Schema
Target dialect for a generated JSON Schema. Structured-output modes of the major LLM providers each accept a different subset of JSON Schema; the selected value acts as a preset filter applied on top of the individual knobs — the effective rule is the stricter of the knob and the dialect limit, and features the dialect rejects are never emitted regardless of the knobs.
Entries
Emit only the intersection accepted by all major structured-output modes (OpenAI strict mode, Anthropic strict tool use, Gemini, and grammar-constrained local inference engines). Nullability uses type arrays, unions use anyOf, every object sets additionalProperties: false with all properties required, nesting is capped at five levels, and size constraints such as maxItems are expressed as description text instead of constraint keywords. This is the default and the safest choice when the consuming provider is not known up front.
Target OpenAI Structured Outputs (strict mode). Unlocks constraint keywords OpenAI supports (minItems/maxItems, string lengths, numeric ranges, pattern) while enforcing its documented rejections (no oneOf/allOf, no patternProperties, five-level nesting cap, all properties required, additionalProperties: false).
Target Anthropic structured outputs / strict tool use. Enforces its documented rejections: no recursion, no maxItems or string-length or numeric-range constraints (expressed as description text instead), string formats limited to the documented whitelist, and additionalProperties: false on every object.
Functions
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants.