Collaboration record (conductor loop, docs/plans/CONDUCTOR.md): - round 1 (worker session worker-1, 2m28s): retry implemented per spec - conductor live test exposed spec gap: direct invocation lacked launcher env exports - round 2 (same worker session, 59s): spawnEnv made self-sufficient, but used PI_* where compose interpolates MOSAIC_* - conductor hotfix: 3-line rename to MOSAIC_PROVIDER/MOSAIC_MODEL/ MOSAIC_DATA_ROOT Final: node scripts/mosaic-task.mjs retry <runId> re-executes a run's task snapshot as a new run; live retry replied REMEMBERED; all suites green (24/32/14 + verify). Known limitation: retrying a run whose task used a RELATIVE mission path resolves it against the temp dir; lineage tracking deferred. Closes #25, closes #26, closes #27
52 lines
2.3 KiB
Markdown
52 lines
2.3 KiB
Markdown
# Conductor protocol — poor-man orchestration loop
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How the stack orchestrates headless pi workers to do work on itself.
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## Roles
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| Role | Runs where | Powers | Never has |
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|---|---|---|---|
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| **Conductor** | host (assistant or owner) | git (clone/commit/push), task dispatch, review, verification suites, Gitea | nothing new |
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| **Worker** | container (headless pi via `scripts/run-task.sh`) | read/write/edit/bash inside its workspace; persistent session on request | git credentials, docker socket, host filesystem |
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## The loop
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1. **Decompose**: conductor turns a goal into worker tasks small enough to
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specify completely in one prompt (file paths, acceptance criteria, style
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constraints, verification the worker can run itself, e.g. `node --check`).
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2. **Mirror**: conductor maintains the repo clone at
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`<dataRoot>/workspaces/stack-repo` (host-side git; workers see it read-write
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through their workspace mount).
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3. **Dispatch**: `scripts/run-task.sh run <worker-task.json>` — worker edits the
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clone. Session name `worker-<n>` keeps continuity across refinement rounds.
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4. **Extract**: `git -C <workspace> diff > patch` — the worker's entire output
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is a reviewable diff. Run record (result.json, stderr.txt) is the receipt.
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5. **Review**: conductor reads the diff line by line. Bad output → refine the
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prompt, re-dispatch (same session: "your patch had these problems…").
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6. **Integrate**: conductor applies the patch to the real repo, runs the full
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suites, commits and pushes. Suites failing → revert apply, back to step 5.
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7. **Record**: update CURRENT.md, BUILD-LOG, close the Gitea issue.
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## Guardrails
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- Workers never receive credentials; they never run git; they never leave the
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workspace (container is the boundary; tools allowlist is the gate).
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- Every worker diff is reviewed by the conductor before integration. No
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auto-apply. (Auto-apply would be a capability-policy decision for later.)
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- Verification is mechanical: suites + `node --check` / `bash -n` gates.
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- Recursive decomposition = "fail → smaller task", never "hope."
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## Worker task template
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```json
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{
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"taskVersion": 1,
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"id": "t-worker-<name>",
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"prompt": "<full spec: goal, files, constraints, acceptance, self-checks>",
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"workspace": "stack-repo",
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"capabilities": { "tools": ["read", "write", "edit", "bash"] },
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"session": "worker-1",
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"timeoutSeconds": 600
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}
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```
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