Chief Retro

Run a retrospective on the current milestone.

Scope Detection

Auto-detect the scope:

1. Read _plan/_todo.md in the active milestone.
2. If ALL tasks are marked [x] → milestone retro.
3. If some tasks remain → batch retro (covers only the latest completed batch).

Input Sources

Batch retro

• Latest _report/autopilot-run-batch-<N>.md
• _plan/_todo.md (completed vs remaining)
• _goal/ and _contract/ files
• git log for commits since the previous batch report (or milestone start)

Milestone retro

• ALL _report/ files (batch reports, task outputs, etc.)
• _plan/_todo.md (full history)
• _goal/ and _contract/ files
• git log for the entire milestone

Report Sections

Write the report with these sections:

# Retro: <milestone> — <batch N | milestone>

## Coverage Check

For each goal and contract file, check whether the work done satisfies it:

| File | Status | Notes |
|------|--------|-------|
| _goal/xxx.md | ✅ Satisfied / ⚠️ Partial / ❌ Missing | what's done or missing |
| _contract/xxx.md | ✅ / ⚠️ / ❌ | ... |

## Planned vs Delivered

- What was in the TODO
- What was actually completed
- What was skipped or changed mid-execution

## Blockers Hit

- Issues encountered during execution
- How they were resolved (or not)

## Lessons Learned

- Patterns observed (good and bad)
- Recurring problems
- Surprises or unexpected outcomes
- What worked well and should be repeated

## Proposed Rule Updates

For each proposal:
- **What:** the rule to add or change
- **Where:** which file in `.chief/_rules/` (e.g. `_standard/auth.md`, `_verification/tests.md`)
- **Why:** what happened that motivates this rule
- **Suggestion:** recommended for the user

## User Action Needed

Items requiring human decision:
- Uncovered goals or contracts that need another batch
- Decisions to promote to permanent rules
- Manual steps that automation couldn't handle

Output File

• Batch retro → .chief/<milestone>/_report/retro-batch-<N>.md
• Milestone retro → .chief/<milestone>/_report/retro-milestone.md

Where <N> matches the batch number being reviewed.

After Report

Present the proposed rule updates to the user. Ask:

"Want me to apply any of these rule proposals?"

• User picks which ones to apply.
• For each approved proposal, create or update the file in .chief/_rules/.
• For rejected proposals, leave them in the report only.

Rules

• NEVER skip the coverage check — this is the primary value of the retro.
• NEVER auto-apply rule proposals — always ask first.
• NEVER modify goals, contracts, or plans — retro is read-only on those. Only _rules/ can be updated.
• Use actual git log and file content — do not summarize from memory.
• Follow the rules hierarchy: AGENTS.md > .chief/_rules > milestone goals.