Retrospective

Analyze evaluation patterns across completed plans, identify recurring failures, and auto-apply checklist evolution — the downstream consumer of executing-plans Phase 4 "Checklist Evolution Candidates". The user reviews post-commit via git show docs/retros/checklists/.

Recommended: run wrapped in /goal

Launch it under Claude Code's built-in /goal (v2.1.139+) — a retrospective can span multiple turns:

/goal "Claude has narrated a successful checklist-evolution commit (with commit hash) and stated the retrospective is complete" /superpowers:retrospective <plan-paths>

/goal is a user-typed outer wrapper (a skill cannot enable it for itself mid-run), and its evaluator judges only what Claude narrates in the transcript — phrase the condition against narrated output (the commit-hash line, an explicit completion statement), never filesystem state. Full semantics and condition phrasing: ../../skills/references/goal-wrapper.md.

Pre-Check (run first, in order)

A. INSUFFICIENT-POST-PLAN advisory (informational)

Read the most recent plan_completed event from docs/retros/plans-completed.jsonl. If hours_since_completion < 24h AND bash "${CLAUDE_PLUGIN_ROOT}/lib/post-plan-diff.sh" summary <completion_commit> <files...> returns total == 0, output the INSUFFICIENT-POST-PLAN reminder verbatim (see ./references/post-plan-diff.md §Pre-Check A) and proceed to Phase 0 — do NOT pause. Skip silently when completion_commit is missing.

B. Recall persistent memory (calibration priors)

CRITICAL — do this before Phase 0, do NOT skip it as setup. Persistent memory holds the human judgments the evolution-log cannot capture. Recall is a SECONDARY calibration signal — docs/retros/evolution-log.jsonl (Phase 1 step 5) stays authoritative; when they disagree, the log wins.

The MEMORY.md index hooks are ALREADY in your context (injected at session start) — read nothing from disk. Scan them now and select the ones bearing on this run: prior evolution/rejection decisions and debt trackers, harness-design principles, and working-style feedback. Carry them forward as priors into Phase 1 step 5 (calibration history), Phase 3 (suppression of weakly-justified ADDs), and Phase 4 (self-reject a proposal that contradicts a recalled prior, citing the memory entry). If no calibration-relevant hook exists, log Pre-Check B: no calibration-relevant memory and proceed. Never resolve a memory path, read a topic file, block, or ask — the index hooks carry the signal on their own.

When a recalled hook cited as evidence for an approved Phase 3 proposal proves project-specific and durable, the Phase 4 step 3.5 draft records Promoted from private assistant memory hook: <hook-name>, <date> in its ## Why section — cross-project harness-design stances are NOT promoted, and the private hook is never deleted or modified.

Phase 0: Bootstrap (run only when no checklists exist)

Before Phase 1, check whether docs/retros/checklists/ contains {mode}-v1.md for each mode (design / plan / code). Phase 0 runs per-mode independently — seed only the modes missing a v{N} file; if all three are present, log Phase 0: all checklists present, skipping seed and proceed. Full procedure (Path A vs. Path B Full History Bootstrap, exit codes, --force reset): ./references/bootstrap.md.

Phase 1: Data Collection

1. Resolve inputs: Parse $ARGUMENTS for plan paths. If --across-all, scan docs/plans/ for all *-plan/ directories with evaluation reports. If no argument is given, read docs/retros/plans-completed.jsonl and auto-scope to plans completed after the most recent retrospective_run event in docs/retros/evolution-log.jsonl. Complement the log via the docs index: bash "${CLAUDE_PLUGIN_ROOT}/lib/docs-index.sh" list --kind plan --status implemented scopes shipped plans; bash "${CLAUDE_PLUGIN_ROOT}/lib/docs-index.sh" list --status expired surfaces prior expirations as calibration input (read an expired plan's retro report before re-proposing anything that touches it). Also consult memory: bash "${CLAUDE_PLUGIN_ROOT}/lib/docs-index.sh" list --kind memory --status active; fold matches into Phase 2 analysis as calibration input.

2. Resolve evals: For each plan path, read evaluation reports (evaluation-round-*.md, evaluation-design-round-*.md, evaluation-plan-round-*.md) from the plan directory, or from a sibling *-evals/ directory when one exists.

3. Read checklists: Scan docs/retros/checklists/ for each mode's latest {mode}-v{N}.md (highest N).

4. Read reports: Read each plan's evaluation reports; extract per-item results (Item ID, Result, Evidence) and rework items.

