How do I give a Mastra agent web access with UpRock?

// npm i @mastra/core @mastra/mcp   (Node 22.13+)   env: UPROCK_API_KEY, ANTHROPIC_API_KEYimport { Agent } from "@mastra/core/agent";import { MCPClient } from "@mastra/mcp";​const uprock = new MCPClient({  id: "uprock",  servers: {    uprock: {      url: new URL("https://mcp.uprock.ai/mcp"),      requestInit: { headers: { Authorization: `Bearer ${process.env.UPROCK_API_KEY}` } },      timeout: 300_000, // the default is 60 s; a fresh fetch can take 10 to 40 s    },  },});​// A tool call returns the MCP result: { content: [text, resource links] }.type Block = { type: string; text?: string };const textOf = (result: unknown) =>  (result as { content: Block[] }).content.find((b) => b.type === "text")?.text ?? "";​try {  const tools = await uprock.listTools(); // uprock_crawl_fetch, uprock_resource_fetch, ...  const crawlFetch = tools.uprock_crawl_fetch;  const resourceFetch = tools.uprock_resource_fetch;​  // 1. A direct call, no model involved: load a page on a device in Germany.  // Outside an agent run, an empty execution context is enough.  const ctx = {} as Parameters<NonNullable<typeof crawlFetch.execute>>[1];  const page = JSON.parse(    textOf(      await crawlFetch.execute!({ url: "https://example.com", country: "DE" }, ctx),    ),  );  const markdown = textOf(    await resourceFetch.execute!({ uri: page.content.markdown.resource }, ctx),  );  console.log(page.meta.title, markdown.length, "chars of markdown");​  // 2. The same two tools, chosen by a model.  const agent = new Agent({    id: "web-reader",    name: "Web reader",    instructions:      "When you need a web page as it looks in a specific country, or another fetch failed, " +      "call uprock_crawl_fetch with the url and country, then uprock_resource_fetch on the " +      "markdown resource it returns.",    model: "anthropic/claude-sonnet-5-5",    tools: { uprock_crawl_fetch: crawlFetch, uprock_resource_fetch: resourceFetch },  });  const result = await agent.generate(    "What does https://example.com say when opened from Germany?",    { maxSteps: 5 },  );  console.log(result.text);} finally {  await uprock.disconnect();}