- type
- Terminal CLI agent
- interface
- Terminal
- openSource
- Yes (MIT)
- lineage
- Minimalist terminal-native coding agent written entirely in C; single native binary with a small dependency set, starts instantly, uses only a few MB of memory; own tool-use/agent loop (Read/Write/Bash-style tools, streaming Markdown output, session resumption, transcript view) rather than shelling out to Claude Code/Codex; supports OpenAI, Anthropic, Codex-via-ChatGPT-subscription, OpenRouter, llama.cpp and Ollama as model providers
- note
- Distinct from other tracked minimal-core agents (Pi is TypeScript/npm; Zot is Go) by being a from-scratch C implementation
- iconUrl
- /research/harness-icons/hax.jpg
