[4/4] Move workbench code-block styles to Tailwind - #3310

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[4/4] Move workbench code-block styles to Tailwind#3310
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@mitul-smitul-s commented Aug 3, 2026•
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Description

  • Replace the static content-visibility and intrinsic-size inline styles on workbench code blocks with Tailwind arbitrary-property utilities.
  • Preserve consumer-provided style overrides.

Stack

  1. Shared UI components
  2. Trace viewer
  3. Workflow web/graph
  4. This PR — workbench code block

Merge in order from 1 to 4.

How did you test your changes?

  • Biome check on the changed component — no errors
  • A recursive workbench build was blocked by the VM's Cargo 1.83 lacking edition2024 support for @workflow/swc-plugin.
  • A direct workbench build was consequently blocked by the unavailable generated workflow/dist/next.cjs dependency.

PR Checklist - Required to merge

  • 📦 pnpm changeset --empty was run for this workbench-only PR
  • 🔒 DCO sign-off passes (git commit --signoff)
  • 📝 Ping @vercel/workflow in a comment once the PR is ready, and the above checklist is complete
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Move workbench code-block styles to Tailwind
523ff91
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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🦋 Changeset detected

Latest commit: b5e18c8

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages
NameType
@workflow/web-sharedPatch
@workflow/webPatch
@workflow/cliPatch
@workflow/nitroPatch
workflowPatch
@workflow/world-testingPatch
@workflow/nuxtPatch
@workflow/corePatch
@workflow/buildersPatch
@workflow/nextPatch
@workflow/vitestPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

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The latest updates on your projects. Learn more about Vercel for GitHub.

ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreviewAug 3, 2026 9:01pm
example-nextjs-workflow-webpackReadyReadyPreviewAug 3, 2026 9:01pm
example-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-astro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-express-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-fastify-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-hono-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nestjs-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nitro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nuxt-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-sveltekit-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-tanstack-start-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-vite-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workflow-docsReadyReadyPreview, v0Aug 3, 2026 9:01pm
workflow-swc-playgroundReadyReadyPreviewAug 3, 2026 9:01pm
workflow-tarballsReadyReadyPreviewAug 3, 2026 9:01pm
workflow-webReadyReadyPreviewAug 3, 2026 9:01pm

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🧪 E2E Test Results

❌ Some tests failed

❌ Failed E2E Tests

▲ Vercel Production (2 failed)

nextjs-turbopack (1 failed):

  • pages router sleepingWorkflow via pages router

vite (1 failed):

  • fibonacciWorkflow - recursive workflow composition via start() | wrun_41KZ4QC80A0GTAHZ13JJ3DWF5M | 🔍 observability

💻 Local Development (1 failed)

sveltekit-stable (1 failed):

  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB

📋 Other (1 failed)

e2e-local-prod-nest-stable (1 failed):

  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB

vercel-multi-region (1 failed)

nextjs-turbopack (1 failed):

  • multi-region (world-vercel) implicit region: region-pinned routes without a region option /api/e2e-region-implicit/fra1 mints a run tagged with its VERCEL_REGION

E2E Test Summary

Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145322391694
❌ 💻 Local Development162012271848
✅ 📦 Local Production162102271848
✅ 🐘 Local Postgres162102271848
✅ 🪟 Windows15400154
❌ 📋 Other101912121232
❌ vercel-multi-region261027
Total7514511328651
Details by Category

❌ ▲ Vercel Production

AppPassedFailedSkipped
✅ astro126028
✅ example126028
✅ express126028
✅ fastify126028
✅ hono126028
❌ nextjs-turbopack15013
✅ nextjs-webpack15103
✅ nitro126028
✅ nuxt126028
✅ sveltekit14509
❌ vite125128

❌ 💻 Local Development

AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
❌ sveltekit-stable14617
✅ vite-stable128026

✅ 📦 Local Production

AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026

✅ 🐘 Local Postgres

AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026

✅ 🪟 Windows

AppPassedFailedSkipped
✅ nextjs-turbopack15400

❌ 📋 Other

AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128026
✅ e2e-local-dev-tanstack-start-128026
✅ e2e-local-postgres-nest-stable128026
✅ e2e-local-postgres-tanstack-start-128026
❌ e2e-local-prod-nest-stable127126
✅ e2e-local-prod-tanstack-start-128026
✅ e2e-vercel-prod-nest126028
✅ e2e-vercel-prod-tanstack-start126028

❌ vercel-multi-region

AppPassedFailedSkipped
❌ nextjs-turbopack2610

📋 View full workflow run

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📊 Workflow Benchmarks

commit b5e18c8 · Mon, 03 Aug 2026 21:22:26 GMT · run logs

Backend: vercel · app: nextjs-turbopack

MetricScenarioBest (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstep1302 (+575%) 🔻1455 🔴 (+43%) 🔻1523 🔴 (+44%) 🔻1827 🔴 (+44%) 🔻30
TTFSstream1306 (+507%) 🔻1373 🔴 (+31%) 🔻1394 🔴 (+32%) 🔻1470 🔴 (±0%)30
TTFShook + stream1415 (+268%) 🔻1801 🔴 (+44%) 🔻1898 🔴 (+48%) 🔻2072 🔴 (+47%) 🔻30
STSO1020 steps (inline)193 (+10%)494 (±0%)569 (+3.6%)741 (-40%) 💚1016
STSO1020 steps (queue-hop)2480 (+56%) 🔻3298 (-89%) 💚3298 (-97%) 💚3298 (-97%) 💚3
WO1020 steps438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚1
SLstream latency133 (+55%) 🔻198 🔴 (+20%) 🔻209 🔴 (+6.6%)372 🔴 (+14%)30
SOstream overhead (text)142 (+11%)197 (-95%) 💚207 (-99%) 💚232 (-100%) 💚30
SOstream overhead (structured)146 (+6.6%)217 (-50%) 💚241 (-98%) 💚459 (-99%) 💚30
📈 STSO distribution vs main (inline / queue-hop histograms)

1020 steps (inline)

Cumulative STSO time: main 695511ms → this run 427879ms (Δ -267632ms, -38%)

 150-200 ms ┃ main 6 this 1 -5
200-250 ms ████████┃ main 56 this 66 +10
250-300 ms ███████████████░┃ main 106 this 123 +17
300-350 ms ██████████████████┃█ main 145 this 139 -6
350-400 ms ███████████████┃████ main 141 this 112 -29
400-450 ms ██████████████████████░┃ main 161 this 172 +11
450-500 ms █████████████████████┃ main 155 this 161 +6
500-550 ms ███████████████┃████ main 142 this 112 -30
550-600 ms ███████░┃ main 47 this 62 +15
600-650 ms ███░┃ main 18 this 38 +20
650-700 ms █┃ main 7 this 12 +5
700-750 ms ┃ main 8 this 9 +1
750-800 ms ┃ main 3 this 2 -1
800-850 ms ┃ main 4 this 3 -1
900-950 ms ┃ main 1 this 1 +0
1000-1050 ms ┃ main 1 this 0 -1
1050-1100 ms ┃ main 0 this 1 +1
1150-1200 ms ┃ main 1 this 1 +0
1200-1250 ms ┃ main 1 this 0 -1
1250-1300 ms ┃ main 1 this 0 -1
1900-1950 ms ┃ main 0 this 1 +1
4000-4050 ms ┃ main 1 this 0 -1
8600-8650 ms ┃ main 1 this 0 -1
9850-9900 ms ┃ main 1 this 0 -1
12450-12500 ms ┃ main 1 this 0 -1
15900-15950 ms ┃ main 1 this 0 -1
35150-35200 ms ┃ main 1 this 0 -1
35200-35250 ms ┃ main 1 this 0 -1
48400-48450 ms ┃ main 1 this 0 -1
106950-107000 ms ┃ main 1 this 0 -1

1020 steps (queue-hop)

Cumulative STSO time: main 161965ms → this run 9062ms (Δ -152903ms, -94%)

 0-20000 ms █████████████████┃██████ main 4 this 3 -1
20000-40000 ms ┃█████ main 1 this 0 -1
120000-140000 ms ┃█████ main 1 this 0 -1
ℹ️ Metric definitions & methodology

The collapsed STSO distribution section above buckets every step gap of the sequential-steps run (not a sampled window), split by whether the step ending the gap ran inline — in the same warm process as the step before it, so the gap is pure framework overhead — or after a queue-hop — the first step of a fresh process, which pays queue dispatch, client reinit and event-log replay. Bars overlay the two runs: █ is main, ┃ marks where this run lands, ░ bridges the gap when this run has more samples in a bucket.

Best/P75/P90/P99 deltas compare against the most recent benchmark run on main at the time of this run. 🔻 flags a delta worse than +15%, 💚 one better than −15%.

Metrics — TTFS: time to first step body (in-deployment start() → first step body, deployment clocks) · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (whole-run time outside step bodies, in-deployment anchored) · SL: stream latency (in-deployment write → read propagation, readAt - writtenAt) · SO: stream overhead (end-to-end write+consume time beyond the modelled generation window)

Scenarios — step: one trivial no-op step, no stream; no hooks, so the run stays in turbo mode (in-process fast path) · stream: one streaming step; no hooks, so the run stays in turbo mode (in-process fast path) · hook + stream: registers a hook before one step, which exits turbo mode (dispatch path) · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges, and WO is the whole-run overhead outside step bodies · stream latency: parallel reader/writer steps on a dedicated stream; SL is the in-deployment write->read propagation (readAt - writtenAt) · stream overhead (text): writer streams 300 variable-length text token deltas paced at 100/s for 3s (a haiku-size LLM's token throughput) while a parallel reader drains the whole stream; SO is the end-to-end write+consume time beyond the 3s generation window (overhead/backpressure) · stream overhead (structured): same workload as stream overhead (text), but each delta is an AI-SDK-style structured object ({ type: 'text-delta', id, text }) instead of a raw string, so the SO gap vs the text scenario is the added serialization cost

🔴 marks a percentile over its target (within target is left unmarked). Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · SO 250/500/1000

All metrics are measured from deployment-side timestamps only. Runs are triggered by an in-deployment route that stamps the anchor (clientStart) right before start(), so the CI runner’s request and its path through api.vercel.com sit outside every measured window. TTFS = in-deployment start() → first step body (turbo uses the in-process fast path, non-turbo the dispatch path), and includes the VQS dispatch hop plus any /flow cold start. STSO/WO are measured between step bodies on the deployment. SL is measured inside the workflow (parallel reader/writer steps), so it no longer includes the api.vercel.com read path.

Cold starts are kept in the numbers on purpose — they are part of real bursty-workload latency. The workbench deployment cold-starts the /flow invocation for a large fraction of runs, inflating P75+; the Best column shows the fastest (warm-start) sample for comparison.

