install-agent-config

Give a repo cross-tool agent configuration so OpenAI Codex, GitHub Copilot (VS Code, cloud agent, code review), Cursor and Claude Code all work from the same rules: AGENTS.md as the single source, a CLAUDE.md that imports it, a thin .github/copilot-instructions.md, the path-scoped rule file each tool reads (.github/instructions/*.instructions.md, .claude/rules/*.md, .cursor/rules/*.mdc), and .github/agents/*.agent.md for agents that run on github.com. Facts land in exactly one file — duplication across these is the top cause of contradictory agent behaviour. USE FOR: making a product or platform repo usable by Codex, Copilot and Cursor, not just Claude Code. DO NOT USE FOR: writing the run/test contract itself (/deliver:install-runbook), which AGENTS.md then points at.

License

MIT