oppi.li
source dump of claude code
1/**
2 * Converts Zod v4 schemas to JSON Schema using native toJSONSchema.
3 */
4
5import { toJSONSchema, type ZodTypeAny } from 'zod/v4'
6
7export type JsonSchema7Type = Record<string, unknown>
8
9// toolToAPISchema() runs this for every tool on every API request (~60-250
10// times/turn). Tool schemas are wrapped with lazySchema() which guarantees the
11// same ZodTypeAny reference per session, so we can cache by identity.
12const cache = new WeakMap<ZodTypeAny, JsonSchema7Type>()
13
14/**
15 * Converts a Zod v4 schema to JSON Schema format.
16 */
17export function zodToJsonSchema(schema: ZodTypeAny): JsonSchema7Type {
18 const hit = cache.get(schema)
19 if (hit) return hit
20 const result = toJSONSchema(schema) as JsonSchema7Type
21 cache.set(schema, result)
22 return result
23}