One AGENTS.md for Every Coding Agent: Auto-Derive CLAUDE.md, GEMINI.md & Copilot Instructions

@mongez/agent-kit turns one AGENTS.md source into the instruction files each AI coding tool expects, such as CLAUDE.md, Gemini, Copilot, and Aider files.

It also syncs reusable skills from installed packages into the right per-agent folders, including nested skill structures Claude Code cannot read directly.

The goal is to avoid maintaining duplicate rule sets and reduce instruction drift across tools like Claude Code, GitHub Copilot, Gemini CLI, Cursor, and Codex.

By generating each tool’s expected files from a single project source of truth, it makes project conventions easier to share and keep consistent.