Ruler: Unified Rules Configuration for All Coding Agents — 2.7K Stars

GitHub·medium signal

intellectronica/ruler provides a single source of truth for AI agent instructions, automatically distributing rules to Claude Code (CLAUDE.md), Codex, Cursor, Aider, and 8+ other coding agents. At 2.7K stars, it solves the fragmentation problem builders face when switching between agents — instead of maintaining separate config files, write once and Ruler syncs to all agent-specific formats.