Function fromSchema

packages/opencode/src/tool/json-schema.ts:8–22

(schema: Schema.Top)

const cache = new WeakMap<Schema.Top, JSONSchema7>()

export function fromSchema(schema: Schema.Top): JSONSchema7 {
  const cached = cache.get(schema)
  if (cached) return cached

  const document = Schema.toJsonSchemaDocument(schema, { additionalProperties: true })
  const result = normalize({
    $schema: JsonSchema.META_SCHEMA_URI_DRAFT_2020_12,
    ...document.schema,
    ...(Object.keys(document.definitions).length > 0 ? { $defs: document.definitions } : {}),
  })
  const inlined = dropDefinitionsIfResolved(inlineLocalReferences(result))
  if (!isJsonSchema(inlined)) throw new Error("tool JSON Schema helper produced a non-schema value")
  cache.set(schema, inlined)
  return inlined
}

export function fromTool(tool: Tool.Def): JSONSchema7 {
  return tool.jsonSchema ?? fromSchema(tool.parameters as Schema.Top)