Best Data & Analysis Claude Skills [2026]
5 curated Data & Analysis Claude Skills that extend Claude.ai, Claude Code, and the API. Each one adds specialized data & analysis abilities to Claude.
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CSV Data Summarizer Automatically analyzes CSV files and generates comprehensive insights with visualizations without requiring user prompts. By @coffeefuelbump deep-research Execute autonomous multi-step research using Gemini Deep Research Agent for market analysis, competitive landscaping, and literature reviews. By @sanjay3290 postgres Execute safe read-only SQL queries against PostgreSQL databases with multi-connection support and defense-in-depth security. By @sanjay3290 recursive-research Recursive research up to PhD level across any domain (science, tech, business, arts, humanities) with source tiering, WDM + Munger inversion for autonomous decisions, and disk checkpointing to survive context compaction. By @Anjos2 root-cause-tracing Use when errors occur deep in execution and you need to trace back to find the original trigger.