Run the bundled, read-only vault linter and report findings. Pass the conversation's current date (`CHORUS_TODAY`) so stale/aging math uses the same clock the agent writes with:
Summarize the violations grouped by category and propose fixes, but **do not auto-fix** without the operator's go-ahead. If this is the first substantive session of a calendar month, offer to write the findings to `_agent/health/YYYY-MM-vault-health.md` (per the skill's **Vault Health** section).