Unverified50% confidenceFactExact time
JSON Schema can only express structural and simple value constraints such as types, enums, regex patterns, date formats, numeric upper and lower bounds, required fields, and array lengths; it cannot express arbitrary custom functions, cross-field comparisons, or transformations that change the shape of the data.
1
Sources
50%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
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