> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.jambonz.org/agent-studio/custom-harness/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.jambonz.org/_mcp/server.

# Custom harness

## Docs

- [Custom harness](https://docs.jambonz.org/agent-studio/custom-harness/overview.md): Your code decides what the agent says. jambonz handles the call, the listening and the speaking.
- [Custom harness quickstart](https://docs.jambonz.org/agent-studio/custom-harness/quickstart.md): From an empty folder to a test call with your own harness, in about 15 minutes.
- [Harness protocol reference](https://docs.jambonz.org/agent-studio/custom-harness/protocol.md): Every message between jambonz and a custom harness (protocol version 1).
- [@jambonz/sdk/harness reference](https://docs.jambonz.org/agent-studio/custom-harness/sdk.md): Build a custom harness in TypeScript or JavaScript without handling the protocol yourself.