newList": "New list" }
   }

src/ClaudeDo.Ui/Converters/DiffLineKindToBrushConverter.cs

@@ -1,30 +0,0 @@
-using System.Globalization;
-using Avalonia.Data.Converters;
-using Avalonia.Media;
-using ClaudeDo.Ui.ViewModels.Modals;
-
-namespace ClaudeDo.Ui.Converters;
-
-public sealed class DiffLineKindToBrushConverter : IValueConverter
-{
-    private static readonly ISolidColorBrush Added = new SolidColorBrush(Color.Parse("#66BB6A"));
-    private static readonly ISolidColorBrush Removed = new SolidColorBrush(Color.Parse("#EF5350"));
-    private static readonly ISolidColorBrush Hunk = new SolidColorBrush(Color.Parse("#42A5F5"));
-    private static readonly ISolidColorBrush Header = new SolidColorBrush(Color.Parse("#9E9E9E"));
-    private static readonly ISolidColorBrush Default = new SolidColorBrush(Color.Parse("#CFD8DC"));
-
-    public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture) =>
-        value is WorktreeDiffLineKind kind
-            ? kind switch
-            {
-                WorktreeDiffLineKind.Added   => Added,
-                WorktreeDiffLineKind.Removed => Removed,
-                WorktreeDiffLineKind.Hunk    => Hunk,
-                WorktreeDiffLineKind.Header  => Header,
-                _                            => Default,
-            }
-            : Default;
-
-    public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
-        => throw new NotSupportedException();
-}

src/ClaudeDo.Ui/Design/IslandStyles.axaml

@@ -574,6 +574,13 @@
   <Style Selector="Border[Tag=?] > TextBlock">
     <Setter Property="Foreground" Value="{StaticResource TextFaintBrush}"/>
   </Style>
+  <!-- R → rename (sage) -->
+  <Style Selector="Border[Tag=R]">
+    <Setter Property="Background" Value="#268B9D7A"/>
+  </Style>
+  <Style Selector="Border[Tag=R] > TextBlock">
+    <Setter Property="Foreground" Value="{StaticResource SageBrush}"/>
+  </Style>
 
   <!-- ============================================================ -->
   <!-- LIST NAV ITEM                                                -->

src/ClaudeDo.Ui/Services/Interfaces/IWorkerClient.cs

@@ -59,7 +59,6 @@ public interface IWorkerClient : INotifyPropertyChanged
     Task<MergeTargetsDto?> GetMergeTargetsAsync(string taskId);
     Task<IReadOnlyList<SubtaskDiffDto>> GetPlanningAggregateAsync(string planningTaskId);
     Task<CombinedDiffResultDto?> BuildPlanningIntegrationBranchAsync(string planningTaskId, string targetBranch);
-    Task MergeAllPlanningAsync(string planningTaskId, string targetBranch);
     Task ContinuePlanningMergeAsync(string planningTaskId);
     Task AbortPlanningMergeAsync(string planningTaskId);
     Task QueuePlanningSubtasksAsync(string parentTaskId, CancellationToken ct = default);

src/ClaudeDo.Ui/Services/WorkerClient.cs

@@ -66,7 +66,7 @@ public partial class WorkerClient : ObservableObject, IAsyncDisposable, IWorkerC
 
     public event Action<PrimeFiredEvent>? PrimeFired;
 
-    public string? LastMergeAllTarget { get; private set; }
+    public string? LastApproveTarget { get; private set; }
 
     public WorkerClient(string signalRUrl)
     {
@@ -412,7 +412,10 @@ public partial class WorkerClient : ObservableObject, IAsyncDisposable, IWorkerC
     }
 
     public Task<MergeResultDto?> ApproveReviewAsync(string taskId, string targetBranch)
-        => TryInvokeAsync<MergeResultDto>("ApproveReview", taskId, targetBranch);
+    {
+        LastApproveTarget = targetBranch;
+        return TryInvokeAsync<MergeResultDto>("ApproveReview", taskId, targetBranch);
+    }
 
     public Task<MergePreviewDto?> PreviewMergeAsync(string taskId, string targetBranch)
         => TryInvokeAsync<MergePreviewDto>("PreviewMerge", taskId, targetBranch);
@@ -486,12 +489,6 @@ public partial class WorkerClient : ObservableObject, IAsyncDisposable, IWorkerC
     public Task<CombinedDiffResultDto?> BuildPlanningIntegrationBranchAsync(string planningTaskId, string targetBranch)
         => TryInvokeAsync<CombinedDiffResultDto>("BuildPlanningIntegrationBranch", planningTaskId, targetBranch);
 
-    public async Task MergeAllPlanningAsync(string planningTaskId, string targetBranch)
-    {
-        LastMergeAllTarget = targetBranch;
-        await _hub.InvokeAsync("MergeAllPlanning", planningTaskId, targetBranch);
-    }
-
     public async Task ContinuePlanningMergeAsync(string planningTaskId)
     {
         await _hub.InvokeAsync("ContinuePlanningMerge", planningTaskId);

src/ClaudeDo.Ui/ViewModels/Conflicts/ConflictModels.cs

@@ -0,0 +1,49 @@
+using System.Collections.Generic;
+using System.Linq;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace ClaudeDo.Ui.ViewModels.Conflicts;
+
+public sealed partial class ConflictHunk : ObservableObject
+{
+    public string Ours { get; }
+    public string Theirs { get; }
+    public string? Base { get; }
+
+    [ObservableProperty] private string? _resolution;
+
+    public bool IsResolved => Resolution is not null;
+
+    public ConflictHunk(string ours, string theirs, string? @base)
+    {
+        Ours = ours;
+        Theirs = theirs;
+        Base = @base;
+    }
+
+    partial void OnResolutionChanged(string? value) => OnPropertyChanged(nameof(IsResolved));
+
+    [RelayCommand] private void AcceptCurrent()  => Resolution = Ours;
+    [RelayCommand] private void AcceptIncoming() => Resolution = Theirs;
+    [RelayCommand] private void AcceptBoth()     => Resolution = Ours + Theirs;
+    [RelayCommand] private void EditManually()   => Resolution ??= Ours;
+}
+
+public sealed class ConflictFile
+{
+    public string Path { get; }
+    public IReadOnlyList<ConflictHunk> Hunks { get; }
+
+    public ConflictFile(string path, IReadOnlyList<ConflictHunk> hunks)
+    {
+        Path = path;
+        Hunks = hunks;
+    }
+
+    public bool AllHunksResolved => Hunks.Count > 0 && Hunks.All(h => h.IsResolved);
+
+    /// <summary>Merged file content: concatenation of each hunk's resolution
+    /// (single whole-file hunk today; concatenation stays correct for multi-hunk later).</summary>
+    public string ComposeResolvedContent() => string.Concat(Hunks.Select(h => h.Resolution));
+}

src/ClaudeDo.Ui/ViewModels/Conflicts/ConflictResolverViewModel.cs

@@ -0,0 +1,116 @@
+using System;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Linq;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using ClaudeDo.Ui.Services;
+
+namespace ClaudeDo.Ui.ViewModels.Conflicts;
+
+public sealed partial class ConflictResolverViewModel : ObservableObject
+{
+    private readonly IWorkerClient _worker;
+    private readonly string _taskId;
+
+    public ObservableCollection<ConflictFile> Files { get; } = new();
+
+    [ObservableProperty] private bool _isBusy;
+    [ObservableProperty] private string? _error;
+    [ObservableProperty] private bool _canContinue;
+
+    public string TaskId => _taskId;
+    public Action? CloseRequested { get; set; }
+
+    public ConflictResolverViewModel(IWorkerClient worker, string taskId)
+    {
+        _worker = worker;
+        _taskId = taskId;
+    }
+
+    /// <summary>Starts the conflict merge and loads ours/theirs/base per file.
+    /// Returns true when there are conflicts to resolve (caller should show the dialog).</summary>
+    public async Task<bool> OpenAsync(string targetBranch)
+    {
+        IsBusy = true;
+        Error = null;
+        try
+        {
+            var start = await _worker.StartConflictMergeAsync(_taskId, targetBranch);
+            if (!string.Equals(start.Status, "conflict", StringComparison.Ordinal))
+            {
+                if (string.Equals(start.Status, "blocked", StringComparison.Ordinal))
+                    Error = start.ErrorMessage;
+                return false;
+            }
+
+            var conflicts = await _worker.GetMergeConflictsAsync(_taskId);
+            Files.Clear();
+            foreach (var f in conflicts.Files)
+            {
+                var hunks = f.Hunks.Select(h =>
+                {
+                    var hk = new ConflictHunk(h.Ours, h.Theirs, h.Base);
+                    hk.PropertyChanged += OnHunkChanged;
+                    return hk;
+                }).ToList();
+                Files.Add(new ConflictFile(f.Path, hunks));
+            }
+            RecomputeCanContinue();
+            return Files.Count > 0;
+        }
+        catch (Exception ex)
+        {
+            Error = ex.Message;
+            return false;
+        }
+        finally { IsBusy = false; }
+    }
+
+    private void OnHunkChanged(object? sender, PropertyChangedEventArgs e)
+    {
+        if (e.PropertyName is nameof(ConflictHunk.IsResolved) or nameof(ConflictHunk.Resolution))
+            RecomputeCanContinue();
+    }
+
+    private void RecomputeCanContinue()
+        => CanContinue = Files.Count > 0 && Files.All(f => f.AllHunksResolved);
+
+    [RelayCommand]
+    private async Task ContinueAsync()
+    {
+        if (!CanContinue) return;
+        IsBusy = true;
+        Error = null;
+        try
+        {
+            foreach (var file in Files)
+                await _worker.WriteConflictResolutionAsync(_taskId, file.Path, file.ComposeResolvedContent());
+
+            var result = await _worker.ContinueMergeAsync(_taskId);
+            if (string.Equals(result.Status, "merged", StringComparison.Ordinal))
+                CloseRequested?.Invoke();
+            else
+                Error = result.ErrorMessage ?? "Conflicts not fully resolved — review and retry.";
+        }
+        catch (Exception ex)
+        {
+            Error = ex.Message;
+        }
+        finally { IsBusy = false; }
+    }
+
+    [RelayCommand]
+    private async Task AbortAsync()
+    {
+        IsBusy = true;
+        try { await _worker.AbortMergeAsync(_taskId); }
+        catch (Exception ex) { Error = ex.Message; }
+        finally
+        {
+            IsBusy = false;
+            CloseRequested?.Invoke();
+        }
+    }
+}

src/ClaudeDo.Ui/ViewModels/Islands/DetailsIslandViewModel.cs

@@ -46,13 +46,21 @@ public sealed class LogLineViewModel
     };
 }
 
-public sealed partial class DetailsIslandViewModel : ViewModelBase
+public sealed partial class DetailsIslandViewModel : ViewModelBase, IDisposable
 {
     private readonly IDbContextFactory<ClaudeDoDbContext> _dbFactory;
     private readonly IWorkerClient _worker;
     private readonly IServiceProvider _services;
     private readonly INotesApi _notesApi;
 
+    // Captured handler delegates for disposal
+    private readonly EventHandler _langChangedHandler;
+    private readonly System.ComponentModel.PropertyChangedEventHandler _workerPropertyChangedHandler;
+    private readonly Action<string, string, DateTime> _workerTaskStartedHandler;
+    private readonly Action<string, string, string, DateTime> _workerTaskFinishedHandler;
+    private readonly Action<string> _workerWorktreeUpdatedHandler;
+    private readonly Action<string> _workerTaskUpdatedHandler;
+
     [ObservableProperty] private bool _isNotesMode;
     [ObservableProperty] private bool _isPrepMode;
     [ObservableProperty] private bool _isPrepRunning;
@@ -153,14 +161,16 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
     public bool ShowMergeSection =>
         WorktreePath != null || Task?.IsPlanningParent == true || HasChildOutcomes;
 
-    // Nothing to manage yet (idle/queued/running standalone): show a hint.
-    public bool ShowSessionEmpty =>
-        !IsWaitingForReview && !ShowMergeSection && !HasChildOutcomes;
-
     private void NotifySessionSections()
     {
+        OnPropertyChanged(nameof(HasChildOutcomes));
         OnPropertyChanged(nameof(ShowMergeSection));
-        OnPropertyChanged(nameof(ShowSessionEmpty));
+        NotifyAttention();
+
+        // The Session tab is only visible when it has outcomes; if it just
+        // emptied while selected, fall back to Output so the body isn't blank.
+        if (!HasChildOutcomes && SelectedTab == "session")
+            SelectedTab = "output";
     }
 
     public string TurnsText   => $"{Turns}/{EffectiveMaxTurns}";
@@ -176,6 +186,53 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         IsFailed ? "The session ended with an error." :
         IsCancelled ? "The session was cancelled." : "";
 
+    // The session's outcome summary — the task's Result minus any roadblock
+    // section (those get their own card), falling back to the run's
+    // ErrorMarkdown for hard failures. Shown once a run has finished.
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(ShowSessionOutcome))]
+    private string? _sessionOutcome;
+
+    public bool ShowSessionOutcome =>
+        !string.IsNullOrWhiteSpace(SessionOutcome)
+        && (IsWaitingForReview || IsDone || IsFailed || IsCancelled);
+
+    // The roadblocks the agent emitted (CLAUDEDO_BLOCKED), parsed out of the
+    // run result so they can surface as a distinct colored card.
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(ShowRoadblockCard))]
+    private string? _roadblocks;
+
+    public bool ShowRoadblockCard =>
+        !string.IsNullOrWhiteSpace(Roadblocks)
+        && (IsWaitingForReview || IsDone || IsFailed || IsCancelled);
+
+    // Worker writes roadblocks into the result under this header
+    // (TaskRunner.ComposeReviewResult). Split it back out for display.
+    private const string RoadblockMarker = "Roadblocks reported during the run:";
+
+    private void ApplyOutcome(string? result, string? errorFallback)
+    {
+        if (string.IsNullOrWhiteSpace(result))
+        {
+            SessionOutcome = errorFallback;
+            Roadblocks = null;
+            return;
+        }
+
+        var idx = result.IndexOf(RoadblockMarker, StringComparison.Ordinal);
+        if (idx < 0)
+        {
+            SessionOutcome = result;
+            Roadblocks = null;
+            return;
+        }
+
+        var summary = result[..idx].TrimEnd().TrimEnd('⚠').TrimEnd();
+        SessionOutcome = string.IsNullOrWhiteSpace(summary) ? null : summary;
+        Roadblocks = result[(idx + RoadblockMarker.Length)..].Trim();
+    }
+
     public string SessionLabel => "claude-session";
 
     // Short task-id badge, e.g. "#T1A"
@@ -222,6 +279,8 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         OnPropertyChanged(nameof(IsAgentSectionEnabled));
         OnPropertyChanged(nameof(ShowRoadblock));
         OnPropertyChanged(nameof(RoadblockMessage));
+        OnPropertyChanged(nameof(ShowSessionOutcome));
+        OnPropertyChanged(nameof(ShowRoadblockCard));
         NotifySessionSections();
     }
     [ObservableProperty] private string? _model;
@@ -296,7 +355,11 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
 
     [ObservableProperty] private string? _worktreePath;
     [ObservableProperty] private string? _worktreeBaseCommit;
+    [ObservableProperty] private string? _worktreeHeadCommit;
     [ObservableProperty] private string? _worktreeStateLabel;
+    // Repo working dir of the selected task's list — used to diff a merged task's
+    // commit range after its worktree directory is gone.
+    private string? _listWorkingDir;
     [ObservableProperty] private string? _branchLine;
     [ObservableProperty] private int _turns;
     [ObservableProperty] private int _tokens;
@@ -330,16 +393,32 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
     public ObservableCollection<ChildOutcomeRowViewModel> ChildOutcomes { get; } = new();
     public bool HasChildOutcomes => ChildOutcomes.Count > 0;
 
+    // Children that need the user's attention before the parent can be approved:
+    // failed, cancelled, still awaiting their own review, or that reported roadblocks.
+    // The parent deliberately stays in WaitingForChildren until these are resolved;
+    // this surfaces a flag so the roadblock is visible on the parent.
+    public int ChildrenNeedingAttention => ChildOutcomes.Count(c =>
+        c.Status == ClaudeDo.Data.Models.TaskStatus.Failed
+        || c.Status == ClaudeDo.Data.Models.TaskStatus.Cancelled
+        || c.Status == ClaudeDo.Data.Models.TaskStatus.WaitingForReview
+        || c.RoadblockCount > 0);
+    public bool HasChildrenNeedingAttention => ChildrenNeedingAttention > 0;
+    public string ChildrenAttentionText => ChildrenNeedingAttention == 1
+        ? "1 child needs attention"
+        : $"{ChildrenNeedingAttention} children need attention";
+
+    private void NotifyAttention()
+    {
+        OnPropertyChanged(nameof(ChildrenNeedingAttention));
+        OnPropertyChanged(nameof(HasChildrenNeedingAttention));
+        OnPropertyChanged(nameof(ChildrenAttentionText));
+    }
+
     [ObservableProperty] private string _newSubtaskTitle = "";
 
     // Planning merge controls
     [ObservableProperty] private ObservableCollection<string> _mergeTargetBranches = new();
     [ObservableProperty] private string? _selectedMergeTarget;
-    [ObservableProperty]
-    [NotifyCanExecuteChangedFor(nameof(MergeAllCommand))]
-    private bool _canMergeAll;
-    [ObservableProperty] private string? _mergeAllDisabledReason;
-    [ObservableProperty] private string? _mergeAllError;
 
     [ObservableProperty]
     [NotifyPropertyChangedFor(nameof(ShowMergePreviewMuted))]
@@ -356,9 +435,6 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
     public bool ShowMergePreviewMuted =>
         !MergeIsClean && !MergeIsConflict && !string.IsNullOrEmpty(MergePreviewText);
 
-    public bool ShowSingleMerge =>
-        WorktreePath != null && Task?.IsPlanningParent != true;
-
     // Claude CLI stream-json parser + buffer for partial text deltas
     private readonly StreamLineFormatter _formatter = new();
     private readonly StringBuilder _claudeBuf = new();
@@ -390,6 +466,10 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
     // Set by the view so DeleteTaskCommand can show an error message
     public Func<string, System.Threading.Tasks.Task>? ShowErrorAsync { get; set; }
 
+    // Invoked when a single-task merge/approve hits a conflict. Wired by the
+    // integrator to Layer C's conflict resolver. Args: (taskId, targetBranch).
+    public Func<string, string, System.Threading.Tasks.Task>? RequestConflictResolution { get; set; }
+
     private static string StatusToStateKey(ClaudeDo.Data.Models.TaskStatus status) => status switch
     {
         ClaudeDo.Data.Models.TaskStatus.Queued           => "queued",
@@ -427,6 +507,21 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         catch { }
     }
 
+    // Reload the session outcome (task Result incl. roadblocks, or the run's
+    // error) so it appears as soon as a run finishes.
+    private async System.Threading.Tasks.Task RefreshOutcomeAsync(string taskId)
+    {
+        try
+        {
+            await using var ctx = await _dbFactory.CreateDbContextAsync();
+            var entity = await ctx.Tasks.AsNoTracking().FirstOrDefaultAsync(t => t.Id == taskId);
+            var latestRun = await new TaskRunRepository(ctx).GetLatestByTaskIdAsync(taskId);
+            if (Task?.Id != taskId) return;
+            ApplyOutcome(entity?.Result, latestRun?.ErrorMarkdown);
+        }
+        catch { }
+    }
+
     public DetailsIslandViewModel(IDbContextFactory<ClaudeDoDbContext> dbFactory, IWorkerClient worker, IServiceProvider services, INotesApi notesApi)
     {
         _dbFactory = dbFactory;
@@ -435,13 +530,14 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         _notesApi = notesApi;
         Notes = new NotesEditorViewModel(_notesApi);
         Subtasks.CollectionChanged += (_, _) => NotifyStepsChanged();
-        Loc.LanguageChanged += (_, _) =>
+        _langChangedHandler = (_, _) =>
         {
             OnPropertyChanged(nameof(AgentStatusLabel));
             RecomputeModelBadge();
             RecomputeTurnsBadge();
             RecomputeAgentBadge();
         };
+        Loc.LanguageChanged += _langChangedHandler;
 
         // Subscribe once; filter by current task id inside the handler
         _worker.TaskMessageEvent += OnTaskMessage;
@@ -450,7 +546,7 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         _worker.PrepFinishedEvent += OnPrepFinished;
 
         // Re-evaluate CanExecute when worker connection flips.
-        _worker.PropertyChanged += (_, e) =>
+        _workerPropertyChangedHandler = (_, e) =>
         {
             if (e.PropertyName == nameof(WorkerClient.IsConnected))
             {
@@ -460,14 +556,17 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
                 ContinueCommand.NotifyCanExecuteChanged();
             }
         };
+        _worker.PropertyChanged += _workerPropertyChangedHandler;
 
         // If the task row's live status changes (e.g. TaskStarted/Finished), mirror it.
-        _worker.TaskStartedEvent += (slot, taskId, startedAt) =>
+        _workerTaskStartedHandler = (slot, taskId, startedAt) =>
         {
             if (Task?.Id == taskId) AgentState = "running";
             _ = RefreshChildOutcomeAsync(taskId);
         };
-        _worker.TaskFinishedEvent += (slot, taskId, status, finishedAt) =>
+        _worker.TaskStartedEvent += _workerTaskStartedHandler;
+
+        _workerTaskFinishedHandler = (slot, taskId, status, finishedAt) =>
         {
             if (Task?.Id != taskId) return;
             FlushClaudeBuffer();
@@ -480,31 +579,33 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             // Re-query to pick up worktree created during the run.
             _ = RefreshWorktreeAsync(taskId);
             _ = RefreshChildOutcomeAsync(taskId);
+            _ = RefreshOutcomeAsync(taskId);
         };
+        _worker.TaskFinishedEvent += _workerTaskFinishedHandler;
 
-        _worker.WorktreeUpdatedEvent += taskId =>
+        _workerWorktreeUpdatedHandler = taskId =>
         {
             if (Task?.Id == taskId) _ = RefreshWorktreeAsync(taskId);
             if (Task?.IsPlanningParent == true) _ = RefreshPlanningChildAsync(taskId);
             _ = RefreshChildOutcomeAsync(taskId);
         };
+        _worker.WorktreeUpdatedEvent += _workerWorktreeUpdatedHandler;
 
-        _worker.TaskUpdatedEvent += taskId =>
+        _workerTaskUpdatedHandler = taskId =>
         {
             if (Task?.Id == taskId) _ = RefreshStatusAsync(taskId);
             if (Task?.IsPlanningParent == true) _ = RefreshPlanningChildAsync(taskId);
             _ = RefreshChildOutcomeAsync(taskId);
         };
+        _worker.TaskUpdatedEvent += _workerTaskUpdatedHandler;
 
         Subtasks.CollectionChanged += (_, _) =>
         {
-            RecomputeCanMergeAll();
             ReviewCombinedDiffCommand.NotifyCanExecuteChanged();
         };
 
         ChildOutcomes.CollectionChanged += (_, _) =>
         {
-            RecomputeCanMergeAll();
             ReviewCombinedDiffCommand.NotifyCanExecuteChanged();
             NotifySessionSections();
         };
@@ -512,6 +613,20 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         PrepLog.CollectionChanged += (_, _) => OnPropertyChanged(nameof(ShowPrepEmptyState));
     }
 
+    public void Dispose()
+    {
+        Loc.LanguageChanged -= _langChangedHandler;
+        _worker.PropertyChanged -= _workerPropertyChangedHandler;
+        _worker.TaskStartedEvent -= _workerTaskStartedHandler;
+        _worker.TaskFinishedEvent -= _workerTaskFinishedHandler;
+        _worker.WorktreeUpdatedEvent -= _workerWorktreeUpdatedHandler;
+        _worker.TaskUpdatedEvent -= _workerTaskUpdatedHandler;
+        _worker.TaskMessageEvent -= OnTaskMessage;
+        _worker.PrepStartedEvent -= OnPrepStarted;
+        _worker.PrepLineEvent -= OnPrepLine;
+        _worker.PrepFinishedEvent -= OnPrepFinished;
+    }
+
     private void OnTaskMessage(string taskId, string line)
     {
         if (taskId != _subscribedTaskId) return;
@@ -740,9 +855,8 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         OnPropertyChanged(nameof(HasChildOutcomes));
         MergeTargetBranches.Clear();
         SelectedMergeTarget = null;
-        CanMergeAll = false;
-        MergeAllDisabledReason = null;
-        MergeAllError = null;
+        SessionOutcome = null;
+        Roadblocks = null;
         _claudeBuf.Clear();
 
         if (row == null)
@@ -752,6 +866,8 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             EditableDescription = "";
             Model = null;
             WorktreePath = null;
+            WorktreeHeadCommit = null;
+            _listWorkingDir = null;
             WorktreeStateLabel = null;
             BranchLine = null;
             DiffAdditions = 0;
@@ -788,6 +904,7 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             var entity = await ctx.Tasks
                 .AsNoTracking()
                 .Include(t => t.Worktree)
+                .Include(t => t.List)
                 .FirstOrDefaultAsync(t => t.Id == row.Id, ct);
             ct.ThrowIfCancellationRequested();
             if (entity == null) return;
@@ -797,8 +914,10 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             try { EditableDescription = entity.Description ?? ""; }
             finally { _suppressDescSave = false; }
             Model = entity.Model;
+            _listWorkingDir = entity.List?.WorkingDir;
             WorktreePath = entity.Worktree?.Path;
             WorktreeBaseCommit = entity.Worktree?.BaseCommit;
+            WorktreeHeadCommit = entity.Worktree?.HeadCommit;
             WorktreeStateLabel = entity.Worktree?.State.ToString();
             BranchLine = entity.Worktree is { } w ? $"{w.BranchName} \u2190 main" : null;
             var (add, del) = ParseDiffStat(entity.Worktree?.DiffStat);
@@ -812,6 +931,7 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             var latestRun = await runRepo.GetLatestByTaskIdAsync(row.Id, ct);
             ct.ThrowIfCancellationRequested();
             LatestRunSessionId = latestRun?.SessionId;
+            ApplyOutcome(entity.Result, latestRun?.ErrorMarkdown);
 
             // Subscribe only after DB load confirms the task exists
             _subscribedTaskId = row.Id;
@@ -825,13 +945,12 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
                 Subtasks.Add(new SubtaskRowViewModel { Id = s.Id, Title = s.Title, Done = s.Completed });
 
             if (entity.PlanningPhase != ClaudeDo.Data.Models.PlanningPhase.None)
-            {
                 await LoadPlanningChildrenAsync(row.Id, ct);
-            }
-            else
-            {
-                await LoadChildOutcomesAsync(row.Id, ct);
-            }
+            // Surface every parent's children — planning or improvement — in the
+            // Session tab with their live status + roadblock count. This is what
+            // makes the Session tab appear for planning parents and lets a child's
+            // roadblock register on the parent.
+            await LoadChildOutcomesAsync(row.Id, ct);
 
             if (entity.Worktree != null
                 && entity.PlanningPhase == ClaudeDo.Data.Models.PlanningPhase.None
@@ -894,7 +1013,6 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
                 }
             }
 
-            RecomputeCanMergeAll();
         }
         catch (OperationCanceledException) { }
         catch { /* best-effort */ }
@@ -991,7 +1109,6 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
                 }
             }
 
-            RecomputeCanMergeAll();
         }
         catch (OperationCanceledException) { }
         catch { /* best-effort */ }
@@ -1016,7 +1133,6 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
                 existing.WorktreeState = child.Worktree?.State ?? ClaudeDo.Data.Models.WorktreeState.Active;
             }
 
-            RecomputeCanMergeAll();
         }
         catch { /* best-effort */ }
     }
@@ -1038,54 +1154,12 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             row.Status = child.Status;
             row.RoadblockCount = child.RoadblockCount;
             row.WorktreeState = child.Worktree?.State ?? ClaudeDo.Data.Models.WorktreeState.Active;
-            RecomputeCanMergeAll();
-            MergeAllCommand.NotifyCanExecuteChanged();
             ReviewCombinedDiffCommand.NotifyCanExecuteChanged();
+            NotifyAttention();
         }
         catch { /* best-effort */ }
     }
 
-    internal void RecomputeCanMergeAll()
-    {
-        // Improvement parent: merge is allowed once every child is terminal. The
-        // orchestrator folds the parent's own branch and skips failed/cancelled children.
-        if (ChildOutcomes.Count > 0)
-        {
-            var unfinished = ChildOutcomes.Count(c =>
-                c.Status != ClaudeDo.Data.Models.TaskStatus.Done
-                && c.Status != ClaudeDo.Data.Models.TaskStatus.Failed
-                && c.Status != ClaudeDo.Data.Models.TaskStatus.Cancelled);
-            if (unfinished > 0)
-            {
-                CanMergeAll = false;
-                MergeAllDisabledReason = $"{unfinished} improvement(s) not finished";
-                return;
-            }
-            CanMergeAll = true;
-            MergeAllDisabledReason = null;
-            return;
-        }
-
-        var notDone = Subtasks.Count(c => c.Status != ClaudeDo.Data.Models.TaskStatus.Done);
-        if (notDone > 0)
-        {
-            CanMergeAll = false;
-            MergeAllDisabledReason = $"{notDone} subtask(s) not done";
-            return;
-        }
-        var badWt = Subtasks.FirstOrDefault(c =>
-            c.WorktreeState == ClaudeDo.Data.Models.WorktreeState.Discarded ||
-            c.WorktreeState == ClaudeDo.Data.Models.WorktreeState.Kept);
-        if (badWt is not null)
-        {
-            CanMergeAll = false;
-            MergeAllDisabledReason = "at least one worktree was discarded/kept";
-            return;
-        }
-        CanMergeAll = true;
-        MergeAllDisabledReason = null;
-    }
-
     [RelayCommand(CanExecute = nameof(CanReviewDiff))]
     private async System.Threading.Tasks.Task ReviewCombinedDiffAsync()
     {
@@ -1097,20 +1171,6 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
 
     private bool CanReviewDiff() => (Task?.IsPlanningParent == true && Subtasks.Any()) || HasChildOutcomes;
 
-    [RelayCommand(CanExecute = nameof(CanMergeAll))]
-    private async System.Threading.Tasks.Task MergeAllAsync()
-    {
-        MergeAllError = null;
-        try
-        {
-            await _worker.MergeAllPlanningAsync(Task!.Id, SelectedMergeTarget ?? "main");
-        }
-        catch (Exception ex)
-        {
-            MergeAllError = ex.Message;
-        }
-    }
-
     private async System.Threading.Tasks.Task RefreshWorktreeAsync(string taskId)
     {
         try
@@ -1119,11 +1179,14 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
             var entity = await ctx.Tasks
                 .AsNoTracking()
                 .Include(t => t.Worktree)
+                .Include(t => t.List)
                 .FirstOrDefaultAsync(t => t.Id == taskId);
             if (entity == null || Task?.Id != taskId) return;
 
+            _listWorkingDir = entity.List?.WorkingDir;
             WorktreePath = entity.Worktree?.Path;
             WorktreeBaseCommit = entity.Worktree?.BaseCommit;
+            WorktreeHeadCommit = entity.Worktree?.HeadCommit;
             WorktreeStateLabel = entity.Worktree?.State.ToString();
             BranchLine = entity.Worktree is { } w ? $"{w.BranchName} ← main" : null;
             AgentState = StatusToStateKey(entity.Status);
@@ -1158,45 +1221,56 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         MergePreviewText = text; MergeIsClean = clean; MergeIsConflict = conflict;
     }
 
