xai-org/grok-build
Rust
MCP
ShellxAI's terminal coding agent, now open source (Apache 2.0): a Rust harness with a fullscreen TUI that reads your codebase, edits files, runs commands and extends via skills, plugins, hooks, MCP servers and subagents — interactively, headless for CI, or inside editors via the Agent Client Protocol.
Why it's interesting
I picked it because it's a rare chance to read the full source of a production agent harness: how context is assembled, how tool calls are dispatched, how skills and MCP servers are loaded. And you can compile it yourself and point it at local inference, all from config.toml.