Install in any harness
Casa mounts into the agent harness you already run. The playbook graph, the deterministic engine, and the company brain stay portable plain files in every one of them.
Reference experience
/plugin marketplace add https://github.com/Capx-AI/casa/plugin install capx-casa/casa-startHooks, human gates, and per-department autonomy dials run natively in Claude Code, and Casa's skills register as first-class slash commands.
Supported harnesses
Claude Code is the reference experience. Codex, Grok Build, OpenClaw, and Hermes are documented. Any other CLI can drive Casa with no harness at all via AGENTS.md.
| Harness | Vendor | Open project with | Note |
|---|---|---|---|
| Claude Code | Anthropic | claude | Reference experience; everything first-class |
| Codex | OpenAI | codex | Reads casa/AGENTS.md as its operating contract |
| Grok Build | xAI | grok | Mounts casa/ as the session skill pack |
| OpenClaw | Open source | openclaw | Mounts casa/ as a skill set |
| Hermes | Nous Research | hermes | Loads casa/ as its operating context |
| No harness at all | Any CLI | AGENTS.md | Any CLI can drive Casa with no harness at all |
The three-step shape
git clone https://github.com/Capx-AI/casa<open your project in the harness>/casa-startExplicit degradation
- Gates surface as visible confirmation prompts where hooks are unavailable
- The deterministic engine keeps eligibility and state honest regardless of the model
- Harness-specific sugar varies; the brain and the graph never do
Something else?
The brain is Markdown and JSONL. The engine is a Node CLI. If your agent can run a shell, it can run the company.