MCP 新規格拿掉連線交握,變成一問一答,Simon Willison 回頭做了三個工具 episode artwork

EPISODE · Aug 21, 2026 · 8 MIN

MCP 新規格拿掉連線交握,變成一問一答,Simon Willison 回頭做了三個工具

from 脈報 · host 思思主播

MCP 新規格拿掉連線交握與 session 編號,變成一問一答的無狀態 AI 基礎設施。文章拆解拿掉了什麼、狀態改由誰承擔,以及 Simon Willison 回頭做三個工具的理由。 ⭐ 文章深度讀:好稽核,不等於安全 → https://heymaibao.com/mcp-stateless-spec-simon-willison-three-tools/ ⚡ 章節重點 開場 00:00 先把名詞放平 00:28 拿掉的是什麼 01:12 官方的算盤 02:31 狀態沒有消失,只是換人扛 03:35 一度失去興趣的人回頭做了三個工具 04:27 好稽核,不等於安全 06:02 你現在可以做什麼 07:39 收尾 08:19 📝 懶人包 ∙ 新版規格 2026-07-28 把 MCP 從雙向有狀態協定改成一問一答的無狀態協定,initialize / initialized 交握和 Mcp-Session-Id 這個 session 編號一起退場 ∙ 呼叫一個工具從兩個 HTTP 請求變成一個,任何請求都能落在一般負載平衡後面的任一台機器,不需要共用儲存。Simon Willison 說實作複雜度因此大幅下降,他那一週做了三個 MCP 工具,其中 datasette-mcp 是他自己說大概第四次嘗試才做出敢發佈的版本 ∙ 這是破壞性變更,但官方同時立了最短十二個月的正式棄用政策,Roots、Sampling、Logging 和舊的 HTTP + SSE 傳輸都進入下架排程 ∙ 我的觀察是,這次改版值不值得投入,關鍵在它把「誰來扛狀態」這件事從協定手上還給了你 📚 參考資料 Model Context Protocol 規格 2026-07-28 發佈公告 → https://blog.modelcontextprotocol.io/posts/2026-07-28/ Stateless MCP has recaptured my interest (and inspired mcp-explorer and datasette-mcp) → https://simonwillison.net/2026/Jul/31/stateless-mcp/ Supporting protocol revision 2026-07-28 | MCP TypeScript SDK → https://ts.sdk.modelcontextprotocol.io/v2/migration/support-2026-07-28 SEP-2596: Specification Feature Lifecycle and Deprecation Policy → https://modelcontextprotocol.io/seps/2596-spec-feature-lifecycle-and-deprecation The lethal trifecta for AI agents: private data, untrusted content, and external communication → https://simonwillison.net/2025/Jun/16/the-lethal-trifecta/

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MCP 新規格拿掉連線交握,變成一問一答,Simon Willison 回頭做了三個工具

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