Comment by mohsen1

I am taking this attitude to an extreme with tsz. I don't want to announce to the world that tsz is ready until I tested it really really well.

Currently tsz passes nearly 100% of TypeScript tests but that is not enough. I want it to be able to type check complex things like type-challenges solutions or complex utility type packages. I'm stress testing it with a repo with 1.5 million lines of code.

I'm constantly assigning AI agents tasks to find bugs in tsz and open issues.

I'll say this is "alpha" when it can do all those things plus matching tsc exactly in thousands of open source projects where tsc reported type errors. It's easy to find CI runs that tsc reported errors. I'll build a database of all the cases I've verified tsz with and will publish those. Hoping that can give folks confidence that tsz is robust

For now, tsz is just a work in progress.

https://tsz.dev