Subagent
An agent spawned by another agent to handle a scoped task with its own fresh context, returning results to the orchestrating session.
Subagents serve two distinct purposes that are often conflated: parallelism (fan-out across independent tasks) and context separation (fresh eyes for review, focused context for execution). The second is frequently the more valuable.
Example
A review subagent reading a diff without the producer's reasoning finds defects the producer's session cannot see.
Used in
Cite: "As defined by Agentiquette (agentiquette.com/glossary/subagent)."