-    [RelayCommand]
-    private async System.Threading.Tasks.Task MergeAsync()
-    {
-        if (Task is null || WorktreePath is null || !_worker.IsConnected) return;
-        try
-        {
-            var result = await _worker.MergeTaskAsync(Task.Id, SelectedMergeTarget ?? "", false, "Merge task");
-            if (result.Status == "conflict")
-            {
-                var (text, _, _) = MergePreviewPresenter.Describe(
-                    new MergePreviewDto("conflict", result.ConflictFiles, 0));
-                MergePreviewText = text; MergeIsClean = false; MergeIsConflict = true;
-            }
-            else
-            {
-                await RefreshMergePreviewAsync();
-            }
-        }
-        catch { /* broadcast reconciles */ }
-    }
-
     [RelayCommand(CanExecute = nameof(CanOpenDiff))]
     private async System.Threading.Tasks.Task OpenDiffAsync()
     {
-        if (WorktreePath == null || ShowDiffModal == null) return;
-        var diffVm = new DiffModalViewModel(_services.GetRequiredService<ClaudeDo.Data.Git.GitService>())
+        if (ShowDiffModal == null) return;
+        var git = _services.GetRequiredService<ClaudeDo.Data.Git.GitService>();
+
+        // Active worktree on disk → diff the worktree live (and allow merging from it).
+        var hasLiveWorktree =
+            WorktreePath != null
+            && WorktreeStateLabel == "Active"
+            && System.IO.Directory.Exists(WorktreePath);
+
+        DiffModalViewModel diffVm;
+        if (hasLiveWorktree)
         {
-            WorktreePath = WorktreePath,
-            BaseRef = WorktreeBaseCommit,
-            TaskId = Task?.Id,
-            TaskTitle = Task?.Title ?? "",
-            ShowMergeModal = ShowMergeModal,
-            ResolveMergeVm = () => _services.GetRequiredService<MergeModalViewModel>(),
-        };
+            diffVm = new DiffModalViewModel(git)
+            {
+                WorktreePath = WorktreePath!,
+                BaseRef = WorktreeBaseCommit,
+                TaskId = Task?.Id,
+                TaskTitle = Task?.Title ?? "",
+                ShowMergeModal = ShowMergeModal,
+                ResolveMergeVm = () => _services.GetRequiredService<MergeModalViewModel>(),
+            };
+        }
+        else if (CanDiffMergedRange)
+        {
+            // Worktree is gone (merged/discarded) but the commits survive on the
+            // target branch — diff the captured base..head range in the repo. No
+            // merge action: the work is already integrated.
+            diffVm = new DiffModalViewModel(git)
+            {
+                WorktreePath = _listWorkingDir!,
+                BaseRef = WorktreeBaseCommit,
+                HeadCommit = WorktreeHeadCommit,
+                FromCommitRange = true,
+                TaskId = Task?.Id,
+                TaskTitle = Task?.Title ?? "",
+            };
+        }
+        else return;
+
         await diffVm.LoadAsync();
         await ShowDiffModal(diffVm);
     }
 
-    private bool CanOpenDiff() => WorktreePath != null;
+    private bool CanDiffMergedRange =>
+        WorktreeBaseCommit != null && WorktreeHeadCommit != null && _listWorkingDir != null;
+
+    private bool CanOpenDiff() => WorktreePath != null || CanDiffMergedRange;
 
     [RelayCommand(CanExecute = nameof(CanOpenWorktree))]
     private void OpenWorktree()
@@ -1225,9 +1299,11 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         OpenDiffCommand.NotifyCanExecuteChanged();
         OpenWorktreeCommand.NotifyCanExecuteChanged();
         NotifySessionSections();
-        OnPropertyChanged(nameof(ShowSingleMerge));
     }
 
+    partial void OnWorktreeHeadCommitChanged(string? value) =>
+        OpenDiffCommand.NotifyCanExecuteChanged();
+
     partial void OnTaskChanged(TaskRowViewModel? value) => NotifySessionSections();
 
     [RelayCommand]
@@ -1364,8 +1440,10 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
     [RelayCommand]
     private async System.Threading.Tasks.Task StopAsync()
     {
-        if (Task == null) return;
-        await _worker.CancelTaskAsync(Task.Id);
+        if (Task == null || !IsRunning) return;
+        if (!_worker.IsConnected) return;
+        try { await _worker.CancelTaskAsync(Task.Id); }
+        catch { /* offline */ }
     }
 
     [RelayCommand(CanExecute = nameof(CanEnqueue))]
@@ -1447,15 +1525,30 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
         if (Task is null || !_worker.IsConnected) return;
         try
         {
+            var hasChildren = Subtasks.Count > 0 || ChildOutcomes.Count > 0;
             var result = await _worker.ApproveReviewAsync(Task.Id, SelectedMergeTarget ?? "");
-            if (result?.Status == "conflict")
+            if (!hasChildren && result?.Status == "conflict")
             {
-                var (text, _, _) = MergePreviewPresenter.Describe(
-                    new MergePreviewDto("conflict", result.ConflictFiles, 0));
-                MergePreviewText = text; MergeIsClean = false; MergeIsConflict = true;
+                if (RequestConflictResolution is not null)
+                {
+                    await RequestConflictResolution(Task.Id, SelectedMergeTarget ?? "");
+                }
+                else
+                {
+                    var (text, _, _) = MergePreviewPresenter.Describe(
+                        new MergePreviewDto("conflict", result.ConflictFiles, 0));
+                    MergePreviewText = text; MergeIsClean = false; MergeIsConflict = true;
+                }
             }
+            // hasChildren: conflicts arrive via PlanningMergeConflictEvent → conflict dialog
+        }
+        catch (Exception ex)
+        {
+            // A real failure (e.g. a child still needs attention, so the unit can't
+            // be approved yet) must not vanish — tell the user why nothing happened.
+            if (ShowErrorAsync != null)
+                await ShowErrorAsync(ex.Message);
         }
-        catch { /* stale review action; broadcast reconciles */ }
     }
 
     [RelayCommand]

src/ClaudeDo.Ui/ViewModels/Islands/ListsIslandViewModel.cs

@@ -16,7 +16,7 @@ namespace ClaudeDo.Ui.ViewModels.Islands;
 
 public enum ListKind { Smart, Virtual, User }
 
-public sealed partial class ListsIslandViewModel : ViewModelBase
+public sealed partial class ListsIslandViewModel : ViewModelBase, IDisposable
 {
     private readonly IDbContextFactory<ClaudeDoDbContext> _dbFactory;
     private readonly IServiceProvider? _services;
@@ -141,6 +141,8 @@ public sealed partial class ListsIslandViewModel : ViewModelBase
     public string MachineNameLocal => Loc.T("vm.lists.localSuffix", MachineName);
     public string UserInitials { get; }
 
+    private readonly EventHandler _langChangedHandler;
+
     public ListsIslandViewModel(IDbContextFactory<ClaudeDoDbContext> dbFactory, IServiceProvider? services = null, WorkerClient? worker = null)
     {
         _dbFactory = dbFactory;
@@ -163,7 +165,13 @@ public sealed partial class ListsIslandViewModel : ViewModelBase
             _worker.ConnectionRestoredEvent += ()                      => _ = RefreshCountsAsync();
         }
 
-        Loc.LanguageChanged += (_, _) => RefreshLocalizedLabels();
+        _langChangedHandler = (_, _) => RefreshLocalizedLabels();
+        Loc.LanguageChanged += _langChangedHandler;
+    }
+
+    public void Dispose()
+    {
+        Loc.LanguageChanged -= _langChangedHandler;
     }
 
     private static string? SmartListNameKey(string id) => id switch

src/ClaudeDo.Ui/ViewModels/Islands/TasksIslandViewModel.cs

@@ -14,7 +14,7 @@ using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
 
 namespace ClaudeDo.Ui.ViewModels.Islands;
 
-public sealed partial class TasksIslandViewModel : ViewModelBase
+public sealed partial class TasksIslandViewModel : ViewModelBase, IDisposable
 {
     private readonly IDbContextFactory<ClaudeDoDbContext> _dbFactory;
     private readonly IWorkerClient? _worker;
@@ -71,6 +71,8 @@ public sealed partial class TasksIslandViewModel : ViewModelBase
 
     public Func<UnfinishedPlanningModalViewModel, Task>? ShowUnfinishedPlanningModal { get; set; }
 
+    private readonly EventHandler _langChangedHandler;
+
     public TasksIslandViewModel(IDbContextFactory<ClaudeDoDbContext> dbFactory, IWorkerClient? worker = null)
     {
         _dbFactory = dbFactory;
@@ -85,7 +87,13 @@ public sealed partial class TasksIslandViewModel : ViewModelBase
             _worker.RefineStartedEvent     += OnRefineStarted;
             _worker.RefineFinishedEvent    += OnRefineFinished;
         }
-        Loc.LanguageChanged += (_, _) => RefreshLocalizedText();
+        _langChangedHandler = (_, _) => RefreshLocalizedText();
+        Loc.LanguageChanged += _langChangedHandler;
+    }
+
+    public void Dispose()
+    {
+        Loc.LanguageChanged -= _langChangedHandler;
     }
 
     private void RefreshLocalizedText()
@@ -178,7 +186,7 @@ public sealed partial class TasksIslandViewModel : ViewModelBase
         ListKind.Smart   when list.Id == "smart:my-day"    => t.IsMyDay,
         ListKind.Smart   when list.Id == "smart:important" => t.IsStarred,
         ListKind.Smart   when list.Id == "smart:planned"   => t.ScheduledFor != null,
-        ListKind.Virtual when list.Id == "virtual:review"  => t.Status == TaskStatus.Done && t.Worktree?.State == WorktreeState.Active && t.ParentTaskId == null,
+        ListKind.Virtual when list.Id == "virtual:review"  => t.Status == TaskStatus.WaitingForReview,
         ListKind.User                                       => $"user:{t.ListId}" == list.Id,
         _                                                   => false,
     };

src/ClaudeDo.Ui/ViewModels/IslandsShellViewModel.cs

@@ -15,7 +15,7 @@ using Microsoft.EntityFrameworkCore;
 
 namespace ClaudeDo.Ui.ViewModels;
 
-public sealed partial class IslandsShellViewModel : ViewModelBase
+public sealed partial class IslandsShellViewModel : ViewModelBase, IDisposable
 {
     public ListsIslandViewModel? Lists { get; }
     public TasksIslandViewModel? Tasks { get; }
@@ -44,6 +44,20 @@ public sealed partial class IslandsShellViewModel : ViewModelBase
     // Set by MainWindow to open the conflict resolution dialog.
     public Func<ConflictResolutionViewModel, Task>? ShowConflictDialog { get; set; }
 
+    // Layer C seam: composition root sets the factory; MainWindow sets the dialog opener.
+    // The integrator connects Layer A/B's RequestConflictResolution(taskId, target) to this method.
+    public Func<string, ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel>? ConflictResolverFactory { get; set; }
+    public Func<ClaudeDo.Ui.ViewModels.Conflicts.ConflictResolverViewModel, Task>? ShowConflictResolver { get; set; }
+
+    public async Task RequestConflictResolutionAsync(string taskId, string targetBranch)
+    {
+        if (ConflictResolverFactory is null || ShowConflictResolver is null) return;
+        var vm = ConflictResolverFactory(taskId);
+        var hasConflicts = await vm.OpenAsync(targetBranch);
+        if (hasConflicts)
+            await ShowConflictResolver(vm);
+    }
+
     // Set by MainWindow to open the About dialog.
     public Func<AboutModalViewModel, Task>? ShowAboutModal { get; set; }
 
@@ -140,21 +154,23 @@ public sealed partial class IslandsShellViewModel : ViewModelBase
         if (ShowConflictDialog == null || _dbFactory == null) return;
 
         string subtaskTitle = subtaskId;
-        string worktreePath = System.Environment.CurrentDirectory;
-        string targetBranch = Worker?.LastMergeAllTarget ?? "main";
+        // The conflict lives in the list's working dir (the repo being merged into),
+        // not the subtask worktree. VS Code must open this folder to show the merge UI.
+        string repoDirectory = System.Environment.CurrentDirectory;
+        string targetBranch = Worker?.LastApproveTarget ?? "main";
 
         try
         {
             await using var ctx = await _dbFactory.CreateDbContextAsync();
             var entity = await ctx.Tasks
-                .Include(t => t.Worktree)
+                .Include(t => t.List)
                 .AsNoTracking()
                 .FirstOrDefaultAsync(t => t.Id == subtaskId);
             if (entity != null)
             {
                 subtaskTitle = entity.Title;
-                if (entity.Worktree?.Path is { } p)
-                    worktreePath = p;
+                if (entity.List?.WorkingDir is { } dir && !string.IsNullOrWhiteSpace(dir))
+                    repoDirectory = dir;
             }
         }
         catch { /* Non-fatal: fall back to subtaskId and cwd */ }
@@ -165,7 +181,7 @@ public sealed partial class IslandsShellViewModel : ViewModelBase
             subtaskTitle,
             targetBranch,
             conflictedFiles,
-            worktreePath);
+            repoDirectory);
 
         await ShowConflictDialog(vm);
     }
@@ -213,6 +229,7 @@ public sealed partial class IslandsShellViewModel : ViewModelBase
             _ = Lists.RefreshCountsAsync();
             return System.Threading.Tasks.Task.CompletedTask;
         };
+        Details.RequestConflictResolution = RequestConflictResolutionAsync;
         Worker.PropertyChanged += (_, e) =>
         {
             if (e.PropertyName is nameof(WorkerClient.IsConnected) or nameof(WorkerClient.IsReconnecting))
@@ -253,6 +270,16 @@ public sealed partial class IslandsShellViewModel : ViewModelBase
         });
     }
 
+    public void Dispose()
+    {
+        _clearTimer.Stop();
+        _clearTimer.Dispose();
+        _connectTimer.Stop();
+        _connectTimer.Dispose();
+        _primeStatusTimer.Stop();
+        _primeStatusTimer.Dispose();
+    }
+
     private void RefreshBannerFromStatus()
     {
         switch (_updateCheck.LastCheckStatus)

src/ClaudeDo.Ui/ViewModels/Modals/DiffModalViewModel.cs

@@ -8,6 +8,8 @@ namespace ClaudeDo.Ui.ViewModels.Modals;
 
 public enum DiffLineKind { Add, Del, Ctx, File }
 
+public enum DiffFileStatus { Modified, Added, Deleted, Renamed }
+
 public sealed class DiffLineViewModel
 {
     public required DiffLineKind Kind { get; init; }
@@ -32,10 +34,27 @@ public sealed class DiffLineViewModel
 
 public sealed class DiffFileViewModel
 {
-    public required string Path { get; init; }
+    public required string Path { get; set; }
+    public string? OldPath { get; set; }
+    public DiffFileStatus Status { get; set; } = DiffFileStatus.Modified;
+    public bool IsBinary { get; set; }
     public int Additions { get; set; }
     public int Deletions { get; set; }
     public ObservableCollection<DiffLineViewModel> Lines { get; } = new();
+
+    /// Single-letter badge for the file's change kind (A/M/D/R).
+    public string StatusCode => Status switch
+    {
+        DiffFileStatus.Added    => "A",
+        DiffFileStatus.Deleted  => "D",
+        DiffFileStatus.Renamed  => "R",
+        _                       => "M",
+    };
+
+    public bool HasLines => Lines.Count > 0;
+
+    /// A text file that produced no diff hunks (e.g. a newly added empty file).
+    public bool IsEmptyContent => !IsBinary && Lines.Count == 0;
 }
 
 public sealed partial class DiffModalViewModel : ViewModelBase
@@ -44,6 +63,11 @@ public sealed partial class DiffModalViewModel : ViewModelBase
 
     public required string WorktreePath { get; init; }
     public string? BaseRef { get; init; }
+    /// When set together with <see cref="FromCommitRange"/>, the diff is computed as
+    /// <c>BaseRef..HeadCommit</c> inside <see cref="WorktreePath"/> (used as the repo
+    /// dir) — lets a merged task's diff be viewed after its worktree is gone.
+    public string? HeadCommit { get; init; }
+    public bool FromCommitRange { get; init; }
     public string? TaskId { get; init; }
     public string TaskTitle { get; init; } = "";
     public Func<MergeModalViewModel, Task>? ShowMergeModal { get; set; }
@@ -77,6 +101,8 @@ public sealed partial class DiffModalViewModel : ViewModelBase
         var vm = ResolveMergeVm();
         await vm.InitializeAsync(TaskId, TaskTitle);
         await ShowMergeModal(vm);
+        // The diff is stale once the worktree has been merged away — close it too.
+        if (vm.Merged) CloseAction?.Invoke();
     }
 
     public async Task LoadAsync(CancellationToken ct = default)
@@ -87,9 +113,11 @@ public sealed partial class DiffModalViewModel : ViewModelBase
         string raw;
         try
         {
-            raw = BaseRef is not null
-                ? await _git.GetBranchDiffAsync(WorktreePath, BaseRef, ct)
-                : await _git.GetDiffAsync(WorktreePath, ct);
+            raw = FromCommitRange && BaseRef is not null && HeadCommit is not null
+                ? await _git.GetCommitRangeDiffAsync(WorktreePath, BaseRef, HeadCommit, ct)
+                : BaseRef is not null
+                    ? await _git.GetBranchDiffAsync(WorktreePath, BaseRef, ct)
+                    : await _git.GetDiffAsync(WorktreePath, ct);
         }
         catch (Exception ex)
         {

src/ClaudeDo.Ui/ViewModels/Modals/MergeModalViewModel.cs

@@ -28,6 +28,10 @@ public sealed partial class MergeModalViewModel : ViewModelBase
 
     public Action? CloseAction { get; set; }
 
+    /// True once a merge has succeeded — lets the caller (e.g. the diff window)
+    /// close itself after this modal closes.
+    public bool Merged { get; private set; }
+
     public MergeModalViewModel(WorkerClient worker)
     {
         _worker = worker;
@@ -80,6 +84,7 @@ public sealed partial class MergeModalViewModel : ViewModelBase
             switch (result.Status)
             {
                 case "merged":
+                    Merged = true;
                     SuccessMessage = result.ErrorMessage is not null
                         ? $"Merged with warning: {result.ErrorMessage}"
                         : Loc.T("vm.merge.merged");

src/ClaudeDo.Ui/ViewModels/Modals/UnifiedDiffParser.cs

@@ -27,6 +27,36 @@ public static class UnifiedDiffParser
 
             if (current == null) continue;
 
+            // File-level metadata that carries the change kind.
+            if (line.StartsWith("new file", StringComparison.Ordinal))
+            {
+                current.Status = DiffFileStatus.Added;
+                continue;
+            }
+            if (line.StartsWith("deleted file", StringComparison.Ordinal))
+            {
+                current.Status = DiffFileStatus.Deleted;
+                continue;
+            }
+            if (line.StartsWith("rename from ", StringComparison.Ordinal))
+            {
+                current.Status = DiffFileStatus.Renamed;
+                current.OldPath = line["rename from ".Length..];
+                continue;
+            }
+            if (line.StartsWith("rename to ", StringComparison.Ordinal))
+            {
+                current.Status = DiffFileStatus.Renamed;
+                current.Path = line["rename to ".Length..];
+                continue;
+            }
+            if (line.StartsWith("Binary files", StringComparison.Ordinal) ||
+                line.StartsWith("GIT binary patch", StringComparison.Ordinal))
+            {
+                current.IsBinary = true;
+                continue;
+            }
+
             if (line.StartsWith("@@ ", StringComparison.Ordinal))
             {
                 // e.g. "@@ -10,7 +10,9 @@"
@@ -34,13 +64,15 @@ public static class UnifiedDiffParser
                 continue;
             }
 
-            // Skip diff metadata lines
+            // Skip remaining diff metadata lines
             if (line.StartsWith("--- ", StringComparison.Ordinal) ||
                 line.StartsWith("+++ ", StringComparison.Ordinal) ||
                 line.StartsWith("index ", StringComparison.Ordinal) ||
-                line.StartsWith("new file", StringComparison.Ordinal) ||
-                line.StartsWith("deleted file", StringComparison.Ordinal) ||
-                line.StartsWith("Binary ", StringComparison.Ordinal))
+                line.StartsWith("old mode", StringComparison.Ordinal) ||
+                line.StartsWith("new mode", StringComparison.Ordinal) ||
+                line.StartsWith("similarity index", StringComparison.Ordinal) ||
+                line.StartsWith("copy from", StringComparison.Ordinal) ||
+                line.StartsWith("copy to", StringComparison.Ordinal))
                 continue;
 
             if (line.StartsWith('+'))

src/ClaudeDo.Ui/ViewModels/Modals/WorktreeModalViewModel.cs

@@ -5,14 +5,6 @@ using ClaudeDo.Data.Git;
 
 namespace ClaudeDo.Ui.ViewModels.Modals;
 
-public enum WorktreeDiffLineKind { Header, Hunk, Added, Removed, Context }
-
-public sealed partial class WorktreeDiffLineViewModel : ViewModelBase
-{
-    public required string Text { get; init; }
-    public required WorktreeDiffLineKind Kind { get; init; }
-}
-
 public sealed partial class WorktreeNodeViewModel : ViewModelBase
 {
     public required string Name { get; init; }
@@ -28,7 +20,7 @@ public sealed partial class WorktreeModalViewModel : ViewModelBase
     private readonly GitService _git;
 
     public ObservableCollection<WorktreeNodeViewModel> Root { get; } = new();
-    public ObservableCollection<WorktreeDiffLineViewModel> SelectedFileDiffLines { get; } = new();
+    public ObservableCollection<DiffLineViewModel> SelectedFileDiffLines { get; } = new();
 
     [ObservableProperty] private string _worktreePath = "";
     [ObservableProperty] private string? _baseCommit;
@@ -64,19 +56,8 @@ public sealed partial class WorktreeModalViewModel : ViewModelBase
             return;
         }
 
-        foreach (var line in diff.Split('\n'))
-        {
-            var kind = line switch
-            {
-                _ when line.StartsWith("+++") || line.StartsWith("---") => WorktreeDiffLineKind.Header,
-                _ when line.StartsWith("@@")                            => WorktreeDiffLineKind.Hunk,
-                _ when line.StartsWith('+')                             => WorktreeDiffLineKind.Added,
-                _ when line.StartsWith('-')                             => WorktreeDiffLineKind.Removed,
-                _ when line.StartsWith("diff ") || line.StartsWith("index ") || line.StartsWith("\\ ") => WorktreeDiffLineKind.Header,
-                _                                                       => WorktreeDiffLineKind.Context,
-            };
-            SelectedFileDiffLines.Add(new WorktreeDiffLineViewModel { Text = line, Kind = kind });
-        }
+        foreach (var line in UnifiedDiffParser.Flatten(UnifiedDiffParser.Parse(diff)))
+            SelectedFileDiffLines.Add(line);
     }
 
     [RelayCommand]

src/ClaudeDo.Ui/ViewModels/Modals/WorktreesOverviewModalViewModel.cs

@@ -12,6 +12,8 @@ using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
 
 namespace ClaudeDo.Ui.ViewModels.Modals;
 
+public enum BatchMergeOutcome { None, Merging, Merged, Conflict, Blocked, Failed }
+
 public sealed partial class WorktreeOverviewRowViewModel : ViewModelBase
 {
     [ObservableProperty] private string _taskId = "";
@@ -27,6 +29,14 @@ public sealed partial class WorktreeOverviewRowViewModel : ViewModelBase
     [ObservableProperty][NotifyPropertyChangedFor(nameof(AgeText))] private DateTime _createdAt;
     [ObservableProperty] private bool _pathExistsOnDisk;
     [ObservableProperty] private bool _isSelected;
+    [ObservableProperty] private bool _isChecked;
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(IsConflict))]
+    [NotifyPropertyChangedFor(nameof(HasOutcome))]
+    private BatchMergeOutcome _mergeOutcome;
+
+    public bool IsConflict => MergeOutcome == BatchMergeOutcome.Conflict;
+    public bool HasOutcome => MergeOutcome != BatchMergeOutcome.None;
 
     public string AgeText => FormatAge(DateTime.UtcNow - CreatedAt);
     public bool IsActive => State == WorktreeState.Active;
@@ -59,9 +69,18 @@ public sealed partial class WorktreesOverviewModalViewModel : ViewModelBase
     [ObservableProperty] private bool _isBusy;
     [ObservableProperty] private string? _statusMessage;
     [ObservableProperty] private WorktreeOverviewRowViewModel? _selectedRow;
+    [ObservableProperty][NotifyCanExecuteChangedFor(nameof(MergeAllCommand))] private string? _selectedTarget;
+    [ObservableProperty][NotifyCanExecuteChangedFor(nameof(MergeAllCommand))] private int _selectedCount;
+    [ObservableProperty][NotifyCanExecuteChangedFor(nameof(MergeAllCommand))] private bool _isMerging;
+    [ObservableProperty] private string? _batchProgress;
 
     public ObservableCollection<WorktreeOverviewRowViewModel> Rows { get; } = new();
     public ObservableCollection<WorktreesGroupViewModel> Groups { get; } = new();
+    public ObservableCollection<string> MergeTargets { get; } = new();
+    public ObservableCollection<WorktreeOverviewRowViewModel> ConflictRows { get; } = new();
+
+    /// Inert seam wired by the integrator to Layer C's resolver at merge time. (taskId, targetBranch)
+    public Func<string, string, Task>? RequestConflictResolution { get; set; }
 
     public Action? CloseAction { get; set; }
     public Action<WorktreeModalViewModel>? ShowDiffAction { get; set; }
@@ -106,20 +125,24 @@ public sealed partial class WorktreesOverviewModalViewModel : ViewModelBase
 
             Rows.Clear();
             Groups.Clear();
+            ConflictRows.Clear();
+            SelectedCount = 0;
+            BatchProgress = null;
             if (IsGlobal)
             {
                 foreach (var grp in ordered.GroupBy(r => (r.ListId, r.ListName))
                                             .OrderBy(g => g.Key.ListName, StringComparer.OrdinalIgnoreCase))
                 {
                     var group = new WorktreesGroupViewModel { ListId = grp.Key.ListId, ListName = grp.Key.ListName };
-                    foreach (var row in grp) group.Rows.Add(row);
+                    foreach (var row in grp) { HookRow(row); group.Rows.Add(row); }
                     Groups.Add(group);
                 }
             }
             else
             {
-                foreach (var row in ordered) Rows.Add(row);
+                foreach (var row in ordered) { HookRow(row); Rows.Add(row); }
             }
+            await LoadMergeTargetsAsync();
         }
         finally
         {
@@ -255,4 +278,125 @@ public sealed partial class WorktreesOverviewModalViewModel : ViewModelBase
         Path = d.Path, BranchName = d.BranchName, BaseCommit = d.BaseCommit, State = d.State,
         DiffStat = d.DiffStat, CreatedAt = d.CreatedAt, PathExistsOnDisk = d.PathExistsOnDisk,
     };
+
+    public IEnumerable<WorktreeOverviewRowViewModel> AllRows =>
+        IsGlobal ? Groups.SelectMany(g => g.Rows) : Rows;
+
+    private void HookRow(WorktreeOverviewRowViewModel row)
+    {
+        row.PropertyChanged += (_, e) =>
+        {
+            if (e.PropertyName is nameof(WorktreeOverviewRowViewModel.IsChecked)
+                               or nameof(WorktreeOverviewRowViewModel.State))
+                RecomputeSelected();
+        };
+    }
+
+    private void RecomputeSelected() =>
+        SelectedCount = AllRows.Count(r => r.IsChecked && r.IsActive);
+
+    // Test seam: adds a row to the flat list with selection tracking wired up.
+    internal void AddRowForTest(WorktreeOverviewRowViewModel row)
+    {
+        HookRow(row);
+        Rows.Add(row);
+    }
+
+    private async Task LoadMergeTargetsAsync()
+    {
+        var anchor = AllRows.FirstOrDefault(r => r.IsActive);
+        if (anchor is null) { MergeTargets.Clear(); SelectedTarget = null; return; }
+        try
+        {
+            var targets = await _worker.GetMergeTargetsAsync(anchor.TaskId);
+            MergeTargets.Clear();
+            if (targets is null) { SelectedTarget = null; return; }
+            foreach (var b in targets.LocalBranches) MergeTargets.Add(b);
+            SelectedTarget = MergeTargets.Contains(targets.DefaultBranch)
+                ? targets.DefaultBranch
+                : MergeTargets.FirstOrDefault();
+        }
+        catch { MergeTargets.Clear(); SelectedTarget = null; }
+    }
+
+    private bool CanMergeAll() => !IsMerging && SelectedCount > 0 && !string.IsNullOrWhiteSpace(SelectedTarget);
+
+    [RelayCommand(CanExecute = nameof(CanMergeAll))]
+    private Task MergeAll() => MergeSelectedAsync(_worker.MergeTaskAsync);
+
+    [RelayCommand]
+    private void ResolveConflict(WorktreeOverviewRowViewModel? row)
+    {
+        if (row is null) return;
+        RequestConflictResolution?.Invoke(row.TaskId, SelectedTarget ?? "");
+    }
+
+    [RelayCommand]
+    private void ToggleSelectAll()
+    {
+        var actives = AllRows.Where(r => r.IsActive).ToList();
+        var allChecked = actives.Count > 0 && actives.All(r => r.IsChecked);
+        foreach (var r in actives) r.IsChecked = !allChecked;
+    }
+
+    public async Task MergeSelectedAsync(
+        Func<string, string, bool, string, Task<MergeResultDto>> mergeFn,
+        CancellationToken ct = default)
+    {
+        var target = SelectedTarget;
+        if (string.IsNullOrWhiteSpace(target)) return;
+
+        var selected = AllRows.Where(r => r.IsChecked && r.IsActive).ToList();
+        if (selected.Count == 0) return;
+
+        IsMerging = true;
+        ConflictRows.Clear();
+        var done = 0;
+        try
+        {
+            foreach (var row in selected)
+            {
+                ct.ThrowIfCancellationRequested();
+                row.MergeOutcome = BatchMergeOutcome.Merging;
+                BatchProgress = Loc.T("vm.worktreesOverview.batchProgress", ++done, selected.Count);
+
+                MergeResultDto result;
+                try
+                {
+                    result = await mergeFn(row.TaskId, target!, false,
+                        Loc.T("vm.merge.commitMessage", row.TaskTitle));
+                }
+                catch
+                {
+                    row.MergeOutcome = BatchMergeOutcome.Failed;
+                    continue;
+                }
+
+                switch (result.Status)
+                {
+                    case "merged":
+                        row.MergeOutcome = BatchMergeOutcome.Merged;
+                        row.State = WorktreeState.Merged;
+                        row.IsChecked = false;
+                        break;
+                    case "conflict":
+                        row.MergeOutcome = BatchMergeOutcome.Conflict;
+                        ConflictRows.Add(row);
+                        break;
+                    case "blocked":
+                        row.MergeOutcome = BatchMergeOutcome.Blocked;
+                        break;
+                    default:
+                        row.MergeOutcome = BatchMergeOutcome.Failed;
+                        break;
+                }
+            }
+            BatchProgress = Loc.T("vm.worktreesOverview.batchDone",
+                selected.Count(r => r.MergeOutcome == BatchMergeOutcome.Merged), ConflictRows.Count);
+        }
+        finally
+        {
+            IsMerging = false;
+        }
+    }
 }

src/ClaudeDo.Ui/ViewModels/Planning/ConflictResolutionViewModel.cs

@@ -10,7 +10,10 @@ public sealed partial class ConflictResolutionViewModel : ObservableObject
 {
     private readonly IWorkerClient _worker;
     private readonly string _planningTaskId;
-    private readonly string _worktreePath;
+    // The repository directory that is currently mid-merge (the list's working dir),
+    // NOT the subtask worktree. Opening this folder is what makes VS Code show its
+    // merge-conflict resolution UI.
+    private readonly string _repoDirectory;
 
     public string SubtaskTitle { get; }
     public string TargetBranch { get; }
@@ -29,11 +32,11 @@ public sealed partial class ConflictResolutionViewModel : ObservableObject
         string subtaskTitle,
         string targetBranch,
         IReadOnlyList<string> conflictedFiles,
-        string worktreePath)
+        string repoDirectory)
     {
         _worker = worker;
         _planningTaskId = planningTaskId;
-        _worktreePath = worktreePath;
+        _repoDirectory = repoDirectory;
         SubtaskTitle = subtaskTitle;
         TargetBranch = targetBranch;
         ConflictedFiles = conflictedFiles;
@@ -44,12 +47,13 @@ public sealed partial class ConflictResolutionViewModel : ObservableObject
     {
         try
         {
-            var args = string.Join(" ", ConflictedFiles.Select(f => $"\"{f}\""));
+            // Open the folder that is mid-merge so VS Code shows the Source Control
+            // merge-conflict UI for every conflicted file. Opening individual files
+            // gives only a plain editor with no conflict resolution affordances.
             Process.Start(new ProcessStartInfo
             {
                 FileName = "code",
-                Arguments = args,
-                WorkingDirectory = _worktreePath,
+                Arguments = $"\"{_repoDirectory}\"",
                 UseShellExecute = true,
             });
             VsCodeError = null;

