fix: use /audit-config command instead of inline prompt in CI

- Reuses the full command with all constraints and structure
- Claude picks up CLAUDE.md, agents, skills from the checkout
- Same environment as running locally

Author: nicolas-codemate

.github/workflows/sync-audit.yml

@@ -54,46 +54,8 @@ jobs:
         env:
           ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
         run: |
-          claude -p "$(cat <<'PROMPT'
-          You are auditing and improving a Claude Code configuration repository.
-
-          ## Phase 1: Read everything
-
-          1. docs/claude-cookbook-best-practices.md (just synced - reference for latest features)
-          2. settings.json
-          3. CLAUDE.md
-          4. All agents: agents/*.md
-          5. All skills: use Glob for skills/*/SKILL.md, then read each
-          6. All commands: commands/*.md
-
-          ## Phase 2: Apply improvements
-
-          For each actionable finding, APPLY the fix directly (edit files, create missing agents, remove deprecated code, update settings).
-
-          Categories to check:
-          - SETTING: missing permissions, new settings to adopt
-          - AGENT: missing model field, missing tools in frontmatter
-          - SKILL: outdated patterns, missing features
-          - COMMAND: missing allowed-tools, broken references
-          - HOOK: new hook events to leverage
-          - CLAUDE.MD: rules that could be settings/hooks instead
-          - CONFLICT: duplicates, deprecated code to remove
-
-          ## Rules
-
-          - Only fix things that would concretely improve the workflow
-          - Skip anything that works fine as-is
-          - Do NOT delete files without strong justification (prefer deprecation)
-          - Do NOT modify docs/ (already synced)
-          - Keep changes minimal and focused per finding
-
-          ## Phase 3: Summary
-
-          After applying all fixes, output a concise markdown report listing what you changed:
-
-          **[CATEGORY] `file`** — what was changed (impact: high/medium/low)
-          PROMPT
-          )" \
+          cd "$HOME/.claude"
+          claude -p "/audit-config" \
             --model claude-sonnet-4-6 \
             --dangerously-skip-permissions \
             --max-turns 30 \