# Docs > System documentation and architecture specs ## Overview This directory contains system documentation and architecture specs. ## Key Files | File | Description | |------|-------------| | `ENGINEERING_GUIDE.md` | Documentation | | `ARCHITECTURE.md` | Documentation | | `STATUS_PROTOCOL.md` | Documentation | | `tier0-guide.md` | Documentation | ## Interfaces / APIs *Document any APIs, CLI commands, or interfaces here.* ## Status ** Not Started** See [STATUS.md](./STATUS.md) for detailed progress tracking. ## Architecture Reference Part of the [Agent Governance System](/opt/agent-governance/docs/ARCHITECTURE.md). Parent: [Project Root](/opt/agent-governance) --- *Last updated: 2026-01-23 23:25:09 UTC*