Governance overview

Castellan ships two governance surfaces:

1. Manifest drift-check — castellan drift-check enforces required CI checks, style files, and deprecation notices. See policies.
2. Runtime hooks — castellan.toml session hooks and multiplexer agent lifecycle reporting. See hooks.

Neither surface uses a router LLM. Governance is deterministic policy + operator-configured shell hooks.

Quick commands

castellan drift-check          # manifest guardrails
castellan doctor --json        # staged runtime diagnostics

Related

• CLI reference
• Cursor setup