AI Giants Launch Agent Plugins Standard for Interoperable Tools

A new "Agent Plugins" specification (version 1.0.0) has been released to create a write‑once‑run‑anywhere format for AI agents' skills and tools. The standard was drafted by Vercel with input from Amazon, Cursor, Microsoft, OpenAI and Vercel, and is being overseen by the Linux Foundation’s Agentic AI Foundation.

The spec builds on two open formats originally created by Anthropic: the Agent Skills specification and the Model Context Protocol (MCP). It defines a simple directory layout with a mandatory manifest.json, a skills/ folder for reusable instructions, and an mcp/ folder for server connectivity details. It deliberately leaves marketplaces, installation paths, permissions and runtime environments to individual client implementations.

Early adopters such as VS Code, Cursor, GitHub Copilot, ChatGPT and other agent platforms already support the format, allowing developers to package AI capabilities that can be moved across different products without rewriting code.