Devin Adds Code-Defined Multi-Agent Workflows

This turns multi-agent delegation from an opaque conversation into inspectable engineering infrastructure, though the flexibility comes with real cost and coordination tradeoffs.

• –Fan-out, pipeline, and parallel primitives support complex audit → fix → verify workflows.
• –Structured outputs and recorded run IDs make handoffs reproducible and interrupted runs resumable.
• –Separate VMs isolate agents cleanly, while shared-VM mode helps when agents need the same working tree.
• –Every child agent consumes Devin resources, so teams should test on small slices and use cheaper modes for high-volume stages.