5. Read evolution history (calibration input): Read docs/retros/evolution-log.jsonl if present; build a history table keyed by item_id (most recent event, timestamp, rationale). This feeds Phase 3 — do NOT re-propose an ADD for an item REMOVEd in the most recent retrospective unless the new evidence is materially different; cite the historical entry in any such proposal.

6. Read post-plan diff: For each plan with a completion_commit field, run bash "${CLAUDE_PLUGIN_ROOT}/lib/post-plan-diff.sh" list <completion_commit> <completion_modified_files...> and pass the classified commit list to Phase 5a (classification rules and skip conditions: ./references/post-plan-diff.md).

7. Minimum data check: With only 1 plan, warn that ADD proposals require 2+ plans (except the Phase 5a post-plan-diff 1-plan override); REMOVE needs 3+ reports with zero failures.

Phase 2: Pattern Analysis

Aggregate data across all plans (detailed logic: ./references/analysis-patterns.md).

1. Failure frequency: Count distinct plans where each checklist item FAILed. Rank by frequency descending.
2. Plateau tasks: Identify tasks that were REWORK across 2+ consecutive evaluation rounds in any plan; extract the root cause from rework items.
3. Never-failing items: Items with 0 FAILs across 10+ evaluation reports are REMOVE candidates.
4. Variety gaps: From executing-plans completion summaries, find batches where all items PASS but 2+ rework rounds occurred -- the checklist missed the failure mode.

Output a structured analysis report with tables for each category.

Phase 3: Evolution Proposals

Generate proposals from analysis results (format details: ./references/evolution-protocol.md).

Rate limit (EVO-6): Max 3 proposals per mode per run; defer excess with evidence.

Counter monotonic growth (REMOVE is load-bearing): each run, actively scan for never-firing items and propose REMOVE — a checklist that only grows is a calibration failure, not success. The 3+ reports/item threshold is deliberately reachable (rationale and history: ./references/evolution-protocol.md §History).

Memory-file consolidation (reuses the MODIFY threshold, 2+ instances): when Phase 2 surfaces 2+ active kind=memory files covering the same concept, propose a MODIFY merging them into one surviving file. When applied in Phase 4, fold the absorbed file's content into the survivor, then run bash "${CLAUDE_PLUGIN_ROOT}/lib/docs-index.sh" set-status <absorbed-path> "expired:superseded-by-consolidation:<survivor-path>" — the collapse rule then drops the row.

Each proposal includes: type, target checklist, item ID, description, rationale with plan evidence.

Phase 4: Auto-Apply Proposals

Apply every Phase 3 proposal (regression breaks first, then by frequency). No per-proposal approval gate — EVO-6 + thresholds + post-commit git show docs/retros/checklists/ are the quality surface. proposals_rejected is reserved for self-rejection at apply time: a proposal duplicating a recent removal (Phase 1 step 5) or contradicting a recalled memory prior (Pre-Check B) without materially new evidence is logged under "Self-Rejected Proposals" with the cited entry, increments proposals_rejected, and skips the checklist row. All others advance.

Apply steps:

1. Pre-edit snapshot: Write current checklist content to the retrospective report under "Pre-Edit Snapshot" with rollback instructions
2. Create new version: Write {mode}-v{N+1}.md with all applied changes. Version increments once per run (not per proposal). Original version preserved unchanged.
3. Log evolution — CRITICAL: a proposal is NOT "applied" until its evolution-log row exists. Immediately after writing the new version file, append one row per applied proposal to docs/retros/evolution-log.jsonl via lib/jsonl-emit.sh with <channel>=evolution-log and event item_added | item_removed | item_modified | item_promoted — emit per-proposal, do NOT defer to the end of the run (canonical invocation: ./references/evolution-protocol.md §"Canonical Emit Invocations"). These rows feed Phase 1 step 5's re-proposal guard — a dropped item_removed row silently re-adds the just-removed item next run. The Stop hook backfill is all-or-nothing and carries no rationale; the in-skill emit is authoritative and must run. 3.5. Draft memory files for applied ADD/MODIFY proposals: for each ADD or MODIFY applied this run (post-self-rejection), draft one docs/memory/<category>_<slug>.md (convention for a structural rule, pitfall for a recurring failure mode, decision for a rejected-vs-chosen call), using the proposal's description and rationale as Fact/Why content and source: citing this run's retro report path. REMOVE and PROMOTE proposals, even if applied, do NOT trigger this step.
4. Verify the log — CRITICAL self-check, do NOT skip: before leaving Phase 4, count evolution-log rows whose checklist_version equals this run's version(s) and confirm the count equals proposals_approved; emit any missing rows now. This guards against a partial drop the hook's all-or-nothing backfill cannot catch.

