One ruleset. Every AI coding tool.
Describe your project once. Get AGENTS.md, CLAUDE.md, Cursor rules, Copilot and Windsurf files that agree with each other, with path-specific rules so each assistant only loads what it needs.
Tailor it to your repo with ClaudePro, 1 free run
Paste your manifest files and file tree, and tell Claude what you want in Project notes. Claude fills in the steps below with your real commands, stack, folders and path-specific rules. You can review and change everything before downloading. Don't paste .env files or keys.
Get a tree with tree -L 3 -I 'node_modules|vendor|.git', or on Windows tree /A.
Your conventions, what keeps going wrong, and anything the assistant must never touch. This is what makes the rules yours; Claude turns every point into a rule.
Log in to use the free tailored run that comes with every account.
Which tool reads which file
| Tool | Always-on rules | Path-specific rules |
|---|---|---|
| Codex, Jules, Copilot agent and 20+ others | AGENTS.md | A section inside AGENTS.md |
| Claude Code | CLAUDE.md (imports AGENTS.md) | Read from AGENTS.md |
| Cursor | AGENTS.md | .cursor/rules/*.mdc with globs |
| GitHub Copilot | .github/copilot-instructions.md | .github/instructions/*.instructions.md |
| Windsurf | .windsurf/rules/project.md | .windsurf/rules/*.md with glob trigger |
| Gemini CLI | GEMINI.md | A section inside GEMINI.md |
Already have rule files? Paste one into the Rules Doctor for a grade and a list of fixes.