Deep Research Orchestrate multi-phase deep research campaigns that gather, cross-reference, and synthesize information from multiple sources. When to use When you need to investigate a complex topic thoroughly — spanning web sources, codebase patterns, stored memory, and external documentation — and produce a structured synthesis. Steps 1. Define research scope — break the question into 3-7 sub-questions that together answer the main question 2. Search existing knowledge — call and to check what's already known 3. Web research — write the run marker first, then use and for each sub-question;…