Grok Build — xAI Coding Agent with Fullscreen TUI

Introduction

Grok Build is xAI's open-source coding agent that runs in a fullscreen terminal UI with mouse support. Built in Rust for speed, it provides an interactive environment for AI-assisted code generation, editing, and project management directly from the terminal.

What Grok Build Does

• Provides a fullscreen TUI for interactive AI-assisted coding sessions
• Supports mouse interaction for selecting files, navigating output, and managing context
• Connects to xAI's Grok models for code generation, review, and refactoring
• Offers an extensible architecture for adding custom tools and workflows
• Handles multi-file edits with diff previews and approval workflows

Architecture Overview

Grok Build is a single Rust binary that renders a rich terminal interface using a custom TUI framework. It communicates with xAI's API for model inference while maintaining a local project context graph. The extensibility layer allows developers to register custom tools that the agent can invoke during coding sessions. All rendering happens locally with minimal latency.

Self-Hosting & Configuration

• Install via the one-line shell script or download a prebuilt binary
• Set your xAI API key via the GROK_API_KEY environment variable
• Configure keybindings and theme in ~/.config/grok-build/config.toml
• Add custom tool definitions in the tools directory for extensibility
• Runs on macOS, Linux, and Windows with full terminal support

Key Features

• Fullscreen TUI with mouse support for a native desktop-like experience
• Built in Rust for sub-millisecond rendering and low memory usage
• Extensible tool system for custom agent capabilities
• Multi-file editing with inline diffs and approval gates
• Session persistence for resuming work across terminal restarts

Comparison with Similar Tools

• Claude Code — Anthropic's CLI agent; Grok Build adds a fullscreen graphical TUI with mouse support
• Codex CLI — OpenAI's terminal agent; Grok Build offers richer visual interaction
• Aider — terminal pair programming; Grok Build provides a GUI-like TUI rather than a conversational CLI
• Cursor — IDE with AI; Grok Build is terminal-native with no editor dependency
• Zed — fast editor with AI built in; Grok Build is a standalone agent, not an editor

FAQ

Q: Does Grok Build work with models other than Grok? A: The primary integration is with xAI's Grok models. Check the repository for any community provider extensions.

Q: Is mouse support required? A: No. Keyboard-only navigation is fully supported, but mouse interaction is available for terminals that support it.

Q: Can I use Grok Build on remote servers via SSH? A: Yes. The TUI renders over any terminal connection, though mouse support depends on your SSH client.

Q: Is it open source? A: Yes. Grok Build is released as open-source software by xAI.

Sources

• https://github.com/xai-org/grok-build