https://github.com/luml-ai/AGENTS.lock

AGENTS.lock keeps AI agent skills, instructions, and MCP servers in sync across Claude, Codex, Gemini, and Copilot CLIs using a single TOML lockfile as the source of truth.

Instead of manually copying skills and configs between tools, you declare everything once in AGENTS.lock and run `al sync`.

GitHub: https://github.com/luml-ai/AGENTS.lock