@cursoragent
Merge remote-tracking branch 'origin/main' into c+ms/workbench-code-b…
f05df1a
…lock-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
@cursorcursorBot mentioned this pull request Aug 3, 2026
Merged
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@cursoragent
Merge remote-tracking branch 'origin/c+ms/workflow-web-tailwind-86b1'…
b5e18c8
… into c+ms/workbench-code-block-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
@cursorcursorBot changed the title Move workbench code-block styles to Tailwind[4/4] Move workbench code-block styles to TailwindAug 3, 2026
@cursor
cursorBot changed the base branch from main to c+ms/workflow-web-tailwind-86b1August 3, 2026 20:59
This was referenced Aug 3, 2026
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@mitul-s@cursoragent
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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[4/4] Move workbench code-block styles to Tailwind - #3310
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mitul-s wants to merge 3 commits into
c+ms/workflow-web-tailwind-86b1from 
c+ms/workbench-code-block-tailwind-86b1
Closed
[4/4] Move workbench code-block styles to Tailwind#3310
mitul-s wants to merge 3 commits into
c+ms/workflow-web-tailwind-86b1from 
c+ms/workbench-code-block-tailwind-86b1
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@mitul-s
@mitul-smitul-s
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Aug 3, 2026•

edited by cursor
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Description
  • Replace the static content-visibility and intrinsic-size inline styles on workbench code blocks with Tailwind arbitrary-property utilities.
  • Preserve consumer-provided style overrides.
Stack
  1. Shared UI components
  2. Trace viewer
  3. Workflow web/graph
  4. This PR — workbench code block
Merge in order from 1 to 4.
How did you test your changes?
  • Biome check on the changed component — no errors
  • A recursive workbench build was blocked by the VM's Cargo 1.83 lacking edition2024 support for @workflow/swc-plugin.
  • A direct workbench build was consequently blocked by the unavailable generated workflow/dist/next.cjs dependency.
PR Checklist - Required to merge
  •  📦 pnpm changeset --empty was run for this workbench-only PR
  •  🔒 DCO sign-off passes (git commit --signoff)
  •  📝 Ping @vercel/workflow in a comment once the PR is ready, and the above checklist is complete
Open in WebOpen in Cursor
@cursoragent
Move workbench code-block styles to Tailwind
523ff91
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
@changeset-bot
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Aug 3, 2026•

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🦋 Changeset detected
Latest commit: b5e18c8
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/web-sharedPatch
@workflow/webPatch
@workflow/cliPatch
@workflow/nitroPatch
workflowPatch
@workflow/world-testingPatch
@workflow/nuxtPatch
@workflow/corePatch
@workflow/buildersPatch
@workflow/nextPatch
@workflow/vitestPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
@vercel
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Aug 3, 2026•

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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreviewAug 3, 2026 9:01pm
example-nextjs-workflow-webpackReadyReadyPreviewAug 3, 2026 9:01pm
example-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-astro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-express-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-fastify-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-hono-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nestjs-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nitro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nuxt-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-sveltekit-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-tanstack-start-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-vite-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workflow-docsReadyReadyPreview, v0Aug 3, 2026 9:01pm
workflow-swc-playgroundReadyReadyPreviewAug 3, 2026 9:01pm
workflow-tarballsReadyReadyPreviewAug 3, 2026 9:01pm
workflow-webReadyReadyPreviewAug 3, 2026 9:01pm
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🧪 E2E Test Results
❌ Some tests failed
❌ Failed E2E Tests
▲ Vercel Production (2 failed)
nextjs-turbopack (1 failed):
  • pages router sleepingWorkflow via pages router
vite (1 failed):
  • fibonacciWorkflow - recursive workflow composition via start() | wrun_41KZ4QC80A0GTAHZ13JJ3DWF5M | 🔍 observability
💻 Local Development (1 failed)
sveltekit-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
📋 Other (1 failed)
e2e-local-prod-nest-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
vercel-multi-region (1 failed)
nextjs-turbopack (1 failed):
  • multi-region (world-vercel) implicit region: region-pinned routes without a region option /api/e2e-region-implicit/fra1 mints a run tagged with its VERCEL_REGION
E2E Test Summary
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145322391694
❌ 💻 Local Development162012271848
✅ 📦 Local Production162102271848
✅ 🐘 Local Postgres162102271848
✅ 🪟 Windows15400154
❌ 📋 Other101912121232
❌ vercel-multi-region261027
Total7514511328651
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126028
✅ example126028
✅ express126028
✅ fastify126028
✅ hono126028
❌ nextjs-turbopack15013
✅ nextjs-webpack15103
✅ nitro126028
✅ nuxt126028
✅ sveltekit14509
❌ vite125128
❌ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
❌ sveltekit-stable14617
✅ vite-stable128026
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15400
❌ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128026
✅ e2e-local-dev-tanstack-start-128026
✅ e2e-local-postgres-nest-stable128026
✅ e2e-local-postgres-tanstack-start-128026
❌ e2e-local-prod-nest-stable127126
✅ e2e-local-prod-tanstack-start-128026
✅ e2e-vercel-prod-nest126028
✅ e2e-vercel-prod-tanstack-start126028
❌ vercel-multi-region
AppPassedFailedSkipped
❌ nextjs-turbopack2610
📋 View full workflow run
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📊 Workflow Benchmarks
commit b5e18c8 · Mon, 03 Aug 2026 21:22:26 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioBest (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstep1302 (+575%) 🔻1455 🔴 (+43%) 🔻1523 🔴 (+44%) 🔻1827 🔴 (+44%) 🔻30
TTFSstream1306 (+507%) 🔻1373 🔴 (+31%) 🔻1394 🔴 (+32%) 🔻1470 🔴 (±0%)30
TTFShook + stream1415 (+268%) 🔻1801 🔴 (+44%) 🔻1898 🔴 (+48%) 🔻2072 🔴 (+47%) 🔻30
STSO1020 steps (inline)193 (+10%)494 (±0%)569 (+3.6%)741 (-40%) 💚1016
STSO1020 steps (queue-hop)2480 (+56%) 🔻3298 (-89%) 💚3298 (-97%) 💚3298 (-97%) 💚3
WO1020 steps438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚1
SLstream latency133 (+55%) 🔻198 🔴 (+20%) 🔻209 🔴 (+6.6%)372 🔴 (+14%)30
SOstream overhead (text)142 (+11%)197 (-95%) 💚207 (-99%) 💚232 (-100%) 💚30
SOstream overhead (structured)146 (+6.6%)217 (-50%) 💚241 (-98%) 💚459 (-99%) 💚30
📈 STSO distribution vs main (inline / queue-hop histograms)
1020 steps (inline)
Cumulative STSO time: main 695511ms → this run 427879ms (Δ -267632ms, -38%)
 150-200 ms ┃ main 6 this 1 -5
200-250 ms ████████┃ main 56 this 66 +10
250-300 ms ███████████████░┃ main 106 this 123 +17
300-350 ms ██████████████████┃█ main 145 this 139 -6
350-400 ms ███████████████┃████ main 141 this 112 -29
400-450 ms ██████████████████████░┃ main 161 this 172 +11
450-500 ms █████████████████████┃ main 155 this 161 +6
500-550 ms ███████████████┃████ main 142 this 112 -30
550-600 ms ███████░┃ main 47 this 62 +15
600-650 ms ███░┃ main 18 this 38 +20
650-700 ms █┃ main 7 this 12 +5
700-750 ms ┃ main 8 this 9 +1
750-800 ms ┃ main 3 this 2 -1
800-850 ms ┃ main 4 this 3 -1
900-950 ms ┃ main 1 this 1 +0
1000-1050 ms ┃ main 1 this 0 -1
1050-1100 ms ┃ main 0 this 1 +1
1150-1200 ms ┃ main 1 this 1 +0
1200-1250 ms ┃ main 1 this 0 -1
1250-1300 ms ┃ main 1 this 0 -1
1900-1950 ms ┃ main 0 this 1 +1
4000-4050 ms ┃ main 1 this 0 -1
8600-8650 ms ┃ main 1 this 0 -1
9850-9900 ms ┃ main 1 this 0 -1
12450-12500 ms ┃ main 1 this 0 -1
15900-15950 ms ┃ main 1 this 0 -1
35150-35200 ms ┃ main 1 this 0 -1
35200-35250 ms ┃ main 1 this 0 -1
48400-48450 ms ┃ main 1 this 0 -1
106950-107000 ms ┃ main 1 this 0 -1

1020 steps (queue-hop)
Cumulative STSO time: main 161965ms → this run 9062ms (Δ -152903ms, -94%)
 0-20000 ms █████████████████┃██████ main 4 this 3 -1
20000-40000 ms ┃█████ main 1 this 0 -1
120000-140000 ms ┃█████ main 1 this 0 -1

