fix(langchain): Fix structured parser error handling

langchain-ai / langchainjs

🦜🔗 Build context-aware reasoning applications 🦜🔗

https://js.langchain.com/docs/

MIT License

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Open burivuhster opened 3 days ago

burivuhster commented 3 days ago

Previously, StructuredOutputParser would sometimes throw JSON.parse errors instead of the original Zod schema validation errors.

This PR modifies the fallback mechanism to only trigger for JSON parsing failures, while preserving Zod's schema validation errors.

Relevant links:

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