src/ClaudeDo.Ui/Views/Conflicts/ConflictResolverView.axaml

@@ -0,0 +1,82 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:ClaudeDo.Ui.ViewModels.Conflicts"
+        xmlns:ctl="using:ClaudeDo.Ui.Views.Controls"
+        xmlns:loc="using:ClaudeDo.Ui.Localization"
+        x:DataType="vm:ConflictResolverViewModel"
+        x:Class="ClaudeDo.Ui.Views.Conflicts.ConflictResolverView"
+        Title="{loc:Tr conflictResolver.windowTitle}"
+        Width="760" Height="640" MinWidth="560" MinHeight="420"
+        CanResize="True"
+        WindowDecorations="BorderOnly"
+        ExtendClientAreaToDecorationsHint="True"
+        ExtendClientAreaTitleBarHeightHint="-1"
+        WindowStartupLocation="CenterOwner"
+        Background="{DynamicResource SurfaceBrush}">
+
+  <Window.KeyBindings>
+    <KeyBinding Gesture="Escape" Command="{Binding AbortCommand}"/>
+  </Window.KeyBindings>
+
+  <ctl:ModalShell Title="{loc:Tr conflictResolver.modalTitle}" CloseCommand="{Binding AbortCommand}">
+    <ctl:ModalShell.Footer>
+      <StackPanel Orientation="Horizontal" Spacing="8"
+                  HorizontalAlignment="Right" VerticalAlignment="Center">
+        <Button Classes="btn" Content="{loc:Tr conflictResolver.continue}"
+                Command="{Binding ContinueCommand}" IsEnabled="{Binding CanContinue}"/>
+        <Button Classes="btn" Content="{loc:Tr conflictResolver.abort}" Command="{Binding AbortCommand}"/>
+      </StackPanel>
+    </ctl:ModalShell.Footer>
+
+    <Grid RowDefinitions="Auto,*" Margin="16,12">
+      <TextBlock Grid.Row="0" Classes="meta" Margin="0,0,0,8"
+                 Text="{loc:Tr conflictResolver.loading}"
+                 IsVisible="{Binding IsBusy}"/>
+      <TextBlock Grid.Row="0" Classes="meta" Foreground="{DynamicResource BloodBrush}"
+                 Text="{Binding Error}" TextWrapping="Wrap"
+                 IsVisible="{Binding Error, Converter={x:Static ObjectConverters.IsNotNull}}"/>
+
+      <ScrollViewer Grid.Row="1">
+        <ItemsControl ItemsSource="{Binding Files}">
+          <ItemsControl.ItemTemplate>
+            <DataTemplate x:DataType="vm:ConflictFile">
+              <StackPanel Spacing="8" Margin="0,0,0,16">
+                <TextBlock Classes="path-mono heading" Text="{Binding Path}"/>
+                <ItemsControl ItemsSource="{Binding Hunks}">
+                  <ItemsControl.ItemTemplate>
+                    <DataTemplate x:DataType="vm:ConflictHunk">
+                      <Border BorderBrush="{DynamicResource LineBrush}" BorderThickness="1"
+                              CornerRadius="6" Padding="10" Margin="0,0,0,8">
+                        <StackPanel Spacing="6">
+                          <TextBlock Classes="meta" Text="{loc:Tr conflictResolver.current}"/>
+                          <TextBox Text="{Binding Ours, Mode=OneWay}" IsReadOnly="True"
+                                   AcceptsReturn="True" MaxHeight="120"/>
+                          <TextBlock Classes="meta" Text="{loc:Tr conflictResolver.incoming}"/>
+                          <TextBox Text="{Binding Theirs, Mode=OneWay}" IsReadOnly="True"
+                                   AcceptsReturn="True" MaxHeight="120"/>
+                          <StackPanel Orientation="Horizontal" Spacing="6">
+                            <Button Classes="btn" Content="{loc:Tr conflictResolver.acceptCurrent}"
+                                    Command="{Binding AcceptCurrentCommand}"/>
+                            <Button Classes="btn" Content="{loc:Tr conflictResolver.acceptIncoming}"
+                                    Command="{Binding AcceptIncomingCommand}"/>
+                            <Button Classes="btn" Content="{loc:Tr conflictResolver.acceptBoth}"
+                                    Command="{Binding AcceptBothCommand}"/>
+                            <Button Classes="btn" Content="{loc:Tr conflictResolver.editManually}"
+                                    Command="{Binding EditManuallyCommand}"/>
+                          </StackPanel>
+                          <TextBlock Classes="meta" Text="{loc:Tr conflictResolver.mergedResult}"/>
+                          <TextBox Text="{Binding Resolution, Mode=TwoWay}"
+                                   AcceptsReturn="True" MinHeight="80" MaxHeight="200"/>
+                        </StackPanel>
+                      </Border>
+                    </DataTemplate>
+                  </ItemsControl.ItemTemplate>
+                </ItemsControl>
+              </StackPanel>
+            </DataTemplate>
+          </ItemsControl.ItemTemplate>
+        </ItemsControl>
+      </ScrollViewer>
+    </Grid>
+  </ctl:ModalShell>
+</Window>

src/ClaudeDo.Ui/Views/Conflicts/ConflictResolverView.axaml.cs

@@ -0,0 +1,19 @@
+using Avalonia.Controls;
+using ClaudeDo.Ui.ViewModels.Conflicts;
+
+namespace ClaudeDo.Ui.Views.Conflicts;
+
+public partial class ConflictResolverView : Window
+{
+    public ConflictResolverView()
+    {
+        InitializeComponent();
+    }
+
+    protected override void OnDataContextChanged(System.EventArgs e)
+    {
+        base.OnDataContextChanged(e);
+        if (DataContext is ConflictResolverViewModel vm)
+            vm.CloseRequested = Close;
+    }
+}

src/ClaudeDo.Ui/Views/Islands/Detail/DescriptionStepsCard.axaml

@@ -2,6 +2,7 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:vm="using:ClaudeDo.Ui.ViewModels.Islands"
              xmlns:ctl="using:ClaudeDo.Ui.Views.Controls"
+             xmlns:loc="using:ClaudeDo.Ui.Localization"
              x:Class="ClaudeDo.Ui.Views.Islands.Detail.DescriptionStepsCard"
              x:DataType="vm:DetailsIslandViewModel">
 
@@ -21,7 +22,7 @@
           <Button Grid.Column="2"
                   Classes="icon-btn"
                   Margin="0,0,4,0"
-                  ToolTip.Tip="Copy formatted (title + description + open steps)"
+                  ToolTip.Tip="{loc:Tr details.copyFormattedTip}"
                   Click="OnCopyClick">
             <PathIcon Data="{StaticResource Icon.Copy}" Width="11" Height="11"/>
           </Button>
@@ -30,6 +31,7 @@
           <Button Grid.Column="3"
                   Classes="btn"
                   Padding="8,3"
+                  ToolTip.Tip="{loc:Tr details.toggleEditPreviewTip}"
                   Command="{Binding ToggleEditDescriptionCommand}">
             <Panel>
               <TextBlock Text="Preview" IsVisible="{Binding IsEditingDescription}"/>
@@ -40,7 +42,8 @@
         </Grid>
       </Border>
 
-      <!-- Body -->
+      <!-- Body (scrolls inside the card so the card fills its row to the divider) -->
+      <ScrollViewer VerticalScrollBarVisibility="Auto">
       <StackPanel Margin="14" Spacing="10">
 
         <!-- Description (always visible) -->
@@ -159,6 +162,7 @@
         </Border>
 
       </StackPanel>
+      </ScrollViewer>
     </DockPanel>
   </Border>
 

src/ClaudeDo.Ui/Views/Islands/Detail/TaskHeaderBar.axaml

@@ -30,7 +30,7 @@
     <!-- Column 1: trash button (not running) -->
     <Button Grid.Column="1" Classes="icon-btn"
             Command="{Binding DeleteTaskCommand}"
-            ToolTip.Tip="Delete task"
+            ToolTip.Tip="{loc:Tr details.deleteTaskTip}"
             IsVisible="{Binding !IsRunning}"
             VerticalAlignment="Top"
             Margin="6,0,0,0">
@@ -41,7 +41,7 @@
     <!-- Column 1: skull button (running) -->
     <Button Grid.Column="1" Classes="icon-btn"
             Command="{Binding StopCommand}"
-            ToolTip.Tip="Kill session"
+            ToolTip.Tip="{loc:Tr details.killSessionTip}"
             IsVisible="{Binding IsRunning}"
             VerticalAlignment="Top"
             Margin="6,0,0,0">

src/ClaudeDo.Ui/Views/Islands/Detail/WorkConsole.axaml

@@ -24,6 +24,18 @@
       <Setter Property="TextElement.Foreground" Value="{StaticResource AccentBrush}" />
     </Style>
 
+    <!-- Traffic-light dot button: no chrome, just the ellipse -->
+    <Style Selector="Button.dot-btn">
+      <Setter Property="Background"      Value="Transparent" />
+      <Setter Property="BorderThickness" Value="0" />
+      <Setter Property="Padding"         Value="0" />
+      <Setter Property="CornerRadius"    Value="0" />
+      <Setter Property="Cursor"          Value="Hand" />
+    </Style>
+    <Style Selector="Button.dot-btn /template/ ContentPresenter">
+      <Setter Property="Background" Value="Transparent" />
+    </Style>
+
     <!-- Terminal prompt action: bracketed text, no button chrome -->
     <Style Selector="Button.prompt-action">
       <Setter Property="Background"      Value="Transparent" />
@@ -60,7 +72,7 @@
       <Grid DockPanel.Dock="Top" ColumnDefinitions="Auto,*,Auto"
             Background="{DynamicResource Surface2Brush}" Height="28">
 
-        <!-- Traffic-light dots -->
+        <!-- Traffic-light dots (decorative) -->
         <StackPanel Grid.Column="0" Orientation="Horizontal" Spacing="6"
                     Margin="12,0" VerticalAlignment="Center">
           <Ellipse Classes="dot-red" />
@@ -161,6 +173,7 @@
           <Button Classes="tab-btn"
                   Classes.active="{Binding IsSessionTab}"
                   Content="Session"
+                  IsVisible="{Binding HasChildOutcomes}"
                   Command="{Binding SelectTabCommand}"
                   CommandParameter="session" />
         </StackPanel>
@@ -172,6 +185,26 @@
         <!-- Output: log + review footer, both gated on IsOutputTab -->
         <DockPanel IsVisible="{Binding IsOutputTab}" LastChildFill="True">
 
+          <!-- Session outcome: the run's result summary, incl. any roadblocks
+               reported (or the error for a hard failure). -->
+          <Border DockPanel.Dock="Top"
+                  Margin="12,8,12,4" Padding="10,8"
+                  IsVisible="{Binding ShowSessionOutcome}"
+                  Background="{DynamicResource Surface2Brush}"
+                  BorderBrush="{DynamicResource LineBrush}"
+                  BorderThickness="1" CornerRadius="8">
+            <StackPanel Spacing="6">
+              <TextBlock Classes="section-label" Text="OUTCOME" />
+              <ScrollViewer MaxHeight="160" VerticalScrollBarVisibility="Auto">
+                <SelectableTextBlock Text="{Binding SessionOutcome}"
+                                     TextWrapping="Wrap"
+                                     Foreground="{DynamicResource TextDimBrush}"
+                                     FontFamily="{StaticResource MonoFont}"
+                                     FontSize="{StaticResource FontSizeMono}" />
+              </ScrollViewer>
+            </StackPanel>
+          </Border>
+
           <!-- Review prompt — sits directly on the terminal, like a shell input line;
                only while awaiting review. No border/fill so it reads as part of the log. -->
           <Grid DockPanel.Dock="Bottom"
@@ -200,8 +233,10 @@
             <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="10"
                         VerticalAlignment="Top" Margin="12,2,0,0">
               <Button Classes="prompt-action accent" Content="[Continue]"
+                      ToolTip.Tip="{loc:Tr session.reviewContinueTip}"
                       Command="{Binding RejectReviewCommand}" />
               <Button Classes="prompt-action" Content="[Reset]"
+                      ToolTip.Tip="{loc:Tr session.reviewResetTip}"
                       Command="{Binding ResetReviewCommand}" />
             </StackPanel>
           </Grid>
@@ -229,64 +264,48 @@
 
         </DockPanel>
 
-        <!-- Git: merge target, approve, diff, worktree -->
+        <!-- Git: one Approve + merge cockpit -->
         <ScrollViewer IsVisible="{Binding IsGitTab}" Padding="14,10">
-          <StackPanel Spacing="14">
+          <StackPanel Spacing="12" IsVisible="{Binding ShowMergeSection}">
+            <TextBlock Classes="section-label" Text="MERGE" />
 
-            <!-- Approve (review-gated) -->
-            <StackPanel Spacing="8" IsVisible="{Binding IsWaitingForReview}">
-              <TextBlock Classes="section-label" Text="REVIEW" />
-              <Button Classes="btn accent" Content="Approve"
-                      Command="{Binding ApproveReviewCommand}" />
+            <StackPanel Spacing="4">
+              <TextBlock Classes="field-label" Text="Target branch" />
+              <ComboBox ItemsSource="{Binding MergeTargetBranches}"
+                        SelectedItem="{Binding SelectedMergeTarget, Mode=TwoWay}"
+                        HorizontalAlignment="Stretch" />
             </StackPanel>
 
-            <!-- Merge & worktree management (moved from Session tab) -->
-            <StackPanel Spacing="10" IsVisible="{Binding ShowMergeSection}">
-              <TextBlock Classes="section-label" Text="MERGE &amp; WORKTREE" />
-              <StackPanel Spacing="4">
-                <TextBlock Classes="field-label" Text="Merge target" />
-                <ComboBox ItemsSource="{Binding MergeTargetBranches}"
-                          SelectedItem="{Binding SelectedMergeTarget, Mode=TwoWay}"
-                          HorizontalAlignment="Stretch" />
-              </StackPanel>
-              <StackPanel Spacing="0">
-                <TextBlock Classes="meta" Text="{Binding MergePreviewText}" TextWrapping="Wrap"
-                           Foreground="{DynamicResource MossBrush}"
-                           IsVisible="{Binding MergeIsClean}" />
-                <TextBlock Classes="meta" Text="{Binding MergePreviewText}" TextWrapping="Wrap"
-                           Foreground="{DynamicResource BloodBrush}"
-                           IsVisible="{Binding MergeIsConflict}" />
-                <TextBlock Classes="meta" Text="{Binding MergePreviewText}" TextWrapping="Wrap"
-                           Foreground="{DynamicResource TextMuteBrush}"
-                           IsVisible="{Binding ShowMergePreviewMuted}" />
-              </StackPanel>
-              <WrapPanel Orientation="Horizontal">
-                <Button Classes="btn" Content="Open Diff" Margin="0,0,8,8"
-                        Command="{Binding OpenDiffCommand}" />
-                <Button Classes="btn accent" Content="Merge" Margin="0,0,8,8"
-                        Command="{Binding MergeCommand}"
-                        IsVisible="{Binding ShowSingleMerge}" />
-                <Button Classes="btn" Margin="0,0,8,8"
-                        Command="{Binding OpenWorktreeCommand}">
-                  <StackPanel Orientation="Horizontal" Spacing="5">
-                    <TextBlock Text="Worktree" />
-                    <PathIcon Data="{StaticResource Icon.ArrowOut}" Width="11" Height="11" />
-                  </StackPanel>
-                </Button>
-                <Button Classes="btn" Content="Review Combined Diff" Margin="0,0,8,8"
-                        Command="{Binding ReviewCombinedDiffCommand}" />
-                <Button Classes="btn accent" Content="Merge All Subtasks" Margin="0,0,0,8"
-                        Command="{Binding MergeAllCommand}"
-                        IsEnabled="{Binding CanMergeAll}"
-                        ToolTip.Tip="{Binding MergeAllDisabledReason}" />
-              </WrapPanel>
-              <TextBlock Text="{Binding MergeAllError}"
+            <StackPanel Spacing="0">
+              <TextBlock Classes="meta" Text="{Binding MergePreviewText}" TextWrapping="Wrap"
+                         Foreground="{DynamicResource MossBrush}"
+                         IsVisible="{Binding MergeIsClean}" />
+              <TextBlock Classes="meta" Text="{Binding MergePreviewText}" TextWrapping="Wrap"
                          Foreground="{DynamicResource BloodBrush}"
-                         TextWrapping="Wrap"
-                         IsVisible="{Binding MergeAllError,
-                             Converter={x:Static ObjectConverters.IsNotNull}}" />
+                         IsVisible="{Binding MergeIsConflict}" />
+              <TextBlock Classes="meta" Text="{Binding MergePreviewText}" TextWrapping="Wrap"
+                         Foreground="{DynamicResource TextMuteBrush}"
+                         IsVisible="{Binding ShowMergePreviewMuted}" />
             </StackPanel>
 
+            <!-- Primary action: Approve flows straight into the merge. -->
+            <WrapPanel Orientation="Horizontal">
+              <Button Classes="btn accent" Content="Approve &amp; Merge" Margin="0,0,8,8"
+                      Command="{Binding ApproveReviewCommand}"
+                      IsVisible="{Binding IsWaitingForReview}" />
+              <Button Classes="btn" Content="Open Diff" Margin="0,0,8,8"
+                      Command="{Binding OpenDiffCommand}" />
+              <Button Classes="btn" Margin="0,0,8,8"
+                      ToolTip.Tip="{loc:Tr agent.openWorktreeTip}"
+                      Command="{Binding OpenWorktreeCommand}">
+                <StackPanel Orientation="Horizontal" Spacing="5">
+                  <TextBlock Text="Worktree" />
+                  <PathIcon Data="{StaticResource Icon.ArrowOut}" Width="11" Height="11" />
+                </StackPanel>
+              </Button>
+              <Button Classes="btn" Content="Review Combined Diff" Margin="0,0,8,8"
+                      Command="{Binding ReviewCombinedDiffCommand}" />
+            </WrapPanel>
           </StackPanel>
         </ScrollViewer>
 
@@ -294,6 +313,22 @@
         <ScrollViewer IsVisible="{Binding IsSessionTab}" Padding="14,10">
           <StackPanel Spacing="14">
 
+            <!-- Attention band: a child failed, was cancelled, still needs its own
+                 review, or reported roadblocks. The parent stays waiting until resolved. -->
+            <Border IsVisible="{Binding HasChildrenNeedingAttention}"
+                    Background="{DynamicResource ErrorTintBrush}"
+                    BorderBrush="{DynamicResource BloodBrush}"
+                    BorderThickness="1" CornerRadius="8" Padding="10,8">
+              <StackPanel Orientation="Horizontal" Spacing="8">
+                <PathIcon Data="{StaticResource Icon.Warning}"
+                          Foreground="{DynamicResource BloodBrush}"
+                          Width="14" Height="14" VerticalAlignment="Center" />
+                <TextBlock Classes="meta" Text="{Binding ChildrenAttentionText}"
+                           Foreground="{DynamicResource BloodBrush}"
+                           VerticalAlignment="Center" />
+              </StackPanel>
+            </Border>
+
             <!-- Child outcomes -->
             <StackPanel Spacing="6" IsVisible="{Binding HasChildOutcomes}">
               <TextBlock Classes="section-label" Text="OUTCOMES" />
@@ -316,13 +351,6 @@
               </ItemsControl>
             </StackPanel>
 
-            <!-- Empty state: nothing to manage yet -->
-            <TextBlock IsVisible="{Binding ShowSessionEmpty}"
-                       Classes="meta"
-                       Foreground="{DynamicResource TextMuteBrush}"
-                       TextWrapping="Wrap"
-                       Text="Nothing to manage yet — subtask outcomes appear here once the run finishes. Review in the Output tab, merge in the Git tab." />
-
           </StackPanel>
         </ScrollViewer>
 

src/ClaudeDo.Ui/Views/Islands/DetailsIslandView.axaml

@@ -39,21 +39,59 @@
     <Grid>
 
       <!-- Task detail: description/steps card (upper) + pinned work console (lower) -->
-      <Grid IsVisible="{Binding IsTaskDetailVisible}"
-            Margin="14,12,14,12"
-            RowDefinitions="2*,*">
-        <ScrollViewer Grid.Row="0" VerticalScrollBarVisibility="Auto">
-          <detail:DescriptionStepsCard VerticalAlignment="Top"/>
-        </ScrollViewer>
-        <detail:WorkConsole Grid.Row="1" Margin="0,10,0,0"/>
+      <Grid x:Name="DetailBodyGrid"
+            IsVisible="{Binding IsTaskDetailVisible}"
+            Margin="14,12,14,12">
+        <Grid.RowDefinitions>
+          <!-- Auto: the description sizes to its content so the console takes
+               every spare pixel when it's short. Row limits are proportional
+               and set in code-behind (UpdateRowLimits): the description row is
+               capped at 2/3 of the island and the console row floored at 1/3,
+               so the console can be dragged down to (but not below) 1/3 and a
+               long description never spills over the footer. -->
+          <RowDefinition Height="Auto" MinHeight="90"/>
+          <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+        <detail:DescriptionStepsCard x:Name="DescriptionCard" Grid.Row="0"/>
+
+        <!-- Console row also hosts the roadblock card (docked above the console)
+             so it surfaces at a glance between Details and Output. Keeping it
+             inside row 1 leaves the desc/console resize model untouched. -->
+        <DockPanel Grid.Row="1" Margin="0,10,0,0">
+          <Border DockPanel.Dock="Top"
+                  IsVisible="{Binding ShowRoadblockCard}"
+                  Margin="0,0,0,10" Padding="12,10"
+                  Background="{DynamicResource ReviewTintBrush}"
+                  BorderBrush="{DynamicResource ReviewTintBorderBrush}"
+                  BorderThickness="1" CornerRadius="10">
+            <StackPanel Spacing="6">
+              <StackPanel Orientation="Horizontal" Spacing="8">
+                <PathIcon Data="{StaticResource Icon.Warning}"
+                          Foreground="{DynamicResource StatusReviewBrush}"
+                          Width="14" Height="14" VerticalAlignment="Center"/>
+                <TextBlock Classes="section-label" Text="ROADBLOCK"
+                           Foreground="{DynamicResource StatusReviewBrush}"
+                           VerticalAlignment="Center"/>
+              </StackPanel>
+              <SelectableTextBlock Text="{Binding Roadblocks}"
+                                   TextWrapping="Wrap"
+                                   Foreground="{DynamicResource TextDimBrush}"/>
+            </StackPanel>
+          </Border>
+          <detail:WorkConsole/>
+        </DockPanel>
+
         <!-- Resize by dragging the console's top edge — a transparent splitter
-             over the gap above the console; no standalone separator bar. -->
-        <GridSplitter Grid.Row="1"
+             over the gap above the console; no standalone separator bar.
+             Stays draggable while maximized. -->
+        <GridSplitter x:Name="DetailSplitter" Grid.Row="1"
                       VerticalAlignment="Top"
                       Height="10"
                       HorizontalAlignment="Stretch"
                       ResizeDirection="Rows"
-                      Background="Transparent"/>
+                      Background="Transparent"
+                      DragStarted="OnSplitterDragStarted"
+                      DragCompleted="OnSplitterDragCompleted"/>
       </Grid>
 
       <!-- Notes mode -->

src/ClaudeDo.Ui/Views/Islands/DetailsIslandView.axaml.cs

@@ -1,7 +1,9 @@
 using Avalonia;
 using Avalonia.Controls;
+using Avalonia.Input;
 using Avalonia.Layout;
 using Avalonia.Media;
+using Avalonia.Reactive;
 using ClaudeDo.Ui.ViewModels.Islands;
 using ClaudeDo.Ui.Views.Modals;
 using ClaudeDo.Ui.Views.Planning;
@@ -10,16 +12,42 @@ namespace ClaudeDo.Ui.Views.Islands;
 
 public partial class DetailsIslandView : UserControl
 {
+    // Per-task description height (pixels) once the user drags the splitter.
+    // Keyed by task id so each task keeps its own resize; tasks that were
+    // never dragged stay dynamic (Auto-sized description).
+    private readonly Dictionary<string, double> _descriptionHeights = new();
+    private DetailsIslandViewModel? _vm;
+
     public DetailsIslandView()
     {
         InitializeComponent();
         DataContextChanged += OnDataContextChanged;
+        // Keep the row limits proportional to the island height: description
+        // capped at 2/3, console floored at 1/3. The GridSplitter honours these
+        // row Min/Max during a drag, so the console stops shrinking at 1/3.
+        DetailBodyGrid.GetObservable(BoundsProperty)
+            .Subscribe(new AnonymousObserver<Rect>(_ => UpdateRowLimits()));
+    }
+
+    private void UpdateRowLimits()
+    {
+        var h = DetailBodyGrid.Bounds.Height;
+        if (h <= 0) return;
+        DetailBodyGrid.RowDefinitions[0].MaxHeight = h * 2.0 / 3.0;
+        DetailBodyGrid.RowDefinitions[1].MinHeight = h / 3.0;
     }
 
     private void OnDataContextChanged(object? sender, EventArgs e)
     {
+        if (_vm != null)
+            _vm.PropertyChanged -= OnViewModelPropertyChanged;
+
         if (DataContext is DetailsIslandViewModel vm)
         {
+            _vm = vm;
+            vm.PropertyChanged += OnViewModelPropertyChanged;
+            ApplyResizeStateForCurrentTask();
+
             vm.ShowDiffModal = async (diffVm) =>
             {
                 var owner = TopLevel.GetTopLevel(this) as Window;
@@ -49,6 +77,41 @@ public partial class DetailsIslandView : UserControl
         }
     }
 
+    // Restores the resize state for the currently-selected task: a task the
+    // user has dragged before gets its pinned pixel height (cap lifted); a task
+    // never dragged falls back to dynamic sizing (Auto row + the bound cap).
+    private void OnViewModelPropertyChanged(object? sender, System.ComponentModel.PropertyChangedEventArgs e)
+    {
+        if (e.PropertyName == nameof(DetailsIslandViewModel.Task))
+            ApplyResizeStateForCurrentTask();
+    }
+
+    private void ApplyResizeStateForCurrentTask()
+    {
+        // A task dragged before keeps its pixel height (clamped by the row's
+        // 2/3 MaxHeight); a task never dragged stays Auto-sized.
+        DetailBodyGrid.RowDefinitions[0].Height = _vm?.Task?.Id is string id && _descriptionHeights.TryGetValue(id, out var h)
+            ? new GridLength(h, GridUnitType.Pixel)
+            : GridLength.Auto;
+    }
+
+    // Pin the (until now Auto-sized) description row to its current pixel
+    // height so the splitter resizes smoothly from there.
+    private void OnSplitterDragStarted(object? sender, VectorEventArgs e)
+    {
+        var descRow = DetailBodyGrid.RowDefinitions[0];
+        if (descRow.Height.IsAuto)
+            descRow.Height = new GridLength(DescriptionCard.Bounds.Height, GridUnitType.Pixel);
+    }
+
+    // Remember the dragged height for this task so switching tasks keeps each
+    // task's resize independent.
+    private void OnSplitterDragCompleted(object? sender, VectorEventArgs e)
+    {
+        if (_vm?.Task?.Id is string id)
+            _descriptionHeights[id] = DetailBodyGrid.RowDefinitions[0].Height.Value;
+    }
+
     private async System.Threading.Tasks.Task ShowErrorDialogAsync(string message)
     {
         var owner = TopLevel.GetTopLevel(this) as Window;

src/ClaudeDo.Ui/Views/Islands/TaskRowView.axaml

@@ -78,7 +78,8 @@
                 CommandParameter="{Binding}"
                 Classes="icon-btn"
                 Width="18" Height="18"
-                VerticalAlignment="Center">
+                VerticalAlignment="Center"
+                ToolTip.Tip="{loc:Tr tasks.toggleSubtasksTip}">
           <Panel>
             <TextBlock Classes="meta" Text="▾" IsVisible="{Binding IsExpanded}"
                        VerticalAlignment="Center" HorizontalAlignment="Center"/>
@@ -141,7 +142,7 @@
                       Data="{StaticResource Icon.AgentSuggested}"
                       Foreground="#5C8FA8"
                       IsVisible="{Binding IsAgentSuggested}"
-                      ToolTip.Tip="Suggested by the agent"/>
+                      ToolTip.Tip="{loc:Tr tasks.agentSuggestedTip}"/>
 
             <!-- Status chip -->
             <Border Classes="chip"
@@ -211,7 +212,8 @@
                 Classes.on="{Binding IsStarred}"
                 VerticalAlignment="Top" Margin="0,2,0,0"
                 Command="{Binding $parent[ItemsControl].((vm:TasksIslandViewModel)DataContext).ToggleStarCommand}"
-                CommandParameter="{Binding}">
+                CommandParameter="{Binding}"
+                ToolTip.Tip="{loc:Tr details.starTip}">
           <PathIcon Width="14" Height="14" Data="{StaticResource Icon.Star}"/>
         </Button>
         </Grid>

src/ClaudeDo.Ui/Views/MainWindow.axaml.cs

@@ -81,6 +81,10 @@ public partial class MainWindow : Window
                     var mergeDlg = new MergeModalView { DataContext = mergeVm };
                     await mergeDlg.ShowDialog(this);
                 };
+                modal.RequestConflictResolution = (taskId, target) =>
+                    DataContext is IslandsShellViewModel s
+                        ? s.RequestConflictResolutionAsync(taskId, target)
+                        : System.Threading.Tasks.Task.CompletedTask;
                 await dlg.ShowDialog(this);
             };
             vm.ShowRepoImportModal = async (modal) =>
@@ -95,6 +99,11 @@ public partial class MainWindow : Window
                 connVm.CloseAction = () => dlg.Close();
                 await dlg.ShowDialog(this);
             };
+            vm.ShowConflictResolver = async (resolverVm) =>
+            {
+                var dlg = new ClaudeDo.Ui.Views.Conflicts.ConflictResolverView { DataContext = resolverVm };
+                await dlg.ShowDialog(this);
+            };
         }
     }
 

src/ClaudeDo.Ui/Views/Modals/DiffModalView.axaml

@@ -26,51 +26,100 @@
       </StackPanel>
     </ctl:ModalShell.Footer>
 
-    <!-- Body: sidebar + diff content -->
-    <Grid ColumnDefinitions="240,*">
+    <!-- Body: two islands — file list | diff content -->
+    <Grid ColumnDefinitions="280,12,*" Margin="16">
 
