Claude Managed Agents dynamic workflows (beta): agents write their own multi-agent jobs
What is it?
A Managed Agents agent can now write a workflow (a program that runs many agents in phases and merges their results) and run it server-side in the background. The target is large jobs, such as reviewing hundreds of documents. You turn it on with the agent's multiagent field and track progress through workflow_run.* events.
Why does it matter?
It can take over fan-out work without you writing orchestration code. That may cut the effort behind bulk document or code review pipelines. The notes did not cover cost or agent-count limits, so try it on a small job first.
Maturity
BetaBeta; requires the managed-agents-2026-04-01 header. Only the release note was read, not the detailed Workflow runs docs.
How to track it
- General availability without the beta header: check the Claude platform release notes for Managed Agents entries weekly.
- The still-unconfirmed run costs and agent-count limits: read the detailed Workflow runs docs in the platform documentation first.
- Changes to the
workflow_run.*events or themultiagentfield: watch the same release notes for follow-up entries.