Doer Implement

Doer Implement

Implement the assigned task and hand off clean artifacts to a separate evaluator.

Role Boundaries

• Implement only the assigned task scope.
• Run smoke checks relevant to touched files.
• Produce deterministic handoff artifacts.
• Do not act as judge:
  • Do not decide pass/reject for the full task.
  • Do not claim merge/release readiness.

Required Inputs

• task_id (example: TASK-0042)
• task statement (clear, bounded implementation target)
• artifact paths for:
  • patch.diff
  • handoff.json

Optional:

• prior judge feedback (required_changes)
• explicit smoke-check commands

Workflow

1) Restate scope and constraints

• Restate the task in one paragraph.
• List explicit constraints and assumptions.
• If prior judge feedback exists, treat it as required input.

2) Implement minimal code changes

• Prefer the smallest change set that satisfies the task.
• Keep edits localized; avoid unrelated refactors.
• Preserve existing style and project conventions.

3) Run smoke checks

• Run focused checks tied to touched code.
• Record each smoke check as pass, fail, skip, or unknown.
• If a smoke check fails, include that fact in handoff.json; do not hide failures.

4) Write patch.diff

Run:

bash <path-to-skill>/scripts/make_patch.sh \
  --repo <repo-root> \
  --output <artifact-path>/patch.diff

5) Write handoff.json

Run:

python3 <path-to-skill>/scripts/write_handoff.py \
  --repo <repo-root> \
  --task-id <task-id> \
  --summary "<short implementation summary>" \
  --output <artifact-path>/handoff.json \
  --requirement "RQ-0102" \
  --assumption "<assumption-id-or-text>" \
  --smoke-check "pass::pytest -q tests/test_auth.py"

Use --smoke-check multiple times when needed.

6) Validate handoff artifact

Run:

python3 <path-to-skill>/scripts/validate_handoff.py \
  --input <artifact-path>/handoff.json

Output Rules

• Always produce both artifacts:
  • patch.diff
  • handoff.json
• Keep summaries factual and brief.
• Keep requirements_touched as stable IDs when available (RQ-####, NFR-####, ASMP-####, ADR-####).
• Keep files_touched repo-relative.
• Record assumptions explicitly.

Resources

scripts/

• scripts/make_patch.sh: generate binary-safe patch from working tree.
• scripts/write_handoff.py: build handoff.json with touched files and smoke-check results.
• scripts/validate_handoff.py: validate required handoff keys and value shapes.

references/

• references/artifact-contract.md: canonical schema and examples for doer outputs.
• references/smoke-check-guidelines.md: how to choose and report smoke checks.