An open source agent microharness featuring persistent agency and recursive LLMs. Of bash, by bash, for bash; it's shells all the way down.
Headlong is a Bash-based agent microharness for running language-model agents in persistent, self-directed loops. People use it to create agents that maintain ongoing interests and projects, interact through shell commands, and share one stream of conversations across a team and chat services.
2 files for Codex, OpenCode and Claude Code: headlong AGENTS.md, headlong CLAUDE.md — 1,521 tokens loaded in every session.
AGENTS.md C 1,516 tok CLAUDE.md A 5 tok These files are laude-institute/headlong's own configuration — they tell Codex, OpenCode and Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.