deep-research

by firecrawl

Multi-source research with source triangulation and fact-checking. Use for any research task requiring 3+ sources.

npx skills add https://github.com/firecrawl/web-agent --skill deep-research
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Deep Research

Search Strategy

  • Break the topic into 3-5 distinct angles
  • 2-3 queries per angle using different terminology
  • Use site: operator for targeted searches (e.g. site:arxiv.org, site:github.com)
  • Include official, comparison, and review-oriented queries
  • Aim for 5-10 unique, high-quality sources

Extraction

  • Scrape each source with a targeted query parameter -- don't dump full pages into context
  • Extract: key claims, data points, dates, attributed quotes
  • Record author, publication, date, and URL for every source

Fact-Checking

  • Cross-reference claims across 2+ sources
  • Flag single-source claims explicitly
  • Assign confidence: high (3+ sources agree), medium (2), low (1 or conflicting)
  • Include contrarian viewpoints -- don't confirmation-bias the results

Output

  • Structure by subtopic, not by source
  • Inline citations for every claim
  • Call formatOutput with the structured data

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