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+# Task Detail Redesign — Component Build Prompts
+
+Three isolated build tasks (one per component). Each runs in its own worktree off
+`main`, with the project CLAUDE.md auto-loaded. Full design context lives in
+`docs/superpowers/specs/2026-06-04-task-detail-redesign-design.md` — every task
+must read it first.
+
+Shared rules (all three):
+- Build a **standalone** `UserControl` + dedicated `ViewModel` that renders fully
+  in the Avalonia previewer via **design-time sample data** (parameterless ctor
+  populating realistic values). Do **not** bind to `DetailsIslandViewModel`.
+- New files under `src/ClaudeDo.Ui/Views/Islands/Detail/` and
+  `src/ClaudeDo.Ui/ViewModels/Islands/Detail/`.
+- Use **only** tokens from `Design/Tokens.axaml` and classes from
+  `Design/IslandStyles.axaml`. No inline hex, no magic numbers where a token
+  exists. `PathIcon` fills geometry — stroke-only art is invisible.
+- Compiled bindings (`x:DataType`). MVVM via CommunityToolkit
+  (`[ObservableProperty]`, `[RelayCommand]`); VM inherits `ViewModelBase`.
+- **Do NOT modify** `DetailsIslandView.axaml`, `DetailsIslandViewModel.cs`,
+  `AgentStripView`, `SessionTerminalView`, or `TaskRunner.cs`.
+- Verify: `dotnet build src/ClaudeDo.Ui/ClaudeDo.Ui.csproj -c Release` is green.
+  Stage files explicitly by path (never `git add -A`). Commit with a conventional
+  message.
+
+---
+
+## TASK 1 — TaskHeaderBar
+
+(prompt text = task description; see below)
+
+## TASK 2 — DescriptionStepsCard
+
+## TASK 3 — WorkConsole
diff --git a/docs/superpowers/specs/2026-06-04-task-detail-redesign-design.md b/docs/superpowers/specs/2026-06-04-task-detail-redesign-design.md
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+# Task Detail Island Redesign — Design
+
+**Date:** 2026-06-04
+**Status:** Approved (design), pending implementation
+**Author:** brainstormed with user via visual companion
+
+## Problem
+
+The Detail island (`DetailsIslandView`, 413 lines) grew into one long scrolling
+column as features piled on. The user has to scroll constantly. Specific pains
+(confirmed by the user):
+
+- **Everything is always stacked** — Steps, Description, Terminal, and several
+  conditional sections share one scroll column with no way to hide/fold.
+- **Duplicated info** — `model` shows in the gear flyout *and* the agent strip;
+  the branch line shows in the agent strip *and* as the terminal label.
+- **Agent strip is a heavy 5-row block** pinned near the bottom even when idle.
+- **Steps + Description take a lot of room** before the action controls.
+
+The terminal staying prominent is *fine* — not a pain point.
+
+## Solution overview
+
+Replace the linear body with a **fixed-region layout** built from **3 new
+self-contained components**, plus a roadblock band. Top region (header + details
+card) stays put; the work console is pinned to the lower third.
+
+```
+┌─────────────────────────────────────┐
+│ TaskHeaderBar      (separated title) │   #T42 · title · 🗑/💀 · ⚙
+├─────────────────────────────────────┤
+│ DescriptionStepsCard                 │   card; text ⇄ steps toggle icon
+│   (Preview = what Claude gets)       │   copy · preview/edit
+├─────────────────────────────────────┤
+│ Roadblock band (only when failed)    │   ⚠ message · Continue · Reset&Retry
+├─────────────────────────────────────┤
+│ WorkConsole       (pinned, terminal) │   ●●● · model·turns·diff
+│   tabs: Output | Actions | Session   │
+└─────────────────────────────────────┘
+```
+
+## The 3 components
+
+Each is a standalone `UserControl` + dedicated `ViewModel` with **design-time
+sample data** so it renders fully in the Avalonia previewer in isolation. Built
+in separate worktrees; **none touch `DetailsIslandView.axaml` or
+`DetailsIslandViewModel.cs`** (that is the wiring session). All visuals use
+**only** the existing design tokens (`Design/Tokens.axaml`) and style classes
+(`Design/IslandStyles.axaml`) — no hardcoded colors/sizes.
+
+New folder: `src/ClaudeDo.Ui/Views/Islands/Detail/`
+New VMs: `src/ClaudeDo.Ui/ViewModels/Islands/Detail/`
+
+### 1. TaskHeaderBar
+
+- **Layout:** one row — `#T42` id badge (mono `meta`, copyable) · editable title
+  `TextBox` (transparent, `FontSizeTaskTitle`, wraps) · **trash/skull button** ·
+  ⚙ gear button with the agent-settings flyout.
