15 · The Workbench

Subagent

Agent spawned by an agent

A secondary agent instance spun up by a parent agent for a subtask — research one file, run tests in isolation, or explore a hypothesis — then return results upstream.

Concrete example

The main agent delegates “map every API route” to a subagent while it edits the handler.

Why it matters

How multi-agent systems scale work — and complexity.