Grok Build
Grok Build is xAI's open-source Rust coding-agent harness and terminal UI, designed for interactive, headless, CI, and editor-embedded operation [src-244].
Key facts
- Maker: xAI / SpaceXAI
- Language: Rust
- Interfaces: full-screen TUI, stdio/headless automation, and Agent Client Protocol embedding [src-244].
- Capabilities: codebase inspection, file editing, shell commands, web search, long-running tasks, checkpoints, MCP, skills, plugins, hooks, and sandboxing [src-244].
- Licence: Apache-2.0 for first-party code, with separate notices for third-party components [src-244].
- Governance: source is periodically synchronised from a monorepo; external contributions are not accepted [src-244].
- Repository-upload incident: A July 2026 investigation reported that build 0.2.93 sent tracked repositories and full Git history through a separate storage channel, including unread tracked files; read
.envvalues were also stored without redaction [src-249]. - Response status: Retesting on 13 July found the storage requests disabled through server flags without a client update. xAI had not published a security advisory or confirmed that the change was universal or permanent when the article was published [src-249].
Related
Source references
- [src-244] xAI – "xai-org/grok-build" (2026-07-15)
- [src-249] Swati Khandelwal – "Grok Build Uploaded Entire Git Repositories to xAI Storage, Not Just Files It Read" (2026-07-14)
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