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Deep Research

Caution

Multi-step research agent that searches the web, verifies sources, and produces cited reports with structured findings.

By Anthropic 12,500 v1.2.0 Updated 2026-03-10

Install

Claude Code

Copy the SKILL.md file to your project's .claude/skills/ directory

About This Skill

Deep Research is a comprehensive research skill that conducts multi-step investigations across the web. It breaks down complex research questions into sub-queries, searches multiple sources, cross-references findings, and produces well-structured reports with proper citations.

How It Works

  1. Query decomposition — Breaks your research question into 3-7 focused sub-queries
  2. Parallel search — Searches the web for each sub-query using WebSearch
  3. Source verification — Fetches and reads source pages to verify claims
  4. Synthesis — Combines findings into a cohesive report with citations
  5. Quality check — Reviews the report for consistency and completeness

Best For

  • Comprehensive topic overviews requiring multiple sources
  • Fact-checking and claim verification
  • Competitive intelligence gathering
  • Academic-style literature reviews

Use Cases

  • Academic literature reviews
  • Market research and competitive analysis
  • Technology landscape assessment
  • Due diligence research

Pros & Cons

Pros

  • + Thorough multi-source verification
  • + Structured output with proper citations
  • + Handles complex multi-step queries well
  • + Works across academic and business domains

Cons

  • - Slower than single-step search (5-15 min for complex topics)
  • - Requires WebSearch and WebFetch tool access
  • - May hit rate limits on extensive research sessions

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