Extract

About data-analytics MCP servers and Claude skills

data-analytics MCP servers extend what AI agents can do inside Claude Code, Cursor, Copilot, Codex, and Windsurf. The Skiln directory indexes 16,000+ such integrations across 22 categories.

Extract is one of hundreds of data-analytics entries indexed on Skiln. Browse the full data-analytics category or the complete directory of Claude skills, MCP servers, agents, commands, and hooks.

Related data-analytics MCPs and skills

• Paper Writer by roomi-fields

  Write academic papers (IMRaD structure) for conferences and journals, with mandatory anti-hallucination citation verification. Triggers (FR + EN) : "écris un paper", "article pour conférence", "rédige pour la conférence", "structure IMRaD", "soumission paper", "write a paper on", "academic article", "/paper-trail:new-paper". Builds on existing SOTAs in the registry — does NOT invent references. Every citation passes through citation-receipts validation before being accepted in the final draft.

• Pdf Cascade by roomi-fields

  Acquire PDFs for bibliographic references via a strict 10-source cascade (Crossref OA → arXiv → OpenAlex → Unpaywall → HAL → CORE → archive.org → WebSearch queue; optionally Sci-Hub + Anna's Archive in opt-in mode). Each acquired PDF is validated against expected author/title/year (page 1 anti-homonymy) before being accepted. Trigger this skill whenever the user wants to download a PDF for a reference, fill a cascade, retry an acquisition, or push a `candidate`/`uid_resolved` ref forward in t...

• Registry Doctor by roomi-fields

  Audit the bibliography registry for consistency via 19 mechanical invariants (I1-I19) covering state validity, slug uniqueness, UID format, PDF path normalization, file presence on disk, sha256 integrity, page-1 validation log coherence, state history monotonicity, attempt numbering, blocked-reason presence, citation reciprocity with SOTAs, PDF duplicates, terminal state escapes, RTFM OCR overdue. Trigger this skill whenever the user wants to audit the registry, fix obvious drift, check invar...

• Research Summarizer by LeoYeAI

  Structured research summarization agent skill for non-dev users. Handles academic papers, web articles, reports, and documentation. Extracts key findings, generates comparative analyses, and produces properly formatted citations. Use when: user wants to summarize a research paper, compare multiple sources, extract citations from documents, or create structured research briefs. Plugin for Claude Code, Codex, Gemini CLI, and OpenClaw.

• Clickhouse Migrations by PostHog

  ClickHouse migration patterns and rules. Use when creating or modifying ClickHouse migrations.

• Django Migrations by PostHog

  Django migration patterns and safety workflow for PostHog. Use when creating, adjusting, or reviewing Django/Postgres migrations, including non-blocking index/constraint changes, multi-phase schema changes, data backfills, migration conflict rebasing, and product model moves that require SeparateDatabaseAndState.

• Query Clickhouse Via Metabase by PostHog

  Run ClickHouse `system.query_log` analysis via the internal Metabase API. Use when investigating slow queries, materialization candidates, per-team query performance, ClickHouse cost or memory issues, or any system.query_log question. Covers prod-us and prod-eu, SSO-gated cookie auth via `hogli`, and ready-to-run query patterns.

• Writing Clickhouse Queries by PostHog

  Guide for writing performant ClickHouse queries in PostHog product code. Use when writing HogQL query runners, designing a ClickHouse table for a new product, adding materialized columns or skip indexes, or choosing a row ID format. For optimizing an existing query that is already too slow, use `/optimizing-clickhouse-and-hogql-queries` instead.

Frequently asked questions