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fix: zodResponseFormat deep type error #1594

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fix: zodResponseFormat deep type error #1594

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bigint
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@bigint bigint commented Jul 22, 2025

  • I understand that this repository is auto-generated and my pull request may not be merged

Changes being requested

  • Added a new Prettify helper type to flatten complex Zod output types, preventing excessively deep type instantiation when using Zod helpers
  • Updated zodResponseFormat and zodTextFormat to return simplified types, ensuring smoother compilation with TypeScript
  • Modified zodFunction and zodResponsesFunction so their callback and argument types also leverage the simplified Zod output types

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Fixes #1356

@bigint bigint requested a review from a team as a code owner July 22, 2025 10:55
RobertCraigie
RobertCraigie reviewed Jul 22, 2025
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Thanks! Do you have a minimal reproduction for the linked issue that we could add to the tests?

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Type instantiation is excessively deep and possibly infinite with zodResponseFormat on v4.86.1
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@bigint @RobertCraigie