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feat(worker): clamp max-turns to a configurable ceiling

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Runaway sessions were the single biggest cost driver: model_presets was
never persisted (stayed code-only), default_max_turns shipped at 100, and
ResolveMaxTurns had no upper bound, so a task/list override could run
hundreds of turns unchecked.

- TaskRunner.ResolveMaxTurns now clamps the resolved value to
  AppSettings.MaxTurnsCeiling (new column, default 80) and logs a warning
  with task id / requested / effective value when it clamps.
- default_max_turns default lowered from 100 to 40 (entity, EF config,
  and the seeded row via the new AddMaxTurnsCeiling migration).
- AppSettingsRepository.GetAsync backfills model_presets with the
  shipping defaults on first read instead of leaving the column null.
- Settings > General's per-model preset table and the task/list agent
  editor now show a hint when a set max-turns value exceeds the ceiling.
This commit is contained in:
mika kuns
2026-08-05 15:40:02 +02:00
parent 83ea429b8a
commit 08ac8bf7b1
22 changed files with 1093 additions and 50 deletions
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src/ClaudeDo.Worker/CLAUDE.md
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@@ -161,7 +161,7 @@ A child that hits a roadblock (fails, or reports `CLAUDEDO_BLOCKED` roadblocks)
1. Load task + list metadata from DB; resolve config from `list_config` + task-level overrides (model, system_prompt, agent_path)
2. Create worktree (if `WorkingDir` set) or sandbox directory
3. Mark task "running", broadcast `TaskStarted`
4. Resolve the effective model (task → list → `AppSettings.DefaultModel`), then take its `ModelPresets` row via `ModelPresets.For(global.ModelPresets, model, global.DefaultMaxTurns)`: the model string is resolved through `ModelRegistry.TryNormalizeAlias` first, so a full CLI model id (e.g. `claude-sonnet-4-6`, not just the bare `sonnet`/`opus`/`haiku`/`fable` aliases) still hits its alias's preset row; only a truly unrecognized model falls back to a synthesized row using `AppSettings.DefaultMaxTurns` (never a hardcoded number, and never throws — an unknown model must not block a run). The preset supplies `--effort` and the **global** max-turns default (task/list `MaxTurns` overrides still win). Build CLI args via `ClaudeArgsBuilder`; inject attachment absolute paths via `TaskPromptComposer.Compose` (appends a read-only "## Reference files" section); invoke `ClaudeProcess` with task prompt
4. Resolve the effective model (task → list → `AppSettings.DefaultModel`), then take its `ModelPresets` row via `ModelPresets.For(global.ModelPresets, model, global.DefaultMaxTurns)`: the model string is resolved through `ModelRegistry.TryNormalizeAlias` first, so a full CLI model id (e.g. `claude-sonnet-4-6`, not just the bare `sonnet`/`opus`/`haiku`/`fable` aliases) still hits its alias's preset row; only a truly unrecognized model falls back to a synthesized row using `AppSettings.DefaultMaxTurns` (never a hardcoded number, and never throws — an unknown model must not block a run). The preset supplies `--effort` and the **global** max-turns default (task/list `MaxTurns` overrides still win). The task/list/global-resolved value is then hard-clamped to `AppSettings.MaxTurnsCeiling` (default 80) via `TaskRunner.ResolveMaxTurns` — a task or list override above the ceiling still starts, just capped, and a Warn is logged with the task id, requested, and effective value. Build CLI args via `ClaudeArgsBuilder`; inject attachment absolute paths via `TaskPromptComposer.Compose` (appends a read-only "## Reference files" section); invoke `ClaudeProcess` with task prompt
5. Stream NDJSON output through `StreamAnalyzer`; lines forwarded to log file and SignalR (`TaskMessage`)
6. On success: auto-commit changes (worktree only), store run record, mark "done"
7. On failure: retry once if session ID available (`--resume`), then mark "failed"