SpaceXAI put its coding agent in a fullscreen Rust TUI

What it does

Grok Build is SpaceXAI’s Rust-based terminal UI for an AI coding agent. It wraps an agent runtime that can read your codebase, edit files, execute shell commands, search the web, and manage long-running tasks. The same binary works interactively, headlessly for automation, or embedded in editors via the Agent Client Protocol.

The interesting bit

The repository is a periodically synced slice of the SpaceXAI monorepo, organized as a multi-crate Rust workspace with strict separation between the pager UI, shell runtime, tool implementations, and workspace host. It also ports tool implementations from openai/codex and sst/opencode directly into its tree, alongside a vendored Mermaid diagram stack.

Key highlights

• Fullscreen TUI with scrollback, prompt, and modal rendering, plus mouse support.
• Headless mode and ACP support for editor embedding and CI scripting.
• Sandboxing, MCP servers, skills, plugins, and hooks (per shipped user guide).
• Multi-crate architecture separating pager UI, shell runtime, tools, and workspace host.
• Ports of openai/codex and sst/opencode tool implementations included in-tree.

Caveats

• External contributions are explicitly not accepted; it is a periodically synced monorepo slice.
• Windows builds are best-effort and untested from this repository tree.
• First launch requires browser-based authentication.

Verdict

Worth evaluating if you want a heavyweight, extensible terminal harness for an AI coding agent and can tolerate closed-source upstream development. Skip it if you need guaranteed Windows build support or were hoping to send a pull request.