brain-scanlisted
Install: claude install-skill getedgehq/skills
# Brain Scan
Find the recurring tasks this person's agents actually perform, then measure whether relevant
Skills improve the real outputs when explicitly loaded.
## Choose a mode
- **Fast (default):** identify the highest-signal recurring task from the session history and run
3 valid controlled pairs. Use for a quick directional answer and first Skill recommendation.
- **Deep:** cover at least 3 recurring task families and complete at least 10 valid controlled
pairs in total. Use when the user asks for a comprehensive scan, a broader capability map, or
stronger evidence before changing the agent setup.
Ask which mode only when the user has not indicated depth and the extra Deep runtime or model
usage would be material. Otherwise default to Fast. Invalid, contaminated, or timed-out pairs do
not count toward either minimum.
## Default assessment
Use exactly two arms:
- `base`: the selected Skill is absent.
- `loaded`: the same model, task, fixtures, tools, limits, and ordinary context, with the
selected Skill's frozen `SKILL.md` content supplied before work begins.
Do not add a discovery arm. Do not replace this comparison with current setup versus an
incremental prompt patch. Never promise uplift.
## Run
1. Confirm which local session roots the user authorizes. Raw logs stay local.
2. Extract correction episodes without a model call:
```bash
python3 <skill-dir>/vendor/skill-miner/scripts/corrections.py \
--sources claude,opencode,codex --no-llm --out <pri