SpaceXAI has released the source code for Grok Build, its coding agent and terminal user interface (TUI), on GitHub. This move aims to provide a robust and reliable harness by allowing users to inspect exactly how context assembly and tool-call dispatch work.
- The open-sourced code serves as the definitive reference for loading and invoking skills, plugins, hooks, MCP servers, and subagents.
- Grok Build now supports a fully local-first architecture, enabling users to compile it themselves and point it at their own local inference models.
- Configuration is managed via a config.toml file, allowing users to drive the agent's behavior locally.
By making the harness open source, SpaceXAI intends to make the system easier to explore and extend for developers working with various integration components.