-      <!-- File sidebar -->
-      <Border Grid.Column="0"
-              Classes="sidebar-pane">
-        <ListBox ItemsSource="{Binding Files}"
-                 SelectedItem="{Binding SelectedFile, Mode=TwoWay}"
-                 Background="Transparent"
-                 BorderThickness="0"
-                 ScrollViewer.HorizontalScrollBarVisibility="Disabled">
-          <ListBox.ItemTemplate>
-            <DataTemplate x:DataType="vm:DiffFileViewModel">
-              <Border Padding="10,8" Background="Transparent">
-                <StackPanel Spacing="4">
-                  <TextBlock Classes="path-mono" Text="{Binding Path}"
-                             TextTrimming="PrefixCharacterEllipsis"/>
-                  <StackPanel Orientation="Horizontal" Spacing="6">
-                    <Border Classes="chip" Padding="5,2">
-                      <TextBlock Foreground="{DynamicResource MossBrightBrush}"
-                                 Text="{Binding Additions, StringFormat='+{0}'}"/>
-                    </Border>
-                    <Border Classes="chip" Padding="5,2">
-                      <TextBlock Foreground="{DynamicResource BloodBrush}"
-                                 Text="{Binding Deletions, StringFormat='−{0}'}"/>
-                    </Border>
+      <!-- Files island -->
+      <Border Grid.Column="0" Classes="island">
+        <DockPanel>
+          <Border DockPanel.Dock="Top" Classes="island-header">
+            <TextBlock Classes="eyebrow" Text="{loc:Tr modals.diff.filesHeader}"/>
+          </Border>
+          <ListBox ItemsSource="{Binding Files}"
+                   SelectedItem="{Binding SelectedFile, Mode=TwoWay}"
+                   Background="Transparent"
+                   BorderThickness="0"
+                   ScrollViewer.HorizontalScrollBarVisibility="Disabled">
+            <ListBox.ItemTemplate>
+              <DataTemplate x:DataType="vm:DiffFileViewModel">
+                <Border Padding="10,8" Background="Transparent">
+                  <StackPanel Spacing="4">
+                    <Grid ColumnDefinitions="Auto,*">
+                      <Border Grid.Column="0" Tag="{Binding StatusCode}"
+                              CornerRadius="3" Padding="4,0" Margin="0,0,8,0"
+                              VerticalAlignment="Center">
+                        <TextBlock Text="{Binding StatusCode}"
+                                   FontFamily="{DynamicResource MonoFont}"
+                                   FontSize="{StaticResource FontSizeEyebrow}"
+                                   Foreground="{DynamicResource TextBrush}"/>
+                      </Border>
+                      <TextBlock Grid.Column="1" Classes="path-mono" Text="{Binding Path}"
+                                 VerticalAlignment="Center"
+                                 TextTrimming="PrefixCharacterEllipsis"/>
+                    </Grid>
+                    <StackPanel Orientation="Horizontal" Spacing="6"
+                                IsVisible="{Binding !IsBinary}">
+                      <Border Classes="chip" Padding="5,2">
+                        <TextBlock Foreground="{DynamicResource MossBrightBrush}"
+                                   Text="{Binding Additions, StringFormat='+{0}'}"/>
+                      </Border>
+                      <Border Classes="chip" Padding="5,2">
+                        <TextBlock Foreground="{DynamicResource BloodBrush}"
+                                   Text="{Binding Deletions, StringFormat='−{0}'}"/>
+                      </Border>
+                    </StackPanel>
                   </StackPanel>
-                </StackPanel>
-              </Border>
-            </DataTemplate>
-          </ListBox.ItemTemplate>
-        </ListBox>
+                </Border>
+              </DataTemplate>
+            </ListBox.ItemTemplate>
+          </ListBox>
+        </DockPanel>
       </Border>
 
-      <!-- Diff content -->
-      <Grid Grid.Column="1" Background="{DynamicResource VoidBrush}">
-        <TextBlock Classes="body" Text="{Binding StatusMessage}"
-                   IsVisible="{Binding StatusMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"
-                   HorizontalAlignment="Center"
-                   VerticalAlignment="Center"/>
-        <ScrollViewer HorizontalScrollBarVisibility="Auto"
-                    VerticalScrollBarVisibility="Auto">
-          <ctl:DiffLinesView Lines="{Binding SelectedFile.Lines}"/>
-        </ScrollViewer>
-      </Grid>
+      <!-- Diff content island -->
+      <Border Grid.Column="2" Classes="island">
+        <DockPanel>
+          <Border DockPanel.Dock="Top" Classes="island-header"
+                  IsVisible="{Binding SelectedFile, Converter={x:Static ObjectConverters.IsNotNull}}">
+            <Grid ColumnDefinitions="Auto,*">
+              <Border Grid.Column="0" Tag="{Binding SelectedFile.StatusCode}"
+                      CornerRadius="3" Padding="4,0" Margin="0,0,8,0"
+                      VerticalAlignment="Center">
+                <TextBlock Text="{Binding SelectedFile.StatusCode}"
+                           FontFamily="{DynamicResource MonoFont}"
+                           FontSize="{StaticResource FontSizeEyebrow}"
+                           Foreground="{DynamicResource TextBrush}"/>
+              </Border>
+              <TextBlock Grid.Column="1" Classes="path-mono" Text="{Binding SelectedFile.Path}"
+                         VerticalAlignment="Center"
+                         TextTrimming="PrefixCharacterEllipsis"/>
+            </Grid>
+          </Border>
+
+          <Grid Background="{DynamicResource VoidBrush}">
+            <!-- Load / no-changes message -->
+            <TextBlock Classes="body" Text="{Binding StatusMessage}"
+                       IsVisible="{Binding StatusMessage, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"
+                       HorizontalAlignment="Center" VerticalAlignment="Center"/>
+            <!-- Binary file -->
+            <TextBlock Classes="body" Text="{loc:Tr modals.diff.binary}"
+                       Foreground="{DynamicResource TextMuteBrush}"
+                       IsVisible="{Binding SelectedFile.IsBinary}"
+                       HorizontalAlignment="Center" VerticalAlignment="Center"/>
+            <!-- Empty / no-content file -->
+            <TextBlock Classes="body" Text="{loc:Tr modals.diff.empty}"
+                       Foreground="{DynamicResource TextMuteBrush}"
+                       IsVisible="{Binding SelectedFile.IsEmptyContent}"
+                       HorizontalAlignment="Center" VerticalAlignment="Center"/>
+            <!-- Diff content -->
+            <ScrollViewer HorizontalScrollBarVisibility="Auto"
+                          VerticalScrollBarVisibility="Auto"
+                          IsVisible="{Binding SelectedFile.HasLines}">
+              <ctl:DiffLinesView Lines="{Binding SelectedFile.Lines}"/>
+            </ScrollViewer>
+          </Grid>
+        </DockPanel>
+      </Border>
     </Grid>
   </ctl:ModalShell>
 </Window>

src/ClaudeDo.Ui/Views/Modals/SettingsModalView.axaml

@@ -243,6 +243,7 @@
                         <TextBlock Classes="meta" Grid.Column="3" Text="{Binding LastRunLabel}" VerticalAlignment="Center"
                                    MinWidth="80"/>
                         <Button Classes="icon-btn" Grid.Column="4" Content="✕"
+                                ToolTip.Tip="{loc:Tr settings.prime.removeScheduleTip}"
                                 Command="{Binding $parent[ItemsControl].((vm:SettingsModalViewModel)DataContext).Prime.RemoveScheduleCommand}"
                                 CommandParameter="{Binding}"/>
                       </Grid>

src/ClaudeDo.Ui/Views/Modals/WorktreeModalView.axaml

@@ -2,6 +2,7 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:vm="using:ClaudeDo.Ui.ViewModels.Modals"
         xmlns:converters="using:ClaudeDo.Ui.Converters"
+        xmlns:ctl="using:ClaudeDo.Ui.Views.Controls"
         xmlns:loc="using:ClaudeDo.Ui.Localization"
         x:Class="ClaudeDo.Ui.Views.Modals.WorktreeModalView"
         x:DataType="vm:WorktreeModalViewModel"
@@ -16,10 +17,6 @@
         CanResize="True"
         TransparencyLevelHint="AcrylicBlur">
 
-  <Window.Resources>
-    <converters:DiffLineKindToBrushConverter x:Key="DiffLineKindToBrush"/>
-  </Window.Resources>
-
   <Window.KeyBindings>
     <KeyBinding Gesture="Escape" Command="{Binding CloseCommand}"/>
   </Window.KeyBindings>
@@ -89,17 +86,7 @@
                       HorizontalScrollBarVisibility="Auto"
                       VerticalScrollBarVisibility="Auto"
                       Margin="4,0,8,8">
-          <ItemsControl ItemsSource="{Binding SelectedFileDiffLines}">
-            <ItemsControl.ItemTemplate>
-              <DataTemplate DataType="vm:WorktreeDiffLineViewModel">
-                <SelectableTextBlock Text="{Binding Text}"
-                                     FontFamily="{DynamicResource MonoFont}"
-                                     FontSize="{StaticResource FontSizeMono}"
-                                     Foreground="{Binding Kind, Converter={StaticResource DiffLineKindToBrush}}"
-                                     TextWrapping="NoWrap"/>
-              </DataTemplate>
-            </ItemsControl.ItemTemplate>
-          </ItemsControl>
+          <ctl:DiffLinesView Lines="{Binding SelectedFileDiffLines}"/>
         </ScrollViewer>
 
       </Grid>

src/ClaudeDo.Ui/Views/Modals/WorktreesOverviewModalView.axaml

@@ -60,8 +60,12 @@
                       CommandParameter="{Binding}"/>
           </ContextMenu>
         </Border.ContextMenu>
-        <Grid ColumnDefinitions="*,90,80,80">
-          <StackPanel Grid.Column="0" Orientation="Vertical" Spacing="2">
+        <Grid ColumnDefinitions="Auto,*,90,90,80,80">
+          <CheckBox Grid.Column="0" VerticalAlignment="Center" Margin="0,0,8,0"
+                    IsChecked="{Binding IsChecked, Mode=TwoWay}"
+                    IsEnabled="{Binding IsActive}"
+                    IsVisible="{Binding IsActive}"/>
+          <StackPanel Grid.Column="1" Orientation="Vertical" Spacing="2">
             <TextBlock Classes="title" Text="{Binding TaskTitle}"/>
             <StackPanel Orientation="Horizontal" Spacing="4">
               <TextBlock Classes="meta" Text="{Binding TaskStatus}"/>
@@ -72,13 +76,16 @@
                          ToolTip.Tip="{loc:Tr modals.worktreesOverview.phantomTooltip}"/>
             </StackPanel>
           </StackPanel>
-          <Border Grid.Column="1" CornerRadius="3" Padding="6,2" VerticalAlignment="Center"
+          <TextBlock Grid.Column="2" Classes="meta" VerticalAlignment="Center"
+                     Text="{Binding MergeOutcome}"
+                     IsVisible="{Binding HasOutcome}"/>
+          <Border Grid.Column="3" CornerRadius="3" Padding="6,2" VerticalAlignment="Center"
                   Background="{Binding State, Converter={StaticResource WorktreeStateColor}}">
             <TextBlock Classes="meta" Text="{Binding State}" Foreground="{DynamicResource TextBrush}"
                        HorizontalAlignment="Center"/>
           </Border>
-          <TextBlock Grid.Column="2" Classes="meta" Text="{Binding DiffStat}" VerticalAlignment="Center"/>
-          <TextBlock Grid.Column="3" Classes="meta" Text="{Binding AgeText}" VerticalAlignment="Center"/>
+          <TextBlock Grid.Column="4" Classes="meta" Text="{Binding DiffStat}" VerticalAlignment="Center"/>
+          <TextBlock Grid.Column="5" Classes="meta" Text="{Binding AgeText}" VerticalAlignment="Center"/>
         </Grid>
       </Border>
     </DataTemplate>
@@ -98,7 +105,20 @@
         <StackPanel Orientation="Horizontal" Spacing="8">
           <Button Classes="btn" Content="{loc:Tr modals.worktreesOverview.refresh}" Command="{Binding RefreshCommand}" IsEnabled="{Binding !IsBusy}"/>
           <Button Classes="btn" Content="{loc:Tr modals.worktreesOverview.cleanupFinished}" Command="{Binding CleanupFinishedCommand}" IsEnabled="{Binding !IsBusy}"/>
-          <TextBlock Text="{Binding StatusMessage}" VerticalAlignment="Center" Margin="12,0,0,0"
+          <Button Classes="btn" Content="{loc:Tr modals.worktreesOverview.selectAll}" Command="{Binding ToggleSelectAllCommand}"/>
+          <Border Width="1" Background="{DynamicResource LineBrush}" Margin="4,2"/>
+          <TextBlock Text="{loc:Tr modals.worktreesOverview.targetLabel}" VerticalAlignment="Center" Foreground="{DynamicResource TextDimBrush}"/>
+          <ComboBox MinWidth="160"
+                    ItemsSource="{Binding MergeTargets}"
+                    SelectedItem="{Binding SelectedTarget, Mode=TwoWay}"/>
+          <Button Classes="btn accent"
+                  Content="{loc:Tr modals.worktreesOverview.mergeAll}"
+                  Command="{Binding MergeAllCommand}"/>
+          <TextBlock Text="{Binding SelectedCount, StringFormat='{}{0} selected'}"
+                     VerticalAlignment="Center" Foreground="{DynamicResource TextDimBrush}"/>
+          <TextBlock Text="{Binding BatchProgress}" VerticalAlignment="Center" Margin="8,0,0,0"
+                     Foreground="{DynamicResource TextDimBrush}"/>
+          <TextBlock Text="{Binding StatusMessage}" VerticalAlignment="Center" Margin="8,0,0,0"
                      Foreground="{DynamicResource TextDimBrush}"/>
         </StackPanel>
       </Border>
@@ -106,12 +126,35 @@
       <!-- Content -->
       <ScrollViewer Padding="20,16">
         <StackPanel>
+          <Border IsVisible="{Binding ConflictRows.Count}"
+                  Background="{DynamicResource ErrorTintBrush}"
+                  BorderBrush="{DynamicResource StatusErrorBrush}"
+                  BorderThickness="1" CornerRadius="6" Padding="12,8" Margin="0,0,0,12">
+            <StackPanel Spacing="6">
+              <TextBlock Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.needsResolution}"/>
+              <ItemsControl ItemsSource="{Binding ConflictRows}">
+                <ItemsControl.ItemTemplate>
+                  <DataTemplate x:DataType="vm:WorktreeOverviewRowViewModel">
+                    <Grid ColumnDefinitions="*,Auto" Margin="0,2">
+                      <TextBlock Grid.Column="0" Classes="meta" VerticalAlignment="Center"
+                                 Text="{Binding TaskTitle}"/>
+                      <Button Grid.Column="1" Classes="btn"
+                              Content="{loc:Tr modals.worktreesOverview.resolve}"
+                              Command="{Binding $parent[Window].((vm:WorktreesOverviewModalViewModel)DataContext).ResolveConflictCommand}"
+                              CommandParameter="{Binding}"/>
+                    </Grid>
+                  </DataTemplate>
+                </ItemsControl.ItemTemplate>
+              </ItemsControl>
+            </StackPanel>
+          </Border>
           <!-- Column headers -->
-          <Grid ColumnDefinitions="*,90,80,80" Margin="12,0,12,4">
-            <TextBlock Grid.Column="0" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnTask}"/>
-            <TextBlock Grid.Column="1" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnState}"/>
-            <TextBlock Grid.Column="2" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnDiff}"/>
-            <TextBlock Grid.Column="3" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnAge}"/>
+          <Grid ColumnDefinitions="Auto,*,90,90,80,80" Margin="12,0,12,4">
+            <TextBlock Grid.Column="1" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnTask}"/>
+            <TextBlock Grid.Column="2" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnOutcome}"/>
+            <TextBlock Grid.Column="3" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnState}"/>
+            <TextBlock Grid.Column="4" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnDiff}"/>
+            <TextBlock Grid.Column="5" Classes="eyebrow" Text="{loc:Tr modals.worktreesOverview.columnAge}"/>
           </Grid>
           <Border Height="1" Background="{DynamicResource LineBrush}" Margin="0,0,0,8"/>
 

src/ClaudeDo.Worker/CLAUDE.md

@@ -58,7 +58,7 @@ Interfaces (e.g. `IQueueWaker`, `IPrimeClock`, `ITaskStateService`) live in an `
 
 | Field | Values | Meaning |
 |---|---|---|
-| `Status` | `Idle`, `Queued`, `Running`, `WaitingForReview`, `Done`, `Failed`, `Cancelled` | Lifecycle only. |
+| `Status` | `Idle`, `Queued`, `Running`, `WaitingForChildren`, `WaitingForReview`, `Done`, `Failed`, `Cancelled` | Lifecycle only. `WaitingForChildren` = parent's own work is done, waiting on its children. |
 | `PlanningPhase` | `None`, `Active`, `Finalized` | Parent-only marker. `Active` ≈ legacy `Planning`; `Finalized` ≈ legacy `Planned`. |
 | `BlockedByTaskId` | nullable FK | Replaces legacy `Waiting`. A queued row with `BlockedByTaskId != NULL` is skipped by the picker. |
 | `ReviewFeedback` | nullable string | Reviewer's rejection comment. Set by `RejectToQueueAsync`; consumed and cleared by `QueueService` on the next re-run (resumes the Claude session with it as the next-turn prompt). |
@@ -66,24 +66,46 @@ Interfaces (e.g. `IQueueWaker`, `IPrimeClock`, `ITaskStateService`) live in an `
 Allowed transitions (enforced by `TaskStateService`):
 
 ```
-Idle             → Queued | Running (RunNow)
-Queued           → Running | Cancelled | Idle
-Running          → WaitingForReview (standalone success) | Done (planning child success) | Failed | Cancelled
-WaitingForReview → Done (approve: merges worktree first; conflicts keep it in WaitingForReview) | Queued (reject-rerun, +feedback) | Idle (reject-park) | Cancelled
-Done             → Idle (re-run)
-Failed           → Idle | Queued
-Cancelled        → Idle | Queued
+Idle               → Queued | Running (RunNow)
+Queued             → Running | Cancelled | Idle
+Running            → WaitingForReview (standalone success, no children)
+                   | WaitingForChildren (parent with pending children)
+                   | Done (planning/improvement child success) | Failed | Cancelled
+WaitingForChildren → WaitingForReview (all children terminal) | Cancelled
+WaitingForReview   → Done (approve) | Queued (reject-rerun, +feedback) | Idle (reject-park) | Cancelled
+Done               → Idle (re-run)
+Failed             → Idle | Queued
+Cancelled          → Idle | Queued
 ```
 
-Only standalone tasks (`ParentTaskId == null`) route to `WaitingForReview` on success. Planning children go straight to `Done` so the sequential chain (which advances on terminal states) is unaffected. `TaskRunner.HandleSuccess` makes this choice; review transitions live in `TaskStateService` (`SubmitForReviewAsync`, `ApproveReviewAsync`, `RejectToQueueAsync`, `RejectToIdleAsync`, `ClearReviewFeedbackAsync`).
+**Unified parent model.** Every parent — planning *or* improvement — flows
+`… → WaitingForChildren → WaitingForReview → Done`, advanced by the single
+`TaskStateService.TryAdvanceParentAsync` (surfaces any `WaitingForChildren` parent for
+review once all children are terminal; failed/cancelled children are annotated on the
+result, not wedged). A planning parent enters `WaitingForChildren` at
+`FinalizePlanningAsync` (or `WaitingForReview` directly if it has no children); an
+improvement parent enters it from `TaskRunner.HandleSuccess` when its run spawned
+children. Planning/improvement **children** still go straight to `Done` (no individual
+review) — only the parent is reviewed.
+
+**Approve = merge the whole unit.** `ApproveReview`/`review_task` approve, for a task
+that has children, drives `PlanningMergeOrchestrator` (merges the parent worktree if
+Active + each `Done` child in order, sets the parent `Done`, and on a mid-merge
+conflict pauses for `ContinuePlanningMerge`/`AbortPlanningMerge`). Childless tasks use
+`TaskMergeService.ApproveAndMergeAsync`. There is no separate "Merge all" entry —
+approve is the single review+merge action. Review transitions live in `TaskStateService`
+(`SubmitForReviewAsync`, `SubmitForChildrenAsync`, `ApproveReviewAsync`,
+`RejectToQueueAsync`, `RejectToIdleAsync`, `ClearReviewFeedbackAsync`).
 
 ## Planning Flow
 
 `PlanningSessionManager.FinalizeAsync` is the single path:
 
-1. `_state.FinalizePlanningAsync(parent)` flips parent `PlanningPhase` to `Finalized`.
-2. `PlanningChainCoordinator.SetupChainAsync` attaches the `agent` tag to every child, enqueues child[0], and `BlockOn`s child[i] → child[i-1].
-3. The first child is woken automatically; successors unblock as their predecessor reaches a terminal state via `OnChildFinishedAsync`.
+1. `_state.FinalizePlanningAsync(parent)` flips parent `PlanningPhase` to `Finalized` and sets `Status` to `WaitingForChildren` (or `WaitingForReview` if the parent has no children).
+2. `PlanningChainCoordinator.SetupChainAsync(parent, enqueue: false)` establishes the blocked-by chain (`BlockOn`s child[i] → child[i-1]) but **leaves children `Idle`** — finalize never auto-queues. Queueing is a deliberate user action: `QueuePlanAsync` (hub `QueuePlanningSubtasksAsync`, the "Queue plan" button) calls `SetupChainAsync(parent, enqueue: true)`, which sets every non-terminal child `Queued` and re-applies the chain.
+3. Once queued, the first child is woken automatically; successors unblock as their predecessor reaches a terminal state via `OnChildFinishedAsync`.
+
+A child that hits a roadblock (fails, or reports `CLAUDEDO_BLOCKED` roadblocks) does **not** advance the parent — the parent stays in `WaitingForChildren` until every child is terminal. The UI surfaces blocked children on the parent's Session tab (`ChildOutcomes` + a "children need attention" band) so the roadblock is visible without forcing a transition.
 
 `TaskRepository.FinalizePlanningAsync` no longer exists. The `Mark*Async` repository helpers are `internal` — only `TaskStateService` calls them.
 
@@ -121,7 +143,7 @@ Each CLI invocation is recorded in the `task_runs` table via `TaskRunRepository`
 
 ## SignalR Hub
 
-**WorkerHub** methods: `Ping`, `GetActive`, `RunNow`, `CancelTask`, `WakeQueue`, `ContinueTask`, `ResetTask`, `ApproveReview(taskId, targetBranch) -> MergeResultDto` (merges worktree then transitions to Done; on conflict stays WaitingForReview), `PreviewMerge(taskId, targetBranch) -> MergePreviewDto` (non-destructive mergeability check), `RejectReviewToQueue`, `RejectReviewToIdle`, `CancelReview`, `GetAgents`, `RefreshAgents`, `GetAppSettings`, `UpdateAppSettings`, `CleanupFinishedWorktrees`, `ResetAllWorktrees`, `MergeTask`, `GetMergeTargets`, `UpdateList`, `UpdateListConfig`, `GetListConfig`, `UpdateTaskAgentSettings`, `GetWeekReport`, `GenerateWeekReport`, `GetDailyNotes`, `AddDailyNote`, `UpdateDailyNote`, `DeleteDailyNote`, `RunDailyPrepNow`, `ClearMyDay`, `GetLastPrepLog`
+**WorkerHub** methods: `Ping`, `GetActive`, `RunNow`, `CancelTask`, `WakeQueue`, `ContinueTask`, `ResetTask`, `ApproveReview(taskId, targetBranch) -> MergeResultDto` (childless task: merges its worktree then Done, conflict stays WaitingForReview; task with children: drives `PlanningMergeOrchestrator` to merge the whole unit), `ContinuePlanningMerge` / `AbortPlanningMerge` (resolve a unit-merge conflict), `PreviewMerge(taskId, targetBranch) -> MergePreviewDto` (non-destructive mergeability check), `RejectReviewToQueue`, `RejectReviewToIdle`, `CancelReview`, `GetAgents`, `RefreshAgents`, `GetAppSettings`, `UpdateAppSettings`, `CleanupFinishedWorktrees`, `ResetAllWorktrees`, `MergeTask`, `GetMergeTargets`, `UpdateList`, `UpdateListConfig`, `GetListConfig`, `UpdateTaskAgentSettings`, `GetWeekReport`, `GenerateWeekReport`, `GetDailyNotes`, `AddDailyNote`, `UpdateDailyNote`, `DeleteDailyNote`, `RunDailyPrepNow`, `ClearMyDay`, `GetLastPrepLog`
 
 **HubBroadcaster** events: `TaskStarted`, `TaskFinished`, `TaskMessage`, `WorktreeUpdated`, `TaskUpdated`, `RunCreated`, `ListUpdated`, `PrimeFired`, `PrepStarted`, `PrepLine`, `PrepFinished`
 

src/ClaudeDo.Worker/ClaudeDo.Worker.csproj

@@ -27,6 +27,7 @@
     <OutputType>WinExe</OutputType>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
+    <ApplicationIcon>ClaudeTaskWorker.ico</ApplicationIcon>
   </PropertyGroup>
 
   <ItemGroup>

src/ClaudeDo.Worker/External/ConfigMcpTools.cs

@@ -61,4 +61,14 @@ public sealed class ConfigMcpTools
         await _tasks.UpdateAgentSettingsAsync(taskId, model.NullIfBlank(), systemPrompt.NullIfBlank(), agentPath.NullIfBlank(), maxTurns, cancellationToken);
         await _broadcaster.TaskUpdated(taskId);
     }
+
+    [McpServerTool, Description("Get per-task config overrides (model/system prompt/agent path/max turns). Returns null if no override is set on this task.")]
+    public async Task<TaskConfigDto?> GetTaskConfig(string taskId, CancellationToken cancellationToken)
+    {
+        var task = await _tasks.GetByIdAsync(taskId, cancellationToken)
+            ?? throw new InvalidOperationException($"Task {taskId} not found.");
+        if (task.Model is null && task.SystemPrompt is null && task.AgentPath is null && task.MaxTurns is null)
+            return null;
+        return new TaskConfigDto(task.Model, task.SystemPrompt, task.AgentPath, task.MaxTurns);
+    }
 }

src/ClaudeDo.Worker/External/ExternalMcpService.cs

@@ -104,7 +104,7 @@ public sealed class ExternalMcpService
 
     [McpServerTool, Description(
         "List tasks in a given list. Optionally filter by creator (createdBy) and/or status. " +
-        "Valid status values: Idle, Queued, Running, WaitingForReview, Done, Failed, Cancelled.")]
+        "Valid status values: Idle, Queued, Running, WaitingForReview, WaitingForChildren, Done, Failed, Cancelled.")]
     public async Task<IReadOnlyList<TaskDto>> ListTasks(
         string listId,
         string? createdBy,
@@ -116,7 +116,7 @@ public sealed class ExternalMcpService
         {
             if (!Enum.TryParse<TaskStatus>(status, ignoreCase: true, out var parsed))
                 throw new InvalidOperationException(
-                    $"Unknown status '{status}'. Valid values: Idle, Queued, Running, WaitingForReview, Done, Failed, Cancelled.");
+                    $"Unknown status '{status}'. Valid values: Idle, Queued, Running, WaitingForReview, WaitingForChildren, Done, Failed, Cancelled.");
             statusFilter = parsed;
         }
 
@@ -360,13 +360,14 @@ public sealed class ExternalMcpService
     [McpServerTool, Description("Returns all valid task status values and their meanings. Use before filtering by status or interpreting task state.")]
     public Task<IReadOnlyList<StatusValueDto>> GetTaskStatusValues() =>
         Task.FromResult<IReadOnlyList<StatusValueDto>>([
-            new("Idle",      "Not yet queued; task is editable and will not run until enqueued."),
-            new("Queued",    "Waiting for an agent execution slot. Tasks with a blocker (BlockedByTaskId) are skipped by the queue picker until their predecessor finishes."),
-            new("Running",   "Agent is actively executing the task; cannot be edited or deleted until cancelled."),
-            new("WaitingForReview", "Run finished successfully and awaits review. Use review_task: approve (→ Done), reject_rerun (→ Queued, resumes the session with feedback), reject_park (→ Idle), or cancel (→ Cancelled)."),
-            new("Done",      "Completed successfully and approved; result text is available in the result field. Can be reset to Idle for re-execution."),
-            new("Failed",    "Execution ended with an error; task can be reset to Idle or re-queued directly."),
-            new("Cancelled", "Cancelled by the user; task can be reset to Idle or re-queued directly."),
+            new("Idle",                "Not yet queued; task is editable and will not run until enqueued."),
+            new("Queued",              "Waiting for an agent execution slot. Tasks with a blocker (BlockedByTaskId) are skipped by the queue picker until their predecessor finishes."),
+            new("Running",             "Agent is actively executing the task; cannot be edited or deleted until cancelled."),
+            new("WaitingForReview",    "Run finished successfully and awaits review. Use review_task: approve (→ Done), reject_rerun (→ Queued, resumes the session with feedback), reject_park (→ Idle), or cancel (→ Cancelled)."),
+            new("WaitingForChildren",  "Planning parent whose child tasks are still running. The parent resumes once all children reach a terminal state."),
+            new("Done",                "Completed successfully and approved; result text is available in the result field. Can be reset to Idle for re-execution."),
+            new("Failed",              "Execution ended with an error; task can be reset to Idle or re-queued directly."),
+            new("Cancelled",           "Cancelled by the user; task can be reset to Idle or re-queued directly."),
         ]);
 
     // ── Worktree / git tools ──────────────────────────────────────────────────
@@ -428,7 +429,7 @@ public sealed class ExternalMcpService
         "Merge a task's worktree branch into targetBranch (default: main). " +
         "noFf=true (default): always creates a merge commit (--no-ff). " +
         "dryRun=true: validates preconditions only, does not perform the merge; merged=false in the result means 'not actually merged'. " +
-        "Refuses if task status is not Done (status values: Idle, Queued, Running, Done, Failed, Cancelled). " +
+        "allowWaitingForReview=true: also allows merging a task in WaitingForReview (default false, which only allows Done). " +
         "On success: merged=true, mergeCommit contains the new merge commit SHA. " +
         "On conflict: the merge is cleanly aborted (no half-merged state left); merged=false and conflicts lists the affected files.")]
     public async Task<MergeTaskResultDto> MergeTask(
@@ -436,14 +437,17 @@ public sealed class ExternalMcpService
         string targetBranch = "main",
         bool noFf = true,
         bool dryRun = false,
+        bool allowWaitingForReview = false,
         CancellationToken cancellationToken = default)
     {
         var task = await _tasks.GetByIdAsync(taskId, cancellationToken)
             ?? throw new InvalidOperationException($"Task {taskId} not found.");
-        if (task.Status != TaskStatus.Done)
+        var canMerge = task.Status == TaskStatus.Done ||
+                       (allowWaitingForReview && task.Status == TaskStatus.WaitingForReview);
+        if (!canMerge)
             throw new InvalidOperationException(
                 $"Task must be Done to merge (current status: {task.Status}). " +
-                "Valid statuses for merge: Done.");
+                "Pass allowWaitingForReview=true to also merge a WaitingForReview task.");
 
         var list = await _lists.GetByIdAsync(task.ListId, cancellationToken);
 
@@ -528,7 +532,37 @@ public sealed class ExternalMcpService
 
         var path = wt.Path;
         var result = await _maintenance.ForceRemoveAsync(taskId, cancellationToken);
-        return new CleanupWorktreeResult(result.Removed, path, result.Removed);
+        return new CleanupWorktreeResult(result.Removed, path, result.BranchDeleted);
+    }
+
+    [McpServerTool, Description(
+        "Send a follow-up prompt to an existing Claude session (multi-turn continuation). " +
+        "The agent resumes using --resume with the session ID from the task's last run. " +
+        "Runs in the override execution slot; throws if the slot is busy — try again later. " +
+        "Returns a status string from the execution slot.")]
+    public async Task<string> ContinueTask(
+        string taskId,
+        string followUpPrompt,
+        CancellationToken cancellationToken)
+    {
+        if (string.IsNullOrWhiteSpace(followUpPrompt))
+            throw new InvalidOperationException("followUpPrompt is required.");
+
+        string result;
+        try
+        {
+            result = await _queue.ContinueTask(taskId, followUpPrompt);
+        }
+        catch (InvalidOperationException)
+        {
+            throw new InvalidOperationException("Override slot busy. Try again later.");
+        }
+        catch (KeyNotFoundException)
+        {
+            throw new InvalidOperationException($"Task {taskId} not found.");
+        }
+        await _broadcaster.TaskUpdated(taskId);
+        return result;
     }
 
     // ── Daily prep ───────────────────────────────────────────────────────────

src/ClaudeDo.Worker/Hub/WorkerHub.cs

@@ -56,6 +56,9 @@ public record ForceRemoveResultDto(bool Removed, string? Reason);
 public record MergeResultDto(string Status, IReadOnlyList<string> ConflictFiles, string? ErrorMessage);
 public record MergePreviewDto(string Status, IReadOnlyList<string> ConflictFiles, int ChangedFileCount);
 public record MergeTargetsDto(string DefaultBranch, IReadOnlyList<string> LocalBranches);
+public record MergeConflictsDto(string TaskId, IReadOnlyList<ConflictFileDto> Files);
+public record ConflictFileDto(string Path, IReadOnlyList<ConflictHunkDto> Hunks);
+public record ConflictHunkDto(string Ours, string Theirs, string? Base);
 public record UpdateListDto(string Id, string Name, string? WorkingDir, string DefaultCommitType);
 public record UpdateListConfigDto(string ListId, string? Model, string? SystemPrompt, string? AgentPath, int? MaxTurns = null);
 public record UpdateTaskAgentSettingsDto(string TaskId, string? Model, string? SystemPrompt, string? AgentPath, int? MaxTurns = null);
@@ -328,6 +331,49 @@ public sealed class WorkerHub : Microsoft.AspNetCore.SignalR.Hub
             return new MergePreviewDto(p.Status, p.ConflictFiles, p.ChangedFileCount);
         });
 
