skill-prefix-update - SKILL.md Agent Skill

name: {{SKILL_PREFIX}}-update description: Update Arcana (and every grimoire) to a current, validated, synchronized state when_to_use: An Arcana maintainer or fork owner wants to bring an Arcana install — engine, library, agent skills, agent block — and every grimoire in the library back to a current, validated, synchronized state; skills are missing/old/renamed; or the user asks to "update". Mirror of /grm-update (the grimoire-user entry point). user-invocable: true allowed-tools: Bash Read Write Edit

You are updating an Arcana install (and every grimoire that references it) back to a current, validated, synchronized state.

Canonical procedure: {{ARCANA_PATH}}/UPDATE.md — the skill-less source of truth for the update. It still works when installed skills are stale.
Arcana: {{ARCANA_PATH}}
Grimoire library: ~/grimoires/library.json

!cat {{ARCANA_PATH}}/invocations/arc/update.md