duckdb is so nice coupled with claude code. It extensive file support and some very interesting decisions on local caching data (like from S3 or snowflake) makes it easy to slice and dice almost any kind of tabular data.
Can you expand upon it? You mean claude code use it to store its memory/state or it can do business queries using DuckDB.
You can also write a skill that CC can re-use if you're analyzing a lot of similar data sets with minor variance.