# hax

A minimalist, terminal-native coding agent written in C, distributed as a single small binary, built for developers who run local models and want to audit exactly what their tools do.

hax is a coding agent written in C as a single native binary with a small dependency set, aimed at developers who live in the terminal, run local models, audit their tools, or package software for a Linux distribution. It starts instantly, leaves more memory available for local models, and only redraws the current streaming line or input area so a terminal's native scrollback stays intact.

It auto-discovers a running llama-server instance for local models with no extra configuration, and also supports OpenAI, Anthropic, Codex through a ChatGPT subscription, OpenRouter, OpenCode Zen or Go, and custom endpoints. A transcript view shows exactly what was sent to and received from a model, and the project deliberately omits MCP marketplaces, a plugin runtime, IDE panels and per-command permission prompts, leaving those to other agents. It runs on Linux, macOS, FreeBSD, OpenBSD, and under WSL on Windows, installable through Homebrew, the AUR, a static binary, or building from source.

Website: https://usehax.dev