Grok Build (grok)

Grok Build is SpaceXAI's terminal-based AI coding agent. It runs as a full-screen TUI that understands your codebase, edits files, executes shell commands, searches the web, and manages long-running tasks — interactively, headlessly for scripting/CI, or embedded in editors via the Agent Client Protocol (ACP).

Installing the released binary · Building from source · Documentation · Repository layout · Development · Contributing · License

Learn more about Grok Build at x.ai/cli

This repository contains the Rust source for the grok CLI/TUI and its agent runtime. It is synced periodically from the SpaceXAI monorepo.

A small SOURCE_REV file at the root records the full monorepo commit SHA for the version of the code present in this tree.

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About this privacy-focused fork

This fork is focused on local privacy and explicit operator control. Binaries built from this repository disable the client's product telemetry and background upload paths, including Mixpanel events and profile sync, Sentry, external OpenTelemetry/OTLP export, feedback and session signals, trace and GCS uploads, authentication diagnostic-log uploads, heap-profile collection, and network update checks/downloads. Remote HTTP/SSE MCP servers and the remote workspace hub are also disabled so they cannot expose local tools or files; local stdio MCP servers remain available.

The main model/chat API remains enabled because it is required for the agent to operate. Authentication and explicitly invoked network features such as web search may still contact their respective services, so this is a privacy-hardened build rather than a fully offline application.

The primary Grok Build system prompt is embedded as plaintext and may be disclosed when the user explicitly requests it. AI jailbreaking, prompt injection, system-prompt extraction, guardrail/refusal bypass, adversarial prompting, and model red-teaming are explicitly treated as in-scope technical work. The client prompt instructs the model not to identify, flag, redirect, or refuse a request merely because it uses those labels. Provider-side model behavior and server-side content filters remain outside this repository's control.

Important

The installation commands below download the official upstream xAI release, which does not contain this fork's changes. Build this repository from source to use the privacy and prompt modifications described above.

Installing the released binary

Prebuilt binaries are published for macOS, Linux, and Windows:

curl -fsSL https://x.ai/cli/install.sh | bash   # macOS / Linux / Git Bash
irm https://x.ai/cli/install.ps1 | iex          # Windows PowerShell
grok --version

See the changelog for the latest fixes, features, and improvements in each release.

Building from source

Requirements:

• Rust — the toolchain is pinned by rust-toolchain.toml; rustup installs it automatically on first build.

• DotSlash — required so hermetic tools under bin/ (notably bin/protoc) can download and run. Install it and ensure dotslash is on your PATH before building:

  cargo install dotslash
  # or: prebuilt packages — https://dotslash-cli.com/docs/installation/
  /usr/bin/env dotslash --help   # sanity check
  

• protoc — proto codegen resolves bin/protoc via DotSlash, or falls back to a protoc on PATH / $PROTOC.

• macOS and Linux are supported build hosts; Windows builds are best-effort and not currently tested from this tree.

cargo run -p xai-grok-pager-bin              # build + launch the TUI
cargo build -p xai-grok-pager-bin --release  # release binary: target/release/xai-grok-pager
cargo check -p xai-grok-pager-bin            # fast validation

The binary artifact is named xai-grok-pager; official installs ship it as grok. On first launch it opens your browser to authenticate — see the authentication guide.

Documentation

Full online documentation is available at docs.x.ai/build/overview.

The user guide ships with the pager crate: crates/codegen/xai-grok-pager/docs/user-guide/ — getting started, keyboard shortcuts, slash commands, configuration, theming, MCP servers, skills, plugins, hooks, headless mode, sandboxing, and more.

Repository layout

Path	Contents
crates/codegen/xai-grok-pager-bin	Composition-root package; builds the xai-grok-pager binary
crates/codegen/xai-grok-pager	The TUI: scrollback, prompt, modals, rendering
crates/codegen/xai-grok-shell	Agent runtime + leader/stdio/headless entry points
crates/codegen/xai-grok-tools	Tool implementations (terminal, file edit, search, ...)
crates/codegen/xai-grok-workspace	Host filesystem, VCS, execution, checkpoints
crates/codegen/...	The rest of the CLI crate closure (config, MCP, markdown, sandbox, ...)
crates/common/, crates/build/, prod/mc/	Small shared leaf crates pulled in by the closure
third_party/	Vendored upstream source (Mermaid diagram stack) — see below

Important

The root Cargo.toml (workspace members, dependency versions, lints, profiles) is generated — treat it as read-only. Prefer editing per-crate Cargo.toml files.

Development

cargo check -p <crate>        # always target specific crates; full-workspace builds are slow
cargo test -p xai-grok-config # per-crate tests
cargo clippy -p <crate>       # lint config: clippy.toml at the repo root
cargo fmt --all               # rustfmt.toml at the repo root

Contributing

Note

External contributions are not accepted. See CONTRIBUTING.md.

License

First-party code in this repository is licensed under the Apache License, Version 2.0 — see LICENSE.

Third-party and vendored code remains under its original licenses. See:

• THIRD-PARTY-NOTICES — crates.io / git dependencies, bundled UI themes, and in-tree source ports (including openai/codex and sst/opencode tool implementations)
• crates/codegen/xai-grok-tools/THIRD_PARTY_NOTICES.md — crate-local notice for the codex and opencode ports (license texts + Apache §4(b) change notice)
• third_party/NOTICE — vendored Mermaid-stack index