Two weeks ago OpenAI, AWS, Microsoft, GitHub, Vercel and Cursor announced Agent Plugins 1.0 — one open format for packaging agent skills and MCP servers, so a plugin built once runs in ChatGPT, Copilot and Cursor alike. Standards are cheap. Implementations aren’t. cursor/plugins is the first big-company homework handed in: Cursor’s full plugin spec plus 28 official plugins, MIT-licensed TypeScript, 449 stars in a single day, 4.1k total.
What’s in the repo
Not toy examples. PR Review Canvas renders pull-request diffs inside the agent, Thermos runs parallel subagents for security audits, and there are production integrations for GitHub, Salesforce, Gmail and Zoom. Every plugin ships its skills, rules and MCP server definitions in the open — the best free reading right now on how a top coding agent wires tools together.
Build your own
The spec plus TypeScript SDK turns third-party Cursor plugins into a real developer surface: package an internal workflow once, load it in Cursor unchanged, and spec-conformant plugins stay portable to other Agent Plugins clients. Typical use case: your team’s deploy checklist as a plugin instead of a wiki page.
Whoever ships the reference implementation ends up steering the standard. Cursor just took that seat.
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