"No existing trace found" when using with AI-SDK in Deno

[supreme-gg-gg]

Describe the bug

I ran into the following issue after switching the agents to use the google Gemini model via Vercel AI-SDK. I tried disabling tracing but it did not help. Interestingly, this only happened on Deno when I switched to npm it worked fine. But since the library says it supports Deno, perhaps I misconfigured something?

Error: No existing trace found
    at withNewSpanContext (file:///Users/.../Library/Caches/deno/npm/registry.npmjs.org/@openai/agents-core/0.3.3_1/dist/tracing/context.mjs:151:15)
    at file:///Users/.../Library/Caches/deno/npm/registry.npmjs.org/@openai/agents-core/0.3.3_1/dist/tracing/createSpans.mjs:6:16
    at AiSdkModel.getResponse (file:///Users/.../Library/Caches/deno/npm/registry.npmjs.org/@openai/agents-extensions/0.3.3/dist/aiSdk.mjs:482:16)
    at file:///Users/.../Library/Caches/deno/npm/registry.npmjs.org/@openai/agents-core/0.3.3/dist/run.mjs:414:76
    at async executeRun (file:///Users/.../Library/Caches/deno/npm/registry.npmjs.org/@openai/agents-core/0.3.3/dist/run.mjs:270:31)
    at async file:///Users/.../Library/Caches/deno/npm/registry.npmjs.org/@openai/agents-core/0.3.3/dist/tracing/context.mjs:46:24
    at async run (file:///Users/.../Library/Caches/deno/npm/registry.npmjs.org/@openai/agents-core/0.3.3/dist/run.mjs:27:16)
    at async file:///Users/.../supabase/functions/ai-ide/test_aisdk.ts:19:18

Everything works fine before I switched to AI-SDK or when I followed the older version of docs to setup model provider for chat completion endpoint here: https://github.com/openai/openai-agents-js/blob/main/examples/model-providers/custom-example-provider.ts

Debug information

• Agents SDK version: v0.3.3 (latest)
• AI-SDK Google: 2.0.44
• Runtime environment:

deno 2.5.6 (stable, release, aarch64-apple-darwin)
v8 14.0.365.5-rusty
typescript 5.9.2

For more info I'm running this using Supabase edge functions runtime locally.

Repro steps

A simple example:

import { Agent, Runner } from "@openai/agents";
import { aisdk } from "@openai/agents-extensions";
import { createGoogleGenerativeAI } from "@ai-sdk/google";

const apiKey = Deno.env.get("GEMINI_API_KEY");
console.log("API Key present:", !!apiKey);
const google = createGoogleGenerativeAI({ apiKey: apiKey });
const model = aisdk(google("gemini-2.5-flash"));

const agent = new Agent({
  name: "Test Agent",
  instructions: "You are a helpful assistant. Just say 'I am working'.",
  model,
});

console.log("Starting agent run...");

try {
  const runner = new Runner({ tracingDisabled: true });
  const result = await runner.run(agent, "Are you working?");
  console.log("Agent Output:", result.finalOutput);
} catch (error) {
  console.error("Agent failed:", error);
}

Expected behavior

This should work without tracing error on Deno. At least if I disabled tracing no tracing related error should occur...