Brief, mostly signal

MCP Events draft would let servers start agent runs

The draft SEP-3415 lets MCP servers push events. Only webhook mode ships today, in ChatGPT and Vercel, and Claude Code has no events support yet.

Read the source at timeline.differentiated.io Discussion

What the research found

MCP Events (draft SEP-3415) lets MCP servers push events so agents can start runs without a user prompt; only webhook mode is shipped by ChatGPT and Vercel, while Claude Code, Cursor, VS Code and official SDKs have no events support yet.

Claims and how well the evidence supports them

MCP Events is a draft extension SEP-3415 from the Triggers and Events Working Group 97%
ChatGPT and Vercel AI SDK support only webhook delivery mode 98%
Claude Code, Cursor and VS Code support no events yet 99%
Official Python and TypeScript SDKs have no events support 98%

Evidence

timeline.differentiated.io https://timeline.differentiated.io/guides/mcp-events
news.ycombinator.com https://news.ycombinator.com/item?id=50144825

Actionability rated low.