ℹ️ Metric definitions & methodology
The collapsed STSO distribution section above buckets every step gap of the sequential-steps run (not a sampled window), split by whether the step ending the gap ran inline — in the same warm process as the step before it, so the gap is pure framework overhead — or after a queue-hop — the first step of a fresh process, which pays queue dispatch, client reinit and event-log replay. Bars overlay the two runs: █ is main, ┃ marks where this run lands, ░ bridges the gap when this run has more samples in a bucket.
Best/P75/P90/P99 deltas compare against the most recent benchmark run on main at the time of this run. 🔻 flags a delta worse than +15%, 💚 one better than −15%.
Metrics — TTFS: time to first step body (in-deployment start() → first step body, deployment clocks) · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (whole-run time outside step bodies, in-deployment anchored) · SL: stream latency (in-deployment write → read propagation, readAt - writtenAt) · SO: stream overhead (end-to-end write+consume time beyond the modelled generation window)
Scenarios — step: one trivial no-op step, no stream; no hooks, so the run stays in turbo mode (in-process fast path) · stream: one streaming step; no hooks, so the run stays in turbo mode (in-process fast path) · hook + stream: registers a hook before one step, which exits turbo mode (dispatch path) · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges, and WO is the whole-run overhead outside step bodies · stream latency: parallel reader/writer steps on a dedicated stream; SL is the in-deployment write->read propagation (readAt - writtenAt) · stream overhead (text): writer streams 300 variable-length text token deltas paced at 100/s for 3s (a haiku-size LLM's token throughput) while a parallel reader drains the whole stream; SO is the end-to-end write+consume time beyond the 3s generation window (overhead/backpressure) · stream overhead (structured): same workload as stream overhead (text), but each delta is an AI-SDK-style structured object ({ type: 'text-delta', id, text }) instead of a raw string, so the SO gap vs the text scenario is the added serialization cost
🔴 marks a percentile over its target (within target is left unmarked). Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · SO 250/500/1000
All metrics are measured from deployment-side timestamps only. Runs are triggered by an in-deployment route that stamps the anchor (clientStart) right before start(), so the CI runner’s request and its path through api.vercel.com sit outside every measured window. TTFS = in-deployment start() → first step body (turbo uses the in-process fast path, non-turbo the dispatch path), and includes the VQS dispatch hop plus any /flow cold start. STSO/WO are measured between step bodies on the deployment. SL is measured inside the workflow (parallel reader/writer steps), so it no longer includes the api.vercel.com read path.
Cold starts are kept in the numbers on purpose — they are part of real bursty-workload latency. The workbench deployment cold-starts the /flow invocation for a large fraction of runs, inflating P75+; the Best column shows the fastest (warm-start) sample for comparison.
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[4/4] Move workbench code-block styles to Tailwind - #3310
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Description
  • Replace the static content-visibility and intrinsic-size inline styles on workbench code blocks with Tailwind arbitrary-property utilities.
  • Preserve consumer-provided style overrides.
Stack
  1. Shared UI components
  2. Trace viewer
  3. Workflow web/graph
  4. This PR — workbench code block
Merge in order from 1 to 4.
How did you test your changes?
  • Biome check on the changed component — no errors
  • A recursive workbench build was blocked by the VM's Cargo 1.83 lacking edition2024 support for @workflow/swc-plugin.
  • A direct workbench build was consequently blocked by the unavailable generated workflow/dist/next.cjs dependency.
PR Checklist - Required to merge
  •  📦 pnpm changeset --empty was run for this workbench-only PR
  •  🔒 DCO sign-off passes (git commit --signoff)
  •  📝 Ping @vercel/workflow in a comment once the PR is ready, and the above checklist is complete
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Move workbench code-block styles to Tailwind
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Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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🦋 Changeset detected
Latest commit: b5e18c8
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/web-sharedPatch
@workflow/webPatch
@workflow/cliPatch
@workflow/nitroPatch
workflowPatch
@workflow/world-testingPatch
@workflow/nuxtPatch
@workflow/corePatch
@workflow/buildersPatch
@workflow/nextPatch
@workflow/vitestPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreviewAug 3, 2026 9:01pm
example-nextjs-workflow-webpackReadyReadyPreviewAug 3, 2026 9:01pm
example-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-astro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-express-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-fastify-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-hono-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nestjs-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nitro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nuxt-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-sveltekit-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-tanstack-start-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-vite-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workflow-docsReadyReadyPreview, v0Aug 3, 2026 9:01pm
workflow-swc-playgroundReadyReadyPreviewAug 3, 2026 9:01pm
workflow-tarballsReadyReadyPreviewAug 3, 2026 9:01pm
workflow-webReadyReadyPreviewAug 3, 2026 9:01pm
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🧪 E2E Test Results
❌ Some tests failed
❌ Failed E2E Tests
▲ Vercel Production (2 failed)
nextjs-turbopack (1 failed):
  • pages router sleepingWorkflow via pages router
vite (1 failed):
  • fibonacciWorkflow - recursive workflow composition via start() | wrun_41KZ4QC80A0GTAHZ13JJ3DWF5M | 🔍 observability
💻 Local Development (1 failed)
sveltekit-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
📋 Other (1 failed)
e2e-local-prod-nest-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
vercel-multi-region (1 failed)
nextjs-turbopack (1 failed):
  • multi-region (world-vercel) implicit region: region-pinned routes without a region option /api/e2e-region-implicit/fra1 mints a run tagged with its VERCEL_REGION
E2E Test Summary
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145322391694
❌ 💻 Local Development162012271848
✅ 📦 Local Production162102271848
✅ 🐘 Local Postgres162102271848
✅ 🪟 Windows15400154
❌ 📋 Other101912121232
❌ vercel-multi-region261027
Total7514511328651
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126028
✅ example126028
✅ express126028
✅ fastify126028
✅ hono126028
❌ nextjs-turbopack15013
✅ nextjs-webpack15103
✅ nitro126028
✅ nuxt126028
✅ sveltekit14509
❌ vite125128
❌ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
❌ sveltekit-stable14617
✅ vite-stable128026
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15400
❌ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128026
✅ e2e-local-dev-tanstack-start-128026
✅ e2e-local-postgres-nest-stable128026
✅ e2e-local-postgres-tanstack-start-128026
❌ e2e-local-prod-nest-stable127126
✅ e2e-local-prod-tanstack-start-128026
✅ e2e-vercel-prod-nest126028
✅ e2e-vercel-prod-tanstack-start126028
❌ vercel-multi-region
AppPassedFailedSkipped
❌ nextjs-turbopack2610
📋 View full workflow run
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📊 Workflow Benchmarks
commit b5e18c8 · Mon, 03 Aug 2026 21:22:26 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioBest (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstep1302 (+575%) 🔻1455 🔴 (+43%) 🔻1523 🔴 (+44%) 🔻1827 🔴 (+44%) 🔻30
TTFSstream1306 (+507%) 🔻1373 🔴 (+31%) 🔻1394 🔴 (+32%) 🔻1470 🔴 (±0%)30
TTFShook + stream1415 (+268%) 🔻1801 🔴 (+44%) 🔻1898 🔴 (+48%) 🔻2072 🔴 (+47%) 🔻30
STSO1020 steps (inline)193 (+10%)494 (±0%)569 (+3.6%)741 (-40%) 💚1016
STSO1020 steps (queue-hop)2480 (+56%) 🔻3298 (-89%) 💚3298 (-97%) 💚3298 (-97%) 💚3
WO1020 steps438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚1
SLstream latency133 (+55%) 🔻198 🔴 (+20%) 🔻209 🔴 (+6.6%)372 🔴 (+14%)30
SOstream overhead (text)142 (+11%)197 (-95%) 💚207 (-99%) 💚232 (-100%) 💚30
SOstream overhead (structured)146 (+6.6%)217 (-50%) 💚241 (-98%) 💚459 (-99%) 💚30
📈 STSO distribution vs main (inline / queue-hop histograms)
1020 steps (inline)
Cumulative STSO time: main 695511ms → this run 427879ms (Δ -267632ms, -38%)
 150-200 ms ┃ main 6 this 1 -5
200-250 ms ████████┃ main 56 this 66 +10
250-300 ms ███████████████░┃ main 106 this 123 +17
300-350 ms ██████████████████┃█ main 145 this 139 -6
350-400 ms ███████████████┃████ main 141 this 112 -29
400-450 ms ██████████████████████░┃ main 161 this 172 +11
450-500 ms █████████████████████┃ main 155 this 161 +6
500-550 ms ███████████████┃████ main 142 this 112 -30
550-600 ms ███████░┃ main 47 this 62 +15
600-650 ms ███░┃ main 18 this 38 +20
650-700 ms █┃ main 7 this 12 +5
700-750 ms ┃ main 8 this 9 +1
750-800 ms ┃ main 3 this 2 -1
800-850 ms ┃ main 4 this 3 -1
900-950 ms ┃ main 1 this 1 +0
1000-1050 ms ┃ main 1 this 0 -1
1050-1100 ms ┃ main 0 this 1 +1
1150-1200 ms ┃ main 1 this 1 +0
1200-1250 ms ┃ main 1 this 0 -1
1250-1300 ms ┃ main 1 this 0 -1
1900-1950 ms ┃ main 0 this 1 +1
4000-4050 ms ┃ main 1 this 0 -1
8600-8650 ms ┃ main 1 this 0 -1
9850-9900 ms ┃ main 1 this 0 -1
12450-12500 ms ┃ main 1 this 0 -1
15900-15950 ms ┃ main 1 this 0 -1
35150-35200 ms ┃ main 1 this 0 -1
35200-35250 ms ┃ main 1 this 0 -1
48400-48450 ms ┃ main 1 this 0 -1
106950-107000 ms ┃ main 1 this 0 -1

1020 steps (queue-hop)
Cumulative STSO time: main 161965ms → this run 9062ms (Δ -152903ms, -94%)
 0-20000 ms █████████████████┃██████ main 4 this 3 -1
20000-40000 ms ┃█████ main 1 this 0 -1
120000-140000 ms ┃█████ main 1 this 0 -1

ℹ️ Metric definitions & methodology
The collapsed STSO distribution section above buckets every step gap of the sequential-steps run (not a sampled window), split by whether the step ending the gap ran inline — in the same warm process as the step before it, so the gap is pure framework overhead — or after a queue-hop — the first step of a fresh process, which pays queue dispatch, client reinit and event-log replay. Bars overlay the two runs: █ is main, ┃ marks where this run lands, ░ bridges the gap when this run has more samples in a bucket.
Best/P75/P90/P99 deltas compare against the most recent benchmark run on main at the time of this run. 🔻 flags a delta worse than +15%, 💚 one better than −15%.
Metrics — TTFS: time to first step body (in-deployment start() → first step body, deployment clocks) · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (whole-run time outside step bodies, in-deployment anchored) · SL: stream latency (in-deployment write → read propagation, readAt - writtenAt) · SO: stream overhead (end-to-end write+consume time beyond the modelled generation window)
Scenarios — step: one trivial no-op step, no stream; no hooks, so the run stays in turbo mode (in-process fast path) · stream: one streaming step; no hooks, so the run stays in turbo mode (in-process fast path) · hook + stream: registers a hook before one step, which exits turbo mode (dispatch path) · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges, and WO is the whole-run overhead outside step bodies · stream latency: parallel reader/writer steps on a dedicated stream; SL is the in-deployment write->read propagation (readAt - writtenAt) · stream overhead (text): writer streams 300 variable-length text token deltas paced at 100/s for 3s (a haiku-size LLM's token throughput) while a parallel reader drains the whole stream; SO is the end-to-end write+consume time beyond the 3s generation window (overhead/backpressure) · stream overhead (structured): same workload as stream overhead (text), but each delta is an AI-SDK-style structured object ({ type: 'text-delta', id, text }) instead of a raw string, so the SO gap vs the text scenario is the added serialization cost
🔴 marks a percentile over its target (within target is left unmarked). Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · SO 250/500/1000
All metrics are measured from deployment-side timestamps only. Runs are triggered by an in-deployment route that stamps the anchor (clientStart) right before start(), so the CI runner’s request and its path through api.vercel.com sit outside every measured window. TTFS = in-deployment start() → first step body (turbo uses the in-process fast path, non-turbo the dispatch path), and includes the VQS dispatch hop plus any /flow cold start. STSO/WO are measured between step bodies on the deployment. SL is measured inside the workflow (parallel reader/writer steps), so it no longer includes the api.vercel.com read path.
Cold starts are kept in the numbers on purpose — they are part of real bursty-workload latency. The workbench deployment cold-starts the /flow invocation for a large fraction of runs, inflating P75+; the Best column shows the fastest (warm-start) sample for comparison.
@cursoragent
Merge remote-tracking branch 'origin/main' into c+ms/workbench-code-b…
f05df1a
…lock-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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mentioned this pull request
Aug 3, 2026
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Merge remote-tracking branch 'origin/c+ms/workflow-web-tailwind-86b1'…
b5e18c8
… into c+ms/workbench-code-block-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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Move workbench code-block styles to Tailwind[4/4] Move workbench code-block styles to TailwindAug 3, 2026
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
[4/4] Move workbench code-block styles to Tailwind - #3310
Closed
mitul-s wants to merge 3 commits into
c+ms/workflow-web-tailwind-86b1from 
c+ms/workbench-code-block-tailwind-86b1
Closed
[4/4] Move workbench code-block styles to Tailwind#3310
mitul-s wants to merge 3 commits into
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@mitul-smitul-s
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Aug 3, 2026•

