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What is failure-build?

failure-fail/failure-build — explained in plain English

Analysis updated 2026-05-18

9RustAudience · developerComplexity · 4/5LicenseSetup · easy

In one sentence

A fullscreen terminal AI coding agent forked from xAI's Grok Build, letting you plug in Grok, OpenAI, Anthropic, Ollama, or any custom AI provider.

Mindmap

mindmap
  root((repo))
    What it does
      Terminal AI coding agent
      Edits files and runs shell
      Bring your own provider
    Tech stack
      Rust
      TUI
      MCP
    Use cases
      Run agent in terminal
      Bridge to Claude via MCP
    Audience
      Developers
      CLI power users

Code map

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filefunction / class

What do people build with it?

USE CASE 1

Run an AI coding agent in your terminal that can edit files and run shell commands.

USE CASE 2

Connect the agent to your preferred AI provider, such as OpenAI, Anthropic, or Ollama.

USE CASE 3

Use the agent headlessly in scripts or CI pipelines instead of interactively.

USE CASE 4

Bridge this agent to other AI tools like Claude over the Model Context Protocol.

What is it built with?

RustTUIMCP

How does it compare?

failure-fail/failure-buildarchledger/irlumecodeitlikemiley/waz
Stars999
LanguageRustRustRust
Last pushed2026-07-09
MaintenanceActive
Setup difficultyeasymoderatemoderate
Complexity4/53/54/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 5min

Building from source additionally requires installing DotSlash and protoc.

Apache 2.0 licensed first party code, which can be used freely including commercially as long as you keep notices, vendored third party code keeps its own separate licenses.

So what is it?

Failure Build is a terminal based AI coding assistant, forked from xAI's open source Grok Build project. It runs as a fullscreen, mouse interactive terminal application that can look at your codebase, edit files, run shell commands, search the web, control a real web browser, perform structured git operations like checking status or making commits, and manage tasks that take a long time to finish. What sets this fork apart from the original Grok Build is that it lets you choose which AI provider powers it. Instead of being locked into x.ai's Grok models, you can configure it to use OpenAI, Anthropic, Ollama, or any other service that speaks the same OpenAI style API, switching between them with command line flags, a slash command inside the tool, or a configuration file. It can also act as a bridge so that other AI tools, such as Claude, can connect to it remotely using the Model Context Protocol. Installing it is meant to be simple: a single command line script for Mac and Linux, an npm package, or a PowerShell command for Windows, all of which download a prebuilt program from the project's GitHub releases. Most common operating systems and chip types are covered, though Intel based Macs are not, and Android support works by running inside a separate terminal app called Termux rather than as a standalone app. For people who want to build it themselves from the source code, the project is written in Rust and needs a couple of specific developer tools installed first, along with a Rust toolchain that gets set up automatically. The codebase is organized into many small pieces, called crates, each handling one part of the system, such as the terminal interface, the underlying agent logic, individual tools, and file or version control handling. The project's own code is released under the Apache 2.0 license, though some parts borrowed from other open source projects, including ports of tool implementations from other coding agent tools, keep their original licenses.

Copy-paste prompts

Prompt 1
Help me install the failure CLI on my operating system using the install script.
Prompt 2
Walk me through configuring this agent to use my Anthropic API key instead of Grok.
Prompt 3
Explain how to build this project from source using Rust and DotSlash.
Prompt 4
Show me how to start the MCP bridge so Claude can connect to this agent.

Frequently asked questions

What is failure-build?

A fullscreen terminal AI coding agent forked from xAI's Grok Build, letting you plug in Grok, OpenAI, Anthropic, Ollama, or any custom AI provider.

What language is failure-build written in?

Mainly Rust. The stack also includes Rust, TUI, MCP.

What license does failure-build use?

Apache 2.0 licensed first party code, which can be used freely including commercially as long as you keep notices, vendored third party code keeps its own separate licenses.

How hard is failure-build to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is failure-build for?

Mainly developer.

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