+- **Trash → Skull:** when **not** running show `Icon.Trash` (delete task,
+  `BloodBrush`); when **running** show a **skull** glyph (kill session). One
+  button, swaps icon + command on running state. Skull is a *new* filled
+  geometry to add to `IslandStyles.axaml` resources (`Icon.Skull`).
+- **No done circle. No star** (the star lives on the task card/row already).
+- **Gear flyout:** keep the existing agent-settings content verbatim — Model
+  combo + `InheritedBadge` + reset; Max Turns `NumericUpDown` + badge + reset;
+  System Prompt `TextBox` + "prepended" hint; Agent File combo + badge + reset.
+  Disabled while running (`IsAgentSectionEnabled`).
+- **Existing bindings reused:** `TaskIdBadge`, `EditableTitle`, `DeleteTaskCommand`,
+  `StopCommand`, `IsRunning`, `IsAgentSectionEnabled`, all the agent-settings
+  members (`TaskModelOptions`/`TaskModelSelection`/`ModelBadge`/
+  `ResetTaskModelCommand`/`TaskMaxTurns`/`TurnsBadge`/`ResetTaskTurnsCommand`/
+  `TaskSystemPrompt`/`EffectiveSystemPromptHint`/`TaskAgentOptions`/
+  `TaskSelectedAgent`/`AgentBadge`/`ResetTaskAgentCommand`).
+
+### 2. DescriptionStepsCard
+
+A `Border.island`-style card. The single explicitly-requested "separate
+component." Top-right **toggle icon** switches the card between **Description**
+and **Steps** views; the icon shows the *other* mode (in Description view → steps
+icon `Icon.MoreHorizontal`/list glyph; in Steps view → text glyph).
+
+- **Header row:** small `section-label` ("DETAILS" / "STEPS") · spacer · **Copy**
+  icon button (`Icon.Copy`) · **Preview/Edit** toggle button (Description view
+  only) · **toggle icon** (top-right).
+- **Description view:**
+  - *Preview mode* = renders **what Claude gets** via `MarkdownView`: the
+    canonical composed text (Title + Description + open steps — see below).
+  - *Edit mode* = raw description `TextBox` (mono, `Surface2Brush`, multiline).
+- **Steps view:** add-step input (Enter to add) + list of step rows (check
+  circle `Ellipse.task-check` + inline-editable title, `subtask-row` style).
+- **Copy** copies the **formatted** version (Title + Description + open steps),
+  nothing else, to the clipboard.
+- **Existing bindings reused (when wired):** `EditableDescription`,
+  `IsEditingDescription`/`ToggleEditDescriptionCommand`, `Subtasks`,
+  `NewSubtaskTitle`/`AddSubtaskCommand`, `ToggleSubtaskDoneCommand`,
+  `CommitSubtaskEditCommand`.
+- **New members (defined on the component VM now, lifted into
+  `DetailsIslandViewModel` at wiring):** `IsStepsView` + `ToggleCardViewCommand`;
+  `ComposedPreview` (string, the canonical format); `CopyFormattedCommand`.
+
+### 3. WorkConsole
+
+Terminal-styled card (`Border.terminal`) pinned to the lower third.
+
+- **Title bar:** three cosmetic traffic-light dots (`Ellipse.dot-red`,
+  `dot-yellow`, `dot-green`) on the left; centered/!right small **info header**:
+  `model · {turns} turns · +adds −dels` (mono `meta`; `diff-add`/`diff-del`
+  classes for the numbers). **No branch line.** LIVE/DONE/FAILED chip
+  (`live-chip`) on the right.
+- **Tab strip:** `Output` | `Actions` | `Session`.
+  - **Output** — the live log. Reuse `SessionTerminalView` (`Entries`, `Label`,
+    `IsRunning`, `IsDone`, `IsFailed`) for the body, *or* the same
+    timestamp+`SelectableTextBlock` row template.
+  - **Actions** — worktree management: merge-target `ComboBox`, **Open Diff**,
+    **Worktree**, **Merge** (+ planning **Merge All Subtasks** when planning
+    parent). Bindings: `MergeTargetBranches`/`SelectedMergeTarget`,
+    `OpenDiffCommand`, `OpenWorktreeCommand`, `MergeAllCommand`/`CanMergeAll`/
+    `MergeAllDisabledReason`/`MergeAllError`, `ReviewCombinedDiffCommand`.
+  - **Session** — review + outcomes: feedback `TextBox` + Approve/Reject/Park/
+    Cancel (`ReviewFeedback`, `ApproveReviewCommand`, `RejectReviewCommand`,
+    `ParkReviewCommand`, `CancelReviewCommand`, shown when `IsWaitingForReview`)
+    and the child-outcomes list (`ChildOutcomes`, `HasChildOutcomes`).
