--- description: 调查现有实现、可复用能力与需求边界;关键意图不清时按需展开 Grill。 --- # /FD-research Use the supplied text/files or the single clear current task; clarify ambiguity. Links are relative to this command file. 1. Read [fd-engineering](../skills/fd-engineering/SKILL.md) and [protocol workflow](../skills/fd-engineering/references/workflow.md). Reuse loaded, unchanged instructions. 2. Use RESEARCH to inspect facts and reuse; use Grill for consequential unknowns. Ask one Chinese question per round and wait. 3. Follow [research](../skills/fd-engineering/references/research.md). Persist complex findings in the single task record; suggest the next stage without implementing unapproved changes. Start each substantive Chinese reply/question body with the exact active-stage marker from the loaded workflow; progress-only updates do not repeat it. Protocol stages do not switch host modes or require host plan/task/question tools. Use actual available capabilities and respect actual permissions; do not simulate results.