evolve-skill

name	evolve-skill
model	opus
description	Benchmark-gated skill evolution — consume bigpowers-benchmark report, propose plan-work change, edit skill via craft-skill, re-run benchmark, record ADR. Use when a skill underperforms on benchmark or stocktake finds systemic gap.

story: e23s03

story: e09s01

story: e09s05

Evolve Skill

HARD GATE — No skill change ships without benchmark score ≥ pre-change baseline. Learning is measured and versioned — never implicit.

Loop

1. Regression gate — Run bash scripts/run-verification-gates.sh to catch mechanical regressions (compliance, sync pipeline, size budget) before spending time on benchmark evals. If golden suite fails, fix regressions first — they are pre-requisites for any capability improvement.

2. Establish baseline — Run run-benchmark <skill> --baseline. If no definition exists at specs/benchmarks/<skill>.yaml, create one following specs/benchmarks/SCHEMA.md first. Save report path in state.yaml. If specs/benchmarks/reports/BASELINE-<skill>.yaml already exists, skip this step.

3. Identify gap — Read the baseline report (specs/benchmarks/reports/BASELINE-<skill>.yaml). Find scenarios with result: FAIL or low pass_at_k. This is the measurable gap.

4. plan-work — Write a minimal change proposal targeting the failing scenarios. Include verify commands.

5. Edit via craft-skill / direct SKILL.md edit; run bash scripts/sync-skills.sh.

6. Re-run benchmark — run-benchmark <skill>. Compare new pass_at_k against baseline.

   • IMPROVED or STABLE → advance to step 6.
   • REGRESSION (new pass_at_k < baseline) → revert the change and loop back to step 3.

7. Record decision — Write specs/adr/NNNN-evolve-<skill>.md with before/after pass_at_k scores. Update session-state.

Verify

→ verify: grep -c 'run-benchmark\|pass_at_k\|BASELINE-' skills/evolve-skill/SKILL.md | awk '{if($1>=2) print "OK"; else print "FAIL"}'

See REFERENCE.md for ADR template.

---

Evolve Skill — ADR snippet

## ADR-XXXX: Evolve <skill-name>

**Status:** Accepted
**Benchmark:** before X% / after Y%
**Change:** one-sentence summary
**Evidence:** path/to/benchmark-report.md

Benchmark repo: bigpowers-benchmark — resolve the local clone on this machine (e.g. gh repo clone danielvm-git/bigpowers-benchmark if absent); never assume a hard-coded absolute path.