edited by cursor
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Description
  • Replace the static content-visibility and intrinsic-size inline styles on workbench code blocks with Tailwind arbitrary-property utilities.
  • Preserve consumer-provided style overrides.
Stack
  1. Shared UI components
  2. Trace viewer
  3. Workflow web/graph
  4. This PR — workbench code block
Merge in order from 1 to 4.
How did you test your changes?
  • Biome check on the changed component — no errors
  • A recursive workbench build was blocked by the VM's Cargo 1.83 lacking edition2024 support for @workflow/swc-plugin.
  • A direct workbench build was consequently blocked by the unavailable generated workflow/dist/next.cjs dependency.
PR Checklist - Required to merge
  •  📦 pnpm changeset --empty was run for this workbench-only PR
  •  🔒 DCO sign-off passes (git commit --signoff)
  •  📝 Ping @vercel/workflow in a comment once the PR is ready, and the above checklist is complete
Open in WebOpen in Cursor
@cursoragent
Move workbench code-block styles to Tailwind
523ff91
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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🦋 Changeset detected
Latest commit: b5e18c8
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/web-sharedPatch
@workflow/webPatch
@workflow/cliPatch
@workflow/nitroPatch
workflowPatch
@workflow/world-testingPatch
@workflow/nuxtPatch
@workflow/corePatch
@workflow/buildersPatch
@workflow/nextPatch
@workflow/vitestPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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Aug 3, 2026•

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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreviewAug 3, 2026 9:01pm
example-nextjs-workflow-webpackReadyReadyPreviewAug 3, 2026 9:01pm
example-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-astro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-express-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-fastify-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-hono-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nestjs-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nitro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nuxt-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-sveltekit-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-tanstack-start-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-vite-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workflow-docsReadyReadyPreview, v0Aug 3, 2026 9:01pm
workflow-swc-playgroundReadyReadyPreviewAug 3, 2026 9:01pm
workflow-tarballsReadyReadyPreviewAug 3, 2026 9:01pm
workflow-webReadyReadyPreviewAug 3, 2026 9:01pm
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🧪 E2E Test Results
❌ Some tests failed
❌ Failed E2E Tests
▲ Vercel Production (2 failed)
nextjs-turbopack (1 failed):
  • pages router sleepingWorkflow via pages router
vite (1 failed):
  • fibonacciWorkflow - recursive workflow composition via start() | wrun_41KZ4QC80A0GTAHZ13JJ3DWF5M | 🔍 observability
💻 Local Development (1 failed)
sveltekit-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
📋 Other (1 failed)
e2e-local-prod-nest-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
vercel-multi-region (1 failed)
nextjs-turbopack (1 failed):
  • multi-region (world-vercel) implicit region: region-pinned routes without a region option /api/e2e-region-implicit/fra1 mints a run tagged with its VERCEL_REGION
E2E Test Summary
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145322391694
❌ 💻 Local Development162012271848
✅ 📦 Local Production162102271848
✅ 🐘 Local Postgres162102271848
✅ 🪟 Windows15400154
❌ 📋 Other101912121232
❌ vercel-multi-region261027
Total7514511328651
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126028
✅ example126028
✅ express126028
✅ fastify126028
✅ hono126028
❌ nextjs-turbopack15013
✅ nextjs-webpack15103
✅ nitro126028
✅ nuxt126028
✅ sveltekit14509
❌ vite125128
❌ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
❌ sveltekit-stable14617
✅ vite-stable128026
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15400
❌ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128026
✅ e2e-local-dev-tanstack-start-128026
✅ e2e-local-postgres-nest-stable128026
✅ e2e-local-postgres-tanstack-start-128026
❌ e2e-local-prod-nest-stable127126
✅ e2e-local-prod-tanstack-start-128026
✅ e2e-vercel-prod-nest126028
✅ e2e-vercel-prod-tanstack-start126028
❌ vercel-multi-region
AppPassedFailedSkipped
❌ nextjs-turbopack2610
📋 View full workflow run
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📊 Workflow Benchmarks
commit b5e18c8 · Mon, 03 Aug 2026 21:22:26 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioBest (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstep1302 (+575%) 🔻1455 🔴 (+43%) 🔻1523 🔴 (+44%) 🔻1827 🔴 (+44%) 🔻30
TTFSstream1306 (+507%) 🔻1373 🔴 (+31%) 🔻1394 🔴 (+32%) 🔻1470 🔴 (±0%)30
TTFShook + stream1415 (+268%) 🔻1801 🔴 (+44%) 🔻1898 🔴 (+48%) 🔻2072 🔴 (+47%) 🔻30
STSO1020 steps (inline)193 (+10%)494 (±0%)569 (+3.6%)741 (-40%) 💚1016
STSO1020 steps (queue-hop)2480 (+56%) 🔻3298 (-89%) 💚3298 (-97%) 💚3298 (-97%) 💚3
WO1020 steps438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚1
SLstream latency133 (+55%) 🔻198 🔴 (+20%) 🔻209 🔴 (+6.6%)372 🔴 (+14%)30
SOstream overhead (text)142 (+11%)197 (-95%) 💚207 (-99%) 💚232 (-100%) 💚30
SOstream overhead (structured)146 (+6.6%)217 (-50%) 💚241 (-98%) 💚459 (-99%) 💚30
📈 STSO distribution vs main (inline / queue-hop histograms)
1020 steps (inline)
Cumulative STSO time: main 695511ms → this run 427879ms (Δ -267632ms, -38%)
 150-200 ms ┃ main 6 this 1 -5
200-250 ms ████████┃ main 56 this 66 +10
250-300 ms ███████████████░┃ main 106 this 123 +17
300-350 ms ██████████████████┃█ main 145 this 139 -6
350-400 ms ███████████████┃████ main 141 this 112 -29
400-450 ms ██████████████████████░┃ main 161 this 172 +11
450-500 ms █████████████████████┃ main 155 this 161 +6
500-550 ms ███████████████┃████ main 142 this 112 -30
550-600 ms ███████░┃ main 47 this 62 +15
600-650 ms ███░┃ main 18 this 38 +20
650-700 ms █┃ main 7 this 12 +5
700-750 ms ┃ main 8 this 9 +1
750-800 ms ┃ main 3 this 2 -1
800-850 ms ┃ main 4 this 3 -1
900-950 ms ┃ main 1 this 1 +0
1000-1050 ms ┃ main 1 this 0 -1
1050-1100 ms ┃ main 0 this 1 +1
1150-1200 ms ┃ main 1 this 1 +0
1200-1250 ms ┃ main 1 this 0 -1
1250-1300 ms ┃ main 1 this 0 -1
1900-1950 ms ┃ main 0 this 1 +1
4000-4050 ms ┃ main 1 this 0 -1
8600-8650 ms ┃ main 1 this 0 -1
9850-9900 ms ┃ main 1 this 0 -1
12450-12500 ms ┃ main 1 this 0 -1
15900-15950 ms ┃ main 1 this 0 -1
35150-35200 ms ┃ main 1 this 0 -1
35200-35250 ms ┃ main 1 this 0 -1
48400-48450 ms ┃ main 1 this 0 -1
106950-107000 ms ┃ main 1 this 0 -1

1020 steps (queue-hop)
Cumulative STSO time: main 161965ms → this run 9062ms (Δ -152903ms, -94%)
 0-20000 ms █████████████████┃██████ main 4 this 3 -1
20000-40000 ms ┃█████ main 1 this 0 -1
120000-140000 ms ┃█████ main 1 this 0 -1

ℹ️ Metric definitions & methodology
The collapsed STSO distribution section above buckets every step gap of the sequential-steps run (not a sampled window), split by whether the step ending the gap ran inline — in the same warm process as the step before it, so the gap is pure framework overhead — or after a queue-hop — the first step of a fresh process, which pays queue dispatch, client reinit and event-log replay. Bars overlay the two runs: █ is main, ┃ marks where this run lands, ░ bridges the gap when this run has more samples in a bucket.
Best/P75/P90/P99 deltas compare against the most recent benchmark run on main at the time of this run. 🔻 flags a delta worse than +15%, 💚 one better than −15%.
Metrics — TTFS: time to first step body (in-deployment start() → first step body, deployment clocks) · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (whole-run time outside step bodies, in-deployment anchored) · SL: stream latency (in-deployment write → read propagation, readAt - writtenAt) · SO: stream overhead (end-to-end write+consume time beyond the modelled generation window)
Scenarios — step: one trivial no-op step, no stream; no hooks, so the run stays in turbo mode (in-process fast path) · stream: one streaming step; no hooks, so the run stays in turbo mode (in-process fast path) · hook + stream: registers a hook before one step, which exits turbo mode (dispatch path) · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges, and WO is the whole-run overhead outside step bodies · stream latency: parallel reader/writer steps on a dedicated stream; SL is the in-deployment write->read propagation (readAt - writtenAt) · stream overhead (text): writer streams 300 variable-length text token deltas paced at 100/s for 3s (a haiku-size LLM's token throughput) while a parallel reader drains the whole stream; SO is the end-to-end write+consume time beyond the 3s generation window (overhead/backpressure) · stream overhead (structured): same workload as stream overhead (text), but each delta is an AI-SDK-style structured object ({ type: 'text-delta', id, text }) instead of a raw string, so the SO gap vs the text scenario is the added serialization cost
🔴 marks a percentile over its target (within target is left unmarked). Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · SO 250/500/1000
All metrics are measured from deployment-side timestamps only. Runs are triggered by an in-deployment route that stamps the anchor (clientStart) right before start(), so the CI runner’s request and its path through api.vercel.com sit outside every measured window. TTFS = in-deployment start() → first step body (turbo uses the in-process fast path, non-turbo the dispatch path), and includes the VQS dispatch hop plus any /flow cold start. STSO/WO are measured between step bodies on the deployment. SL is measured inside the workflow (parallel reader/writer steps), so it no longer includes the api.vercel.com read path.
Cold starts are kept in the numbers on purpose — they are part of real bursty-workload latency. The workbench deployment cold-starts the /flow invocation for a large fraction of runs, inflating P75+; the Best column shows the fastest (warm-start) sample for comparison.
@cursoragent
Merge remote-tracking branch 'origin/main' into c+ms/workbench-code-b…
f05df1a
…lock-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
@cursorcursorBot
mentioned this pull request
Aug 3, 2026
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@cursoragent
Merge remote-tracking branch 'origin/c+ms/workflow-web-tailwind-86b1'…
b5e18c8
… into c+ms/workbench-code-block-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
@cursorcursorBot
changed the title
Move workbench code-block styles to Tailwind[4/4] Move workbench code-block styles to TailwindAug 3, 2026
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to
c+ms/workflow-web-tailwind-86b1August 3, 2026 20:59

