OpenAI Just Announced The New Plugin Standard for AI Agents

The skills you have already written don't have to stay locked to one coding agent. A new open standard called Agent Plugins lets you bundle Agent Skills and MCP servers into a single folder that works across Codex, ChatGPT, Cursor, GitHub Copilot, Kiro and VS Code, with Google joining more recently.

A plugin under this standard is just a directory. Your skills folder, exactly as you already have it, a plugin.json manifest, and an mcp.json where your MCP servers live. That is the portable core, and it is a much simpler file structure than you would expect from a spec with this many big names on it.