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JPeer264 merged 1 commit into from
Jul 21, 2026
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docs(cloudflare): Clarify DO instrumentation #18765

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24 changes: 24 additions & 0 deletions docs/platforms/javascript/guides/cloudflare/features/durableobject.mdx
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Expand Up @@ -24,6 +24,30 @@ export const MyDurableObject = Sentry.instrumentDurableObjectWithSentry(
);
```

## Classes That Extend Durable Objects

`instrumentDurableObjectWithSentry` works with any class that extends `DurableObject`, not only those that extend it directly. This includes classes built on top of Durable Objects by other libraries.

For example, the [Cloudflare Agents SDK](https://developers.cloudflare.com/agents/) builds its `Agent` and `AIChatAgent` classes on top of Durable Objects, so you can instrument them the same way:

```typescript
import * as Sentry from "@sentry/cloudflare";
import { Agent } from "agents";

class MyAgentBase extends Agent<Env> {
// impl
}

// Export your named class as defined in your wrangler config
export const MyAgent = Sentry.instrumentDurableObjectWithSentry(
(env: Env) => ({
dsn: "___PUBLIC_DSN___",
tracesSampleRate: 1.0,
}),
MyAgentBase
);
```

## RPC Trace Propagation

To enable distributed tracing across RPC calls to your Durable Objects, see <PlatformLink to="/tracing/distributed-tracing">Distributed Tracing</PlatformLink>.
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