This was referenced Aug 3, 2026
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closed this
Aug 3, 2026
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@mitul-s@cursoragent

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
[4/4] Move workbench code-block styles to Tailwind - #3310
Closed
mitul-s wants to merge 3 commits into
c+ms/workflow-web-tailwind-86b1from 
c+ms/workbench-code-block-tailwind-86b1
Closed
[4/4] Move workbench code-block styles to Tailwind#3310
mitul-s wants to merge 3 commits into
c+ms/workflow-web-tailwind-86b1from 
c+ms/workbench-code-block-tailwind-86b1
Conversation
@mitul-s
@mitul-smitul-s
commented
Aug 3, 2026•

edited by cursor
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Description
  • Replace the static content-visibility and intrinsic-size inline styles on workbench code blocks with Tailwind arbitrary-property utilities.
  • Preserve consumer-provided style overrides.
Stack
  1. Shared UI components
  2. Trace viewer
  3. Workflow web/graph
  4. This PR — workbench code block
Merge in order from 1 to 4.
How did you test your changes?
  • Biome check on the changed component — no errors
  • A recursive workbench build was blocked by the VM's Cargo 1.83 lacking edition2024 support for @workflow/swc-plugin.
  • A direct workbench build was consequently blocked by the unavailable generated workflow/dist/next.cjs dependency.
PR Checklist - Required to merge
  •  📦 pnpm changeset --empty was run for this workbench-only PR
  •  🔒 DCO sign-off passes (git commit --signoff)
  •  📝 Ping @vercel/workflow in a comment once the PR is ready, and the above checklist is complete
Open in WebOpen in Cursor
@cursoragent
Move workbench code-block styles to Tailwind
523ff91
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
@changeset-bot
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commented
Aug 3, 2026•

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🦋 Changeset detected
Latest commit: b5e18c8
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/web-sharedPatch
@workflow/webPatch
@workflow/cliPatch
@workflow/nitroPatch
workflowPatch
@workflow/world-testingPatch
@workflow/nuxtPatch
@workflow/corePatch
@workflow/buildersPatch
@workflow/nextPatch
@workflow/vitestPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
@vercel
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Aug 3, 2026•

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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreviewAug 3, 2026 9:01pm
example-nextjs-workflow-webpackReadyReadyPreviewAug 3, 2026 9:01pm
example-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-astro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-express-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-fastify-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-hono-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nestjs-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nitro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nuxt-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-sveltekit-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-tanstack-start-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-vite-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workflow-docsReadyReadyPreview, v0Aug 3, 2026 9:01pm
workflow-swc-playgroundReadyReadyPreviewAug 3, 2026 9:01pm
workflow-tarballsReadyReadyPreviewAug 3, 2026 9:01pm
workflow-webReadyReadyPreviewAug 3, 2026 9:01pm
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🧪 E2E Test Results
❌ Some tests failed
❌ Failed E2E Tests
▲ Vercel Production (2 failed)
nextjs-turbopack (1 failed):
  • pages router sleepingWorkflow via pages router
vite (1 failed):
  • fibonacciWorkflow - recursive workflow composition via start() | wrun_41KZ4QC80A0GTAHZ13JJ3DWF5M | 🔍 observability
💻 Local Development (1 failed)
sveltekit-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
📋 Other (1 failed)
e2e-local-prod-nest-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
vercel-multi-region (1 failed)
nextjs-turbopack (1 failed):
  • multi-region (world-vercel) implicit region: region-pinned routes without a region option /api/e2e-region-implicit/fra1 mints a run tagged with its VERCEL_REGION
E2E Test Summary
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145322391694
❌ 💻 Local Development162012271848
✅ 📦 Local Production162102271848
✅ 🐘 Local Postgres162102271848
✅ 🪟 Windows15400154
❌ 📋 Other101912121232
❌ vercel-multi-region261027
Total7514511328651
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126028
✅ example126028
✅ express126028
✅ fastify126028
✅ hono126028
❌ nextjs-turbopack15013
✅ nextjs-webpack15103
✅ nitro126028
✅ nuxt126028
✅ sveltekit14509
❌ vite125128
❌ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
❌ sveltekit-stable14617
✅ vite-stable128026
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15400
❌ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128026
✅ e2e-local-dev-tanstack-start-128026
✅ e2e-local-postgres-nest-stable128026
✅ e2e-local-postgres-tanstack-start-128026
❌ e2e-local-prod-nest-stable127126
✅ e2e-local-prod-tanstack-start-128026
✅ e2e-vercel-prod-nest126028
✅ e2e-vercel-prod-tanstack-start126028
❌ vercel-multi-region
AppPassedFailedSkipped
❌ nextjs-turbopack2610
📋 View full workflow run
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📊 Workflow Benchmarks
commit b5e18c8 · Mon, 03 Aug 2026 21:22:26 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioBest (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstep1302 (+575%) 🔻1455 🔴 (+43%) 🔻1523 🔴 (+44%) 🔻1827 🔴 (+44%) 🔻30
TTFSstream1306 (+507%) 🔻1373 🔴 (+31%) 🔻1394 🔴 (+32%) 🔻1470 🔴 (±0%)30
TTFShook + stream1415 (+268%) 🔻1801 🔴 (+44%) 🔻1898 🔴 (+48%) 🔻2072 🔴 (+47%) 🔻30
STSO1020 steps (inline)193 (+10%)494 (±0%)569 (+3.6%)741 (-40%) 💚1016
STSO1020 steps (queue-hop)2480 (+56%) 🔻3298 (-89%) 💚3298 (-97%) 💚3298 (-97%) 💚3
WO1020 steps438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚1
SLstream latency133 (+55%) 🔻198 🔴 (+20%) 🔻209 🔴 (+6.6%)372 🔴 (+14%)30
SOstream overhead (text)142 (+11%)197 (-95%) 💚207 (-99%) 💚232 (-100%) 💚30
SOstream overhead (structured)146 (+6.6%)217 (-50%) 💚241 (-98%) 💚459 (-99%) 💚30
📈 STSO distribution vs main (inline / queue-hop histograms)
1020 steps (inline)
Cumulative STSO time: main 695511ms → this run 427879ms (Δ -267632ms, -38%)
 150-200 ms ┃ main 6 this 1 -5
200-250 ms ████████┃ main 56 this 66 +10
250-300 ms ███████████████░┃ main 106 this 123 +17
300-350 ms ██████████████████┃█ main 145 this 139 -6
350-400 ms ███████████████┃████ main 141 this 112 -29
400-450 ms ██████████████████████░┃ main 161 this 172 +11
450-500 ms █████████████████████┃ main 155 this 161 +6
500-550 ms ███████████████┃████ main 142 this 112 -30
550-600 ms ███████░┃ main 47 this 62 +15
600-650 ms ███░┃ main 18 this 38 +20
650-700 ms █┃ main 7 this 12 +5
700-750 ms ┃ main 8 this 9 +1
750-800 ms ┃ main 3 this 2 -1
800-850 ms ┃ main 4 this 3 -1
900-950 ms ┃ main 1 this 1 +0
1000-1050 ms ┃ main 1 this 0 -1
1050-1100 ms ┃ main 0 this 1 +1
1150-1200 ms ┃ main 1 this 1 +0
1200-1250 ms ┃ main 1 this 0 -1
1250-1300 ms ┃ main 1 this 0 -1
1900-1950 ms ┃ main 0 this 1 +1
4000-4050 ms ┃ main 1 this 0 -1
8600-8650 ms ┃ main 1 this 0 -1
9850-9900 ms ┃ main 1 this 0 -1
12450-12500 ms ┃ main 1 this 0 -1
15900-15950 ms ┃ main 1 this 0 -1
35150-35200 ms ┃ main 1 this 0 -1
35200-35250 ms ┃ main 1 this 0 -1
48400-48450 ms ┃ main 1 this 0 -1
106950-107000 ms ┃ main 1 this 0 -1

1020 steps (queue-hop)
Cumulative STSO time: main 161965ms → this run 9062ms (Δ -152903ms, -94%)
 0-20000 ms █████████████████┃██████ main 4 this 3 -1
20000-40000 ms ┃█████ main 1 this 0 -1
120000-140000 ms ┃█████ main 1 this 0 -1

