DuckDB Local Skill for Claude

Local-first SQL analytics on files. Read, profile, clean, and export data without a warehouse.

When to Use This Skill

Activate when: Reading local files (CSV, Parquet, JSON, Excel) into DuckDB, profiling data quality, running SQL analytics on local data, cleaning/transforming datasets, exporting results to various formats.

Don't use for: Building dbt models (use dbt-transforms with DuckDB adapter), cloud warehouse administration, pipeline scheduling (use data-pipelines), Python DataFrame transformations (use python-data-engineering).

Scope Constraints

• Local files only -- does not manage cloud warehouse connections or remote databases.
• No cloud warehouse administration (Snowflake, BigQuery, Redshift).
• Reference files loaded on demand -- do not pre-load multiple references.
• File paths must be validated before use; never execute user-provided paths without checking existence.

Model Routing