JSON schema sample generator

Honesty about the re-validation loop: every document is checked against your schema with a local keyword-subset validator, not Ajv. It checks type, enum, const, required, properties and item bounds, string lengths and patterns, numeric bounds with exclusives and multiples, allOf, anyOf, oneOf, not, and common formats; anything else your schema uses is ignored and listed in the notes. Remote references are never fetched. YAML input accepts plain block mappings and sequences; anchors, aliases, tags, and block scalars are refused. A sample that fails validation is shown as failing, with the reason, because that is what the generator produced.