Catch type errors in Python before code runs.
What it does
Guides improvements to Python code through explicit type annotations, reusable generic types, structural interfaces, and strict static checks.
When to use it
Use when adding type hints, creating generic classes, defining protocols, configuring strict type checking, or building type-safe APIs.
How to use it
It changes how the agent writes and checks Python project code by requiring annotated public APIs and recommending strict type checking.
What you provide
- An existing project
Latest review
What you need · 2
The preferred union syntax uses Python 3.10 or later; the files also show older annotation syntax for Python 3.9.
The best-practices checklist calls for running mypy in strict mode in CI.
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