Vercel AI SDK

Current integration pattern for AI SDK calls. A dedicated middleware helper is planned; today, wrap the call in a trace and log the model step explicitly.

Current pattern

import { generateText } from "ai";
import { anthropic } from "@ai-sdk/anthropic";
import { TraceClient } from "@theta-lab/obsrv";

const client = new TraceClient();

await client.trace({ name: "ai-sdk-call", runType: "prod" }, async (t) => {
  await t.step({ name: "generateText", type: "llm", model: "claude-sonnet-4-6" }, async (s) => {
    s.logMessage({ role: "user", text: "Summarize the trace" });

    const result = await generateText({
      model: anthropic("claude-sonnet-4-6"),
      prompt: "Summarize the trace",
    });

    s.logMessage({ role: "assistant", text: result.text });
    return result;
  });
});

Status

The manual pattern is live today. A createObsrvMiddlewarepackage export should not be documented as shipped until it exists in@theta-lab/obsrv.

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