Read this skill when the user asks for a research report, deep research, industry report, analysis report, whitepaper, or any substantive document deliverable; or when the topic requires multi-source retrieval and cross-validation (competitive analysis, market analysis, industry research, deep dive, landscape survey); or when the user is unsatisfied with the depth of an existing answer. Keyword signals: research, deep research, deep dive, analysis, investigate, report, survey, industry analysis, competitive analysis, market analysis. Trigger when: (1) the user wants to produce a formal report or research document as the deliverable; (2) the topic requires current, verifiable data from multiple sources — news, market analysis, competitive landscape, industry research; (3) the user is unsatisfied with the depth of an existing answer. Skip when a single search or model recall suffices and no document output is needed.