Shypd.aiThe largest open index of AI toolsRuler is an open-source coding & development tool that centralizes instructions for AI coding assistants. It allows developers to apply consistent rules across various AI agents like GitHub Copilot and Claude.
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Ruler is an open-source tool designed to centralize and manage instructions for various AI coding assistants. It addresses the complexity of maintaining consistent guidance across multiple agents (e.g., GitHub Copilot, Claude, Cursor) by providing a single source of truth for all AI agent instructions. Ruler automatically distributes these rules to the respective configuration files, supporting nested rule loading for complex project structures. Key features include centralized rule management in a `.ruler/` directory, automatic distribution to supported AI agents, targeted agent configuration, and MCP server propagation. It also offers a simple CLI for initialization and application of configurations, along with a revert command to safely undo changes.
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Open Source
Free
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