+    public Task<MergeResultDto> StartConflictMerge(string taskId, string targetBranch)
+        => HubGuard(async () =>
+        {
+            var r = await _mergeService.MergeAsync(
+                taskId, targetBranch ?? "", removeWorktree: false, "Merge task",
+                leaveConflictsInTree: true, CancellationToken.None);
+            if (r.Status == TaskMergeService.StatusBlocked)
+                throw new HubException(r.ErrorMessage ?? "merge blocked");
+            return new MergeResultDto(r.Status, r.ConflictFiles, r.ErrorMessage);
+        });
+
+    public Task<MergeConflictsDto> GetMergeConflicts(string taskId)
+        => HubGuard(async () =>
+        {
+            var c = await _mergeService.GetConflictsAsync(taskId, CancellationToken.None);
+            return new MergeConflictsDto(
+                c.TaskId,
+                c.Files.Select(f => new ConflictFileDto(
+                    f.Path,
+                    new[] { new ConflictHunkDto(f.Ours, f.Theirs, f.Base) })).ToList());
+        });
+
+    public Task WriteConflictResolution(string taskId, string path, string resolvedContent)
+        => HubGuard(() => _mergeService.WriteResolutionAsync(
+            taskId, path, resolvedContent ?? "", CancellationToken.None));
+
+    public Task<MergeResultDto> ContinueMerge(string taskId)
+        => HubGuard(async () =>
+        {
+            var r = await _mergeService.ContinueMergeAsync(taskId, CancellationToken.None);
+            if (r.Status == TaskMergeService.StatusBlocked)
+                throw new HubException(r.ErrorMessage ?? "continue failed");
+            return new MergeResultDto(r.Status, r.ConflictFiles, r.ErrorMessage);
+        });
+
+    public Task AbortMerge(string taskId)
+        => HubGuard(async () =>
+        {
+            var r = await _mergeService.AbortMergeAsync(taskId, CancellationToken.None);
+            if (r.Status == TaskMergeService.StatusBlocked)
+                throw new HubException(r.ErrorMessage ?? "abort failed");
+        });
+
     public async Task UpdateList(UpdateListDto dto)
     {
         using var ctx = _dbFactory.CreateDbContext();
@@ -395,6 +441,16 @@ public sealed class WorkerHub : Microsoft.AspNetCore.SignalR.Hub
     public Task<MergeResultDto> ApproveReview(string taskId, string targetBranch)
         => HubGuard(async () =>
         {
+            bool hasChildren;
+            await using (var ctx = await _dbFactory.CreateDbContextAsync(CancellationToken.None))
+                hasChildren = await ctx.Tasks.AnyAsync(t => t.ParentTaskId == taskId, CancellationToken.None);
+
+            if (hasChildren)
+            {
+                await _planningMergeOrchestrator.StartAsync(taskId, targetBranch ?? "", CancellationToken.None);
+                return new MergeResultDto(TaskMergeService.StatusMerged, Array.Empty<string>(), null);
+            }
+
             var r = await _mergeService.ApproveAndMergeAsync(taskId, targetBranch ?? "", CancellationToken.None);
             if (r.Status == TaskMergeService.StatusBlocked)
                 throw new HubException(r.ErrorMessage ?? "approve failed");
@@ -504,10 +560,6 @@ public sealed class WorkerHub : Microsoft.AspNetCore.SignalR.Hub
             };
         }, "planning task not found");
 
-    public Task MergeAllPlanning(string planningTaskId, string targetBranch)
-        => HubGuard(() => _planningMergeOrchestrator.StartAsync(planningTaskId, targetBranch ?? "", CancellationToken.None),
-            "planning task not found");
-
     public async Task ContinuePlanningMerge(string planningTaskId)
     {
         try { await _planningMergeOrchestrator.ContinueAsync(planningTaskId, CancellationToken.None); }

src/ClaudeDo.Worker/Lifecycle/TaskMergeService.cs

@@ -23,6 +23,16 @@ public sealed record MergePreviewResult(
     IReadOnlyList<string> ConflictFiles,
     int ChangedFileCount);
 
+public sealed record MergeConflicts(
+    string TaskId,
+    IReadOnlyList<ConflictFileContent> Files);
+
+public sealed record ConflictFileContent(
+    string Path,
+    string Ours,
+    string Theirs,
+    string? Base);
+
 public sealed class TaskMergeService
 {
     public const string StatusMerged   = "merged";
@@ -75,6 +85,15 @@ public sealed class TaskMergeService
         await _broadcaster.WorktreeUpdated(taskId);
     }
 
+    private async Task ApproveIfWaitingForReviewAsync(TaskEntity task, CancellationToken ct)
+    {
+        // A merged worktree means the work is integrated, so the task must reach Done.
+        // MarkWorktreeMergedAsync only flips the worktree state; transition the task
+        // itself when it was still awaiting review (a Done task is already terminal).
+        if (task.Status == TaskStatus.WaitingForReview)
+            await _state.ApproveReviewAsync(task.Id, ct);
+    }
+
     public async Task<MergeResult> MergeAsync(
         string taskId,
         string targetBranch,
@@ -158,6 +177,7 @@ public sealed class TaskMergeService
         }
 
         await MarkWorktreeMergedAsync(taskId, ct);
+        await ApproveIfWaitingForReviewAsync(task, ct);
 
         _logger.LogInformation(
             "Merged task {TaskId} branch {Branch} into {Target} (remove worktree: {Remove})",
@@ -177,7 +197,7 @@ public sealed class TaskMergeService
 
     public async Task<MergeResult> ContinueMergeAsync(string taskId, CancellationToken ct)
     {
-        var (_, list, wt) = await LoadMergeContextAsync(taskId, ct);
+        var (task, list, wt) = await LoadMergeContextAsync(taskId, ct);
 
         if (wt is null) return Blocked("task has no worktree");
         if (wt.State != WorktreeState.Active) return Blocked($"worktree state is {wt.State}");
@@ -195,6 +215,7 @@ public sealed class TaskMergeService
         catch (Exception ex) { return Blocked($"commit failed: {ex.Message}"); }
 
         await MarkWorktreeMergedAsync(taskId, ct);
+        await ApproveIfWaitingForReviewAsync(task, ct);
         _logger.LogInformation("Continued merge of task {TaskId} branch {Branch}", taskId, wt.BranchName);
 
         return new MergeResult(StatusMerged, Array.Empty<string>(), null);
@@ -217,6 +238,35 @@ public sealed class TaskMergeService
         return new MergeResult(StatusAborted, Array.Empty<string>(), null);
     }
 
+    public async Task<MergeConflicts> GetConflictsAsync(string taskId, CancellationToken ct)
+    {
+        var (_, list, _) = await LoadMergeContextAsync(taskId, ct);
+        if (string.IsNullOrWhiteSpace(list.WorkingDir))
+            throw new InvalidOperationException("list has no working directory");
+
+        var files = await _git.ListConflictedFilesAsync(list.WorkingDir, ct);
+        var result = new List<ConflictFileContent>(files.Count);
+        foreach (var path in files)
+        {
+            var ours   = await _git.ShowStageAsync(list.WorkingDir, 2, path, ct) ?? "";
+            var theirs = await _git.ShowStageAsync(list.WorkingDir, 3, path, ct) ?? "";
+            var @base  = await _git.ShowStageAsync(list.WorkingDir, 1, path, ct);
+            result.Add(new ConflictFileContent(path, ours, theirs, @base));
+        }
+        return new MergeConflicts(taskId, result);
+    }
+
+    public async Task WriteResolutionAsync(string taskId, string path, string content, CancellationToken ct)
+    {
+        var (_, list, _) = await LoadMergeContextAsync(taskId, ct);
+        if (string.IsNullOrWhiteSpace(list.WorkingDir))
+            throw new InvalidOperationException("list has no working directory");
+
+        var full = Path.Combine(list.WorkingDir, path.Replace('/', Path.DirectorySeparatorChar));
+        await File.WriteAllTextAsync(full, content, ct);
+        await _git.AddPathAsync(list.WorkingDir, path, ct);
+    }
+
     public async Task<MergeTargets> GetTargetsAsync(string taskId, CancellationToken ct)
     {
         var (_, list, _) = await LoadMergeContextAsync(taskId, ct);
@@ -274,12 +324,10 @@ public sealed class TaskMergeService
             ? await _git.GetCurrentBranchAsync(list.WorkingDir, ct)
             : targetBranch;
 
-        var merge = await MergeAsync(taskId, target, removeWorktree: false, $"Merge {wt.BranchName}", ct);
-        if (merge.Status != StatusMerged)
-            return merge;
-
-        var approve = await _state.ApproveReviewAsync(taskId, ct);
-        return approve.Ok ? merge : Blocked(approve.Reason ?? "approve failed");
+        // MergeAsync transitions the task WaitingForReview -> Done on a successful merge.
+        // Remove the worktree on approve (matching the unit-merge path) so merged
+        // worktrees don't pile up; the merge commit on the target branch is the record.
+        return await MergeAsync(taskId, target, removeWorktree: true, $"Merge {wt.BranchName}", ct);
     }
 
     private static MergeResult Blocked(string reason) =>

src/ClaudeDo.Worker/Planning/PlanningChainCoordinator.cs

@@ -19,17 +19,21 @@ public sealed class PlanningChainCoordinator
         _state = state;
     }
 
-    // Sets up a sequential queue chain over a planning parent's children.
-    // - First non-terminal child gets Status=Queued, BlockedByTaskId=null.
-    // - Each subsequent non-terminal child gets Status=Queued + BlockedByTaskId=<predecessor>,
+    // Sets up a sequential chain over a planning parent's children.
+    // - First non-terminal child gets BlockedByTaskId=null.
+    // - Each subsequent non-terminal child gets BlockedByTaskId=<predecessor>,
     //   so the picker skips them until the predecessor finishes.
+    // - When enqueue is true, each non-terminal child is also set to Status=Queued
+    //   (the user-driven "Queue plan"). When false (finalize), children are left
+    //   Idle and only the blocked-by links are established, so nothing runs until
+    //   the user queues the plan.
     // - Terminal children (Done/Failed/Cancelled) are left untouched; they are
     //   skipped when computing predecessors so a re-run on a partially executed
     //   chain leaves history alone but still reshapes the tail.
     // - Running children abort the operation — the chain cannot be reshaped while
     //   one of its members is mid-flight.
     // Returns the number of children placed in the chain.
-    internal async Task<int> SetupChainAsync(string parentTaskId, CancellationToken ct = default)
+    internal async Task<int> SetupChainAsync(string parentTaskId, bool enqueue, CancellationToken ct = default)
     {
         await using var ctx = await _dbFactory.CreateDbContextAsync(ct);
         var parent = await ctx.Tasks.FirstOrDefaultAsync(t => t.Id == parentTaskId, ct)
@@ -56,7 +60,8 @@ public sealed class PlanningChainCoordinator
         var state = _state();
         for (int i = 0; i < sequenceable.Count; i++)
         {
-            await state.EnqueueAsync(sequenceable[i].Id, ct);
+            if (enqueue)
+                await state.EnqueueAsync(sequenceable[i].Id, ct);
             if (i == 0)
                 await state.UnblockAsync(sequenceable[i].Id, ct);
             else
@@ -81,18 +86,14 @@ public sealed class PlanningChainCoordinator
         if (phase != PlanningPhase.Finalized)
             throw new InvalidOperationException("Plan must be finalized before it can be queued.");
 
-        return await SetupChainAsync(parentTaskId, ct);
+        return await SetupChainAsync(parentTaskId, enqueue: true, ct);
     }
 
     public async Task<string?> OnChildFinishedAsync(
         string childTaskId, TaskStatus finalStatus, CancellationToken ct = default)
     {
-        if (finalStatus != TaskStatus.Done) return null;
-
         await using var ctx = await _dbFactory.CreateDbContextAsync(ct);
         // The successor is whichever sibling explicitly blocks on this child.
-        // No status check — UnblockAsync flips legacy Waiting to Queued and is a no-op
-        // for already-Queued rows in the new layout.
         var nextId = await ctx.Tasks
             .AsNoTracking()
             .Where(t => t.BlockedByTaskId == childTaskId)
@@ -101,7 +102,16 @@ public sealed class PlanningChainCoordinator
             .FirstOrDefaultAsync(ct);
         if (nextId is null) return null;
 
-        await _state().UnblockAsync(nextId, ct);
-        return nextId;
+        if (finalStatus == TaskStatus.Done)
+        {
+            await _state().UnblockAsync(nextId, ct);
+            return nextId;
+        }
+
+        // Child failed or was cancelled: cancel the immediate successor so the chain
+        // is not left wedged. CancelAsync triggers OnChildTerminalAsync → OnChildFinishedAsync
+        // for that successor, cascading cancellation through the rest of the chain.
+        await _state().CancelAsync(nextId, DateTime.UtcNow, ct);
+        return null;
     }
 }

src/ClaudeDo.Worker/Planning/PlanningMcpService.cs

@@ -135,7 +135,7 @@ public sealed class PlanningMcpService
         await BroadcastTaskUpdatedAsync(ctx.ParentTaskId, cancellationToken);
     }
 
-    [McpServerTool, Description("Finalize the planning session, promoting all draft child tasks to queued or manual status.")]
+    [McpServerTool, Description("Finalize the planning session. Child tasks are left idle and chain-linked (each blocked by its predecessor); they are NOT queued automatically — the user queues the plan from the app when ready. The queueAgentTasks argument is accepted for compatibility but ignored.")]
     public async Task<int> Finalize(
         bool queueAgentTasks,
         CancellationToken cancellationToken)
@@ -149,8 +149,10 @@ public sealed class PlanningMcpService
 
         var children = await _tasks.GetChildrenAsync(ctx.ParentTaskId, cancellationToken);
         int count = children.Count;
-        if (queueAgentTasks && children.Count > 0)
-            count = await _chain.SetupChainAsync(ctx.ParentTaskId, cancellationToken);
+        // Establish the blocked-by chain but leave children Idle; queueing is a
+        // deliberate user action ("Queue plan"), never an automatic finalize step.
+        if (children.Count > 0)
+            count = await _chain.SetupChainAsync(ctx.ParentTaskId, enqueue: false, cancellationToken);
 
         foreach (var c in children)
             await BroadcastTaskUpdatedAsync(c.Id, cancellationToken);

src/ClaudeDo.Worker/Planning/PlanningMergeOrchestrator.cs

@@ -199,6 +199,10 @@ public sealed class PlanningMergeOrchestrator
         parent.FinishedAt = DateTime.UtcNow;
         await ctx.SaveChangesAsync(ct);
 
+        // Surface the Done transition to the UI. Without this the parent row stays
+        // visibly stuck in WaitingForReview even though the unit merge completed.
+        await _broadcaster.TaskUpdated(parentTaskId);
+
         // Only planning builds an integration branch via the aggregator; skip cleanup otherwise.
         if (isPlanning)
         {

src/ClaudeDo.Worker/Planning/PlanningSessionManager.cs

@@ -209,12 +209,13 @@ public sealed class PlanningSessionManager
             throw new InvalidOperationException(
                 finalizeResult.Reason ?? $"Could not finalize planning for task {taskId}.");
 
-        int count = 0;
+        // Establish the blocked-by chain but leave children Idle; queueing is a
+        // deliberate user action ("Queue plan"), never an automatic finalize step.
+        // queueAgentTasks is accepted for compatibility but no longer auto-queues.
         var children = await tasks.GetChildrenAsync(taskId, ct);
-        if (queueAgentTasks && children.Count > 0)
-            count = await _chain.SetupChainAsync(taskId, ct);
-        else
-            count = children.Count;
+        int count = children.Count;
+        if (children.Count > 0)
+            count = await _chain.SetupChainAsync(taskId, enqueue: false, ct);
 
         // Best-effort cleanup — don't block finalization on git state.
         await TryCleanupWorktreeAsync(taskId, lists, settings, ct);

src/ClaudeDo.Worker/Prime/DailyPrepPrompt.cs

@@ -8,10 +8,13 @@ public static class DailyPrepPrompt
     public static string LogPath() =>
         System.IO.Path.Combine(ClaudeDo.Data.Paths.AppDataRoot(), "logs", "daily-prep.log");
 
-    public static string BuildArgs(int maxTurns) =>
-        "-p --output-format stream-json --verbose --permission-mode acceptEdits " +
-        $"--max-turns {maxTurns} " +
-        $"--allowedTools {CandidatesTool} {SetMyDayTool}";
+    public static IReadOnlyList<string> BuildArgs(int maxTurns) =>
+    [
+        "-p", "--output-format", "stream-json", "--verbose",
+        "--permission-mode", "acceptEdits",
+        "--max-turns", maxTurns.ToString(),
+        "--allowedTools", CandidatesTool, SetMyDayTool,
+    ];
 
     public static string BuildPrompt(int maxTasks, DateOnly today) =>
         ClaudeDo.Data.PromptFiles.Render(

src/ClaudeDo.Worker/Refine/RefinePrompt.cs

@@ -12,13 +12,22 @@ public static class RefinePrompt
     public static string LogPath(string taskId) =>
         System.IO.Path.Combine(Paths.AppDataRoot(), "logs", $"refine-{Short(taskId)}.log");
 
-    public static string BuildArgs(int maxTurns, bool canReadRepo)
+    public static IReadOnlyList<string> BuildArgs(int maxTurns, bool canReadRepo)
     {
-        var tools = canReadRepo
-            ? $"{GetTaskTool} {UpdateTaskTool} {AddSubtaskTool} Read Grep Glob"
-            : $"{GetTaskTool} {UpdateTaskTool} {AddSubtaskTool}";
-        return "-p --output-format stream-json --verbose --permission-mode acceptEdits " +
-               $"--max-turns {maxTurns} --allowedTools {tools}";
+        var args = new List<string>
+        {
+            "-p", "--output-format", "stream-json", "--verbose",
+            "--permission-mode", "acceptEdits",
+            "--max-turns", maxTurns.ToString(),
+            "--allowedTools", GetTaskTool, UpdateTaskTool, AddSubtaskTool,
+        };
+        if (canReadRepo)
+        {
+            args.Add("Read");
+            args.Add("Grep");
+            args.Add("Glob");
+        }
+        return args;
     }
 
     public static string BuildPrompt(TaskEntity task, IEnumerable<SubtaskEntity> subtasks)

src/ClaudeDo.Worker/Refine/RefineRunner.cs

@@ -10,7 +10,7 @@ namespace ClaudeDo.Worker.Refine;
 public sealed class RefineRunner : IRefineRunner
 {
     private static readonly TimeSpan RunTimeout = TimeSpan.FromMinutes(5);
-    private const int MaxTurns = 25;
+    private const int MaxTurns = 5;
 
     private readonly IClaudeProcess _claude;
     private readonly IDbContextFactory<ClaudeDoDbContext> _dbFactory;

src/ClaudeDo.Worker/Report/WeekReportService.cs

@@ -69,7 +69,12 @@ public sealed class WeekReportService : IWeekReportService
             // alphanumerics, dashes and dots only.
             var safeModel = new string(model.Where(c => char.IsLetterOrDigit(c) || c is '-' or '.').ToArray());
             if (safeModel.Length == 0) safeModel = "sonnet";
-            var args = $"-p --output-format stream-json --verbose --permission-mode auto --model {safeModel}";
+            IReadOnlyList<string> args =
+            [
+                "-p", "--output-format", "stream-json", "--verbose",
+                "--permission-mode", "auto",
+                "--model", safeModel,
+            ];
             var result = await _claude.RunAsync(args, prompt, Path.GetTempPath(), _ => Task.CompletedTask, ct);
             if (!result.IsSuccess)
                 throw new InvalidOperationException(result.ErrorMarkdown ?? "Claude could not generate the report.");

src/ClaudeDo.Worker/Runner/ClaudeArgsBuilder.cs

@@ -27,12 +27,12 @@ public sealed class ClaudeArgsBuilder
         required = new[] { "summary" },
     });
 
-    public string Build(ClaudeRunConfig config)
+    public IReadOnlyList<string> Build(ClaudeRunConfig config)
     {
         var args = new List<string>
         {
             "-p",
-            "--output-format stream-json",
+            "--output-format", "stream-json",
             "--verbose",
         };
 
@@ -40,50 +40,55 @@ public sealed class ClaudeArgsBuilder
             || config.PermissionMode.Equals("bypassPermissions", StringComparison.OrdinalIgnoreCase)
             ? "auto"
             : config.PermissionMode;
-        args.Add($"--permission-mode {permissionMode}");
+        args.Add("--permission-mode");
+        args.Add(permissionMode);
 
         if (config.Model is not null)
-            args.Add($"--model {config.Model}");
+        {
+            args.Add("--model");
+            args.Add(config.Model);
+        }
 
         if (config.MaxTurns is int turns && turns > 0)
-            args.Add($"--max-turns {turns}");
+        {
+            args.Add("--max-turns");
+            args.Add(turns.ToString());
+        }
 
         if (config.SystemPrompt is not null)
-            args.Add($"--append-system-prompt {Escape(config.SystemPrompt)}");
+        {
+            args.Add("--append-system-prompt");
+            args.Add(config.SystemPrompt);
+        }
 
         if (config.AgentPath is not null)
         {
             var agentJson = JsonSerializer.Serialize(new[] { new { file = config.AgentPath } });
-            args.Add($"--agents {Escape(agentJson)}");
+            args.Add("--agents");
+            args.Add(agentJson);
         }
 
-        args.Add($"--json-schema {Escape(ResultSchema)}");
+        args.Add("--json-schema");
+        args.Add(ResultSchema);
 
         if (config.McpConfigPath is not null)
-            args.Add($"--mcp-config {Escape(config.McpConfigPath)}");
+        {
+            args.Add("--mcp-config");
+            args.Add(config.McpConfigPath);
+        }
 
         if (config.AllowedTools is not null)
-            args.Add($"--allowedTools {config.AllowedTools}");
+        {
+            args.Add("--allowedTools");
+            args.Add(config.AllowedTools);
+        }
 
         if (config.ResumeSessionId is not null)
-            args.Add($"--resume {config.ResumeSessionId}");
-
-        return string.Join(" ", args);
-    }
-
-    private static string Escape(string value)
-    {
-        if (value.Contains(' ') || value.Contains('"') || value.Contains('\'')
-            || value.Contains('\t') || value.Contains('\n') || value.Contains('\r'))
         {
-            var escaped = value
-                .Replace("\\", "\\\\")
-                .Replace("\"", "\\\"")
-                .Replace("\n", "\\n")
-                .Replace("\r", "\\r")
-                .Replace("\t", "\\t");
-            return $"\"{escaped}\"";
+            args.Add("--resume");
+            args.Add(config.ResumeSessionId);
         }
-        return value;
+
+        return args;
     }
 }

src/ClaudeDo.Worker/Runner/ClaudeProcess.cs

@@ -18,7 +18,7 @@ public sealed class ClaudeProcess : IClaudeProcess
     }
 
     public async Task<RunResult> RunAsync(
-        string arguments,
+        IReadOnlyList<string> arguments,
         string prompt,
         string workingDirectory,
         Func<string, Task> onStdoutLine,
@@ -27,7 +27,6 @@ public sealed class ClaudeProcess : IClaudeProcess
         var psi = new ProcessStartInfo
         {
             FileName = _cfg.ClaudeBin,
-            Arguments = arguments,
             WorkingDirectory = workingDirectory,
             RedirectStandardInput = true,
             RedirectStandardOutput = true,
@@ -37,6 +36,8 @@ public sealed class ClaudeProcess : IClaudeProcess
             StandardOutputEncoding = Encoding.UTF8,
             StandardErrorEncoding = Encoding.UTF8,
         };
+        foreach (var arg in arguments)
+            psi.ArgumentList.Add(arg);
 
         using var process = new Process { StartInfo = psi };
         process.Start();

src/ClaudeDo.Worker/Runner/Interfaces/IClaudeProcess.cs

@@ -3,7 +3,7 @@ namespace ClaudeDo.Worker.Runner;
 public interface IClaudeProcess
 {
     Task<RunResult> RunAsync(
-        string arguments,
+        IReadOnlyList<string> arguments,
         string prompt,
         string workingDirectory,
         Func<string, Task> onStdoutLine,

src/ClaudeDo.Worker/Runner/TaskRunner.cs

@@ -211,19 +211,32 @@ public sealed class TaskRunner
         await _state.StartRunningAsync(taskId, now, ct);
         await _broadcaster.TaskStarted(slot, taskId, now);
 
-        var nextRunNumber = lastRun.RunNumber + 1;
-        var result = await RunOnceAsync(taskId, task.Title, slot, runDir, resolvedConfig, nextRunNumber, false, followUpPrompt, ct);
-
-        if (result.IsSuccess)
+        try
         {
-            await HandleSuccess(task, list, slot, wtCtx, result, ct);
-        }
-        else
-        {
-            await MarkFailed(taskId, task.Title, slot, result.ErrorMarkdown, result.TurnCount);
-        }
+            var nextRunNumber = lastRun.RunNumber + 1;
+            var result = await RunOnceAsync(taskId, task.Title, slot, runDir, resolvedConfig, nextRunNumber, false, followUpPrompt, ct);
 
-        await _broadcaster.TaskUpdated(taskId);
+            if (result.IsSuccess)
+            {
+                await HandleSuccess(task, list, slot, wtCtx, result, ct);
+            }
+            else
+            {
+                await MarkFailed(taskId, task.Title, slot, result.ErrorMarkdown, result.TurnCount);
+            }
+
+            await _broadcaster.TaskUpdated(taskId);
+        }
+        catch (OperationCanceledException)
+        {
+            _logger.LogInformation("Task {TaskId} was cancelled during continue", taskId);
+            await MarkFailed(taskId, task.Title, slot, "Task cancelled.");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Unhandled exception continuing task {TaskId}", taskId);
+            await MarkFailed(taskId, task.Title, slot, $"Unhandled error: {ex.Message}");
+        }
     }
 
     private readonly record struct RunDirResult(string? RunDir, WorktreeContext? WtCtx, string? FailureReason);

src/ClaudeDo.Worker/State/TaskStateService.cs

@@ -196,14 +196,15 @@ public sealed class TaskStateService : ITaskStateService
         await using (var ctx = await _dbFactory.CreateDbContextAsync(ct))
         {
             var affected = await ctx.Tasks
-                .Where(t => t.Id == taskId && t.Status != TaskStatus.Done)
+                .Where(t => t.Id == taskId &&
+                    (t.Status == TaskStatus.Running || t.Status == TaskStatus.Queued))
                 .ExecuteUpdateAsync(s => s
                     .SetProperty(t => t.Status, TaskStatus.Failed)
                     .SetProperty(t => t.FinishedAt, finishedAt)
                     .SetProperty(t => t.Result, error), ct);
 
             if (affected == 0)
-                return new TransitionResult(false, "Task already done; cannot fail.");
+                return new TransitionResult(false, "Task not in a failable state (must be Running or Queued).");
         }
 
         await OnChildTerminalAsync(taskId, TaskStatus.Failed);
@@ -218,7 +219,8 @@ public sealed class TaskStateService : ITaskStateService
             var affected = await ctx.Tasks
                 .Where(t => t.Id == taskId &&
                     (t.Status == TaskStatus.Running || t.Status == TaskStatus.Queued
-                     || t.Status == TaskStatus.WaitingForReview))
+                     || t.Status == TaskStatus.WaitingForReview
+                     || t.Status == TaskStatus.WaitingForChildren))
                 .ExecuteUpdateAsync(s => s
                     .SetProperty(t => t.Status, TaskStatus.Cancelled)
                     .SetProperty(t => t.FinishedAt, finishedAt), ct);
@@ -288,12 +290,16 @@ public sealed class TaskStateService : ITaskStateService
     public async Task<TransitionResult> FinalizePlanningAsync(string parentId, CancellationToken ct)
     {
         await using var ctx = await _dbFactory.CreateDbContextAsync(ct);
+        var hasChildren = await ctx.Tasks.AnyAsync(t => t.ParentTaskId == parentId, ct);
+        var newStatus = hasChildren ? TaskStatus.WaitingForChildren : TaskStatus.WaitingForReview;
+
         var affected = await ctx.Tasks
             .Where(t => t.Id == parentId && t.PlanningPhase == PlanningPhase.Active)
             .ExecuteUpdateAsync(s => s
                 .SetProperty(t => t.PlanningPhase, PlanningPhase.Finalized)
                 .SetProperty(t => t.PlanningFinalizedAt, DateTime.UtcNow)
-                .SetProperty(t => t.PlanningSessionToken, (string?)null), ct);
+                .SetProperty(t => t.PlanningSessionToken, (string?)null)
+                .SetProperty(t => t.Status, newStatus), ct);
 
         if (affected == 0)
             return new TransitionResult(false, "No active planning session.");
@@ -385,28 +391,18 @@ public sealed class TaskStateService : ITaskStateService
 
         try
         {
-            await using var ctx = await _dbFactory.CreateDbContextAsync(CancellationToken.None);
-            await new TaskRepository(ctx).TryCompleteParentAsync(parentId, CancellationToken.None);
+            await TryAdvanceParentAsync(parentId);
         }
         catch (Exception ex)
         {
-            _logger.LogWarning(ex, "TryCompleteParent failed for {ParentId}", parentId);
-        }
-
-        try
-        {
-            await TryAdvanceImprovementParentAsync(parentId);
-        }
-        catch (Exception ex)
-        {
-            _logger.LogWarning(ex, "TryAdvanceImprovementParent failed for {ParentId}", parentId);
+            _logger.LogWarning(ex, "TryAdvanceParent failed for {ParentId}", parentId);
         }
     }
 
-    // Improvement parents sit in WaitingForChildren while their suggested children run.
-    // Once every child is terminal (Done/Failed/Cancelled) the parent surfaces for review;
-    // a failed or cancelled child does not wedge the parent — it is flagged on the result.
-    private async Task TryAdvanceImprovementParentAsync(string parentId)
+    // Any parent (planning or improvement) sitting in WaitingForChildren surfaces for review
+    // once every child is terminal (Done/Failed/Cancelled). A failed or cancelled child does
+    // not wedge the parent — it is flagged on the result.
+    private async Task TryAdvanceParentAsync(string parentId)
     {
         string? parentResult;
         List<TaskStatus> childStatuses;

src/ClaudeDo.Worker/Worktrees/WorktreeMaintenanceService.cs

@@ -9,7 +9,7 @@ public sealed class WorktreeMaintenanceService
 {
     public sealed record CleanupResult(int Removed, IReadOnlyList<string> RemovedTaskIds);
     public sealed record ResetResult(int Removed, int TasksAffected, bool Blocked, int RunningTasks, IReadOnlyList<string> RemovedTaskIds);
-    public sealed record ForceRemoveResult(bool Removed, string? Reason);
+    public sealed record ForceRemoveResult(bool Removed, string? Reason, bool BranchDeleted);
 
     private readonly IDbContextFactory<ClaudeDoDbContext> _dbFactory;
     private readonly GitService _git;
@@ -43,7 +43,8 @@ public sealed class WorktreeMaintenanceService
         var removedTaskIds = new List<string>();
         foreach (var row in rows)
         {
-            if (await TryRemoveAsync(row, force: false, ct))
+            var (rowRemoved, _) = await TryRemoveAsync(row, force: false, ct);
+            if (rowRemoved)
             {
                 removed++;
                 removedTaskIds.Add(row.TaskId);
@@ -71,7 +72,8 @@ public sealed class WorktreeMaintenanceService
         var removedTaskIds = new List<string>();
         foreach (var row in rows)
         {
-            if (await TryRemoveAsync(row, force: true, ct))
+            var (rowRemoved, _) = await TryRemoveAsync(row, force: true, ct);
+            if (rowRemoved)
             {
                 removed++;
                 removedTaskIds.Add(row.TaskId);
@@ -118,16 +120,16 @@ public sealed class WorktreeMaintenanceService
                         .FirstOrDefaultAsync(ct);
 
         if (row is null)
-            return new ForceRemoveResult(false, "worktree not found");
+            return new ForceRemoveResult(false, "worktree not found", false);
 
         if (row.Status == ClaudeDo.Data.Models.TaskStatus.Running)
-            return new ForceRemoveResult(false, "task is currently running");
+            return new ForceRemoveResult(false, "task is currently running", false);
 
