whetstone_DSL/tmp_eval_large_specs_20260303/cp_026_python.md

Data Quality Checker (cp_026)

Objective

Build a data quality checker with null, range, uniqueness, and referential integrity rules.

Language & Library Constraints

• Primary language: python
• Available libraries: fastapi, pydantic, sqlalchemy, requests
• Use library APIs explicitly where suitable in execution contracts.

Acceptance

• Deterministic taskitems with strict execution contracts.
• Include selected library and preferred APIs when applicable.