I built LNAI because I got tired of maintaining the same rules across Claude Code, Cursor, and Codex. The problem is simple: every AI coding tool has its own config format. Claude wants `.claude/`, Cursor wants `.cursor/`, Codex wants `.codex/`. When you update a skill/rule, you update it everywhere, or more likely, you forget one and your tools drift out of sync. LNAI lets you define everything once in a `.ai/` directory: .ai/ ├── AGENTS.md ├── rules/ ├── skills/ └── settings.json # Permissions & MCP servers Then `lnai sync` exports to native formats for each tool. It's not just copying files, it actually transforms configs appropriately. Cursor rules get converted to `.mdc` with the right frontmatter. Gemini rules get grouped by directory (because that's how Gemini reads them). Permissions like `Bash(git:*)` become `Shell(git)` for Cursor. The sync uses symlinks where possible, so a change to `AGENTS.md` propagates instantly to all tools without running sync again. Three commands: npm install -g lnai lnai init # Create .ai/ configuration lnai validate # Check for errors before syncing lnai sync # Export to native tool configs It's MIT licensed, works with Claude Code, Cursor, Copilot, Gemini CLI, OpenCode, Windsurf, and Codex. Would love feedback from anyone juggling multiple AI tools.

LNAI

One config for all your AI coding tools

One config for all your AI coding tools