Agent Plugins 1.0.0 ships as a vendor-neutral standard
Agent Plugins 1.0.0 was published on August 6, 2026 — an open specification for packaging Agent Skills and MCP servers as portable plugins. A plugin is a directory with a plugin.json manifest and fixed locations for its components, so one package loads across any compatible client. Vercel initiated the proposal; AWS, Anysphere, GitHub, Microsoft, and OpenAI refined it collaboratively. It is supported at launch in ChatGPT, Codex, Cursor, GitHub Copilot, Kiro, and VS Code.
Why it matters
Agent tooling has been fragmented by client: the same skill had to be repackaged for every editor and assistant. A shared format backed by the major vendors at once means you build a plugin only once, and it is governed in the open rather than by any single company.
Who should care
Anyone building or distributing agent skills, MCP servers, or editor extensions
What you can do
The spec and author docs are at agent-plugins.org; existing skills and MCP servers can be repackaged to the plugin.json layout today.