M2 — pi SDK session harness + prompt/skill composer #3

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david · 2026-07-24T00:53:30Z

david commented

2026-07-24 00:53:30 +00:00

Goal: reusable helpers to (a) compose a stage system prompt and (b) run one stage as a fresh pi session.

Tasks

Prompt/skill composer: composeStagePrompt({ wrapper, skillPath, defaults }) → { systemPrompt, degraded }. Reads external skill SKILL.md body and concatenates wrapper + skill body. Missing/unreadable → default body + degraded = true.
Session runner: runStage({ systemPrompt, tools, userPrompt }) → result wrapping createAgentSession() + session.prompt().
- Inject composed prompt via DefaultResourceLoader with systemPromptOverride (NOT additionalSkillPaths).
- cwd = process.cwd(); SessionManager.inMemory(); ModelRuntime.create(); set thinkingLevel from config.
- Per-stage least-privilege tool allowlist; subscribe to streaming events; session.dispose() in finally.

Depends on: M0.

Validation: composer unit tests (merge + missing-skill fallback). A read-only smoke stage runs, streams output, and disposes.

**Goal:** reusable helpers to (a) compose a stage system prompt and (b) run one stage as a fresh pi session. ### Tasks - [ ] Prompt/skill composer: `composeStagePrompt({ wrapper, skillPath, defaults }) → { systemPrompt, degraded }`. Reads external skill `SKILL.md` body and concatenates wrapper + skill body. Missing/unreadable → default body + `degraded = true`. - [ ] Session runner: `runStage({ systemPrompt, tools, userPrompt }) → result` wrapping `createAgentSession()` + `session.prompt()`. - Inject composed prompt via `DefaultResourceLoader` with `systemPromptOverride` (NOT `additionalSkillPaths`). - `cwd = process.cwd()`; `SessionManager.inMemory()`; `ModelRuntime.create()`; set `thinkingLevel` from config. - Per-stage least-privilege tool allowlist; subscribe to streaming events; `session.dispose()` in `finally`. **Depends on:** M0. **Validation:** composer unit tests (merge + missing-skill fallback). A read-only smoke stage runs, streams output, and disposes.

david referenced this issue from a commit

2026-07-24 03:47:22 +00:00

M2: pi SDK session harness + prompt/skill composer

david referenced this issue from a pull request that will close it,

2026-07-24 03:47:42 +00:00

M2 — pi SDK session harness + prompt/skill composer #12

david closed this issue

2026-07-24 09:57:20 +00:00

david referenced this issue from a commit

2026-07-24 09:57:22 +00:00

M2 — pi SDK session harness + prompt/skill composer (#12)

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