OpenAI harness engineering repo initialization scaffold for agent-first development. Works with Claude Code, Codex, Cursor.
2 files for Codex, OpenCode and Claude Code: harness-init AGENTS.md, harness-init CLAUDE.md — 1,399 tokens loaded in every session.
AGENTS.md A 1,100 tok CLAUDE.md A 299 tok These files are Gizele1/harness-init'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.