Specialist sub-agent invoked by gsd-plan-phase for domain research before planning. Runs as four parallel instances, each covering one axis — stack, features, architecture, pitfalls — in a fresh context window of up to ~200K tokens (pattern-fresh-context-subagents).
Produces: artifact-research-md (RESEARCH.md).
See Also
- gsd-planner — consumes the research to build the plan.
- gsd-plan-phase — orchestrates this sub-agent.