Agentic Surface

Call the Analyst when the output should be an artifact, not a pile of records.

The card is generated by Mastra from the registered Analyst agent. It advertises text input and output, streaming, push notification support, and the live Analyst tool skills.

Application code

import { MastraClient } from "@mastra/client-js";

const client = new MastraClient({
  baseUrl: "http://localhost:15030",
});

const a2a = client.getA2A("analystAgent");
const card = await a2a.getAgentCard();

const stream = a2a.sendMessageStream({
  message: {
    kind: "message",
    role: "user",
    messageId: crypto.randomUUID(),
    parts: [{ kind: "text", text: "What changed around Maharam this week?" }],
  },
});

Mastra subagent

import { A2AAgent } from "@mastra/core/a2a";

export const colophonAnalyst = new A2AAgent({
  url: "http://localhost:15030/.well-known/agent-card.json",
  retries: 2,
  timeoutMs: 30_000,
});