ℹ️ Metric definitions & methodology
The collapsed STSO distribution section above buckets every step gap of the sequential-steps run (not a sampled window), split by whether the step ending the gap ran inline — in the same warm process as the step before it, so the gap is pure framework overhead — or after a queue-hop — the first step of a fresh process, which pays queue dispatch, client reinit and event-log replay. Bars overlay the two runs: █ is main, ┃ marks where this run lands, ░ bridges the gap when this run has more samples in a bucket.
Best/P75/P90/P99 deltas compare against the most recent benchmark run on main at the time of this run. 🔻 flags a delta worse than +15%, 💚 one better than −15%.
Metrics — TTFS: time to first step body (in-deployment start() → first step body, deployment clocks) · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (whole-run time outside step bodies, in-deployment anchored) · SL: stream latency (in-deployment write → read propagation, readAt - writtenAt) · SO: stream overhead (end-to-end write+consume time beyond the modelled generation window)
Scenarios — step: one trivial no-op step, no stream; no hooks, so the run stays in turbo mode (in-process fast path) · stream: one streaming step; no hooks, so the run stays in turbo mode (in-process fast path) · hook + stream: registers a hook before one step, which exits turbo mode (dispatch path) · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges, and WO is the whole-run overhead outside step bodies · stream latency: parallel reader/writer steps on a dedicated stream; SL is the in-deployment write->read propagation (readAt - writtenAt) · stream overhead (text): writer streams 300 variable-length text token deltas paced at 100/s for 3s (a haiku-size LLM's token throughput) while a parallel reader drains the whole stream; SO is the end-to-end write+consume time beyond the 3s generation window (overhead/backpressure) · stream overhead (structured): same workload as stream overhead (text), but each delta is an AI-SDK-style structured object ({ type: 'text-delta', id, text }) instead of a raw string, so the SO gap vs the text scenario is the added serialization cost
🔴 marks a percentile over its target (within target is left unmarked). Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · SO 250/500/1000
All metrics are measured from deployment-side timestamps only. Runs are triggered by an in-deployment route that stamps the anchor (clientStart) right before start(), so the CI runner’s request and its path through api.vercel.com sit outside every measured window. TTFS = in-deployment start() → first step body (turbo uses the in-process fast path, non-turbo the dispatch path), and includes the VQS dispatch hop plus any /flow cold start. STSO/WO are measured between step bodies on the deployment. SL is measured inside the workflow (parallel reader/writer steps), so it no longer includes the api.vercel.com read path.
Cold starts are kept in the numbers on purpose — they are part of real bursty-workload latency. The workbench deployment cold-starts the /flow invocation for a large fraction of runs, inflating P75+; the Best column shows the fastest (warm-start) sample for comparison.
@cursoragent
Merge remote-tracking branch 'origin/main' into c+ms/workbench-code-b…
f05df1a
…lock-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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Merge remote-tracking branch 'origin/c+ms/workflow-web-tailwind-86b1'…
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… into c+ms/workbench-code-block-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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Move workbench code-block styles to Tailwind[4/4] Move workbench code-block styles to TailwindAug 3, 2026
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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[4/4] Move workbench code-block styles to Tailwind - #3310
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[4/4] Move workbench code-block styles to Tailwind#3310
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Description
  • Replace the static content-visibility and intrinsic-size inline styles on workbench code blocks with Tailwind arbitrary-property utilities.
  • Preserve consumer-provided style overrides.
Stack
  1. Shared UI components
  2. Trace viewer
  3. Workflow web/graph
  4. This PR — workbench code block
Merge in order from 1 to 4.
How did you test your changes?
  • Biome check on the changed component — no errors
  • A recursive workbench build was blocked by the VM's Cargo 1.83 lacking edition2024 support for @workflow/swc-plugin.
  • A direct workbench build was consequently blocked by the unavailable generated workflow/dist/next.cjs dependency.
PR Checklist - Required to merge
  •  📦 pnpm changeset --empty was run for this workbench-only PR
  •  🔒 DCO sign-off passes (git commit --signoff)
  •  📝 Ping @vercel/workflow in a comment once the PR is ready, and the above checklist is complete
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Move workbench code-block styles to Tailwind
523ff91
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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🦋 Changeset detected
Latest commit: b5e18c8
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/web-sharedPatch
@workflow/webPatch
@workflow/cliPatch
@workflow/nitroPatch
workflowPatch
@workflow/world-testingPatch
@workflow/nuxtPatch
@workflow/corePatch
@workflow/buildersPatch
@workflow/nextPatch
@workflow/vitestPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreviewAug 3, 2026 9:01pm
example-nextjs-workflow-webpackReadyReadyPreviewAug 3, 2026 9:01pm
example-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-astro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-express-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-fastify-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-hono-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nestjs-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nitro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nuxt-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-sveltekit-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-tanstack-start-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-vite-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workflow-docsReadyReadyPreview, v0Aug 3, 2026 9:01pm
workflow-swc-playgroundReadyReadyPreviewAug 3, 2026 9:01pm
workflow-tarballsReadyReadyPreviewAug 3, 2026 9:01pm
workflow-webReadyReadyPreviewAug 3, 2026 9:01pm
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🧪 E2E Test Results
❌ Some tests failed
❌ Failed E2E Tests
▲ Vercel Production (2 failed)
nextjs-turbopack (1 failed):
  • pages router sleepingWorkflow via pages router
vite (1 failed):
  • fibonacciWorkflow - recursive workflow composition via start() | wrun_41KZ4QC80A0GTAHZ13JJ3DWF5M | 🔍 observability
💻 Local Development (1 failed)
sveltekit-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
📋 Other (1 failed)
e2e-local-prod-nest-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
vercel-multi-region (1 failed)
nextjs-turbopack (1 failed):
  • multi-region (world-vercel) implicit region: region-pinned routes without a region option /api/e2e-region-implicit/fra1 mints a run tagged with its VERCEL_REGION
E2E Test Summary
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145322391694
❌ 💻 Local Development162012271848
✅ 📦 Local Production162102271848
✅ 🐘 Local Postgres162102271848
✅ 🪟 Windows15400154
❌ 📋 Other101912121232
❌ vercel-multi-region261027
Total7514511328651
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126028
✅ example126028
✅ express126028
✅ fastify126028
✅ hono126028
❌ nextjs-turbopack15013
✅ nextjs-webpack15103
✅ nitro126028
✅ nuxt126028
✅ sveltekit14509
❌ vite125128
❌ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
❌ sveltekit-stable14617
✅ vite-stable128026
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15400
❌ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128026
✅ e2e-local-dev-tanstack-start-128026
✅ e2e-local-postgres-nest-stable128026
✅ e2e-local-postgres-tanstack-start-128026
❌ e2e-local-prod-nest-stable127126
✅ e2e-local-prod-tanstack-start-128026
✅ e2e-vercel-prod-nest126028
✅ e2e-vercel-prod-tanstack-start126028
❌ vercel-multi-region
AppPassedFailedSkipped
❌ nextjs-turbopack2610
📋 View full workflow run
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📊 Workflow Benchmarks
commit b5e18c8 · Mon, 03 Aug 2026 21:22:26 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioBest (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstep1302 (+575%) 🔻1455 🔴 (+43%) 🔻1523 🔴 (+44%) 🔻1827 🔴 (+44%) 🔻30
TTFSstream1306 (+507%) 🔻1373 🔴 (+31%) 🔻1394 🔴 (+32%) 🔻1470 🔴 (±0%)30
TTFShook + stream1415 (+268%) 🔻1801 🔴 (+44%) 🔻1898 🔴 (+48%) 🔻2072 🔴 (+47%) 🔻30
STSO1020 steps (inline)193 (+10%)494 (±0%)569 (+3.6%)741 (-40%) 💚1016
STSO1020 steps (queue-hop)2480 (+56%) 🔻3298 (-89%) 💚3298 (-97%) 💚3298 (-97%) 💚3
WO1020 steps438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚1
SLstream latency133 (+55%) 🔻198 🔴 (+20%) 🔻209 🔴 (+6.6%)372 🔴 (+14%)30
SOstream overhead (text)142 (+11%)197 (-95%) 💚207 (-99%) 💚232 (-100%) 💚30
SOstream overhead (structured)146 (+6.6%)217 (-50%) 💚241 (-98%) 💚459 (-99%) 💚30
📈 STSO distribution vs main (inline / queue-hop histograms)
1020 steps (inline)
Cumulative STSO time: main 695511ms → this run 427879ms (Δ -267632ms, -38%)
 150-200 ms ┃ main 6 this 1 -5
200-250 ms ████████┃ main 56 this 66 +10
250-300 ms ███████████████░┃ main 106 this 123 +17
300-350 ms ██████████████████┃█ main 145 this 139 -6
350-400 ms ███████████████┃████ main 141 this 112 -29
400-450 ms ██████████████████████░┃ main 161 this 172 +11
450-500 ms █████████████████████┃ main 155 this 161 +6
500-550 ms ███████████████┃████ main 142 this 112 -30
550-600 ms ███████░┃ main 47 this 62 +15
600-650 ms ███░┃ main 18 this 38 +20
650-700 ms █┃ main 7 this 12 +5
700-750 ms ┃ main 8 this 9 +1
750-800 ms ┃ main 3 this 2 -1
800-850 ms ┃ main 4 this 3 -1
900-950 ms ┃ main 1 this 1 +0
1000-1050 ms ┃ main 1 this 0 -1
1050-1100 ms ┃ main 0 this 1 +1
1150-1200 ms ┃ main 1 this 1 +0
1200-1250 ms ┃ main 1 this 0 -1
1250-1300 ms ┃ main 1 this 0 -1
1900-1950 ms ┃ main 0 this 1 +1
4000-4050 ms ┃ main 1 this 0 -1
8600-8650 ms ┃ main 1 this 0 -1
9850-9900 ms ┃ main 1 this 0 -1
12450-12500 ms ┃ main 1 this 0 -1
15900-15950 ms ┃ main 1 this 0 -1
35150-35200 ms ┃ main 1 this 0 -1
35200-35250 ms ┃ main 1 this 0 -1
48400-48450 ms ┃ main 1 this 0 -1
106950-107000 ms ┃ main 1 this 0 -1

1020 steps (queue-hop)
Cumulative STSO time: main 161965ms → this run 9062ms (Δ -152903ms, -94%)
 0-20000 ms █████████████████┃██████ main 4 this 3 -1
20000-40000 ms ┃█████ main 1 this 0 -1
120000-140000 ms ┃█████ main 1 this 0 -1

