skill-concierge blocklist

The disable tier: skills the user ordered OFF. A skill on the blocklist is never offered by the enforcer, never returned by search_skills, never served by get_skill, and its Skill-tool invocation is denied by the PreToolUse guard (hooks/scripts/skill_guard.py). This works for ANY skill regardless of origin — personal skills, plugin skills, external catalog entries, and command-files surfaced as skills (~/.claude/commands/*.md), which the index deliberately excludes (ADR-0001) and which therefore only the invocation guard can catch.

The list lives at ~/.claude/skill-concierge/blocklist.json (canonical durable home, preserved across /plugin update) and is read LIVE at query time — an edit applies immediately, with no reindex and no restart.

Name semantics

• A BARE entry (resume-session) blocks every qualified twin — plugin:name, alias:name, any origin. "Disable X" means X, everywhere.
• A QUALIFIED entry (skill-concierge:keep-on) blocks only that exact form — for when one origin must die but a same-named sibling must live.

Steps

1. View the disabled set:

   python3 "$CLAUDE_PLUGIN_ROOT/scripts/blocklist.py" list
   

2. Disable skill(s) — reconciles the settings overrides immediately (a disabled skill is force-demoted from keep-on to name-only; keep-on.json itself is left untouched, so unblocking restores the allowlist):

   python3 "$CLAUDE_PLUGIN_ROOT/scripts/blocklist.py" add <skill-name> [<skill-name> ...]
   

3. Re-enable skill(s):

   python3 "$CLAUDE_PLUGIN_ROOT/scripts/blocklist.py" remove <skill-name> [<skill-name> ...]
   

Layer map (what "disabled" means, mechanically)

Layer	Effect
Enforcer (hooks/scripts/enforcer.py)	never offered, never hinted (CHAIN-HINT/ROUTE), never a deterministic route, no foreign-annex row
Engine (vendor/skill-search/.../server.py)	filtered from search_skills results; get_skill refuses to serve the body
Guard (hooks/scripts/skill_guard.py)	PreToolUse(Skill) deny — the deterministic layer that also catches command-files
Overrides (scripts/apply-overrides.py)	a blocked keep-on skill is forced name-only

Escape hatch

SKILL_BLOCKLIST=0 turns the whole feature off everywhere (guard passes, enforcer and engine stop filtering, overrides stop stripping) — the one-var revert. SKILL_CONCIERGE_BLOCKLIST points all layers at an exact file (test seam).