Best Data Analysis Agent Skills in 2026
Data analysis skills encode the boring-but-critical discipline of analysis work: profile the data before querying it, state assumptions, validate results against expectations, and present findings with caveats attached.
They pair naturally with a database MCP server — the skill drives the method, the server executes the queries. The database category page below lists the best options to combine with.

データ分析とExcelのためのフルプロセススキル:汚れたフォームのチェック、クリーニング、要件の整合、分析、照合、納品。AIで計算された数値を精査に耐えること。クロスエージェントの普遍性、Openpyxlのみに依存する。

データ分析レポート試薬

Rank a person or brand #1 for their own name — a Claude skill + playbook. On-site SEO, JSON-LD entity graph, off-site authority, and a free GSC rank automation. MIT.
FAQ
What data can these skills analyze?
Whatever the agent can reach: CSVs you attach, databases connected through an MCP server, or API responses fetched mid-conversation. The skill itself is data-source agnostic.
Do I need a database server installed?
Not strictly — a skill can analyze files you paste or attach. But for anything living in Postgres or SQLite, adding the matching MCP server turns a manual copy-paste workflow into a direct query loop.
Can the agent produce charts?
Skills focused on reporting describe chart specifications and summaries; actually rendering charts requires the client or a tool that can execute code. Check each skill's declared tool requirements on its detail page.