ℹ️ Metric definitions & methodology
The collapsed STSO distribution section above buckets every step gap of the sequential-steps run (not a sampled window), split by whether the step ending the gap ran inline — in the same warm process as the step before it, so the gap is pure framework overhead — or after a queue-hop — the first step of a fresh process, which pays queue dispatch, client reinit and event-log replay. Bars overlay the two runs: █ is main, ┃ marks where this run lands, ░ bridges the gap when this run has more samples in a bucket.
Best/P75/P90/P99 deltas compare against the most recent benchmark run on main at the time of this run. 🔻 flags a delta worse than +15%, 💚 one better than −15%.
Metrics — TTFS: time to first step body (in-deployment start() → first step body, deployment clocks) · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (whole-run time outside step bodies, in-deployment anchored) · SL: stream latency (in-deployment write → read propagation, readAt - writtenAt) · SO: stream overhead (end-to-end write+consume time beyond the modelled generation window)
Scenarios — step: one trivial no-op step, no stream; no hooks, so the run stays in turbo mode (in-process fast path) · stream: one streaming step; no hooks, so the run stays in turbo mode (in-process fast path) · hook + stream: registers a hook before one step, which exits turbo mode (dispatch path) · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges, and WO is the whole-run overhead outside step bodies · stream latency: parallel reader/writer steps on a dedicated stream; SL is the in-deployment write->read propagation (readAt - writtenAt) · stream overhead (text): writer streams 300 variable-length text token deltas paced at 100/s for 3s (a haiku-size LLM's token throughput) while a parallel reader drains the whole stream; SO is the end-to-end write+consume time beyond the 3s generation window (overhead/backpressure) · stream overhead (structured): same workload as stream overhead (text), but each delta is an AI-SDK-style structured object ({ type: 'text-delta', id, text }) instead of a raw string, so the SO gap vs the text scenario is the added serialization cost
🔴 marks a percentile over its target (within target is left unmarked). Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · SO 250/500/1000
All metrics are measured from deployment-side timestamps only. Runs are triggered by an in-deployment route that stamps the anchor (clientStart) right before start(), so the CI runner’s request and its path through api.vercel.com sit outside every measured window. TTFS = in-deployment start() → first step body (turbo uses the in-process fast path, non-turbo the dispatch path), and includes the VQS dispatch hop plus any /flow cold start. STSO/WO are measured between step bodies on the deployment. SL is measured inside the workflow (parallel reader/writer steps), so it no longer includes the api.vercel.com read path.
Cold starts are kept in the numbers on purpose — they are part of real bursty-workload latency. The workbench deployment cold-starts the /flow invocation for a large fraction of runs, inflating P75+; the Best column shows the fastest (warm-start) sample for comparison.
@cursoragent
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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[4/4] Move workbench code-block styles to Tailwind - #3310
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[4/4] Move workbench code-block styles to Tailwind#3310
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Description
  • Replace the static content-visibility and intrinsic-size inline styles on workbench code blocks with Tailwind arbitrary-property utilities.
  • Preserve consumer-provided style overrides.
Stack
  1. Shared UI components
  2. Trace viewer
  3. Workflow web/graph
  4. This PR — workbench code block
Merge in order from 1 to 4.
How did you test your changes?
  • Biome check on the changed component — no errors
  • A recursive workbench build was blocked by the VM's Cargo 1.83 lacking edition2024 support for @workflow/swc-plugin.
  • A direct workbench build was consequently blocked by the unavailable generated workflow/dist/next.cjs dependency.
PR Checklist - Required to merge
  •  📦 pnpm changeset --empty was run for this workbench-only PR
  •  🔒 DCO sign-off passes (git commit --signoff)
  •  📝 Ping @vercel/workflow in a comment once the PR is ready, and the above checklist is complete
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@cursoragent
Move workbench code-block styles to Tailwind
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Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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🦋 Changeset detected
Latest commit: b5e18c8
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/web-sharedPatch
@workflow/webPatch
@workflow/cliPatch
@workflow/nitroPatch
workflowPatch
@workflow/world-testingPatch
@workflow/nuxtPatch
@workflow/corePatch
@workflow/buildersPatch
@workflow/nextPatch
@workflow/vitestPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreviewAug 3, 2026 9:01pm
example-nextjs-workflow-webpackReadyReadyPreviewAug 3, 2026 9:01pm
example-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-astro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-express-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-fastify-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-hono-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nestjs-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nitro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nuxt-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-sveltekit-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-tanstack-start-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-vite-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workflow-docsReadyReadyPreview, v0Aug 3, 2026 9:01pm
workflow-swc-playgroundReadyReadyPreviewAug 3, 2026 9:01pm
workflow-tarballsReadyReadyPreviewAug 3, 2026 9:01pm
workflow-webReadyReadyPreviewAug 3, 2026 9:01pm
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🧪 E2E Test Results
❌ Some tests failed
❌ Failed E2E Tests
▲ Vercel Production (2 failed)
nextjs-turbopack (1 failed):
  • pages router sleepingWorkflow via pages router
vite (1 failed):
  • fibonacciWorkflow - recursive workflow composition via start() | wrun_41KZ4QC80A0GTAHZ13JJ3DWF5M | 🔍 observability
💻 Local Development (1 failed)
sveltekit-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
📋 Other (1 failed)
e2e-local-prod-nest-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
vercel-multi-region (1 failed)
nextjs-turbopack (1 failed):
  • multi-region (world-vercel) implicit region: region-pinned routes without a region option /api/e2e-region-implicit/fra1 mints a run tagged with its VERCEL_REGION
E2E Test Summary
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145322391694
❌ 💻 Local Development162012271848
✅ 📦 Local Production162102271848
✅ 🐘 Local Postgres162102271848
✅ 🪟 Windows15400154
❌ 📋 Other101912121232
❌ vercel-multi-region261027
Total7514511328651
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126028
✅ example126028
✅ express126028
✅ fastify126028
✅ hono126028
❌ nextjs-turbopack15013
✅ nextjs-webpack15103
✅ nitro126028
✅ nuxt126028
✅ sveltekit14509
❌ vite125128
❌ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
❌ sveltekit-stable14617
✅ vite-stable128026
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15400
❌ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128026
✅ e2e-local-dev-tanstack-start-128026
✅ e2e-local-postgres-nest-stable128026
✅ e2e-local-postgres-tanstack-start-128026
❌ e2e-local-prod-nest-stable127126
✅ e2e-local-prod-tanstack-start-128026
✅ e2e-vercel-prod-nest126028
✅ e2e-vercel-prod-tanstack-start126028
❌ vercel-multi-region
AppPassedFailedSkipped
❌ nextjs-turbopack2610
📋 View full workflow run
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📊 Workflow Benchmarks
commit b5e18c8 · Mon, 03 Aug 2026 21:22:26 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioBest (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstep1302 (+575%) 🔻1455 🔴 (+43%) 🔻1523 🔴 (+44%) 🔻1827 🔴 (+44%) 🔻30
TTFSstream1306 (+507%) 🔻1373 🔴 (+31%) 🔻1394 🔴 (+32%) 🔻1470 🔴 (±0%)30
TTFShook + stream1415 (+268%) 🔻1801 🔴 (+44%) 🔻1898 🔴 (+48%) 🔻2072 🔴 (+47%) 🔻30
STSO1020 steps (inline)193 (+10%)494 (±0%)569 (+3.6%)741 (-40%) 💚1016
STSO1020 steps (queue-hop)2480 (+56%) 🔻3298 (-89%) 💚3298 (-97%) 💚3298 (-97%) 💚3
WO1020 steps438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚1
SLstream latency133 (+55%) 🔻198 🔴 (+20%) 🔻209 🔴 (+6.6%)372 🔴 (+14%)30
SOstream overhead (text)142 (+11%)197 (-95%) 💚207 (-99%) 💚232 (-100%) 💚30
SOstream overhead (structured)146 (+6.6%)217 (-50%) 💚241 (-98%) 💚459 (-99%) 💚30
📈 STSO distribution vs main (inline / queue-hop histograms)
1020 steps (inline)
Cumulative STSO time: main 695511ms → this run 427879ms (Δ -267632ms, -38%)
 150-200 ms ┃ main 6 this 1 -5
200-250 ms ████████┃ main 56 this 66 +10
250-300 ms ███████████████░┃ main 106 this 123 +17
300-350 ms ██████████████████┃█ main 145 this 139 -6
350-400 ms ███████████████┃████ main 141 this 112 -29
400-450 ms ██████████████████████░┃ main 161 this 172 +11
450-500 ms █████████████████████┃ main 155 this 161 +6
500-550 ms ███████████████┃████ main 142 this 112 -30
550-600 ms ███████░┃ main 47 this 62 +15
600-650 ms ███░┃ main 18 this 38 +20
650-700 ms █┃ main 7 this 12 +5
700-750 ms ┃ main 8 this 9 +1
750-800 ms ┃ main 3 this 2 -1
800-850 ms ┃ main 4 this 3 -1
900-950 ms ┃ main 1 this 1 +0
1000-1050 ms ┃ main 1 this 0 -1
1050-1100 ms ┃ main 0 this 1 +1
1150-1200 ms ┃ main 1 this 1 +0
1200-1250 ms ┃ main 1 this 0 -1
1250-1300 ms ┃ main 1 this 0 -1
1900-1950 ms ┃ main 0 this 1 +1
4000-4050 ms ┃ main 1 this 0 -1
8600-8650 ms ┃ main 1 this 0 -1
9850-9900 ms ┃ main 1 this 0 -1
12450-12500 ms ┃ main 1 this 0 -1
15900-15950 ms ┃ main 1 this 0 -1
35150-35200 ms ┃ main 1 this 0 -1
35200-35250 ms ┃ main 1 this 0 -1
48400-48450 ms ┃ main 1 this 0 -1
106950-107000 ms ┃ main 1 this 0 -1

1020 steps (queue-hop)
Cumulative STSO time: main 161965ms → this run 9062ms (Δ -152903ms, -94%)
 0-20000 ms █████████████████┃██████ main 4 this 3 -1
20000-40000 ms ┃█████ main 1 this 0 -1
120000-140000 ms ┃█████ main 1 this 0 -1

