Vercel: Claude Managed Agents in Chat SDK

The Vercel AI SDK now runs Claude Managed Agents through the Chat SDK. Anthropic's persistent, sandboxed agents are wired into the harness layer, and Vercel shipped a working reference to prove it: a Slack research bot with one session per thread, streamed briefs that cite sources, and no Slack credentials for your app to manage.

What changed: the agent platform handles session persistence and OAuth instead of your application code. The reference bot shows the full loop — thread-scoped agent sessions, streamed responses with source links, and zero credential handling in the app itself.

Why a builder cares: persistent agent sessions are where chat products are heading, and this removes the two hardest parts of shipping one — session state and credential plumbing. If you build chat on this stack, it's the shortest path from demo to product.