CP-7 retrospective: audit checkpoints, evidence quality, action items, and harvest candidates. Closes the V-model cycle and feeds the next run. Use via /retro after ship, escalate, or significant session.
Installs into .claude/skills of the current project.
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---
name: retro
description: >
CP-7 retrospective: audit checkpoints, evidence quality, action items,
and harvest candidates. Closes the V-model cycle and feeds the next run.
Use via /retro after ship, escalate, or significant session.
---
# /retro — CP-7 close the V
Every non-`tiny` shipped or escalated run gets a retro. Retro is **advisory** but strongly expected: it is how the harness improves.
## When to run
- After CP-6 ship (approved publish, merged PR, vault deliverable done)
- After escalate (capture why verifier failed)
- End of an `/ultragoal` phase (one retro per phase)
- Manual: `/retro <run-dir or spec path>`
## Phase 1 — Gather evidence bundle
Read:
1. Spec or card description + acceptance criteria
2. `04-projects/harness/runs/<id>/evidence/` (ledger, checkpoints.tsv, CP-* files)
3. `.claude/logs/loop-ledger.tsv` (last rows for this run)
4. `04-projects/<goal>/STATUS.md` if an ultragoal phase
## Phase 2 — Checkpoint audit
For each CP the lane required, mark Expected vs Actual vs Gap:
| CP | `tiny` | `normal` | `full` |
|---|---|---|---|
| CP-1 spec | skip | required | required |
| CP-3v component | skip | required | required |
| CP-4 integration | skip | skip | required if multi-task |
| CP-5 acceptance | if mutate | required | required |
| CP-6 ship | if external | if external | required |
## Phase 3 — Evidence quality pass
Ask:
- Any AC-n shipped without a PASS evidence row? (traceability violation)
- Any PASS row where observation is tool-return not artifact? (confident-but-unchecked)
- Any criterion that wasn't falsifiable? (fix in next spec)
## Phase 4 — Write retro
Copy `references/retro-template.md` to:
`04-projects/harness/retro/YYYY-MM-DD-<slug>.md`
Fill all sections. Action items get IDs (`AI-01`…).
## Phase 5 — Feed forward
1. **Harvest**: append action items + lessons to today's harvest staging
2. **Backlog**: add `AI-n` rows to `04-projects/harness/BACKLOG.md` if harness work
3. **STATUS.md**: if an ultragoal phase, advance the phase state + log open `AC-n`
4. **Spec checkpoint log**: update spec `## Checkpoint log` CP-7 row
5. Record: `bash .claude/lib/checkpoint.sh record <run-dir> CP-7 PASS "retro: <path>"`
## Output to the user
TL;DR: outcome, top lesson, top action item, retro path.
