feat(cloudflare): Support basic WorkerEntrypoint

[JPeer264]

part of #15942

This is a basic instrumentation for WorkerEntrypoint. There is no extra instrumentWorkerEntrypoint exported, and should work directly with withSentry OOTB:

classMyWorkerextendsWorkerEntrypoint{}exportdefaultSentry.withSentry(()=>({}),MyWorker)

To support the full WorkerEntrypoint there is the need to instrument RPC methods. Without that we can't fully support WorkerEntrypoints but just the basics of it. This can be added once #19991 lands (it is safe to review now and instrument the env in a separate PR)

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If you look at the instrumentations themselves, there is no isInstrumented or markAsInstrumented. The reason is that on the one hand this is not required, as every request is spawning a new instance of the WorkerEntrypoint and on the other hand it wouldn't work as it would mark it as instrumented, but on the request the fetch is overridden and not instrumented.

[github-actions]

Semver Impact of This PR

🟡 Minor (new features)

📋 Changelog Preview

This is how your changes will appear in the changelog.
Entries from this PR are highlighted with a left border (blockquote style).

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New Features ✨

Core

• Support registerTool/registerResource/registerPrompt in MCP integration by betegon in #20071
• Support embeddings in langchain by nicohrubec in #20017

Deps

• Bump lodash.template from 4.5.0 to 4.18.1 by dependabot in #20085
• Bump @xmldom/xmldom from 0.8.3 to 0.8.12 by dependabot in #20066

Other

• (cloudflare) Support basic WorkerEntrypoint by JPeer264 in #19884

• (core, node) Portable Express integration by isaacs in #19928
• (deno) Add denoRuntimeMetricsIntegration by chargome in #20023
• (node, bun) Enforce minimum collection interval in runtime metrics integrations by chargome in #20068

Bug Fixes 🐛

• (aws-serverless) Add timeout to _endSpan forceFlush to prevent Lambda hanging by logaretm in #20064
• (cloudflare) Ensure every request instruments functions by JPeer264 in #20044
• (core) Set span.status to error when MCP tool returns JSON-RPC error response by betegon in #20082
• (gatsby) Fix errorHandler signature to match bundler-plugin-core API by JPeer264 in #20048

Internal Changes 🔧

Core

• Do not emit spans for chats.create in google-genai by nicohrubec in #19990
• Unify .do* span ops to gen_ai.generate_content by nicohrubec in #20074
• Simplify addResponseAttributes in openai integration by nicohrubec in #20013
• Extract shared endStreamSpan for AI integrations by nicohrubec in #20021
• Remove provider-specific AI span attributes in favor of gen_ai attributes in sentry conventions by nicohrubec in #20011

Deps

• Bump mshick/add-pr-comment from dd126dd8c253650d181ad9538d8b4fa218fc31e8 to e7516d74559b5514092f5b096ed29a629a1237c6 by dependabot in #20078
• Bump getsentry/craft/.github/workflows/changelog-preview.yml from 2.24.1 to 2.25.2 by dependabot in #20081

Other

• (node) Add node integration tests for Vercel ToolLoopAgent by nicohrubec in #20087
• (nuxt) Make Nuxt 5 (nightly) E2E optional by s1gr1d in #20113
• Update validate-pr workflow by stephanie-anderson in #20072
• Remove unused tsconfig-template folder by mydea in #20067

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_{🤖 This preview updates automatically when you update the PR.}

[github-actions]

size-limit report 📦

⚠️Warning: Base artifact is not the latest one, because the latest workflow run is not done yet. This may lead to incorrect results. Try to re-run all tests to get up to date results.

