uah

uah is a fully featured coding agent harness for the terminal, written in Go. It runs the agent loop in process on uah-core, executes the model’s tool calls in the operating system’s sandbox behind command rules and approvals, and keeps sessions on disk to resume, search, and rewind. It runs on a ChatGPT subscription through the Codex login, or on an API key (providers and sign-in).

brew install viktordanov/tap/uah
codex login    # once, for the ChatGPT subscription
uah            # in a repository

uah runs on macOS and Linux, on arm64 and x86_64; there is no Windows build. It has a TUI, and uah exec and uah review for scripts and CI.

Contents:

1. Features
2. Where to start
3. Get started, with the keys
4. Providers and sign-in
5. Coming from Codex or Claude Code
6. Context preparation
7. Configuration
8. Development, with the code map
9. License and acknowledgements…