Transform and export data using DuckDB SQL. Read CSV/Parquet/JSON/Excel/databases, apply SQL transformations (joins, aggregations, PIVOT/UNPIVOT, sampling), and optionally write results to files. Use when the user wants to: (1) Clean, filter, or transform data, (2) Join multiple data sources, (3) Convert between formats (CSV→Parquet, etc.), (4) Create partitioned datasets, (5) Sample large datasets, (6) Export query results. Prefer this over in-context reasoning for datasets with thousands of rows or complex transformations.
/plugin marketplace add richard-gyiko/duckdb-analytics-plugin/plugin install data-wrangler@data-wrangler-marketplaceThis skill inherits all available tools. When active, it can use any tool Claude has access to.
SECRETS.mdTRANSFORMS.mdexamples/secrets.yamlscripts/query_duckdb.pyUse when working with Payload CMS projects (payload.config.ts, collections, fields, hooks, access control, Payload API). Use when debugging validation errors, security issues, relationship queries, transactions, or hook behavior.