Path	Size	% Change	Change
@sentry/browser	25.65 kB	+0.02%	+5 B 🔺
@sentry/browser - with treeshaking flags	24.14 kB	+0.03%	+5 B 🔺
@sentry/browser (incl. Tracing)	42.16 kB	+0.02%	+7 B 🔺
@sentry/browser (incl. Tracing, Profiling)	46.77 kB	+0.02%	+9 B 🔺
@sentry/browser (incl. Tracing, Replay)	80.94 kB	+0.01%	+5 B 🔺
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	70.56 kB	+0.01%	+5 B 🔺
@sentry/browser (incl. Tracing, Replay with Canvas)	85.66 kB	+0.01%	+8 B 🔺
@sentry/browser (incl. Tracing, Replay, Feedback)	97.92 kB	+0.01%	+5 B 🔺
@sentry/browser (incl. Feedback)	42.42 kB	+0.02%	+6 B 🔺
@sentry/browser (incl. sendFeedback)	30.31 kB	+0.02%	+6 B 🔺
@sentry/browser (incl. FeedbackAsync)	35.3 kB	+0.05%	+17 B 🔺
@sentry/browser (incl. Metrics)	26.96 kB	+0.03%	+7 B 🔺
@sentry/browser (incl. Logs)	27.11 kB	+0.03%	+7 B 🔺
@sentry/browser (incl. Metrics & Logs)	27.78 kB	+0.03%	+7 B 🔺
@sentry/react	27.41 kB	+0.03%	+6 B 🔺
@sentry/react (incl. Tracing)	44.48 kB	+0.02%	+5 B 🔺
@sentry/vue	30.08 kB	+0.02%	+5 B 🔺
@sentry/vue (incl. Tracing)	44.05 kB	+0.02%	+8 B 🔺
@sentry/svelte	25.67 kB	+0.02%	+5 B 🔺
CDN Bundle	28.33 kB	+0.05%	+14 B 🔺
CDN Bundle (incl. Tracing)	43.13 kB	+0.06%	+25 B 🔺
CDN Bundle (incl. Logs, Metrics)	29.7 kB	+0.05%	+14 B 🔺
CDN Bundle (incl. Tracing, Logs, Metrics)	44.17 kB	+0.05%	+19 B 🔺
CDN Bundle (incl. Replay, Logs, Metrics)	68.5 kB	+0.03%	+17 B 🔺
CDN Bundle (incl. Tracing, Replay)	80.02 kB	+0.03%	+19 B 🔺
CDN Bundle (incl. Tracing, Replay, Logs, Metrics)	81.06 kB	+0.03%	+18 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback)	85.56 kB	+0.02%	+15 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics)	86.59 kB	+0.02%	+16 B 🔺
CDN Bundle - uncompressed	82.72 kB	+0.07%	+54 B 🔺
CDN Bundle (incl. Tracing) - uncompressed	127.86 kB	+0.05%	+54 B 🔺
CDN Bundle (incl. Logs, Metrics) - uncompressed	86.86 kB	+0.07%	+54 B 🔺
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed	131.27 kB	+0.05%	+54 B 🔺
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed	209.84 kB	+0.03%	+54 B 🔺
CDN Bundle (incl. Tracing, Replay) - uncompressed	244.74 kB	+0.03%	+54 B 🔺
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed	248.13 kB	+0.03%	+54 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	257.65 kB	+0.03%	+54 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed	261.04 kB	+0.03%	+54 B 🔺
@sentry/nextjs (client)	46.9 kB	+0.02%	+7 B 🔺
@sentry/sveltekit (client)	42.62 kB	+0.02%	+7 B 🔺
@sentry/node-core	55.77 kB	+0.04%	+17 B 🔺
@sentry/node	172.41 kB	-0.2%	-338 B 🔽
@sentry/node - without tracing	96.05 kB	+0.05%	+40 B 🔺
@sentry/aws-serverless	112.85 kB	+0.07%	+77 B 🔺

View base workflow run

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[github-actions]

node-overhead report 🧳

Note: This is a synthetic benchmark with a minimal express app and does not necessarily reflect the real-world performance impact in an application.

Scenario	Requests/s	% of Baseline	Prev. Requests/s	Change %
GET Baseline	11,465	-	9,471	+21%
GET With Sentry	1,889	16%	1,653	+14%
GET With Sentry (error only)	7,587	66%	5,960	+27%
POST Baseline	1,146	-	1,198	-4%
POST With Sentry	573	50%	583	-2%
POST With Sentry (error only)	1,002	87%	1,047	-4%
MYSQL Baseline	3,964	-	3,251	+22%
MYSQL With Sentry	488	12%	468	+4%
MYSQL With Sentry (error only)	3,236	82%	2,633	+23%

View base workflow run