Ty migration notes

This repository has been migrated from mypy to Astral ty for generated project type checking.

What changed

• Replaced the generated type-check config fragment:

  • template/mypy-config.toml ➜ template/ty-config.toml

• Updated config assembly in src/uv_start/dev_deps.py so generated pyproject.toml files now include [tool.ty] settings.

• Updated generated dev dependencies in src/uv_start/dev_deps.py:

  • uv add --dev ... mypy ... ➜ uv add --dev ... ty ...

• Updated generated CI template (template/.github/workflows/ci.yml) to run Ty:

  • uv run ty check src tests

• Updated repository docs/tests that referenced mypy to refer to Ty.

Ty usage in generated projects

Run type checks with:

uv run ty check src tests

Ty configuration is generated into each project’s pyproject.toml under [tool.ty].