ty still misses things caught by mypy. It also doesn't have the same level of support for Pydantic yet. I use it (because it's so damn fast), but along with mypy, not a replacement yet.

Yes, mypy is slow, but who cares if it's the agent waiting on it to complete.

Yep, I prefer pyright though, but ty is too early to be relied on (though I love love ruff so I'm sure they will get there.(