Vercel Ships AI SDK 7 With Production Agent Primitives (Approvals, Durability, Harness Integration)

Vercel·medium signal

Vercel released AI SDK 7, repositioning the toolkit from prototype glue to production agent infrastructure: a unified reasoning-effort option, per-tool typed context, an uploadFile reference API, MCP Apps support, and built-in telemetry. The headline addition is WorkflowAgent, which integrates the AI SDK with Vercel's Workflow SDK for crash-durable agent runs, plus a HarnessAgent API for driving Claude Code, Codex, and Pi from one interface. It directly targets the reliability gaps that break in-memory agent loops.