ValTool.ts

export class HttpTool {
  constructor(readonly name: string) {}

  url() {
    const n = this.name.toLowerCase().replace("/", "-");
    return `https://${n}.web.val.run`;
  }

  async call(ops: any): Promise<string> {
    const url = this.url();
    const response = await fetch(url, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify(ops),
    });
    const parsed = await response.json();
    return parsed.result;
  }

  async zodSchema(): Promise<z.ZodTypeAny> {
    const response = await fetch(`${this.url()}/schema`);
    const j = await response.json();
    const s = jsonSchemaToZod(j);
    return evalZodSchema(s);
  }

  async toolDesc(): Promise<CoreTool> {
    const schema = await this.zodSchema();
    return {
      description: this.name,
      parameters: schema,
      execute: async (ops: any) => {
        const parsed = schema.parse(ops);
        return this.call(parsed);
      },
    };
  }
}

const evalZodSchema = (s: string) => {
  const fullStr = `const { z } = require("zod");\n${s}`;
  return eval(fullStr);
};