24 lines
761 B
TypeScript
24 lines
761 B
TypeScript
/**
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* Converts Zod v4 schemas to JSON Schema using native toJSONSchema.
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*/
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import { toJSONSchema, type ZodTypeAny } from 'zod/v4'
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export type JsonSchema7Type = Record<string, unknown>
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// toolToAPISchema() runs this for every tool on every API request (~60-250
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// times/turn). Tool schemas are wrapped with lazySchema() which guarantees the
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// same ZodTypeAny reference per session, so we can cache by identity.
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const cache = new WeakMap<ZodTypeAny, JsonSchema7Type>()
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/**
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* Converts a Zod v4 schema to JSON Schema format.
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*/
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export function zodToJsonSchema(schema: ZodTypeAny): JsonSchema7Type {
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const hit = cache.get(schema)
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if (hit) return hit
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const result = toJSONSchema(schema) as JsonSchema7Type
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cache.set(schema, result)
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return result
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}
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