-        var ok = await TryRemoveAsync(row.Row, force: true, ct);
-        return new ForceRemoveResult(ok, ok ? null : "remove failed");
+        var (ok, branchDeleted) = await TryRemoveAsync(row.Row, force: true, ct);
+        return new ForceRemoveResult(ok, ok ? null : "remove failed", branchDeleted);
     }
 
-    private async Task<bool> TryRemoveAsync(WorktreeRow row, bool force, CancellationToken ct)
+    private async Task<(bool Removed, bool BranchDeleted)> TryRemoveAsync(WorktreeRow row, bool force, CancellationToken ct)
     {
         var repoDirExists = !string.IsNullOrWhiteSpace(row.WorkingDir) && Directory.Exists(row.WorkingDir);
         bool dirRemoved;
@@ -163,8 +165,13 @@ public sealed class WorktreeMaintenanceService
             }
         }
 
+        // Drop the DB row only when the on-disk worktree is gone; otherwise we'd silently
+        // strand a directory while reporting success.
+        if (!dirRemoved) return (false, false);
+
         // Branch cleanup: otherwise rerunning the task hits "branch already exists".
         // Prune first so git no longer thinks the branch is checked out by a phantom worktree.
+        bool branchDeleted = false;
         if (repoDirExists)
         {
             try { await _git.WorktreePruneAsync(row.WorkingDir!, ct); }
@@ -175,6 +182,7 @@ public sealed class WorktreeMaintenanceService
                 try
                 {
                     await _git.BranchDeleteAsync(row.WorkingDir!, row.BranchName, force: true, ct);
+                    branchDeleted = true;
                 }
                 catch (Exception ex)
                 {
@@ -184,13 +192,9 @@ public sealed class WorktreeMaintenanceService
             }
         }
 
-        // Drop the DB row only when the on-disk worktree is gone; otherwise we'd silently
-        // strand a directory while reporting success.
-        if (!dirRemoved) return false;
-
         using var context = _dbFactory.CreateDbContext();
         await context.Worktrees.Where(w => w.TaskId == row.TaskId).ExecuteDeleteAsync(ct);
-        return true;
+        return (true, branchDeleted);
     }
 
     private sealed record WorktreeRow(string TaskId, string Path, string BranchName, string? WorkingDir);

tests/ClaudeDo.Data.Tests/Filtering/VirtualFilterTests.cs

@@ -78,20 +78,20 @@ public sealed class VirtualFilterTests
     // --- Review ---
 
     [Fact]
-    public void Review_matches_only_done_with_active_worktree()
+    public void Review_matches_only_waiting_for_review()
     {
         var f = new ReviewFilter();
-        Assert.True (f.Matches(TaskFactory.Make("a", status: TaskStatus.Done,   worktreeState: WorktreeState.Active)));
-        Assert.False(f.Matches(TaskFactory.Make("b", status: TaskStatus.Done,   worktreeState: WorktreeState.Merged)));
-        Assert.False(f.Matches(TaskFactory.Make("c", status: TaskStatus.Done,   worktreeState: null)));
-        Assert.False(f.Matches(TaskFactory.Make("d", status: TaskStatus.Failed, worktreeState: WorktreeState.Active)));
+        Assert.True (f.Matches(TaskFactory.Make("a", status: TaskStatus.WaitingForReview, worktreeState: WorktreeState.Active)));
+        Assert.True (f.Matches(TaskFactory.Make("b", status: TaskStatus.WaitingForReview, worktreeState: null)));
+        Assert.False(f.Matches(TaskFactory.Make("c", status: TaskStatus.Done,             worktreeState: WorktreeState.Active)));
+        Assert.False(f.Matches(TaskFactory.Make("d", status: TaskStatus.Failed,           worktreeState: WorktreeState.Active)));
     }
 
     [Fact]
     public void Review_count_equals_match()
     {
         var f = new ReviewFilter();
-        var t = TaskFactory.Make("a", status: TaskStatus.Done, worktreeState: WorktreeState.Active);
+        var t = TaskFactory.Make("a", status: TaskStatus.WaitingForReview, worktreeState: WorktreeState.Active);
         Assert.Equal(f.Matches(t), f.ShouldCount(t));
     }
 }

tests/ClaudeDo.Data.Tests/ForeignKeyTests.cs

@@ -0,0 +1,115 @@
+using ClaudeDo.Data;
+using ClaudeDo.Data.Models;
+using ClaudeDo.Data.Repositories;
+using Microsoft.EntityFrameworkCore;
+using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
+
+namespace ClaudeDo.Data.Tests;
+
+/// <summary>
+/// Proves that FK enforcement (PRAGMA foreign_keys=ON) is active on every
+/// IDbContextFactory-created context, not just the MigrateAndConfigure context.
+/// </summary>
+public sealed class ForeignKeyTests : IDisposable
+{
+    private readonly string _dbPath;
+    private readonly DbContextOptions<ClaudeDoDbContext> _options;
+
+    public ForeignKeyTests()
+    {
+        _dbPath = Path.Combine(Path.GetTempPath(), $"claudedo_fktest_{Guid.NewGuid():N}.db");
+        _options = new DbContextOptionsBuilder<ClaudeDoDbContext>()
+            .UseSqlite($"Data Source={_dbPath}")
+            .Options;
+
+        // EnsureCreated creates the schema including FK constraints in DDL.
+        using var ctx = new ClaudeDoDbContext(_options);
+        ctx.Database.EnsureCreated();
+    }
+
+    public void Dispose()
+    {
+        foreach (var suffix in new[] { "", "-wal", "-shm" })
+            try { File.Delete(_dbPath + suffix); } catch { }
+    }
+
+    private ClaudeDoDbContext Open() => new(_options);
+
+    // ---- FK interceptor: ON DELETE SET NULL ----
+
+    [Fact]
+    public async Task BlockedByTaskId_is_nulled_when_predecessor_deleted_on_fresh_context()
+    {
+        var listId = Guid.NewGuid().ToString();
+        var parentId = Guid.NewGuid().ToString();
+        var childId = Guid.NewGuid().ToString();
+
+        await using (var ctx = Open())
+        {
+            ctx.Lists.Add(new ListEntity { Id = listId, Name = "L", CreatedAt = DateTime.UtcNow });
+            ctx.Tasks.Add(new TaskEntity { Id = parentId, ListId = listId, Title = "Predecessor", Status = TaskStatus.Idle, CreatedAt = DateTime.UtcNow });
+            ctx.Tasks.Add(new TaskEntity { Id = childId, ListId = listId, Title = "Blocked", Status = TaskStatus.Idle, BlockedByTaskId = parentId, CreatedAt = DateTime.UtcNow });
+            await ctx.SaveChangesAsync();
+        }
+
+        // Delete predecessor in a brand-new context (simulates factory-created context).
+        // Without the FK interceptor, PRAGMA foreign_keys is OFF and SQLite silently
+        // leaves blocked_by_task_id pointing at the deleted row.
+        await using (var ctx = Open())
+        {
+            var predecessor = await ctx.Tasks.FindAsync(parentId);
+            ctx.Tasks.Remove(predecessor!);
+            await ctx.SaveChangesAsync();
+        }
+
+        await using (var ctx = Open())
+        {
+            var child = await ctx.Tasks.AsNoTracking().FirstAsync(t => t.Id == childId);
+            Assert.Null(child.BlockedByTaskId);
+        }
+    }
+
+    // ---- AppSettingsRepository: get-or-create resilience ----
+
+    [Fact]
+    public async Task GetAsync_returns_existing_row_when_present()
+    {
+        await using var ctx = Open();
+        var repo = new AppSettingsRepository(ctx);
+
+        var first = await repo.GetAsync();
+        var second = await repo.GetAsync();
+
+        Assert.Equal(AppSettingsEntity.SingletonId, first.Id);
+        Assert.Equal(AppSettingsEntity.SingletonId, second.Id);
+    }
+
+    [Fact]
+    public async Task GetAsync_creates_row_when_absent()
+    {
+        // Use a fresh DB with no HasData seed (EnsureCreated skips HasData seeding).
+        var path = Path.Combine(Path.GetTempPath(), $"claudedo_fktest_empty_{Guid.NewGuid():N}.db");
+        try
+        {
+            var opts = new DbContextOptionsBuilder<ClaudeDoDbContext>()
+                .UseSqlite($"Data Source={path}")
+                .Options;
+            await using var ctx = new ClaudeDoDbContext(opts);
+            ctx.Database.EnsureCreated();
+
+            var repo = new AppSettingsRepository(ctx);
+            var settings = await repo.GetAsync();
+
+            Assert.Equal(AppSettingsEntity.SingletonId, settings.Id);
+
+            // A second call should find the row and not re-insert.
+            var settings2 = await repo.GetAsync();
+            Assert.Equal(AppSettingsEntity.SingletonId, settings2.Id);
+        }
+        finally
+        {
+            foreach (var suffix in new[] { "", "-wal", "-shm" })
+                try { File.Delete(path + suffix); } catch { }
+        }
+    }
+}

tests/ClaudeDo.Ui.Tests/StubWorkerClient.cs

@@ -75,7 +75,6 @@ public abstract class StubWorkerClient : IWorkerClient
         => Task.FromResult<IReadOnlyList<SubtaskDiffDto>>(Array.Empty<SubtaskDiffDto>());
     public virtual Task<CombinedDiffResultDto?> BuildPlanningIntegrationBranchAsync(string planningTaskId, string targetBranch)
         => Task.FromResult<CombinedDiffResultDto?>(null);
-    public virtual Task MergeAllPlanningAsync(string planningTaskId, string targetBranch) => Task.CompletedTask;
     public virtual Task ContinuePlanningMergeAsync(string planningTaskId) => Task.CompletedTask;
     public virtual Task AbortPlanningMergeAsync(string planningTaskId) => Task.CompletedTask;
     public virtual Task QueuePlanningSubtasksAsync(string parentTaskId, CancellationToken ct = default) => Task.CompletedTask;

tests/ClaudeDo.Ui.Tests/ViewModels/ConflictResolutionViewModelTests.cs

@@ -36,7 +36,7 @@ public class ConflictResolutionViewModelTests
             subtaskTitle: "My subtask",
             targetBranch: "main",
             conflictedFiles: new[] { "src/Foo.cs", "src/Bar.cs" },
-            worktreePath: "C:/worktrees/plan-1");
+            repoDirectory: "C:/repos/plan-1");
 
     // ------------------------------------------------------------------ tests
 

tests/ClaudeDo.Ui.Tests/ViewModels/ConflictResolverViewModelTests.cs

@@ -0,0 +1,104 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using ClaudeDo.Ui.Services;
+using ClaudeDo.Ui.ViewModels.Conflicts;
+using Xunit;
+
+namespace ClaudeDo.Ui.Tests.ViewModels;
+
+public class ConflictResolverViewModelTests
+{
+    private sealed class FakeWorker : StubWorkerClient
+    {
+        public string? WrittenPath;
+        public string? WrittenContent;
+        public bool Continued;
+        public bool Aborted;
+        public string ContinueStatus = "merged";
+
+        public override Task<MergeResultDto> StartConflictMergeAsync(string taskId, string targetBranch)
+            => Task.FromResult(new MergeResultDto("conflict", new[] { "README.md" }, null));
+
+        public override Task<MergeConflictsDto> GetMergeConflictsAsync(string taskId)
+            => Task.FromResult(new MergeConflictsDto(taskId, new[]
+            {
+                new ConflictFileDto("README.md", new[] { new ConflictHunkDto("ours\n", "theirs\n", "base\n") })
+            }));
+
+        public override Task WriteConflictResolutionAsync(string taskId, string path, string resolvedContent)
+        {
+            WrittenPath = path; WrittenContent = resolvedContent; return Task.CompletedTask;
+        }
+
+        public override Task<MergeResultDto> ContinueMergeAsync(string taskId)
+        {
+            Continued = true;
+            return Task.FromResult(new MergeResultDto(ContinueStatus, System.Array.Empty<string>(), null));
+        }
+
+        public override Task AbortMergeAsync(string taskId) { Aborted = true; return Task.CompletedTask; }
+    }
+
+    [Fact]
+    public async Task OpenAsync_LoadsConflicts_AndBlocksContinueUntilResolved()
+    {
+        var vm = new ConflictResolverViewModel(new FakeWorker(), "task-1");
+        var hasConflicts = await vm.OpenAsync("main");
+
+        Assert.True(hasConflicts);
+        var file = Assert.Single(vm.Files);
+        Assert.Equal("README.md", file.Path);
+        Assert.False(vm.CanContinue);
+
+        file.Hunks[0].AcceptIncomingCommand.Execute(null);
+        Assert.True(vm.CanContinue);
+    }
+
+    [Fact]
+    public async Task Continue_WritesComposedResolution_AndClosesOnMerged()
+    {
+        var worker = new FakeWorker();
+        var vm = new ConflictResolverViewModel(worker, "task-1");
+        var closed = false;
+        vm.CloseRequested = () => closed = true;
+
+        await vm.OpenAsync("main");
+        vm.Files[0].Hunks[0].AcceptCurrentCommand.Execute(null);
+        await vm.ContinueCommand.ExecuteAsync(null);
+
+        Assert.Equal("README.md", worker.WrittenPath);
+        Assert.Equal("ours\n", worker.WrittenContent);
+        Assert.True(worker.Continued);
+        Assert.True(closed);
+    }
+
+    [Fact]
+    public async Task Continue_StaysOpenAndReportsError_WhenStillConflicted()
+    {
+        var worker = new FakeWorker { ContinueStatus = "conflict" };
+        var vm = new ConflictResolverViewModel(worker, "task-1");
+        var closed = false;
+        vm.CloseRequested = () => closed = true;
+
+        await vm.OpenAsync("main");
+        vm.Files[0].Hunks[0].AcceptBothCommand.Execute(null);
+        await vm.ContinueCommand.ExecuteAsync(null);
+
+        Assert.False(closed);
+        Assert.NotNull(vm.Error);
+    }
+
+    [Fact]
+    public async Task Abort_CallsWorkerAndCloses()
+    {
+        var worker = new FakeWorker();
+        var vm = new ConflictResolverViewModel(worker, "task-1");
+        var closed = false;
+        vm.CloseRequested = () => closed = true;
+
+        await vm.AbortCommand.ExecuteAsync(null);
+
+        Assert.True(worker.Aborted);
+        Assert.True(closed);
+    }
+}

tests/ClaudeDo.Ui.Tests/ViewModels/DetailsIslandConflictSeamTests.cs

@@ -0,0 +1,96 @@
+using System.Collections.ObjectModel;
+using ClaudeDo.Data;
+using ClaudeDo.Data.Models;
+using ClaudeDo.Data.Repositories;
+using ClaudeDo.Ui.Services;
+using ClaudeDo.Ui.ViewModels.Islands;
+using Microsoft.EntityFrameworkCore;
+using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
+
+namespace ClaudeDo.Ui.Tests.ViewModels;
+
+public class DetailsIslandConflictSeamTests : IDisposable
+{
+    private readonly string _dbPath;
+
+    public DetailsIslandConflictSeamTests()
+    {
+        _dbPath = Path.Combine(Path.GetTempPath(), $"claudedo_conflict_seam_test_{Guid.NewGuid():N}.db");
+        using var ctx = NewContext();
+        ctx.Database.EnsureCreated();
+    }
+
+    public void Dispose()
+    {
+        try { File.Delete(_dbPath); } catch { }
+        try { File.Delete(_dbPath + "-wal"); } catch { }
+        try { File.Delete(_dbPath + "-shm"); } catch { }
+    }
+
+    private ClaudeDoDbContext NewContext()
+    {
+        var opts = new DbContextOptionsBuilder<ClaudeDoDbContext>()
+            .UseSqlite($"Data Source={_dbPath}")
+            .Options;
+        return new ClaudeDoDbContext(opts);
+    }
+
+    private sealed class TestDbFactory : IDbContextFactory<ClaudeDoDbContext>
+    {
+        private readonly Func<ClaudeDoDbContext> _create;
+        public TestDbFactory(Func<ClaudeDoDbContext> create) => _create = create;
+        public ClaudeDoDbContext CreateDbContext() => _create();
+    }
+
+    private sealed class NullServiceProvider : IServiceProvider
+    {
+        public object? GetService(Type serviceType) => null;
+    }
+
+    private sealed class StubNotesApi : ClaudeDo.Ui.Services.Interfaces.INotesApi
+    {
+        public Task<List<ClaudeDo.Ui.Services.DailyNoteDto>> ListAsync(DateOnly day) =>
+            Task.FromResult(new List<ClaudeDo.Ui.Services.DailyNoteDto>());
+        public Task<ClaudeDo.Ui.Services.DailyNoteDto?> AddAsync(DateOnly day, string text) =>
+            Task.FromResult<ClaudeDo.Ui.Services.DailyNoteDto?>(null);
+        public Task UpdateAsync(string id, string text) => Task.CompletedTask;
+        public Task DeleteAsync(string id) => Task.CompletedTask;
+    }
+
+    private sealed class ConflictApproveWorkerClient : StubWorkerClient
+    {
+        public override bool IsConnected => true;
+        public override Task<MergeResultDto?> ApproveReviewAsync(string taskId, string targetBranch) =>
+            Task.FromResult<MergeResultDto?>(new MergeResultDto("conflict", new[] { "a.cs" }, null));
+    }
+
+    private DetailsIslandViewModel BuildVm(StubWorkerClient worker)
+    {
+        var factory = new TestDbFactory(NewContext);
+        return new DetailsIslandViewModel(factory, worker, new NullServiceProvider(), new StubNotesApi());
+    }
+
+    [Fact]
+    public async Task ApproveReview_OnConflict_InvokesConflictResolutionSeam()
+    {
+        const string taskId = "task-conflict-1";
+
+        var vm = BuildVm(new ConflictApproveWorkerClient());
+        vm.Bind(new TaskRowViewModel { Id = taskId, Status = TaskStatus.WaitingForReview });
+        vm.SelectedMergeTarget = "main";
+
+        string? capturedTaskId = null;
+        string? capturedTarget = null;
+        vm.RequestConflictResolution = (tid, target) =>
+        {
+            capturedTaskId = tid;
+            capturedTarget = target;
+            return Task.CompletedTask;
+        };
+
+        await vm.ApproveReviewCommand.ExecuteAsync(null);
+
+        Assert.Equal(taskId, capturedTaskId);
+        Assert.Equal("main", capturedTarget);
+    }
+}

tests/ClaudeDo.Ui.Tests/ViewModels/DetailsIslandPlanningTests.cs

@@ -78,72 +78,6 @@ public class DetailsIslandPlanningTests : IDisposable
             Task.FromException<MergeResultDto?>(new InvalidOperationException("Task is not waiting for review; cannot approve."));
     }
 
-    private static SubtaskRowViewModel MakeSubtask(TaskStatus status, WorktreeState wt = WorktreeState.Active) =>
-        new() { Id = Guid.NewGuid().ToString(), Title = "t", Status = status, WorktreeState = wt };
-
-    // ── CanMergeAll tests exercising the real VM ─────────────────────────────
-
-    [Fact]
-    public void CanMergeAll_AllChildrenDoneActiveWorktrees_True()
-    {
-        var vm = BuildVm(new FakeWorkerClient());
-        vm.Subtasks.Add(MakeSubtask(TaskStatus.Done, WorktreeState.Active));
-        vm.Subtasks.Add(MakeSubtask(TaskStatus.Done, WorktreeState.Active));
-
-        vm.RecomputeCanMergeAll();
-
-        Assert.True(vm.CanMergeAll);
-        Assert.Null(vm.MergeAllDisabledReason);
-    }
-
-    [Fact]
-    public void CanMergeAll_AnyChildNotDone_FalseWithReason()
-    {
-        var vm = BuildVm(new FakeWorkerClient());
-        vm.Subtasks.Add(MakeSubtask(TaskStatus.Done, WorktreeState.Active));
-        vm.Subtasks.Add(MakeSubtask(TaskStatus.Done, WorktreeState.Active));
-        vm.Subtasks.Add(MakeSubtask(TaskStatus.Running, WorktreeState.Active));
-
-        vm.RecomputeCanMergeAll();
-
-        Assert.False(vm.CanMergeAll);
-        Assert.NotNull(vm.MergeAllDisabledReason);
-        Assert.Contains("1 subtask", vm.MergeAllDisabledReason, StringComparison.OrdinalIgnoreCase);
-        Assert.Contains("not done", vm.MergeAllDisabledReason, StringComparison.OrdinalIgnoreCase);
-    }
-
-    [Fact]
-    public void CanMergeAll_AnyChildDiscarded_FalseWithReason()
-    {
-        var vm = BuildVm(new FakeWorkerClient());
-        vm.Subtasks.Add(MakeSubtask(TaskStatus.Done, WorktreeState.Active));
-        vm.Subtasks.Add(MakeSubtask(TaskStatus.Done, WorktreeState.Discarded));
-
-        vm.RecomputeCanMergeAll();
-
-        Assert.False(vm.CanMergeAll);
-        Assert.NotNull(vm.MergeAllDisabledReason);
-        Assert.True(
-            vm.MergeAllDisabledReason!.Contains("discarded", StringComparison.OrdinalIgnoreCase) ||
-            vm.MergeAllDisabledReason.Contains("kept", StringComparison.OrdinalIgnoreCase));
-    }
-
-    [Fact]
-    public void CanMergeAll_AnyChildKept_FalseWithReason()
-    {
-        var vm = BuildVm(new FakeWorkerClient());
-        vm.Subtasks.Add(MakeSubtask(TaskStatus.Done, WorktreeState.Active));
-        vm.Subtasks.Add(MakeSubtask(TaskStatus.Done, WorktreeState.Kept));
-
-        vm.RecomputeCanMergeAll();
-
-        Assert.False(vm.CanMergeAll);
-        Assert.NotNull(vm.MergeAllDisabledReason);
-        Assert.True(
-            vm.MergeAllDisabledReason!.Contains("kept", StringComparison.OrdinalIgnoreCase) ||
-            vm.MergeAllDisabledReason.Contains("discarded", StringComparison.OrdinalIgnoreCase));
-    }
-
     // ── Review-action resilience: a failing hub call must not crash the app ───
 
     [Fact]

tests/ClaudeDo.Ui.Tests/ViewModels/UnifiedDiffParserTests.cs

@@ -0,0 +1,109 @@
+using System.Linq;
+using ClaudeDo.Ui.ViewModels.Modals;
+
+namespace ClaudeDo.Ui.Tests.ViewModels;
+
+public class UnifiedDiffParserTests
+{
+    [Fact]
+    public void Modified_file_counts_additions_and_deletions()
+    {
+        const string raw =
+            "diff --git a/src/Foo.cs b/src/Foo.cs\n" +
+            "index 111..222 100644\n" +
+            "--- a/src/Foo.cs\n" +
+            "+++ b/src/Foo.cs\n" +
+            "@@ -1,3 +1,3 @@\n" +
+            " ctx\n" +
+            "-old\n" +
+            "+new\n";
+
+        var file = Assert.Single(UnifiedDiffParser.Parse(raw));
+        Assert.Equal("src/Foo.cs", file.Path);
+        Assert.Equal(DiffFileStatus.Modified, file.Status);
+        Assert.Equal("M", file.StatusCode);
+        Assert.Equal(1, file.Additions);
+        Assert.Equal(1, file.Deletions);
+        Assert.True(file.HasLines);
+        Assert.False(file.IsBinary);
+    }
+
+    [Fact]
+    public void New_file_is_marked_added()
+    {
+        const string raw =
+            "diff --git a/New.cs b/New.cs\n" +
+            "new file mode 100644\n" +
+            "index 000..abc\n" +
+            "--- /dev/null\n" +
+            "+++ b/New.cs\n" +
+            "@@ -0,0 +1,1 @@\n" +
+            "+hello\n";
+
+        var file = Assert.Single(UnifiedDiffParser.Parse(raw));
+        Assert.Equal(DiffFileStatus.Added, file.Status);
+        Assert.Equal("A", file.StatusCode);
+    }
+
+    [Fact]
+    public void Deleted_file_is_marked_deleted()
+    {
+        const string raw =
+            "diff --git a/Gone.cs b/Gone.cs\n" +
+            "deleted file mode 100644\n" +
+            "index abc..000\n" +
+            "--- a/Gone.cs\n" +
+            "+++ /dev/null\n" +
+            "@@ -1,1 +0,0 @@\n" +
+            "-bye\n";
+
+        var file = Assert.Single(UnifiedDiffParser.Parse(raw));
+        Assert.Equal(DiffFileStatus.Deleted, file.Status);
+        Assert.Equal("D", file.StatusCode);
+    }
+
+    [Fact]
+    public void Rename_captures_old_and_new_path()
+    {
+        const string raw =
+            "diff --git a/Old.cs b/New.cs\n" +
+            "similarity index 100%\n" +
+            "rename from Old.cs\n" +
+            "rename to New.cs\n";
+
+        var file = Assert.Single(UnifiedDiffParser.Parse(raw));
+        Assert.Equal(DiffFileStatus.Renamed, file.Status);
+        Assert.Equal("R", file.StatusCode);
+        Assert.Equal("Old.cs", file.OldPath);
+        Assert.Equal("New.cs", file.Path);
+    }
+
+    [Fact]
+    public void Binary_file_is_flagged_with_no_lines()
+    {
+        const string raw =
+            "diff --git a/img.png b/img.png\n" +
+            "new file mode 100644\n" +
+            "index 000..abc\n" +
+            "Binary files /dev/null and b/img.png differ\n";
+
+        var file = Assert.Single(UnifiedDiffParser.Parse(raw));
+        Assert.True(file.IsBinary);
+        Assert.False(file.HasLines);
+        Assert.False(file.IsEmptyContent);
+    }
+
+    [Fact]
+    public void Empty_new_file_reports_empty_content()
+    {
+        const string raw =
+            "diff --git a/Empty.txt b/Empty.txt\n" +
+            "new file mode 100644\n" +
+            "index 000..000\n";
+
+        var file = Assert.Single(UnifiedDiffParser.Parse(raw));
+        Assert.Equal(DiffFileStatus.Added, file.Status);
+        Assert.False(file.HasLines);
+        Assert.True(file.IsEmptyContent);
+    }
+}

tests/ClaudeDo.Ui.Tests/ViewModels/WorktreesOverviewBatchMergeTests.cs

@@ -0,0 +1,167 @@
+using ClaudeDo.Data.Models;
+using ClaudeDo.Ui.Services;
+using ClaudeDo.Ui.ViewModels.Modals;
+using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
+using Xunit;
+
+namespace ClaudeDo.Ui.Tests.ViewModels;
+
+public class WorktreesOverviewBatchMergeTests
+{
+    private static WorktreeOverviewRowViewModel ActiveRow(string id) => new()
+    {
+        TaskId = id,
+        TaskTitle = $"Task {id}",
+        TaskStatus = TaskStatus.WaitingForReview,
+        State = WorktreeState.Active,
+    };
+
+    [Fact]
+    public void Row_outcome_helpers_reflect_state()
+    {
+        var row = ActiveRow("a");
+        Assert.Equal(BatchMergeOutcome.None, row.MergeOutcome);
+        Assert.False(row.IsConflict);
+
+        row.MergeOutcome = BatchMergeOutcome.Conflict;
+        Assert.True(row.IsConflict);
+
+        row.MergeOutcome = BatchMergeOutcome.Merged;
+        Assert.False(row.IsConflict);
+    }
+
+    private static WorktreesOverviewModalViewModel NewVm() =>
+        new(new ClaudeDo.Ui.Services.WorkerClient("http://127.0.0.1:1/hub"), () => null!);
+
+    private static MergeResultDto Merged() => new("merged", System.Array.Empty<string>(), null);
+    private static MergeResultDto Conflict() => new("conflict", new[] { "f.cs" }, null);
+    private static MergeResultDto Blocked() => new("blocked", System.Array.Empty<string>(), "blocked");
+
+    [Fact]
+    public async System.Threading.Tasks.Task MergeSelected_only_processes_checked_active_rows()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a"); a.IsChecked = true;
+        var b = ActiveRow("b"); b.IsChecked = false;
+        var c = ActiveRow("c"); c.IsChecked = true; c.State = WorktreeState.Merged;
+        vm.Rows.Add(a); vm.Rows.Add(b); vm.Rows.Add(c);
+        vm.SelectedTarget = "main";
+
+        var seen = new System.Collections.Generic.List<string>();
+        await vm.MergeSelectedAsync((id, target, remove, msg) =>
+        {
+            seen.Add(id);
+            Assert.Equal("main", target);
+            Assert.False(remove);
+            return System.Threading.Tasks.Task.FromResult(Merged());
+        });
+
+        Assert.Equal(new[] { "a" }, seen);
+        Assert.Equal(BatchMergeOutcome.Merged, a.MergeOutcome);
+        Assert.False(a.IsChecked);
+    }
+
+    [Fact]
+    public async System.Threading.Tasks.Task MergeSelected_continues_past_conflict_and_collects_it()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a"); a.IsChecked = true;
+        var b = ActiveRow("b"); b.IsChecked = true;
+        var c = ActiveRow("c"); c.IsChecked = true;
+        vm.Rows.Add(a); vm.Rows.Add(b); vm.Rows.Add(c);
+        vm.SelectedTarget = "main";
+
+        await vm.MergeSelectedAsync((id, target, remove, msg) =>
+            System.Threading.Tasks.Task.FromResult(id == "b" ? Conflict() : Merged()));
+
+        Assert.Equal(BatchMergeOutcome.Merged, a.MergeOutcome);
+        Assert.Equal(BatchMergeOutcome.Conflict, b.MergeOutcome);
+        Assert.Equal(BatchMergeOutcome.Merged, c.MergeOutcome);
+        Assert.Contains(b, vm.ConflictRows);
+        Assert.Single(vm.ConflictRows);
+    }
+
+    [Fact]
+    public async System.Threading.Tasks.Task MergeSelected_maps_blocked_and_exception_to_failure_outcomes()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a"); a.IsChecked = true;
+        var b = ActiveRow("b"); b.IsChecked = true;
+        vm.Rows.Add(a); vm.Rows.Add(b);
+        vm.SelectedTarget = "main";
+
+        await vm.MergeSelectedAsync((id, target, remove, msg) => id == "a"
+            ? System.Threading.Tasks.Task.FromResult(Blocked())
+            : throw new System.InvalidOperationException("boom"));
+
+        Assert.Equal(BatchMergeOutcome.Blocked, a.MergeOutcome);
+        Assert.Equal(BatchMergeOutcome.Failed, b.MergeOutcome);
+        Assert.Empty(vm.ConflictRows);
+        Assert.False(vm.IsMerging);
+    }
+
+    [Fact]
+    public async System.Threading.Tasks.Task MergeSelected_noop_when_no_target()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a"); a.IsChecked = true;
+        vm.Rows.Add(a);
+        vm.SelectedTarget = null;
+
+        var called = false;
+        await vm.MergeSelectedAsync((id, t, r, m) => { called = true; return System.Threading.Tasks.Task.FromResult(Merged()); });
+
+        Assert.False(called);
+        Assert.Equal(BatchMergeOutcome.None, a.MergeOutcome);
+    }
+
+    [Fact]
+    public void SelectedCount_tracks_checked_active_rows()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a");
+        var b = ActiveRow("b");
+        var merged = ActiveRow("c"); merged.State = WorktreeState.Merged;
+        vm.AddRowForTest(a); vm.AddRowForTest(b); vm.AddRowForTest(merged);
+
+        Assert.Equal(0, vm.SelectedCount);
+        a.IsChecked = true;
+        Assert.Equal(1, vm.SelectedCount);
+        b.IsChecked = true;
+        merged.IsChecked = true;
+        Assert.Equal(2, vm.SelectedCount);
+        a.IsChecked = false;
+        Assert.Equal(1, vm.SelectedCount);
+    }
+
+    [Fact]
+    public void ResolveConflict_invokes_seam_with_task_and_target()
+    {
+        var vm = NewVm();
+        vm.SelectedTarget = "release";
+        var row = ActiveRow("x"); row.MergeOutcome = BatchMergeOutcome.Conflict;
+
+        (string Task, string Target)? captured = null;
+        vm.RequestConflictResolution = (taskId, target) => { captured = (taskId, target); return System.Threading.Tasks.Task.CompletedTask; };
+
+        vm.ResolveConflictCommand.Execute(row);
+
+        Assert.Equal(("x", "release"), captured);
+    }
+
+    [Fact]
+    public void MergeAll_canExecute_requires_target_selection_and_idle()
+    {
+        var vm = NewVm();
+        var a = ActiveRow("a");
+        vm.AddRowForTest(a);
+
+        Assert.False(vm.MergeAllCommand.CanExecute(null));
+        a.IsChecked = true;
+        Assert.False(vm.MergeAllCommand.CanExecute(null));
+        vm.SelectedTarget = "main";
+        Assert.True(vm.MergeAllCommand.CanExecute(null));
+        vm.IsMerging = true;
+        Assert.False(vm.MergeAllCommand.CanExecute(null));
+    }
+}

tests/ClaudeDo.Worker.Tests/External/ExternalMcpServiceTests.cs

@@ -515,7 +515,7 @@ public sealed class ExternalMcpServiceTests : IDisposable
         var sut = BuildSut(CreateQueue());
 
         var ex = await Assert.ThrowsAsync<InvalidOperationException>(
-            () => sut.MergeTask(task.Id, "main", true, false, CancellationToken.None));
+            () => sut.MergeTask(task.Id, "main", true, false, false, CancellationToken.None));
         Assert.Contains("Done", ex.Message);
     }
 
