ruler

Why we included this project

When you're running more than one AI coding assistant, the rules for each one tend to drift apart. Ruler keeps a single .ruler/ directory of Markdown files as the one source of truth and pushes those rules into the config files that GitHub Copilot, Claude Code, Cursor, Aider, and the rest actually read. Nested rule loading means a monorepo can hand different components their own guidance, and MCP server settings get propagated so tooling behaves the same way across agents. It's a practical fit for teams standardizing on one set of agent rules or onboarding a new assistant without re-explaining everything. The CLI also keeps generated agent configs out of version control, a nice touch for keeping the repo clean.