2 files for Claude Code, Codex and OpenCode: harness CLAUDE.md, harness AGENTS.md — 1,256 tokens loaded in every session.
CLAUDE.md A 623 tok AGENTS.md A 633 tok These files are ilteoood/harness's own configuration — they tell Claude Code, Codex and OpenCode 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.