+- **Roadblock band** (above the tabs, inside or just above the card): visible on
+  `IsFailed`/`IsCancelled`; shows a warning (`Icon.Warning`, `BloodBrush`) and
+  **Continue** (`ContinueCommand`, `ShowContinue`) + **Reset & Retry**
+  (`ResetAndRetryCommand`, `ShowResetAndRetry`).
+- **Info-header bindings:** `Model`, `Turns`, `DiffAdditions`, `DiffDeletions`,
+  `IsRunning`/`IsDone`/`IsFailed`.
+
+## Combined Description + Steps behavior
+
+Steps are part of the description. When the task runs, the **effective prompt =
+Title + Description + only the OPEN steps**. Resolved steps are dropped.
+
+**Canonical composed format** (shared by the Worker prompt, the card's Preview,
+and Copy):
+
+```
+<Title>
+
+<Description>
+
+## Sub-Tasks
+- [ ] <open step 1>
+- [ ] <open step 2>
+```
+
+- Omit the `## Sub-Tasks` section entirely when no open steps remain.
+- Omit the description paragraph when description is empty.
+
+**Worker change (wiring session, by Claude):** `TaskRunner.cs:104-113` currently
+appends *all* subtasks with `[x]`/`[ ]`. Change to append **only incomplete**
+subtasks as `- [ ]` lines (drop completed). Factor the format into a shared
+`TaskPromptComposer` in `ClaudeDo.Data` (referenced by both Worker and UI) so the
+card's Preview and the real prompt never diverge.
+
+## Color / token guidelines (mandatory)
+
+- Backgrounds: `IslandBackgroundBrush`, `Surface2Brush`, `Surface3Brush`,
+  `DeepBrush`, `VoidBrush` (terminal). Borders: `LineBrush`/`LineBrightBrush`,
+  `HairlineOverlayBrush`. Text: `TextBrush`/`TextDimBrush`/`TextMuteBrush`/
+  `TextFaintBrush`. Accent: `AccentBrush`/`AccentDimBrush`. Status: blood/peat/
+  moss/sage + the `*TintBrush` pairs.
+- Radii: `IslandCornerRadius` (14), `ButtonCornerRadius` (6), `InputCornerRadius`
+  (8). Spacing: `SpaceXs..Space2Xl`. Fonts: `SansFont`, `MonoFont`; sizes
+  `FontSizeMono`/`FontSizeBody`/`FontSizeTaskTitle`.
+- Reuse style classes: `island`, `island-header`, `chip`, `btn`/`btn accent`/
+  `primary`/`danger`, `icon-btn`, `flat`, `terminal`, `dot-red/yellow/green`,
+  `live-chip`, `task-check`, `subtask-row`, `section-label`, `field-label`,
+  `meta`, `diff-add`/`diff-del`, `diff-meter-*`.
+- **No inline hex, no magic numbers** where a token exists. `PathIcon` fills
+  geometry — line-art must be filled or stroked via `Path`.
+
+## Build / isolation strategy
+
+1. Three ClaudeDo tasks (list "Claude do", repo `C:\Private\ClaudeDo`), one per
+   component, run sequentially in their own worktrees.
+2. Each delivers: `Detail/<Name>.axaml` + `.axaml.cs` + `Detail/<Name>ViewModel.cs`
+   with design-time sample data; the `ClaudeDo.Ui` project **builds green**
+   (`dotnet build src/ClaudeDo.Ui/ClaudeDo.Ui.csproj -c Release`).
+3. Components are visual-only against sample data. Real `DetailsIslandViewModel`
+   binding + the Worker steps→prompt change happen in the **wiring session**
+   (this Claude session, done while the build tasks run).
+
+## Wiring plan (this session)
+
+- Implement `TaskPromptComposer` + the `TaskRunner` open-steps change + a unit
+  test in `ClaudeDo.Worker.Tests`/`Data.Tests`.
+- After the 3 components land: host them in `DetailsIslandView` (header top,
+  card below, roadblock band, work console pinned bottom), lift the new card VM
+  members into `DetailsIslandViewModel`, repoint `x:DataType`, delete the
+  superseded inline sections + `AgentStripView` usage. Update locale parity and
+  the test fakes.
+
+## Monitoring loop (this session)
+
+While the build tasks run: poll each via `get_task` / `get_task_log` /
+`get_task_diff`, summarize progress and anything a session got stuck on, and if a
+session is blocked on something missing, add a small follow-up task to the
+"Claude do" list.