# Constructive typed-schema fixture composer

Build-time release reference. Runtime readiness, deployment, payment settlement and external indexing are not evaluated here. Prices are proposed; this file cannot authorize execution or payment.

Compose a complete bounded basis of valid fixture values with per-goal coverage or unavailability under a small typed JSON Schema profile.

Release: 0.29.0. Built: 2026-10-06T15:38:00Z.

## Choose for
- generate valid boundary request bodies from a supported typed JSON schema
- compose goal-labelled schema fixtures for a caller-run validator harness

## Outside this profile
- Exhaustive input-space, every property combination or every array-position coverage
- Counterexamples proving schema compatibility or arbitrary satisfiability search
- Arbitrary JSON Schema, formats, regexes, references, combinators, nested objects or nested arrays
- Executing target tests, fetching services, running supplied code or proving security

Proposed nominal USD 0.005 per successful call; payer fees excluded. No verified runtime availability.

- [Exact release contract](/reference/services/json-schema-fixtures-compose.json)
- [Input schema](/reference/schemas/json-schema-fixtures-compose.input.json)
- [Output schema](/reference/schemas/json-schema-fixtures-compose.output.json)
- [Fixed example](/reference/examples/json-schema-fixtures-compose.json)
- [Complete HTML reference](/discover/tools/json-schema-fixtures-compose)