From 7c6f6c184ca50b5f2b6e9bdfc08236316513bcb0 Mon Sep 17 00:00:00 2001
From: Charly Gomez <charly.gomez1310@gmail.com>
Date: Thu, 30 Apr 2026 15:29:05 +0200
Subject: [PATCH 1/2] set ctx on segment

---
 .../deno-streamed/tests/spans.test.ts         | 25 +++++++++++++++++++
 packages/deno/src/integrations/context.ts     | 24 +++++++++++++++++-
 2 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/dev-packages/e2e-tests/test-applications/deno-streamed/tests/spans.test.ts b/dev-packages/e2e-tests/test-applications/deno-streamed/tests/spans.test.ts
index 023429b07f41..15d7eaf99d9a 100644
--- a/dev-packages/e2e-tests/test-applications/deno-streamed/tests/spans.test.ts
+++ b/dev-packages/e2e-tests/test-applications/deno-streamed/tests/spans.test.ts
@@ -3,6 +3,10 @@ import { waitForStreamedSpans, getSpanOp } from '@sentry-internal/test-utils';
 
 const SEGMENT_SPAN = {
   attributes: {
+    'app.start_time': {
+      type: 'string',
+      value: expect.any(String),
+    },
     'client.address': {
       type: 'string',
       value: expect.any(String),
@@ -11,6 +15,11 @@ const SEGMENT_SPAN = {
       type: 'integer',
       value: expect.any(Number),
     },
+    // TODO: 'device.archs' is set but arrays are not yet serialized in span attributes
+    'device.processor_count': {
+      type: 'integer',
+      value: expect.any(Number),
+    },
     'http.request.header.accept': {
       type: 'string',
       value: '*/*',
@@ -51,6 +60,14 @@ const SEGMENT_SPAN = {
       type: 'integer',
       value: expect.any(Number),
     },
+    'os.name': {
+      type: 'string',
+      value: expect.any(String),
+    },
+    'os.version': {
+      type: 'string',
+      value: expect.any(String),
+    },
     'sentry.environment': {
       type: 'string',
       value: 'qa',
@@ -115,6 +132,14 @@ const SEGMENT_SPAN = {
       type: 'string',
       value: 'node',
     },
+    'process.runtime.engine.name': {
+      type: 'string',
+      value: 'v8',
+    },
+    'process.runtime.engine.version': {
+      type: 'string',
+      value: expect.any(String),
+    },
   },
   end_timestamp: expect.any(Number),
   is_segment: true,
diff --git a/packages/deno/src/integrations/context.ts b/packages/deno/src/integrations/context.ts
index 979ffff7d0e8..82b70e178275 100644
--- a/packages/deno/src/integrations/context.ts
+++ b/packages/deno/src/integrations/context.ts
@@ -1,5 +1,5 @@
 import type { Event, IntegrationFn } from '@sentry/core';
-import { defineIntegration } from '@sentry/core';
+import { defineIntegration, safeSetSpanJSONAttributes } from '@sentry/core';
 
 const INTEGRATION_NAME = 'DenoContext';
 
@@ -53,11 +53,33 @@ async function addDenoRuntimeContext(event: Event): Promise<Event> {
 }
 
 const _denoContextIntegration = (() => {
+  // Eagerly resolve the async OS release so it's available synchronously in processSegmentSpan
+  let cachedOsRelease: string | undefined;
+  getOSRelease()
+    .then(release => {
+      cachedOsRelease = release;
+    })
+    .catch(() => {
+      // Ignore - os.version will be undefined
+    });
+
   return {
     name: INTEGRATION_NAME,
     processEvent(event) {
       return addDenoRuntimeContext(event);
     },
+    processSegmentSpan(span) {
+      safeSetSpanJSONAttributes(span, {
+        'app.start_time': new Date(Date.now() - performance.now()).toISOString(),
+        'device.archs': [Deno.build.arch],
+        // eslint-disable-next-line no-restricted-globals
+        'device.processor_count': navigator.hardwareConcurrency,
+        'os.name': getOSName(),
+        'os.version': cachedOsRelease,
+        'process.runtime.engine.name': 'v8',
+        'process.runtime.engine.version': Deno.version.v8,
+      });
+    },
   };
 }) satisfies IntegrationFn;
 

From 2fd4d2ec3eb4c1e531551aedbc9f0f2892c0388d Mon Sep 17 00:00:00 2001
From: Charly Gomez <charly.gomez1310@gmail.com>
Date: Thu, 30 Apr 2026 16:04:49 +0200
Subject: [PATCH 2/2] .

---
 .../e2e-tests/test-applications/deno-streamed/package.json      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dev-packages/e2e-tests/test-applications/deno-streamed/package.json b/dev-packages/e2e-tests/test-applications/deno-streamed/package.json
index 7bbaeaf631f8..282f8abb6492 100644
--- a/dev-packages/e2e-tests/test-applications/deno-streamed/package.json
+++ b/dev-packages/e2e-tests/test-applications/deno-streamed/package.json
@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "private": true,
   "scripts": {
-    "start": "deno run --allow-net --allow-env --allow-read src/app.ts",
+    "start": "deno run --allow-net --allow-env --allow-read --allow-sys src/app.ts",
     "test": "playwright test",
     "clean": "npx rimraf node_modules pnpm-lock.yaml",
     "test:build": "pnpm install",