Claude Managed Agents can now run up to 1,000 parallel sub-agents

Anthropic added dynamic workflows to Claude Managed Agents, letting a lead agent distribute tasks across up to 1,000 sub-agents at once. In its testing, a single agent found at most 27 of 70 hidden bugs in a codebase, while the multi-agent workflow consistently found 66.

Why it matters: The result suggests that for broad tasks like code audits, coverage scales with parallel agents rather than with a single longer-running one. That shifts the bottleneck from model capability to orchestration, cost and result review. It also compounds the concern that human review becomes the limiting step in agent-generated work.