AI SDK 6

AI SDK 6 adds an Agent abstraction, ToolLoopAgent with a 20-step default loop, tool execution approval via a needsApproval flag, strict mode, MCP tool calling with structured output, DevTools, reranking, standard JSON Schema, and image editing. Thomson Reuters built CoCounsel with 3 developers in 2 months and now serves 1,300 accounting firms.

Vercel | In Edition 15, Saturday 27 Dec 2025

SOURCE Vercel, Introducing agents, tool execution approval, DevTools, full MCP support, reranking, image editing, and more

Added to The Deploy Log Monday 14 Sep 2026, updated Thursday 17 Sep 2026. Read Edition 15, the edition that carried it.

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