ℹ️ Metric definitions & methodology
The collapsed STSO distribution section above buckets every step gap of the sequential-steps run (not a sampled window), split by whether the step ending the gap ran inline — in the same warm process as the step before it, so the gap is pure framework overhead — or after a queue-hop — the first step of a fresh process, which pays queue dispatch, client reinit and event-log replay. Bars overlay the two runs: █ is main, ┃ marks where this run lands, ░ bridges the gap when this run has more samples in a bucket.
Best/P75/P90/P99 deltas compare against the most recent benchmark run on main at the time of this run. 🔻 flags a delta worse than +15%, 💚 one better than −15%.
Metrics — TTFS: time to first step body (in-deployment start() → first step body, deployment clocks) · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (whole-run time outside step bodies, in-deployment anchored) · SL: stream latency (in-deployment write → read propagation, readAt - writtenAt) · SO: stream overhead (end-to-end write+consume time beyond the modelled generation window)
Scenarios — step: one trivial no-op step, no stream; no hooks, so the run stays in turbo mode (in-process fast path) · stream: one streaming step; no hooks, so the run stays in turbo mode (in-process fast path) · hook + stream: registers a hook before one step, which exits turbo mode (dispatch path) · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges, and WO is the whole-run overhead outside step bodies · stream latency: parallel reader/writer steps on a dedicated stream; SL is the in-deployment write->read propagation (readAt - writtenAt) · stream overhead (text): writer streams 300 variable-length text token deltas paced at 100/s for 3s (a haiku-size LLM's token throughput) while a parallel reader drains the whole stream; SO is the end-to-end write+consume time beyond the 3s generation window (overhead/backpressure) · stream overhead (structured): same workload as stream overhead (text), but each delta is an AI-SDK-style structured object ({ type: 'text-delta', id, text }) instead of a raw string, so the SO gap vs the text scenario is the added serialization cost
🔴 marks a percentile over its target (within target is left unmarked). Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · SO 250/500/1000
All metrics are measured from deployment-side timestamps only. Runs are triggered by an in-deployment route that stamps the anchor (clientStart) right before start(), so the CI runner’s request and its path through api.vercel.com sit outside every measured window. TTFS = in-deployment start() → first step body (turbo uses the in-process fast path, non-turbo the dispatch path), and includes the VQS dispatch hop plus any /flow cold start. STSO/WO are measured between step bodies on the deployment. SL is measured inside the workflow (parallel reader/writer steps), so it no longer includes the api.vercel.com read path.
Cold starts are kept in the numbers on purpose — they are part of real bursty-workload latency. The workbench deployment cold-starts the /flow invocation for a large fraction of runs, inflating P75+; the Best column shows the fastest (warm-start) sample for comparison.
@cursoragent
Merge remote-tracking branch 'origin/main' into c+ms/workbench-code-b…
f05df1a
…lock-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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Merge remote-tracking branch 'origin/c+ms/workflow-web-tailwind-86b1'…
b5e18c8
… into c+ms/workbench-code-block-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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Move workbench code-block styles to Tailwind[4/4] Move workbench code-block styles to TailwindAug 3, 2026
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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[4/4] Move workbench code-block styles to Tailwind - #3310
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[4/4] Move workbench code-block styles to Tailwind#3310
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Description
  • Replace the static content-visibility and intrinsic-size inline styles on workbench code blocks with Tailwind arbitrary-property utilities.
  • Preserve consumer-provided style overrides.
Stack
  1. Shared UI components
  2. Trace viewer
  3. Workflow web/graph
  4. This PR — workbench code block
Merge in order from 1 to 4.
How did you test your changes?
  • Biome check on the changed component — no errors
  • A recursive workbench build was blocked by the VM's Cargo 1.83 lacking edition2024 support for @workflow/swc-plugin.
  • A direct workbench build was consequently blocked by the unavailable generated workflow/dist/next.cjs dependency.
PR Checklist - Required to merge
  •  📦 pnpm changeset --empty was run for this workbench-only PR
  •  🔒 DCO sign-off passes (git commit --signoff)
  •  📝 Ping @vercel/workflow in a comment once the PR is ready, and the above checklist is complete
Open in WebOpen in Cursor
@cursoragent
Move workbench code-block styles to Tailwind
523ff91
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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🦋 Changeset detected
Latest commit: b5e18c8
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/web-sharedPatch
@workflow/webPatch
@workflow/cliPatch
@workflow/nitroPatch
workflowPatch
@workflow/world-testingPatch
@workflow/nuxtPatch
@workflow/corePatch
@workflow/buildersPatch
@workflow/nextPatch
@workflow/vitestPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreviewAug 3, 2026 9:01pm
example-nextjs-workflow-webpackReadyReadyPreviewAug 3, 2026 9:01pm
example-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-astro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-express-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-fastify-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-hono-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nestjs-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nitro-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-nuxt-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-sveltekit-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-tanstack-start-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workbench-vite-workflowReadyReadyPreviewAug 3, 2026 9:01pm
workflow-docsReadyReadyPreview, v0Aug 3, 2026 9:01pm
workflow-swc-playgroundReadyReadyPreviewAug 3, 2026 9:01pm
workflow-tarballsReadyReadyPreviewAug 3, 2026 9:01pm
workflow-webReadyReadyPreviewAug 3, 2026 9:01pm
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🧪 E2E Test Results
❌ Some tests failed
❌ Failed E2E Tests
▲ Vercel Production (2 failed)
nextjs-turbopack (1 failed):
  • pages router sleepingWorkflow via pages router
vite (1 failed):
  • fibonacciWorkflow - recursive workflow composition via start() | wrun_41KZ4QC80A0GTAHZ13JJ3DWF5M | 🔍 observability
💻 Local Development (1 failed)
sveltekit-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
📋 Other (1 failed)
e2e-local-prod-nest-stable (1 failed):
  • webhookWorkflow | wrun_41KZ4PYJD80GR5KZ0JDZRHQHXB
vercel-multi-region (1 failed)
nextjs-turbopack (1 failed):
  • multi-region (world-vercel) implicit region: region-pinned routes without a region option /api/e2e-region-implicit/fra1 mints a run tagged with its VERCEL_REGION
E2E Test Summary
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145322391694
❌ 💻 Local Development162012271848
✅ 📦 Local Production162102271848
✅ 🐘 Local Postgres162102271848
✅ 🪟 Windows15400154
❌ 📋 Other101912121232
❌ vercel-multi-region261027
Total7514511328651
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126028
✅ example126028
✅ express126028
✅ fastify126028
✅ hono126028
❌ nextjs-turbopack15013
✅ nextjs-webpack15103
✅ nitro126028
✅ nuxt126028
✅ sveltekit14509
❌ vite125128
❌ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
❌ sveltekit-stable14617
✅ vite-stable128026
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128026
✅ express-stable128026
✅ fastify-stable128026
✅ hono-stable128026
✅ nextjs-turbopack-canary135019
✅ nextjs-turbopack-stable15400
✅ nextjs-webpack-canary135019
✅ nextjs-webpack-stable15400
✅ nitro-stable128026
✅ nuxt-stable128026
✅ sveltekit-stable14707
✅ vite-stable128026
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15400
❌ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128026
✅ e2e-local-dev-tanstack-start-128026
✅ e2e-local-postgres-nest-stable128026
✅ e2e-local-postgres-tanstack-start-128026
❌ e2e-local-prod-nest-stable127126
✅ e2e-local-prod-tanstack-start-128026
✅ e2e-vercel-prod-nest126028
✅ e2e-vercel-prod-tanstack-start126028
❌ vercel-multi-region
AppPassedFailedSkipped
❌ nextjs-turbopack2610
📋 View full workflow run
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📊 Workflow Benchmarks
commit b5e18c8 · Mon, 03 Aug 2026 21:22:26 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioBest (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstep1302 (+575%) 🔻1455 🔴 (+43%) 🔻1523 🔴 (+44%) 🔻1827 🔴 (+44%) 🔻30
TTFSstream1306 (+507%) 🔻1373 🔴 (+31%) 🔻1394 🔴 (+32%) 🔻1470 🔴 (±0%)30
TTFShook + stream1415 (+268%) 🔻1801 🔴 (+44%) 🔻1898 🔴 (+48%) 🔻2072 🔴 (+47%) 🔻30
STSO1020 steps (inline)193 (+10%)494 (±0%)569 (+3.6%)741 (-40%) 💚1016
STSO1020 steps (queue-hop)2480 (+56%) 🔻3298 (-89%) 💚3298 (-97%) 💚3298 (-97%) 💚3
WO1020 steps438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚438253 (-49%) 💚1
SLstream latency133 (+55%) 🔻198 🔴 (+20%) 🔻209 🔴 (+6.6%)372 🔴 (+14%)30
SOstream overhead (text)142 (+11%)197 (-95%) 💚207 (-99%) 💚232 (-100%) 💚30
SOstream overhead (structured)146 (+6.6%)217 (-50%) 💚241 (-98%) 💚459 (-99%) 💚30
📈 STSO distribution vs main (inline / queue-hop histograms)
1020 steps (inline)
Cumulative STSO time: main 695511ms → this run 427879ms (Δ -267632ms, -38%)
 150-200 ms ┃ main 6 this 1 -5
200-250 ms ████████┃ main 56 this 66 +10
250-300 ms ███████████████░┃ main 106 this 123 +17
300-350 ms ██████████████████┃█ main 145 this 139 -6
350-400 ms ███████████████┃████ main 141 this 112 -29
400-450 ms ██████████████████████░┃ main 161 this 172 +11
450-500 ms █████████████████████┃ main 155 this 161 +6
500-550 ms ███████████████┃████ main 142 this 112 -30
550-600 ms ███████░┃ main 47 this 62 +15
600-650 ms ███░┃ main 18 this 38 +20
650-700 ms █┃ main 7 this 12 +5
700-750 ms ┃ main 8 this 9 +1
750-800 ms ┃ main 3 this 2 -1
800-850 ms ┃ main 4 this 3 -1
900-950 ms ┃ main 1 this 1 +0
1000-1050 ms ┃ main 1 this 0 -1
1050-1100 ms ┃ main 0 this 1 +1
1150-1200 ms ┃ main 1 this 1 +0
1200-1250 ms ┃ main 1 this 0 -1
1250-1300 ms ┃ main 1 this 0 -1
1900-1950 ms ┃ main 0 this 1 +1
4000-4050 ms ┃ main 1 this 0 -1
8600-8650 ms ┃ main 1 this 0 -1
9850-9900 ms ┃ main 1 this 0 -1
12450-12500 ms ┃ main 1 this 0 -1
15900-15950 ms ┃ main 1 this 0 -1
35150-35200 ms ┃ main 1 this 0 -1
35200-35250 ms ┃ main 1 this 0 -1
48400-48450 ms ┃ main 1 this 0 -1
106950-107000 ms ┃ main 1 this 0 -1

1020 steps (queue-hop)
Cumulative STSO time: main 161965ms → this run 9062ms (Δ -152903ms, -94%)
 0-20000 ms █████████████████┃██████ main 4 this 3 -1
20000-40000 ms ┃█████ main 1 this 0 -1
120000-140000 ms ┃█████ main 1 this 0 -1

ℹ️ Metric definitions & methodology
The collapsed STSO distribution section above buckets every step gap of the sequential-steps run (not a sampled window), split by whether the step ending the gap ran inline — in the same warm process as the step before it, so the gap is pure framework overhead — or after a queue-hop — the first step of a fresh process, which pays queue dispatch, client reinit and event-log replay. Bars overlay the two runs: █ is main, ┃ marks where this run lands, ░ bridges the gap when this run has more samples in a bucket.
Best/P75/P90/P99 deltas compare against the most recent benchmark run on main at the time of this run. 🔻 flags a delta worse than +15%, 💚 one better than −15%.
Metrics — TTFS: time to first step body (in-deployment start() → first step body, deployment clocks) · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (whole-run time outside step bodies, in-deployment anchored) · SL: stream latency (in-deployment write → read propagation, readAt - writtenAt) · SO: stream overhead (end-to-end write+consume time beyond the modelled generation window)
Scenarios — step: one trivial no-op step, no stream; no hooks, so the run stays in turbo mode (in-process fast path) · stream: one streaming step; no hooks, so the run stays in turbo mode (in-process fast path) · hook + stream: registers a hook before one step, which exits turbo mode (dispatch path) · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges, and WO is the whole-run overhead outside step bodies · stream latency: parallel reader/writer steps on a dedicated stream; SL is the in-deployment write->read propagation (readAt - writtenAt) · stream overhead (text): writer streams 300 variable-length text token deltas paced at 100/s for 3s (a haiku-size LLM's token throughput) while a parallel reader drains the whole stream; SO is the end-to-end write+consume time beyond the 3s generation window (overhead/backpressure) · stream overhead (structured): same workload as stream overhead (text), but each delta is an AI-SDK-style structured object ({ type: 'text-delta', id, text }) instead of a raw string, so the SO gap vs the text scenario is the added serialization cost
🔴 marks a percentile over its target (within target is left unmarked). Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · SO 250/500/1000
All metrics are measured from deployment-side timestamps only. Runs are triggered by an in-deployment route that stamps the anchor (clientStart) right before start(), so the CI runner’s request and its path through api.vercel.com sit outside every measured window. TTFS = in-deployment start() → first step body (turbo uses the in-process fast path, non-turbo the dispatch path), and includes the VQS dispatch hop plus any /flow cold start. STSO/WO are measured between step bodies on the deployment. SL is measured inside the workflow (parallel reader/writer steps), so it no longer includes the api.vercel.com read path.
Cold starts are kept in the numbers on purpose — they are part of real bursty-workload latency. The workbench deployment cold-starts the /flow invocation for a large fraction of runs, inflating P75+; the Best column shows the fastest (warm-start) sample for comparison.
@cursoragent
Merge remote-tracking branch 'origin/main' into c+ms/workbench-code-b…
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…lock-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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Merge remote-tracking branch 'origin/c+ms/workflow-web-tailwind-86b1'…
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… into c+ms/workbench-code-block-tailwind-86b1
Signed-off-by: Cursor Agent <cursoragent@cursor.com>
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