@@ -527,7 +527,7 @@ public sealed class ExternalMcpServiceTests : IDisposable
         var (task, _, _) = await SeedWorktreeAsync(TaskStatus.Done);
         var sut = BuildSut(CreateQueue());
 
-        var result = await sut.MergeTask(task.Id, "main", true, dryRun: true, CancellationToken.None);
+        var result = await sut.MergeTask(task.Id, "main", true, dryRun: true, cancellationToken: CancellationToken.None);
 
         Assert.False(result.Merged);
         Assert.Null(result.MergeCommit);
@@ -595,4 +595,150 @@ public sealed class ExternalMcpServiceTests : IDisposable
         Assert.True(result.Removed);
         Assert.False(Directory.Exists(wt.WorktreePath));
     }
+
+    // ── GetTaskConfig ─────────────────────────────────────────────────────────
+
+    private ConfigMcpTools BuildConfigSut() => new(_lists, _tasks, _broadcaster);
+
+    [Fact]
+    public async Task GetTaskConfig_NotFound_Throws()
+    {
+        var sut = BuildConfigSut();
+        await Assert.ThrowsAsync<InvalidOperationException>(
+            () => sut.GetTaskConfig("does-not-exist", CancellationToken.None));
+    }
+
+    [Fact]
+    public async Task GetTaskConfig_NoOverrides_ReturnsNull()
+    {
+        var listId = await SeedListAsync();
+        var task = await SeedTaskAsync(listId);
+        var sut = BuildConfigSut();
+
+        var result = await sut.GetTaskConfig(task.Id, CancellationToken.None);
+
+        Assert.Null(result);
+    }
+
+    [Fact]
+    public async Task GetTaskConfig_WithOverrides_ReturnsValues()
+    {
+        var listId = await SeedListAsync();
+        var task = await SeedTaskAsync(listId);
+        await _tasks.UpdateAgentSettingsAsync(task.Id, "claude-sonnet-4-6", "be concise", null, 10, CancellationToken.None);
+        var sut = BuildConfigSut();
+
+        var result = await sut.GetTaskConfig(task.Id, CancellationToken.None);
+
+        Assert.NotNull(result);
+        Assert.Equal("claude-sonnet-4-6", result.Model);
+        Assert.Equal("be concise", result.SystemPrompt);
+        Assert.Null(result.AgentPath);
+        Assert.Equal(10, result.MaxTurns);
+    }
+
+    // ── GetTaskStatusValues ───────────────────────────────────────────────────
+
+    [Fact]
+    public async Task GetTaskStatusValues_ContainsAllStatuses()
+    {
+        var sut = NewService();
+        var values = await sut.GetTaskStatusValues();
+        var names = values.Select(v => v.Status).ToHashSet();
+
+        foreach (var status in Enum.GetValues<TaskStatus>())
+            Assert.Contains(status.ToString(), names);
+    }
+
+    // ── ListTasks status filter ───────────────────────────────────────────────
+
+    [Fact]
+    public async Task ListTasks_FilterByWaitingForReview_ReturnsMatchingTasks()
+    {
+        var listId = await SeedListAsync();
+        await SeedTaskAsync(listId, "wfr", TaskStatus.WaitingForReview);
+        await SeedTaskAsync(listId, "idle", TaskStatus.Idle);
+        var sut = NewService();
+
+        var result = await sut.ListTasks(listId, null, "WaitingForReview", CancellationToken.None);
+
+        Assert.Single(result);
+        Assert.Equal("WaitingForReview", result[0].Status);
+    }
+
+    [Fact]
+    public async Task ListTasks_FilterByWaitingForChildren_ReturnsMatchingTasks()
+    {
+        var listId = await SeedListAsync();
+        await SeedTaskAsync(listId, "wfc", TaskStatus.WaitingForChildren);
+        await SeedTaskAsync(listId, "done", TaskStatus.Done);
+        var sut = NewService();
+
+        var result = await sut.ListTasks(listId, null, "WaitingForChildren", CancellationToken.None);
+
+        Assert.Single(result);
+        Assert.Equal("WaitingForChildren", result[0].Status);
+    }
+
+    // ── MergeTask allowWaitingForReview ───────────────────────────────────────
+
+    [Fact]
+    public async Task MergeTask_WaitingForReview_WithoutFlag_Throws()
+    {
+        var listId = await SeedListAsync();
+        var task = await SeedTaskAsync(listId, status: TaskStatus.WaitingForReview);
+        var sut = BuildSut(CreateQueue());
+
+        var ex = await Assert.ThrowsAsync<InvalidOperationException>(
+            () => sut.MergeTask(task.Id, "main", true, false, false, CancellationToken.None));
+        Assert.Contains("Done", ex.Message);
+    }
+
+    [Fact]
+    public async Task MergeTask_WaitingForReview_WithFlag_DryRun_Succeeds()
+    {
+        if (!GitAvailable) { Assert.True(true, "git not available -- skipping"); return; }
+
+        var (task, _, _) = await SeedWorktreeAsync(TaskStatus.WaitingForReview);
+        var sut = BuildSut(CreateQueue());
+
+        var result = await sut.MergeTask(task.Id, "main", true, dryRun: true, allowWaitingForReview: true, CancellationToken.None);
+
+        Assert.False(result.Merged);
+        Assert.Null(result.MergeCommit);
+    }
+
+    [Fact]
+    public async Task MergeTask_WaitingForReview_WithFlag_MarksTaskDone()
+    {
+        if (!GitAvailable) { Assert.True(true, "git not available -- skipping"); return; }
+
+        var (task, list, wt) = await SeedWorktreeAsync(TaskStatus.WaitingForReview);
+        File.WriteAllText(Path.Combine(wt.WorktreePath, "added.txt"), "content");
+        var cfg = new WorkerConfig { WorktreeRootStrategy = "sibling" };
+        var mgr = new WorktreeManager(new GitService(), _db.CreateFactory(), cfg, NullLogger<WorktreeManager>.Instance);
+        await mgr.CommitIfChangedAsync(wt, task, list, CancellationToken.None);
+
+        var target = await new GitService().GetCurrentBranchAsync(list.WorkingDir, CancellationToken.None);
+        var sut = BuildSut(CreateQueue());
+
+        var result = await sut.MergeTask(task.Id, target, true, dryRun: false, allowWaitingForReview: true, CancellationToken.None);
+
+        Assert.True(result.Merged);
+        var reloaded = await new TaskRepository(_db.CreateContext()).GetByIdAsync(task.Id);
+        Assert.Equal(TaskStatus.Done, reloaded!.Status);
+    }
+
+    // ── ContinueTask validation ───────────────────────────────────────────────
+
+    [Fact]
+    public async Task ContinueTask_EmptyPrompt_Throws()
+    {
+        var listId = await SeedListAsync();
+        var task = await SeedTaskAsync(listId);
+        var sut = NewService();
+
+        await Assert.ThrowsAsync<InvalidOperationException>(
+            () => sut.ContinueTask(task.Id, "   ", CancellationToken.None));
+    }
 }

tests/ClaudeDo.Worker.Tests/Planning/PlanningChainCoordinatorTests.cs

@@ -75,7 +75,7 @@ public sealed class PlanningChainCoordinatorTests : IDisposable
     {
         await SeedPlanningFamilyAsync("P", 3);
 
-        var count = await _sut.SetupChainAsync("P", default);
+        var count = await _sut.SetupChainAsync("P", enqueue: true, default);
 
         Assert.Equal(3, count);
         var kids = await GetChildrenAsync("P");
@@ -92,7 +92,7 @@ public sealed class PlanningChainCoordinatorTests : IDisposable
     {
         await SeedPlanningFamilyAsync("P", 2, childStatus: TaskStatus.Idle);
 
-        var count = await _sut.SetupChainAsync("P", default);
+        var count = await _sut.SetupChainAsync("P", enqueue: true, default);
 
         Assert.Equal(2, count);
     }
@@ -101,7 +101,7 @@ public sealed class PlanningChainCoordinatorTests : IDisposable
     public async Task OnChildDone_UnblocksTheSuccessor()
     {
         await SeedPlanningFamilyAsync("P", 3);
-        await _sut.SetupChainAsync("P", default);
+        await _sut.SetupChainAsync("P", enqueue: true, default);
 
         // Mark the head child Done before announcing.
         await using (var ctx = _factory.CreateDbContext())
@@ -125,10 +125,10 @@ public sealed class PlanningChainCoordinatorTests : IDisposable
     }
 
     [Fact]
-    public async Task OnChildFailed_DoesNotAdvanceChain()
+    public async Task OnChildFailed_CancelsPendingSuccessors_ChainIsNotWedged()
     {
         await SeedPlanningFamilyAsync("P", 3);
-        await _sut.SetupChainAsync("P", default);
+        await _sut.SetupChainAsync("P", enqueue: true, default);
 
         await using (var ctx = _factory.CreateDbContext())
         {
@@ -139,19 +139,50 @@ public sealed class PlanningChainCoordinatorTests : IDisposable
 
         var advanced = await _sut.OnChildFinishedAsync("P-c0", TaskStatus.Failed, default);
 
+        // No "advancement" — the chain does not continue on failure.
         Assert.Null(advanced);
         var kids = await GetChildrenAsync("P");
         Assert.Equal(TaskStatus.Failed, kids[0].Status);
-        // Successors remain blocked on the failed predecessor.
-        Assert.Equal(kids[0].Id, kids[1].BlockedByTaskId);
-        Assert.Equal(kids[1].Id, kids[2].BlockedByTaskId);
+        // Successors must be Cancelled, not left stuck as Queued.
+        Assert.Equal(TaskStatus.Cancelled, kids[1].Status);
+        Assert.Equal(TaskStatus.Cancelled, kids[2].Status);
+    }
+
+    [Fact]
+    public async Task OnChildFailed_MidChain_CancelsAllDownstreamSuccessors()
+    {
+        // Chain: c0 → c1 → c2 → c3. c1 fails mid-chain; c2 and c3 must be cancelled.
+        await SeedPlanningFamilyAsync("P", 4);
+        await _sut.SetupChainAsync("P", enqueue: true, default);
+
+        // Mark c0 Done so c1 was unblocked; c1 ran and failed.
+        await using (var ctx = _factory.CreateDbContext())
+        {
+            var c0 = await ctx.Tasks.FirstAsync(t => t.Id == "P-c0");
+            c0.Status = TaskStatus.Done;
+            c0.BlockedByTaskId = null;
+            var c1 = await ctx.Tasks.FirstAsync(t => t.Id == "P-c1");
+            c1.Status = TaskStatus.Failed;
+            c1.BlockedByTaskId = null;
+            await ctx.SaveChangesAsync();
+        }
+
+        // Announce that c1 finished as Failed — the coordinator must cascade to c2/c3.
+        var advanced = await _sut.OnChildFinishedAsync("P-c1", TaskStatus.Failed, default);
+
+        Assert.Null(advanced);
+        var kids = await GetChildrenAsync("P");
+        Assert.Equal(TaskStatus.Done, kids[0].Status);
+        Assert.Equal(TaskStatus.Failed, kids[1].Status);
+        Assert.Equal(TaskStatus.Cancelled, kids[2].Status);
+        Assert.Equal(TaskStatus.Cancelled, kids[3].Status);
     }
 
     [Fact]
     public async Task OnChildDone_LastChild_ReturnsNull()
     {
         await SeedPlanningFamilyAsync("P", 2);
-        await _sut.SetupChainAsync("P", default);
+        await _sut.SetupChainAsync("P", enqueue: true, default);
 
         await using (var ctx = _factory.CreateDbContext())
         {
@@ -177,7 +208,7 @@ public sealed class PlanningChainCoordinatorTests : IDisposable
         }
 
         await Assert.ThrowsAsync<InvalidOperationException>(
-            () => _sut.SetupChainAsync("P", default));
+            () => _sut.SetupChainAsync("P", enqueue: true, default));
     }
 
     [Fact]
@@ -199,7 +230,7 @@ public sealed class PlanningChainCoordinatorTests : IDisposable
             await ctx.SaveChangesAsync();
         }
 
-        var count = await _sut.SetupChainAsync("P", default);
+        var count = await _sut.SetupChainAsync("P", enqueue: true, default);
 
         Assert.Equal(4, count);
         var kids = await GetChildrenAsync("P");
@@ -226,7 +257,7 @@ public sealed class PlanningChainCoordinatorTests : IDisposable
             await ctx.SaveChangesAsync();
         }
 
-        var count = await _sut.SetupChainAsync("P", default);
+        var count = await _sut.SetupChainAsync("P", enqueue: true, default);
 
         // Only the two non-terminal tail children get chained.
         Assert.Equal(2, count);
@@ -272,4 +303,21 @@ public sealed class PlanningChainCoordinatorTests : IDisposable
         var kids = await GetChildrenAsync("P");
         Assert.All(kids, k => Assert.Equal(TaskStatus.Idle, k.Status));
     }
+
+    [Fact]
+    public async Task SetupChain_LinkOnly_LeavesChildrenIdle_ButEstablishesChain()
+    {
+        // Finalize path: children must stay Idle (nothing auto-queues) but still
+        // get the blocked-by chain so a later "Queue plan" runs them in order.
+        await SeedPlanningFamilyAsync("P", 3);
+
+        var count = await _sut.SetupChainAsync("P", enqueue: false, default);
+
+        Assert.Equal(3, count);
+        var kids = await GetChildrenAsync("P");
+        Assert.All(kids, k => Assert.Equal(TaskStatus.Idle, k.Status));
+        Assert.Null(kids[0].BlockedByTaskId);
+        Assert.Equal(kids[0].Id, kids[1].BlockedByTaskId);
+        Assert.Equal(kids[1].Id, kids[2].BlockedByTaskId);
+    }
 }

tests/ClaudeDo.Worker.Tests/Planning/PlanningEndToEndTests.cs

@@ -121,19 +121,20 @@ public sealed class PlanningEndToEndTests : IDisposable
         Assert.Equal(PlanningPhase.Finalized, reload!.PlanningPhase);
 
         var kids = await _tasks.GetChildrenAsync(parent.Id);
-        // SetupChainAsync auto-attaches agent tag and queues all children;
-        // the first one is unblocked, the rest are BlockedBy their predecessor.
-        Assert.Equal(TaskStatus.Queued, kids[0].Status);
+        // Finalize no longer auto-queues. Children stay Idle and chain-linked
+        // (head unblocked, rest BlockedBy their predecessor) until the user
+        // explicitly queues the plan.
+        Assert.Equal(TaskStatus.Idle, kids[0].Status);
         Assert.Null(kids[0].BlockedByTaskId);
-        Assert.Equal(TaskStatus.Queued, kids[1].Status);
+        Assert.Equal(TaskStatus.Idle, kids[1].Status);
         Assert.Equal(kids[0].Id, kids[1].BlockedByTaskId);
     }
 
-    // Regression: original bug was "queue never picks up planning tasks". After Finalize
-    // with queueAgentTasks=true, the first child must be claimable by the queue picker
-    // automatically — without anyone calling WakeQueue() manually.
+    // Regression: original bug was "queue never picks up planning tasks". Finalize
+    // leaves children Idle; queueing the plan (the explicit user gate) must make the
+    // first child claimable by the picker automatically — without a manual WakeQueue().
     [Fact]
-    public async Task FinalizeAsync_FirstChildIsClaimedByPicker_WithinDeadline()
+    public async Task QueuePlanAfterFinalize_FirstChildIsClaimedByPicker_WithinDeadline()
     {
         var listId = Guid.NewGuid().ToString();
         var wd = Path.Combine(Path.GetTempPath(), $"cd_e2e_wd_{Guid.NewGuid():N}");
@@ -160,12 +161,18 @@ public sealed class PlanningEndToEndTests : IDisposable
 
         var kidsBefore = await _tasks.GetChildrenAsync(parent.Id);
         var firstChildId = kidsBefore[0].Id;
-        var wakesBefore = _built.WakeCount();
 
         await _manager.FinalizeAsync(parent.Id, queueAgentTasks: true, CancellationToken.None);
 
-        // The picker should pick the first child immediately. Auto-wake fires inside
-        // _state.EnqueueAsync; we don't need a manual WakeQueue() for the bug to be fixed.
+        // Finalize leaves every child Idle — nothing is claimable yet.
+        var afterFinalize = await _tasks.GetChildrenAsync(parent.Id);
+        Assert.All(afterFinalize, k => Assert.Equal(TaskStatus.Idle, k.Status));
+
+        // Queueing the plan is the gate that enqueues + auto-wakes. The picker should
+        // then pick the first child immediately, without a manual WakeQueue().
+        var wakesBefore = _built.WakeCount();
+        await _built.Chain.QueuePlanAsync(parent.Id, CancellationToken.None);
+
         var picker = new QueuePicker(_db.CreateFactory());
 
         TaskEntity? claimed = null;
@@ -181,6 +188,6 @@ public sealed class PlanningEndToEndTests : IDisposable
         Assert.Equal(firstChildId, claimed!.Id);
         Assert.Equal(TaskStatus.Running, claimed.Status);
         Assert.True(_built.WakeCount() > wakesBefore,
-            "TaskStateService.EnqueueAsync should auto-wake the queue.");
+            "QueuePlanAsync → EnqueueAsync should auto-wake the queue.");
     }
 }

tests/ClaudeDo.Worker.Tests/Planning/PlanningMergeOrchestratorTests.cs

@@ -352,4 +352,78 @@ public sealed class PlanningMergeOrchestratorTests : IDisposable
         await ctx.SaveChangesAsync();
         return (parentId, running);
     }
+
+    // ─── ApproveReview routing ──────────────────────────────────────────────
+
+    /// <summary>
+    /// Improvement parent (PlanningPhase.None) in WaitingForReview with two Done children
+    /// that each have an Active worktree → orchestrator merges both and marks the parent Done.
+    /// This mirrors the ApproveReview hub path for a parent-with-children.
+    /// </summary>
+    [Fact]
+    public async Task StartAsync_ImprovementParentInWaitingForReview_MergesBothChildrenAndLeavesDone()
+    {
+        var db = NewDb();
+        var repo = NewRepo();
+        GitRepoFixture.RunGit(repo.RepoDir, "branch", "-m", "main");
+
+        var (parentId, subA, subB) = await SeedImprovementParentWithTwoDoneChildrenAsync(db, repo);
+
+        var (orch, calls) = BuildOrchestrator(db);
+
+        await orch.StartAsync(parentId, "main", CancellationToken.None);
+
+        using var ctx = db.CreateContext();
+        var parent = ctx.Tasks.Single(t => t.Id == parentId);
+        Assert.Equal(TaskStatus.Done, parent.Status);
+        Assert.NotNull(parent.FinishedAt);
+
+        Assert.Equal(WorktreeState.Merged, ctx.Worktrees.Single(w => w.TaskId == subA).State);
+        Assert.Equal(WorktreeState.Merged, ctx.Worktrees.Single(w => w.TaskId == subB).State);
+
+        Assert.Contains(calls, c => c.Method == "PlanningMergeStarted");
+        Assert.Equal(2, calls.Count(c => c.Method == "PlanningSubtaskMerged"));
+        Assert.Contains(calls, c => c.Method == "PlanningCompleted" && (string)c.Args[0]! == parentId);
+    }
+
+    private async Task<(string parentId, string subA, string subB)> SeedImprovementParentWithTwoDoneChildrenAsync(
+        DbFixture db, GitRepoFixture repo)
+    {
+        using var ctx = db.CreateContext();
+
+        var listId = Guid.NewGuid().ToString();
+        ctx.Lists.Add(new ListEntity
+        {
+            Id = listId, Name = "test", CreatedAt = DateTime.UtcNow,
+            WorkingDir = repo.RepoDir,
+        });
+
+        var parentId = Guid.NewGuid().ToString();
+        // Improvement parent: PlanningPhase.None, status WaitingForReview (after children finished)
+        ctx.Tasks.Add(new TaskEntity
+        {
+            Id = parentId, ListId = listId, Title = "improve", CreatedAt = DateTime.UtcNow,
+            Status = TaskStatus.WaitingForReview, PlanningPhase = PlanningPhase.None, SortOrder = 0,
+        });
+
+        var subA = Guid.NewGuid().ToString();
+        var subB = Guid.NewGuid().ToString();
+        ctx.Tasks.Add(new TaskEntity
+        {
+            Id = subA, ListId = listId, Title = "child A", CreatedAt = DateTime.UtcNow,
+            ParentTaskId = parentId, Status = TaskStatus.Done, SortOrder = 1,
+        });
+        ctx.Tasks.Add(new TaskEntity
+        {
+            Id = subB, ListId = listId, Title = "child B", CreatedAt = DateTime.UtcNow,
+            ParentTaskId = parentId, Status = TaskStatus.Done, SortOrder = 2,
+        });
+        await ctx.SaveChangesAsync();
+
+        SeedWorktree(ctx, repo, subA, "fileA.txt", "content A");
+        SeedWorktree(ctx, repo, subB, "fileB.txt", "content B");
+        await ctx.SaveChangesAsync();
+
+        return (parentId, subA, subB);
+    }
 }

tests/ClaudeDo.Worker.Tests/Prime/DailyPrepPromptTests.cs

@@ -19,8 +19,10 @@ public class DailyPrepPromptTests
     public void Build_args_allows_only_the_two_tools()
     {
         var args = DailyPrepPrompt.BuildArgs(maxTurns: 30);
-        Assert.Contains("--output-format stream-json", args);
-        Assert.Contains("--max-turns 30", args);
+        Assert.Contains("--output-format", args);
+        Assert.Contains("stream-json", args);
+        Assert.Contains("--max-turns", args);
+        Assert.Contains("30", args);
         Assert.Contains("--allowedTools", args);
         Assert.Contains("mcp__claudedo__get_daily_prep_candidates", args);
         Assert.Contains("mcp__claudedo__set_my_day", args);

tests/ClaudeDo.Worker.Tests/Prime/PrimeRunnerTests.cs

@@ -31,7 +31,7 @@ public class PrimeRunnerTests : IDisposable
         }
 
         public async Task<RunResult> RunAsync(
-            string arguments,
+            IReadOnlyList<string> arguments,
             string prompt,
             string workingDirectory,
             Func<string, Task> onStdoutLine,

tests/ClaudeDo.Worker.Tests/Refine/RefinePromptTests.cs

@@ -11,9 +11,12 @@ public sealed class RefinePromptTests
     {
         var args = RefinePrompt.BuildArgs(20, canReadRepo: true);
 
-        Assert.Contains("--permission-mode acceptEdits", args);
+        Assert.Contains("--permission-mode", args);
+        Assert.Contains("acceptEdits", args);
         Assert.Contains("mcp__claudedo__add_subtask", args);
-        Assert.Contains(" Read Grep Glob", args);
+        Assert.Contains("Read", args);
+        Assert.Contains("Grep", args);
+        Assert.Contains("Glob", args);
     }
 
     [Fact]

tests/ClaudeDo.Worker.Tests/Refine/RefineRunnerTests.cs

@@ -105,7 +105,7 @@ internal sealed class RecordingClaudeProcess : IClaudeProcess
 
     public RecordingClaudeProcess(bool success) => _success = success;
 
-    public Task<RunResult> RunAsync(string arguments, string prompt, string workingDirectory,
+    public Task<RunResult> RunAsync(IReadOnlyList<string> arguments, string prompt, string workingDirectory,
         Func<string, Task> onStdoutLine, CancellationToken ct)
     {
         Interlocked.Increment(ref _callCount);

tests/ClaudeDo.Worker.Tests/Report/WeekReportServiceTests.cs

@@ -27,7 +27,7 @@ public class WeekReportServiceTests : IDisposable
     {
         public int Calls;
         public RunResult Next = new() { ExitCode = 0, ResultMarkdown = "## Bericht" };
-        public Task<RunResult> RunAsync(string args, string prompt, string wd, Func<string, Task> onLine, CancellationToken ct)
+        public Task<RunResult> RunAsync(IReadOnlyList<string> args, string prompt, string wd, Func<string, Task> onLine, CancellationToken ct)
         { Calls++; return Task.FromResult(Next); }
     }
 

tests/ClaudeDo.Worker.Tests/Repositories/TaskRepositoryParentCompletionTests.cs

@@ -1,139 +0,0 @@
-using ClaudeDo.Data;
-using ClaudeDo.Data.Models;
-using ClaudeDo.Data.Repositories;
-using ClaudeDo.Worker.Tests.Infrastructure;
-using Microsoft.EntityFrameworkCore;
-using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
-
-namespace ClaudeDo.Worker.Tests.Repositories;
-
-public sealed class TaskRepositoryParentCompletionTests : IDisposable
-{
-    private readonly DbFixture _db = new();
-    private readonly ClaudeDoDbContext _ctx;
-    private readonly TaskRepository _tasks;
-    private readonly ListRepository _lists;
-
-    public TaskRepositoryParentCompletionTests()
-    {
-        _ctx = _db.CreateContext();
-        _tasks = new TaskRepository(_ctx);
-        _lists = new ListRepository(_ctx);
-    }
-
-    public void Dispose() { _ctx.Dispose(); _db.Dispose(); }
-
-    private async Task<string> ListAsync()
-    {
-        var id = Guid.NewGuid().ToString();
-        await _lists.AddAsync(new ListEntity { Id = id, Name = "L", CreatedAt = DateTime.UtcNow });
-        return id;
-    }
-
-    private async Task<TaskEntity> PlannedParentAsync(string listId)
-    {
-        var parent = new TaskEntity
-        {
-            Id = Guid.NewGuid().ToString(),
-            ListId = listId,
-            Title = "p",
-            Status = TaskStatus.Idle,
-            PlanningPhase = PlanningPhase.Finalized,
-            CreatedAt = DateTime.UtcNow,
-            CommitType = "chore",
-        };
-        await _tasks.AddAsync(parent);
-        return parent;
-    }
-
-    private async Task<TaskEntity> ChildAsync(string listId, string parentId, TaskStatus status)
-    {
-        var child = new TaskEntity
-        {
-            Id = Guid.NewGuid().ToString(),
-            ListId = listId,
-            Title = "c",
-            Status = status,
-            CreatedAt = DateTime.UtcNow,
-            CommitType = "chore",
-            ParentTaskId = parentId,
-        };
-        await _tasks.AddAsync(child);
-        return child;
-    }
-
-    [Fact]
-    public async Task TryCompleteParentAsync_AllChildrenDone_ParentBecomesDone()
-    {
-        var listId = await ListAsync();
-        var parent = await PlannedParentAsync(listId);
-        await ChildAsync(listId, parent.Id, TaskStatus.Done);
-        await ChildAsync(listId, parent.Id, TaskStatus.Done);
-
-        await _tasks.TryCompleteParentAsync(parent.Id);
-
-        var loaded = await _tasks.GetByIdAsync(parent.Id);
-        Assert.Equal(TaskStatus.Done, loaded!.Status);
-        Assert.NotNull(loaded.FinishedAt);
-    }
-
-    [Fact]
-    public async Task TryCompleteParentAsync_OneFailedRestDone_ParentBecomesFailed()
-    {
-        var listId = await ListAsync();
-        var parent = await PlannedParentAsync(listId);
-        await ChildAsync(listId, parent.Id, TaskStatus.Done);
-        await ChildAsync(listId, parent.Id, TaskStatus.Failed);
-
-        await _tasks.TryCompleteParentAsync(parent.Id);
-
-        var loaded = await _tasks.GetByIdAsync(parent.Id);
-        Assert.Equal(TaskStatus.Failed, loaded!.Status);
-        Assert.NotNull(loaded.FinishedAt);
-    }
-
-    [Fact]
-    public async Task TryCompleteParentAsync_OneStillRunning_ParentStaysPlanned()
-    {
-        var listId = await ListAsync();
-        var parent = await PlannedParentAsync(listId);
-        await ChildAsync(listId, parent.Id, TaskStatus.Done);
-        await ChildAsync(listId, parent.Id, TaskStatus.Running);
-
-        await _tasks.TryCompleteParentAsync(parent.Id);
-
-        var loaded = await _tasks.GetByIdAsync(parent.Id);
-        Assert.Equal(TaskStatus.Idle, loaded!.Status);
-        Assert.Equal(PlanningPhase.Finalized, loaded.PlanningPhase);
-        Assert.Null(loaded.FinishedAt);
-    }
-
-    [Fact]
-    public async Task TryCompleteParentAsync_ChildStillIdle_ParentStaysFinalized()
-    {
-        var listId = await ListAsync();
-        var parent = await PlannedParentAsync(listId);
-        await ChildAsync(listId, parent.Id, TaskStatus.Done);
-        await ChildAsync(listId, parent.Id, TaskStatus.Idle);
-
-        await _tasks.TryCompleteParentAsync(parent.Id);
-
-        var loaded = await _tasks.GetByIdAsync(parent.Id);
-        Assert.Equal(PlanningPhase.Finalized, loaded!.PlanningPhase);
-    }
-
-    [Fact]
-    public async Task TryCompleteParentAsync_ParentIsNotFinalized_NoChange()
-    {
-        var listId = await ListAsync();
-        var parent = await PlannedParentAsync(listId);
-        await _ctx.Database.ExecuteSqlRawAsync(
-            "UPDATE tasks SET planning_phase = 'active' WHERE id = {0}", parent.Id);
-        await ChildAsync(listId, parent.Id, TaskStatus.Done);
-
-        await _tasks.TryCompleteParentAsync(parent.Id);
-
-        var loaded = await _tasks.GetByIdAsync(parent.Id);
-        Assert.Equal(PlanningPhase.Active, loaded!.PlanningPhase);
-    }
-}

tests/ClaudeDo.Worker.Tests/Runner/ClaudeArgsBuilderTests.cs

@@ -11,9 +11,11 @@ public sealed class ClaudeArgsBuilderTests
     {
         var args = _builder.Build(new ClaudeRunConfig(null, null, null, null));
         Assert.Contains("-p", args);
-        Assert.Contains("--output-format stream-json", args);
+        Assert.Contains("--output-format", args);
+        Assert.Contains("stream-json", args);
         Assert.Contains("--verbose", args);
-        Assert.Contains("--permission-mode auto", args);
+        Assert.Contains("--permission-mode", args);
+        Assert.Contains("auto", args);
         Assert.DoesNotContain("--dangerously-skip-permissions", args);
         Assert.Contains("--json-schema", args);
         Assert.DoesNotContain("--model", args);
@@ -26,7 +28,8 @@ public sealed class ClaudeArgsBuilderTests
     public void Model_Adds_Model_Flag()
     {
         var args = _builder.Build(new ClaudeRunConfig("sonnet-4-6", null, null, null));
-        Assert.Contains("--model sonnet-4-6", args);
+        Assert.Contains("--model", args);
+        Assert.Contains("sonnet-4-6", args);
     }
 