Phase 5: Harness Health (advisory)

Surface components that may no longer earn their cost and turn post-plan corrections into checklist proposals. Everything here is advisory — it feeds Phase 3 proposals and the Phase 6 report, reviewed via the post-commit diff. Phase 5 never disables a component or mutates the harness (the automated disable-test loop was removed in v2.9.0; history: ./references/evolution-protocol.md §History).

5a. Post-Plan Correction Mining (highest-value signal)

This is the load-bearing input (provenance: ./references/evolution-protocol.md §History). For each plan's post-plan-diff (Phase 1 step 6): when feedback-classified commits (refactor/fix/style/perf on plan-modified files) cluster around a pattern no batch evaluator flagged, that is a real evaluator coverage gap. Render the corrections table (./references/post-plan-diff.md §Phase 5a) and graduate each missed pattern to a Phase 3 ADD proposal at 1-plan evidence. This catches what grep-based checks cannot: consistency, API-contract, and coverage gaps.

5b. Usage-Driven Recommendations (report notes only)

• All tasks passing first round (no REWORK) across 3+ plans → note that per-batch evaluation may be reducible (a future Phase 3 MODIFY/REMOVE candidate, not an automatic change).
• A mode's checklist all-regression and all-passing across 3+ plans → recommend a spot-check cadence.

Report notes only — never disable a component here; never-failing items belong to Phase 3 REMOVE proposals (do not duplicate).

Phase 6: Output

Write the retrospective report to docs/retros/retro-{date}-{topic}.md:

1. Analysis tables (failure frequency, plateaus, never-failing, variety gaps)
2. Proposals with approval status
3. Checklist versions updated (if any)
4. Harness Health notes (5a corrections mined into ADD proposals; 5b recommendations)
5. Summary: N proposals approved, M rejected, checklists updated to version X
6. Upsert retro report into the docs index: bash "${CLAUDE_PLUGIN_ROOT}/lib/docs-index.sh" upsert retro <retro-report-path> --status active --summary "<one-line>" (same string as the report's summary line).
7. CRITICAL — invalidate-after (do-not-defer, retrospective-only). For each invalidates: <path> line in the just-written retro report, run bash "${CLAUDE_PLUGIN_ROOT}/lib/docs-index.sh" set-status <path> "expired:retro-<date>:<reason>". If set-status returns exit 3 (path not tracked), log a warning and skip — do NOT upsert speculative entries just to mark them expired. CRITICAL boundary — a checklist-item REMOVE does NOT invalidate a design: a Phase 3 REMOVE evolves the checklist, not the design folder; only an explicit invalidates: <path> line triggers set-status expired: — separate channels. Expiry is retrospective-only — the other writer skills may NOT set expired:; only this step does.
8. Upsert drafted memory files: for each memory file drafted in Phase 4 step 3.5, run bash "${CLAUDE_PLUGIN_ROOT}/lib/docs-index.sh" upsert memory docs/memory/<path> --status active --summary "<one-line>" --category <category>.

Close the calibration loop — CRITICAL: do this before you stop, even when zero proposals were approved. Append one retrospective_run row to docs/retros/evolution-log.jsonl via the canonical emit pattern (./references/evolution-protocol.md §"Canonical Emit Invocations"), recording proposals_approved and proposals_rejected. This row is the closure marker the next run's auto-scope reads — skip it and the next retrospective silently re-analyzes these plans. The Stop hook backfills a minimal watermark if you drop this, but only your emit carries proposals_approved / proposals_rejected / plans_analyzed — write the rich row here.

References

• ./references/bootstrap.md - Phase 0 procedure: Path A/B, exit codes, --force reset
• ./references/analysis-patterns.md - Failure frequency, plateau detection, never-failing analysis
• ./references/evolution-protocol.md - Proposal types, thresholds, log schema, canonical emits, history
• ../../skills/references/goal-wrapper.md - /goal wrapper semantics and condition phrasing (shared)
• ${CLAUDE_PLUGIN_ROOT}/lib/post-plan-diff.sh - classifies post-plan commits as feedback (user correcting superpowers output) or evolution (user adding new requirements); feeds Pre-Check A, Phase 1 step 6, and Phase 5a