deep-research

Overview

Deep Research is a comprehensive research engine skill for Claude Code that brings advanced research capabilities to the terminal. It features an 8.5-phase research pipeline with multiple research modes (Quick, Standard, Deep, UltraDeep), parallel search execution, citation validation, and professional report generation in markdown, HTML, and PDF formats.

Key Features

• 8.5-Phase Research Pipeline - Scope, Plan, Retrieve (parallel), Triangulate, Outline Refinement, Synthesize, Critique, Refine, and Package for thorough research coverage
• Auto-Continuation System - True unlimited length output (50K, 100K+ words) via recursive agent spawning with context preservation for comprehensive research reports
• Parallel Search Execution - 5-10 concurrent searches plus parallel agents delivering 3-5x faster Phase 3 retrieval with First Finish Search (FFS) adaptive completion
• Citation Validation (CiteGuard) - Hallucination detection, URL verification, and multi-source cross-checking to ensure research reliability
• Multiple Output Formats - Professional markdown, McKinsey-style HTML with interactive citation tooltips, and PDF outputs with anti-fatigue prose-first quality enforcement

Who is this for?

This is for researchers, analysts, and developers who need in-depth research capabilities directly from the Claude Code terminal without switching to other tools. It is ideal for anyone conducting comprehensive research on technical topics, market analysis, or comparative studies who wants structured, well-cited reports.