Zod Schema

zod is a TypeScript-first schema validation with static type inference.

import { z } from "genaiscript/runtime"
// city array schema
const CitySchema = z.array(
    z.object({
        name: z.string(),
        population: z.number(),
        url: z.string(),
    })
)

The zod schemas can be used in defSchema to constrain the output of the tool.

// JSON schema to constrain the output of the tool.
const schema = defSchema("CITY_SCHEMA", CitySchema)
...