data & analysis
data exploration
related: communication and writing · creative and media · business and marketing · document processing
must-install:
- graphify (22.1k stars) — turn any folder into a queryable knowledge graph. also in communication-and-writing. genuinely powerful for navigating large codebases or doc collections.
nice to have:
- CSV Data Summarizer — auto-analyzes CSV files with visualizations. by @coffeefuelbump. pair with D3.js from creative-and-media for richer visuals.
- postgres — safe read-only SQL queries with defense-in-depth security. by @sanjay3290. useful if you regularly query Postgres from Claude.
research
must-install:
- last30days (20.7k stars) — cross-platform topic research. also in communication-and-writing. covers Reddit, X, YouTube, HN, Polymarket — the breadth is what makes it.
- scientific-agent-skills (18.1k stars) — research, science, engineering, analysis, finance, writing. massive scope.
nice to have:
- deep-research — autonomous multi-step research via Gemini. also in development and communication-and-writing. solid if you want Gemini doing the heavy lifting.
debugging
must-install:
- root-cause-tracing — traces errors to original trigger. from obra/superpowers. this is the one to grab first.
- systematic-debugging — structured debugging. also in development.
skip:
- LangSmith Fetch — debug LangChain/LangGraph via execution traces. by @OthmanAdi. only useful if you're already in the LangChain ecosystem.