     [Fact]
@@ -42,63 +45,74 @@ public sealed class ClaudeArgsBuilderTests
     {
         var args = _builder.Build(new ClaudeRunConfig(null, null, "/path/to/agent.md", null));
         Assert.Contains("--agents", args);
-        Assert.Contains("/path/to/agent.md", args);
+        Assert.Contains(args, a => a.Contains("/path/to/agent.md"));
     }
 
     [Fact]
     public void ResumeSessionId_Adds_Resume_Flag()
     {
         var args = _builder.Build(new ClaudeRunConfig(null, null, null, "sess-abc-123"));
-        Assert.Contains("--resume sess-abc-123", args);
+        Assert.Contains("--resume", args);
+        Assert.Contains("sess-abc-123", args);
     }
 
     [Fact]
     public void All_Options_Set_Includes_All_Flags()
     {
         var args = _builder.Build(new ClaudeRunConfig("opus-4-6", "Be thorough.", "/agents/dev.md", "sess-xyz"));
-        Assert.Contains("--model opus-4-6", args);
+        Assert.Contains("--model", args);
+        Assert.Contains("opus-4-6", args);
         Assert.Contains("--append-system-prompt", args);
         Assert.Contains("--agents", args);
-        Assert.Contains("--resume sess-xyz", args);
+        Assert.Contains("--resume", args);
+        Assert.Contains("sess-xyz", args);
         Assert.Contains("--json-schema", args);
     }
 
     [Fact]
-    public void SystemPrompt_With_Quotes_Is_Escaped()
+    public void SystemPrompt_With_Quotes_Is_Passed_Verbatim()
     {
-        var args = _builder.Build(new ClaudeRunConfig(null, """Don't say "hello".""", null, null));
+        var prompt = """Don't say "hello".""";
+        var args = _builder.Build(new ClaudeRunConfig(null, prompt, null, null));
         Assert.Contains("--append-system-prompt", args);
+        Assert.Contains(prompt, args);
     }
 
     [Fact]
-    public void Build_quotes_system_prompt_with_newline()
+    public void SystemPrompt_With_Newline_Is_Passed_As_Single_Element()
     {
+        var prompt = "line1\nline2";
         var args = _builder.Build(new ClaudeRunConfig(
             Model: null,
-            SystemPrompt: "line1\nline2",
+            SystemPrompt: prompt,
             AgentPath: null,
             ResumeSessionId: null));
 
-        Assert.Contains("--append-system-prompt \"line1\\nline2\"", args);
+        var list = args.ToList();
+        var idx = list.IndexOf("--append-system-prompt");
+        Assert.True(idx >= 0);
+        Assert.Equal(prompt, list[idx + 1]);
     }
 
     [Fact]
-    public void Build_quotes_system_prompt_with_tab()
+    public void SystemPrompt_With_Tab_Is_Passed_As_Single_Element()
     {
+        var prompt = "col1\tcol2";
         var args = _builder.Build(new ClaudeRunConfig(
             Model: null,
-            SystemPrompt: "col1\tcol2",
+            SystemPrompt: prompt,
             AgentPath: null,
             ResumeSessionId: null));
 
-        Assert.Contains("\"col1", args);
+        Assert.Contains(prompt, args);
     }
 
     [Fact]
     public void MaxTurns_Adds_Flag_When_Positive()
     {
         var args = _builder.Build(new ClaudeRunConfig(null, null, null, null, MaxTurns: 25));
-        Assert.Contains("--max-turns 25", args);
+        Assert.Contains("--max-turns", args);
+        Assert.Contains("25", args);
     }
 
     [Fact]
@@ -114,7 +128,8 @@ public sealed class ClaudeArgsBuilderTests
     public void PermissionMode_bypass_Maps_To_Auto()
     {
         var args = _builder.Build(new ClaudeRunConfig(null, null, null, null, PermissionMode: "bypassPermissions"));
-        Assert.Contains("--permission-mode auto", args);
+        Assert.Contains("--permission-mode", args);
+        Assert.Contains("auto", args);
         Assert.DoesNotContain("--dangerously-skip-permissions", args);
     }
 
@@ -122,7 +137,8 @@ public sealed class ClaudeArgsBuilderTests
     public void PermissionMode_acceptEdits_Emits_PermissionMode_Flag()
     {
         var args = _builder.Build(new ClaudeRunConfig(null, null, null, null, PermissionMode: "acceptEdits"));
-        Assert.Contains("--permission-mode acceptEdits", args);
+        Assert.Contains("--permission-mode", args);
+        Assert.Contains("acceptEdits", args);
         Assert.DoesNotContain("--dangerously-skip-permissions", args);
     }
 
@@ -130,7 +146,8 @@ public sealed class ClaudeArgsBuilderTests
     public void PermissionMode_Null_Defaults_To_Auto()
     {
         var args = _builder.Build(new ClaudeRunConfig(null, null, null, null));
-        Assert.Contains("--permission-mode auto", args);
+        Assert.Contains("--permission-mode", args);
+        Assert.Contains("auto", args);
         Assert.DoesNotContain("--dangerously-skip-permissions", args);
     }
 
@@ -142,8 +159,26 @@ public sealed class ClaudeArgsBuilderTests
             McpConfigPath: "C:\\tmp\\t_mcp.json",
             AllowedTools: "mcp__claudedo_run__SuggestImprovement"));
         Assert.Contains("--mcp-config", args);
-        Assert.Contains("t_mcp.json", args);
-        Assert.Contains("--allowedTools mcp__claudedo_run__SuggestImprovement", args);
+        Assert.Contains(args, a => a.Contains("t_mcp.json"));
+        Assert.Contains("--allowedTools", args);
+        Assert.Contains("mcp__claudedo_run__SuggestImprovement", args);
+    }
+
+    [Fact]
+    public void SystemPrompt_ContainingDangerousFlag_IsPassedAsLiteral_NotAsFlag()
+    {
+        // If the system prompt contains "--dangerously-skip-permissions", it must arrive
+        // as the VALUE of --append-system-prompt, not as a standalone CLI flag.
+        const string dangerousPrompt = "--dangerously-skip-permissions";
+        var args = _builder.Build(new ClaudeRunConfig(null, dangerousPrompt, null, null));
+
+        var list = args.ToList();
+        var flagIdx = list.IndexOf("--append-system-prompt");
+        Assert.True(flagIdx >= 0, "--append-system-prompt flag must be present");
+        // The dangerous string sits immediately after the flag as its value.
+        Assert.Equal(dangerousPrompt, list[flagIdx + 1]);
+        // It does NOT appear as a separate element (i.e., not treated as its own flag).
+        Assert.Equal(1, list.Count(a => a == dangerousPrompt));
     }
 }
 

tests/ClaudeDo.Worker.Tests/Runner/ContinueAsyncExceptionTests.cs

@@ -0,0 +1,106 @@
+using ClaudeDo.Data;
+using ClaudeDo.Data.Models;
+using ClaudeDo.Data.Repositories;
+using ClaudeDo.Worker.Config;
+using ClaudeDo.Worker.Hub;
+using ClaudeDo.Worker.Runner;
+using ClaudeDo.Worker.Tests.Infrastructure;
+using ClaudeDo.Worker.Tests.Services;
+using Microsoft.Extensions.Logging.Abstractions;
+using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
+
+namespace ClaudeDo.Worker.Tests.Runner;
+
+/// <summary>
+/// Verifies that ContinueAsync wraps RunOnceAsync exceptions so the task
+/// is never left stuck in Running status on an unexpected error.
+/// </summary>
+public sealed class ContinueAsyncExceptionTests : IDisposable
+{
+    private readonly DbFixture _db = new();
+    private readonly string _tempDir;
+    private readonly WorkerConfig _cfg;
+
+    public ContinueAsyncExceptionTests()
+    {
+        _tempDir = Path.Combine(Path.GetTempPath(), $"cd_continue_{Guid.NewGuid():N}");
+        Directory.CreateDirectory(_tempDir);
+        _cfg = new WorkerConfig { SandboxRoot = _tempDir, LogRoot = _tempDir };
+    }
+
+    public void Dispose() { _db.Dispose(); try { Directory.Delete(_tempDir, true); } catch { } }
+
+    private TaskRunner BuildRunner(IClaudeProcess claude, ClaudeDoDbContext ctx)
+    {
+        var dbFactory = _db.CreateFactory();
+        var broadcaster = new HubBroadcaster(new FakeHubContext());
+        var state = TaskStateServiceBuilder.Build(dbFactory).State;
+        var wt = new WorktreeManager(new ClaudeDo.Data.Git.GitService(), dbFactory, _cfg, NullLogger<WorktreeManager>.Instance);
+        return new TaskRunner(claude, dbFactory, broadcaster, wt, new ClaudeArgsBuilder(), _cfg,
+            NullLogger<TaskRunner>.Instance, state, new TaskRunTokenRegistry());
+    }
+
+    [Fact]
+    public async Task ContinueAsync_UnhandledException_MarksTaskFailed_NotStuckRunning()
+    {
+        var dbFactory = _db.CreateFactory();
+        string listId, taskId;
+
+        using (var ctx = _db.CreateContext())
+        {
+            listId = Guid.NewGuid().ToString();
+            ctx.Lists.Add(new ListEntity { Id = listId, Name = "L", WorkingDir = null, CreatedAt = DateTime.UtcNow });
+
+            taskId = Guid.NewGuid().ToString();
+            ctx.Tasks.Add(new TaskEntity
+            {
+                Id = taskId,
+                ListId = listId,
+                Title = "Continue me",
+                Status = TaskStatus.WaitingForReview,
+                CreatedAt = DateTime.UtcNow,
+            });
+            await ctx.SaveChangesAsync();
+
+            // A prior run with a session ID is required for ContinueAsync to proceed.
+            await new TaskRunRepository(ctx).AddAsync(new TaskRunEntity
+            {
+                Id = Guid.NewGuid().ToString(),
+                TaskId = taskId,
+                RunNumber = 1,
+                IsRetry = false,
+                Prompt = "original prompt",
+                SessionId = "sess-continue-test",
+                StartedAt = DateTime.UtcNow.AddMinutes(-5),
+                FinishedAt = DateTime.UtcNow.AddMinutes(-1),
+                ExitCode = 0,
+                ResultMarkdown = "first result",
+            });
+        }
+
+        // This process throws a non-cancellation exception to simulate an unexpected failure.
+        var throwingProcess = new ThrowingClaudeProcess(new InvalidOperationException("disk full"));
+
+        using var ctx2 = _db.CreateContext();
+        var runner = BuildRunner(throwingProcess, ctx2);
+
+        // ContinueAsync must not propagate the exception and must leave the task in Failed.
+        await runner.ContinueAsync(taskId, "please continue", "slot-1", CancellationToken.None);
+
+        using var verify = _db.CreateContext();
+        var task = await new TaskRepository(verify).GetByIdAsync(taskId);
+        Assert.NotNull(task);
+        Assert.Equal(TaskStatus.Failed, task.Status);
+    }
+
+    private sealed class ThrowingClaudeProcess : IClaudeProcess
+    {
+        private readonly Exception _ex;
+        public ThrowingClaudeProcess(Exception ex) => _ex = ex;
+
+        public Task<RunResult> RunAsync(
+            IReadOnlyList<string> arguments, string prompt, string workingDirectory,
+            Func<string, Task> onStdoutLine, CancellationToken ct)
+            => throw _ex;
+    }
+}

tests/ClaudeDo.Worker.Tests/Runner/TaskRunnerParentCompletionTests.cs

@@ -1,75 +0,0 @@
-using ClaudeDo.Data;
-using ClaudeDo.Data.Models;
-using ClaudeDo.Data.Repositories;
-using ClaudeDo.Worker.Tests.Infrastructure;
-using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
-
-namespace ClaudeDo.Worker.Tests.Runner;
-
-public sealed class TaskRunnerParentCompletionTests : IDisposable
-{
-    private readonly DbFixture _db = new();
-    private readonly ClaudeDoDbContext _ctx;
-    private readonly TaskRepository _tasks;
-    private readonly ListRepository _lists;
-
-    public TaskRunnerParentCompletionTests()
-    {
-        _ctx = _db.CreateContext();
-        _tasks = new TaskRepository(_ctx);
-        _lists = new ListRepository(_ctx);
-    }
-
-    public void Dispose() { _ctx.Dispose(); _db.Dispose(); }
-
-    [Fact]
-    public async Task ChildMarkedDone_LastOne_ParentFinalized()
-    {
-        var listId = Guid.NewGuid().ToString();
-        await _lists.AddAsync(new ListEntity { Id = listId, Name = "L", CreatedAt = DateTime.UtcNow });
-
-        var parent = new TaskEntity
-        {
-            Id = Guid.NewGuid().ToString(),
-            ListId = listId,
-            Title = "p",
-            Status = TaskStatus.Idle,
-            PlanningPhase = PlanningPhase.Finalized,
-            CreatedAt = DateTime.UtcNow,
-            CommitType = "chore",
-        };
-        await _tasks.AddAsync(parent);
-
-        var c1 = new TaskEntity
-        {
-            Id = Guid.NewGuid().ToString(),
-            ListId = listId,
-            Title = "c1",
-            Status = TaskStatus.Done,
-            CreatedAt = DateTime.UtcNow,
-            CommitType = "chore",
-            ParentTaskId = parent.Id,
-        };
-        var c2 = new TaskEntity
-        {
-            Id = Guid.NewGuid().ToString(),
-            ListId = listId,
-            Title = "c2",
-            Status = TaskStatus.Running,
-            CreatedAt = DateTime.UtcNow,
-            CommitType = "chore",
-            ParentTaskId = parent.Id,
-        };
-        await _tasks.AddAsync(c1);
-        await _tasks.AddAsync(c2);
-
-        // Simulate the runner finishing the second child:
-        await _tasks.MarkDoneAsync(c2.Id, DateTime.UtcNow, "done");
-        if (c2.ParentTaskId is not null)
-            await _tasks.TryCompleteParentAsync(c2.ParentTaskId);
-
-        var parentLoaded = await _tasks.GetByIdAsync(parent.Id);
-        Assert.Equal(TaskStatus.Done, parentLoaded!.Status);
-        Assert.NotNull(parentLoaded.FinishedAt);
-    }
-}

tests/ClaudeDo.Worker.Tests/Services/QueueServiceSlotGuardTests.cs

@@ -46,7 +46,7 @@ public sealed class QueueServiceSlotGuardTests : IDisposable
     private QueueWaker _waker = null!;
 
     private (QueueService service, FakeClaudeProcess fakeProcess) CreateService(
-        Func<string, string, string, Func<string, Task>, CancellationToken, Task<RunResult>>? handler = null)
+        Func<string, string, IReadOnlyList<string>, Func<string, Task>, CancellationToken, Task<RunResult>>? handler = null)
     {
         var fake = new FakeClaudeProcess(handler);
         var broadcaster = new HubBroadcaster(new FakeHubContext());

tests/ClaudeDo.Worker.Tests/Services/QueueServiceTests.cs

@@ -47,7 +47,7 @@ public sealed class QueueServiceTests : IDisposable
     private QueueWaker _waker = null!;
 
     private (QueueService service, FakeClaudeProcess fakeProcess) CreateService(
-        Func<string, string, string, Func<string, Task>, CancellationToken, Task<RunResult>>? handler = null)
+        Func<string, string, IReadOnlyList<string>, Func<string, Task>, CancellationToken, Task<RunResult>>? handler = null)
     {
         var fake = new FakeClaudeProcess(handler);
         var broadcaster = new HubBroadcaster(new FakeHubContext());
@@ -118,7 +118,7 @@ public sealed class QueueServiceTests : IDisposable
     {
         var (listId, _) = await SeedListWithAgentTag();
 
-        string? capturedArgs = null;
+        IReadOnlyList<string>? capturedArgs = null;
         string? capturedPrompt = null;
         var done = new TaskCompletionSource();
 
@@ -157,7 +157,9 @@ public sealed class QueueServiceTests : IDisposable
         _waker.Wake();
         await done.Task.WaitAsync(TimeSpan.FromSeconds(5));
 
-        Assert.Contains("--resume sess-1", capturedArgs);
+        Assert.NotNull(capturedArgs);
+        Assert.Contains("--resume", capturedArgs);
+        Assert.Contains("sess-1", capturedArgs);
         Assert.Equal("fix the bug", capturedPrompt);
 
         // Feedback is cleared after the run reaches a successful terminal state (post-run),
@@ -346,19 +348,19 @@ public sealed class QueueServiceTests : IDisposable
 
 internal sealed class FakeClaudeProcess : IClaudeProcess
 {
-    private readonly Func<string, string, string, Func<string, Task>, CancellationToken, Task<RunResult>> _handler;
+    private readonly Func<string, string, IReadOnlyList<string>, Func<string, Task>, CancellationToken, Task<RunResult>> _handler;
     private int _callCount;
 
     public int CallCount => _callCount;
 
     public FakeClaudeProcess(
-        Func<string, string, string, Func<string, Task>, CancellationToken, Task<RunResult>>? handler = null)
+        Func<string, string, IReadOnlyList<string>, Func<string, Task>, CancellationToken, Task<RunResult>>? handler = null)
     {
         _handler = handler ?? ((_, _, _, _, _) =>
             Task.FromResult(new RunResult { ExitCode = 0, ResultMarkdown = "ok" }));
     }
 
-    public async Task<RunResult> RunAsync(string arguments, string prompt, string workingDirectory,
+    public async Task<RunResult> RunAsync(IReadOnlyList<string> arguments, string prompt, string workingDirectory,
         Func<string, Task> onStdoutLine, CancellationToken ct)
     {
         Interlocked.Increment(ref _callCount);

tests/ClaudeDo.Worker.Tests/Services/TaskMergeServiceTests.cs

@@ -531,6 +531,8 @@ public class TaskMergeServiceTests : IDisposable
         Assert.Equal(TaskStatus.Done, updated!.Status);
         var wt = await new WorktreeRepository(ctx).GetByTaskIdAsync(task.Id);
         Assert.Equal(WorktreeState.Merged, wt!.State);
+        // Approve removes the worktree so merged worktrees don't pile up.
+        Assert.False(Directory.Exists(wtCtx.WorktreePath));
     }
 
     [Fact]
@@ -621,6 +623,72 @@ public class TaskMergeServiceTests : IDisposable
         // Cleanup
         GitRepoFixture.RunGit(repo.RepoDir, "merge", "--abort");
     }
+    [Fact]
+    public async Task GetConflictsAsync_AfterConflictMerge_ReturnsOursAndTheirs()
+    {
+        if (!GitRepoFixture.IsGitAvailable()) return;
+
+        var db = NewDb();
+        var repo = NewRepo();
+        GitRepoFixture.RunGit(repo.RepoDir, "branch", "-m", "main");
+        File.WriteAllText(Path.Combine(repo.RepoDir, "README.md"), "# main change\n");
+        GitRepoFixture.RunGit(repo.RepoDir, "commit", "-am", "main change");
+
+        var wtPath = Path.Combine(Path.GetTempPath(), $"wt_{Guid.NewGuid():N}");
+        _wtCleanups.Add((repo.RepoDir, wtPath));
+        GitRepoFixture.RunGit(repo.RepoDir, "worktree", "add", "-b", "claudedo/c1", wtPath, repo.BaseCommit);
+        File.WriteAllText(Path.Combine(wtPath, "README.md"), "# branch change\n");
+        GitRepoFixture.RunGit(wtPath, "commit", "-am", "branch change");
+
+        var (_, task) = await SeedListAndTask(db, workingDir: repo.RepoDir, status: TaskStatus.WaitingForReview);
+        await SeedWorktree(db, task.Id, wtPath, "claudedo/c1", repo.BaseCommit);
+
+        var (svc, _) = BuildService(db);
+        var start = await svc.MergeAsync(task.Id, "main", false, "msg", leaveConflictsInTree: true, CancellationToken.None);
+        Assert.Equal(TaskMergeService.StatusConflict, start.Status);
+
+        var conflicts = await svc.GetConflictsAsync(task.Id, CancellationToken.None);
+
+        Assert.Equal(task.Id, conflicts.TaskId);
+        var file = Assert.Single(conflicts.Files);
+        Assert.Equal("README.md", file.Path);
+        Assert.Contains("main change", file.Ours);
+        Assert.Contains("branch change", file.Theirs);
+        Assert.NotNull(file.Base);
+
+        GitRepoFixture.RunGit(repo.RepoDir, "merge", "--abort");
+    }
+
+    [Fact]
+    public async Task WriteResolutionAsync_ThenContinue_CompletesMerge()
+    {
+        if (!GitRepoFixture.IsGitAvailable()) return;
+
+        var db = NewDb();
+        var repo = NewRepo();
+        GitRepoFixture.RunGit(repo.RepoDir, "branch", "-m", "main");
+        File.WriteAllText(Path.Combine(repo.RepoDir, "README.md"), "# main change\n");
+        GitRepoFixture.RunGit(repo.RepoDir, "commit", "-am", "main change");
+
+        var wtPath = Path.Combine(Path.GetTempPath(), $"wt_{Guid.NewGuid():N}");
+        _wtCleanups.Add((repo.RepoDir, wtPath));
+        GitRepoFixture.RunGit(repo.RepoDir, "worktree", "add", "-b", "claudedo/c2", wtPath, repo.BaseCommit);
+        File.WriteAllText(Path.Combine(wtPath, "README.md"), "# branch change\n");
+        GitRepoFixture.RunGit(wtPath, "commit", "-am", "branch change");
+
+        var (_, task) = await SeedListAndTask(db, workingDir: repo.RepoDir, status: TaskStatus.WaitingForReview);
+        await SeedWorktree(db, task.Id, wtPath, "claudedo/c2", repo.BaseCommit);
+
+        var (svc, _) = BuildService(db);
+        await svc.MergeAsync(task.Id, "main", false, "msg", leaveConflictsInTree: true, CancellationToken.None);
+
+        await svc.WriteResolutionAsync(task.Id, "README.md", "# resolved by user\n", CancellationToken.None);
+        var result = await svc.ContinueMergeAsync(task.Id, CancellationToken.None);
+
+        Assert.Equal(TaskMergeService.StatusMerged, result.Status);
+        Assert.Equal("# resolved by user\n", File.ReadAllText(Path.Combine(repo.RepoDir, "README.md")));
+        Assert.False(await new GitService().IsMidMergeAsync(repo.RepoDir));
+    }
 }
 
 #region Test doubles

tests/ClaudeDo.Worker.Tests/State/TaskStateServiceTests.cs

@@ -243,6 +243,17 @@ public sealed class TaskStateServiceTests : IDisposable
         Assert.Equal(TaskStatus.Done, await GetStatusAsync(id));
     }
 
+    [Fact]
+    public async Task FailAsync_FromWaitingForReview_IsNoOp()
+    {
+        var id = await SeedTaskAsync(TaskStatus.WaitingForReview);
+
+        var result = await _sut.FailAsync(id, DateTime.UtcNow, "oops", default);
+
+        Assert.False(result.Ok);
+        Assert.Equal(TaskStatus.WaitingForReview, await GetStatusAsync(id));
+    }
+
     // ─── CancelAsync ──────────────────────────────────────────────────────
 
     [Fact]

tests/ClaudeDo.Worker.Tests/UiVm/TasksIslandViewModelPlanningTests.cs

@@ -81,7 +81,6 @@ sealed class FakeWorkerClient : IWorkerClient
     public Task<MergeTargetsDto?> GetMergeTargetsAsync(string taskId) => Task.FromResult<MergeTargetsDto?>(null);
     public Task<IReadOnlyList<SubtaskDiffDto>> GetPlanningAggregateAsync(string planningTaskId) => Task.FromResult<IReadOnlyList<SubtaskDiffDto>>(Array.Empty<SubtaskDiffDto>());
     public Task<CombinedDiffResultDto?> BuildPlanningIntegrationBranchAsync(string planningTaskId, string targetBranch) => Task.FromResult<CombinedDiffResultDto?>(null);
-    public Task MergeAllPlanningAsync(string planningTaskId, string targetBranch) => Task.CompletedTask;
     public Task ContinuePlanningMergeAsync(string planningTaskId) => Task.CompletedTask;
     public Task AbortPlanningMergeAsync(string planningTaskId) => Task.CompletedTask;
 

tests/ClaudeDo.Worker.Tests/WaitingForChildrenLifecycleTests.cs

@@ -2,6 +2,7 @@ using ClaudeDo.Data;
 using ClaudeDo.Data.Models;
 using ClaudeDo.Data.Repositories;
 using ClaudeDo.Worker.Tests.Infrastructure;
+using Microsoft.EntityFrameworkCore;
 using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
 using Xunit;
 
@@ -126,4 +127,150 @@ public sealed class WaitingForChildrenLifecycleTests : IDisposable
         var result = await _built.State.EnqueueAsync("kid", default);
         Assert.False(result.Ok);
     }
+
+    [Fact]
+    public async Task SequentialChildren_parent_only_advances_after_both_are_terminal()
+    {
+        // Arrange: parent WaitingForChildren, child1 Done, child2 blocked by child1 (Running)
+        using (var ctx = _db.CreateContext())
+        {
+            ctx.Lists.Add(new ListEntity { Id = "l1", Name = "L", CreatedAt = DateTime.UtcNow });
+            ctx.Tasks.Add(new TaskEntity { Id = "par", ListId = "l1", Title = "Parent",
+                Status = TaskStatus.WaitingForChildren, CreatedAt = DateTime.UtcNow });
+            ctx.Tasks.Add(new TaskEntity { Id = "c1", ListId = "l1", Title = "Child1",
+                Status = TaskStatus.Running, ParentTaskId = "par", CreatedAt = DateTime.UtcNow });
+            ctx.Tasks.Add(new TaskEntity { Id = "c2", ListId = "l1", Title = "Child2",
+                Status = TaskStatus.Running, ParentTaskId = "par", BlockedByTaskId = "c1",
+                CreatedAt = DateTime.UtcNow });
+            await ctx.SaveChangesAsync();
+        }
+
+        // Act: complete child1 — parent must stay WaitingForChildren because child2 is still running
+        await _built.State.CompleteAsync("c1", DateTime.UtcNow, "c1 ok", default);
+        using (var ctx = _db.CreateContext())
+        {
+            var par = await new TaskRepository(ctx).GetByIdAsync("par");
+            Assert.Equal(TaskStatus.WaitingForChildren, par!.Status);
+        }
+
+        // Act: complete child2 — now all children are terminal; parent must advance
+        await _built.State.CompleteAsync("c2", DateTime.UtcNow, "c2 ok", default);
+        using (var ctx = _db.CreateContext())
+        {
+            var par = await new TaskRepository(ctx).GetByIdAsync("par");
+            Assert.Equal(TaskStatus.WaitingForReview, par!.Status);
+        }
+    }
+
+    [Fact]
+    public async Task WaitingForChildren_parent_can_be_cancelled()
+    {
+        using (var ctx = _db.CreateContext())
+        {
+            ctx.Lists.Add(new ListEntity { Id = "l1", Name = "L", CreatedAt = DateTime.UtcNow });
+            ctx.Tasks.Add(new TaskEntity { Id = "par", ListId = "l1", Title = "Parent",
+                Status = TaskStatus.WaitingForChildren, CreatedAt = DateTime.UtcNow });
+            await ctx.SaveChangesAsync();
+        }
+
+        var result = await _built.State.CancelAsync("par", DateTime.UtcNow, default);
+
+        Assert.True(result.Ok);
+        using (var ctx = _db.CreateContext())
+        {
+            var par = await new TaskRepository(ctx).GetByIdAsync("par");
+            Assert.Equal(TaskStatus.Cancelled, par!.Status);
+        }
+    }
+
+    // ─── FinalizePlanningAsync ────────────────────────────────────────────
+
+    private async Task<string> SeedActivePlanningParentAsync(string id = "par")
+    {
+        using var ctx = _db.CreateContext();
+        if (!ctx.Lists.Any())
+            ctx.Lists.Add(new ListEntity { Id = "l1", Name = "L", CreatedAt = DateTime.UtcNow });
+        ctx.Tasks.Add(new TaskEntity
+        {
+            Id = id,
+            ListId = "l1",
+            Title = "Parent",
+            Status = TaskStatus.Idle,
+            PlanningPhase = PlanningPhase.Active,
+            CreatedAt = DateTime.UtcNow,
+        });
+        await ctx.SaveChangesAsync();
+        return id;
+    }
+
+    private async Task SeedChildAsync(string parentId, string childId, TaskStatus status = TaskStatus.Idle)
+    {
+        using var ctx = _db.CreateContext();
+        ctx.Tasks.Add(new TaskEntity
+        {
+            Id = childId,
+            ListId = "l1",
+            Title = "Child",
+            Status = status,
+            ParentTaskId = parentId,
+            CreatedAt = DateTime.UtcNow,
+        });
+        await ctx.SaveChangesAsync();
+    }
+
+    [Fact]
+    public async Task FinalizePlanning_WithChildren_SetsWaitingForChildren_AndPlanningFinalized()
+    {
+        await SeedActivePlanningParentAsync();
+        await SeedChildAsync("par", "c1");
+        await SeedChildAsync("par", "c2");
+
+        var result = await _built.State.FinalizePlanningAsync("par", default);
+
+        Assert.True(result.Ok);
+        using var ctx = _db.CreateContext();
+        var parent = await new TaskRepository(ctx).GetByIdAsync("par");
+        Assert.Equal(TaskStatus.WaitingForChildren, parent!.Status);
+        Assert.Equal(PlanningPhase.Finalized, parent.PlanningPhase);
+    }
+
+    [Fact]
+    public async Task FinalizePlanning_WithChildren_ThenAllChildrenTerminal_AdvancesToWaitingForReview()
+    {
+        await SeedActivePlanningParentAsync();
+        await SeedChildAsync("par", "c1");
+        await SeedChildAsync("par", "c2");
+
+        await _built.State.FinalizePlanningAsync("par", default);
+
+        // Manually transition parent to WaitingForChildren so CompleteAsync works on the children.
+        // Children are Idle — complete them by seeding them as Running first.
+        using (var ctx = _db.CreateContext())
+        {
+            await ctx.Tasks.Where(t => t.Id == "c1").ExecuteUpdateAsync(s => s.SetProperty(t => t.Status, TaskStatus.Running));
+            await ctx.Tasks.Where(t => t.Id == "c2").ExecuteUpdateAsync(s => s.SetProperty(t => t.Status, TaskStatus.Running));
+        }
+
+        await _built.State.CompleteAsync("c1", DateTime.UtcNow, "ok", default);
+        using (var ctx = _db.CreateContext())
+            Assert.Equal(TaskStatus.WaitingForChildren, (await new TaskRepository(ctx).GetByIdAsync("par"))!.Status);
+
+        await _built.State.CompleteAsync("c2", DateTime.UtcNow, "ok", default);
+        using (var ctx = _db.CreateContext())
+            Assert.Equal(TaskStatus.WaitingForReview, (await new TaskRepository(ctx).GetByIdAsync("par"))!.Status);
+    }
+
+    [Fact]
+    public async Task FinalizePlanning_WithNoChildren_SetsWaitingForReview_Directly()
+    {
+        await SeedActivePlanningParentAsync();
+
+        var result = await _built.State.FinalizePlanningAsync("par", default);
+
+        Assert.True(result.Ok);
+        using var ctx = _db.CreateContext();
+        var parent = await new TaskRepository(ctx).GetByIdAsync("par");
+        Assert.Equal(TaskStatus.WaitingForReview, parent!.Status);
+        Assert.Equal(PlanningPhase.Finalized, parent.PlanningPhase);
+    }
 }