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Valid JSON Is Not a Contract: Five Schema Myths

This story is from 2026-09-03. It is preserved in the archive; the latest stories are on the live feed.

Have you ever shipped model JSON because parsing succeeded? I have, and a required field quietly vanished. Parsing only proves the bytes were JSON. The hole under a successful parse A teammate pastes a schema into chat. The model replies with a tidy object. They drop it straight into a handler. The…

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  1. 2026-09-03 22:52 · DEV Community — AI
    Valid JSON Is Not a Contract: Five Schema Myths

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