- P3-T1: --check-instructions flag + check_instructions() prints a table of all
agents' instructionsFilePath with status (✅ OK / ❌ MISSING / ⚠ NOT SET),
size, mtime, and ⚠ DRIFT when file has changed since last sync
- P3-T2: --apply now runs a pre-flight check on master agents and aborts if any
instruction file is missing, before touching the DB or calling any API
- P3-T3: get_claude_md_mtime() helper; --apply stamps claude_md_mtime and
claude_md_last_synced into each mirror agent's metadata via the PATCH call
- P3-T4: alias check-agents added to ~/.bashrc
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>