mypy ci

Domain: CI CD Automation

🎯 Motivation

Running mypy in CI ensures every push and PR is type-checked automatically. It catches type errors that local development might miss, preventing type-related bugs from ever reaching the main branch.

📋 Concrete Example

A GitHub Actions step runs mypy --strict mypackage/ and fails the build if any function receives an argument of the wrong type, blocking the PR until it is fixed.

🔗 Analogy

mypy-ci is like a bouncer who checks IDs at the club entrance (PR). If your ID (types) does not match, you do not get in (merge), no matter how charming you are.