03 — Subagents

Parallel subagents with independent context windows, named roles, and structured fan-out/fan-in semantics. The harness pattern proven in Devin's parallel cloud agents and Qwen Code's named-vs-fork distinction. Subagents are first-class — every CLI feature available to the main agent is available to a subagent.

Subagent types

Runtime note

Subagent orchestration runs inside the engine; Picasso's role roster (apps/cli/agents/*.yaml) is the preset source. See architecture.