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I have a similar tool to shrink ray, called [bonsai](https://github.com/nnunley/bonsai). I designed it to allow me to try to inline and reduce code for both simplifying single file examples, as well working across multiple files. It uses Tree-Sitter for syntax awareness, and the [Perses algorithm](https://doi.org/10.1109/ICSE.2018.00046) as the methodology for simplification.

I'd love to get some feedback if anyone's interested.

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This looks interesting, and definitely useful for non-C/Python languages, which existing reducers I know of mostly don't have explicit support for! I can't get it to build though (I've filed an issue).

I was also wondering: is there a UI while reduction happens? I've found Shrink Ray's UI improvements in the last year to be much more useful than I first expected: not just because it gives me something to look at, but because it really helps me understand if reduction is on the right path or not. [Some of the new Shrink Ray extras like being able to rewind reduction to a past point and to skip passes are also really useful too.]

What a great idea to include tree sitter

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