fix(workflow): improve runtime API stub error message and fix SKILL.md streaming docs by pranaygp · Pull Request #1077 · vercel/workflow

pranaygp · 2026-02-16T05:20:53Z

Summary

Improve the error message when start(), getRun(), resumeHook(), etc. are called inside a workflow function — now tells users to move the call to a step function or outside the workflow context
Fix the SKILL.md streaming section which incorrectly stated getWritable() only works in steps — it can be called in both workflow and step contexts, but stream operations (write/close) must happen in steps
Fix the SKILL.md debugging section: remove non-existent --app-url flag, add npx workflow web <run_id> usage, reorganize examples, and add --json/--help tips

Test plan

Verify the updated error message appears when calling start() inside a "use workflow" function
Verify SKILL.md accurately reflects the getWritable() behavior documented in get-writable.mdx
Verify SKILL.md debugging commands match actual CLI --help output

🤖 Generated with Claude Code

…w context and fix SKILL.md streaming docs The workflow stub error now tells users to move calls to a step function or outside the workflow context. Also corrects the SKILL.md streaming section which incorrectly stated getWritable() only works in steps. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

changeset-bot · 2026-02-16T05:20:57Z

🦋 Changeset detected

Latest commit: e50a10f

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

This PR includes changesets to release 14 packages

Name	Type
workflow	Patch
@workflow/world-testing	Patch
@workflow/core	Patch
@workflow/builders	Patch
@workflow/cli	Patch
@workflow/next	Patch
@workflow/nitro	Patch
@workflow/web-shared	Patch
@workflow/astro	Patch
@workflow/nest	Patch
@workflow/rollup	Patch
@workflow/sveltekit	Patch
@workflow/vite	Patch
@workflow/nuxt	Patch

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 · 2026-02-16T05:20:58Z

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Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
example-nextjs-workflow-webpack	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
example-workflow	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workbench-astro-workflow	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workbench-express-workflow	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workbench-fastify-workflow	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workbench-hono-workflow	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workbench-nitro-workflow	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workbench-nuxt-workflow	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workbench-sveltekit-workflow	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workbench-vite-workflow	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workflow-docs	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workflow-nest	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm
workflow-swc-playground	Ready	Preview, Comment, Open in v0	Feb 19, 2026 9:51pm

github-actions · 2026-02-16T05:21:02Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	533	1	38	572
✅ 💻 Local Development	556	0	68	624
✅ 📦 Local Production	556	0	68	624
✅ 🐘 Local Postgres	556	0	68	624
✅ 🪟 Windows	49	0	3	52
❌ 🌍 Community Worlds	111	45	9	165
✅ 📋 Other	135	0	21	156
Total	2496	46	275	2817

❌ Failed Tests

▲ Vercel Production (1 failed)

sveltekit (1 failed):

error handling retry behavior workflow completes despite transient 5xx on step_completed

🌍 Community Worlds (45 failed)

turso (45 failed):

addTenWorkflow
addTenWorkflow
should work with react rendering in step
promiseAllWorkflow
promiseRaceWorkflow
promiseAnyWorkflow
hookWorkflow
webhookWorkflow
sleepingWorkflow
parallelSleepWorkflow
nullByteWorkflow
workflowAndStepMetadataWorkflow
fetchWorkflow
promiseRaceStressTestWorkflow
error handling error propagation workflow errors nested function calls preserve message and stack trace
error handling error propagation workflow errors cross-file imports preserve message and stack trace
error handling error propagation step errors basic step error preserves message and stack trace
error handling error propagation step errors cross-file step error preserves message and function names in stack
error handling retry behavior regular Error retries until success
error handling retry behavior FatalError fails immediately without retries
error handling retry behavior RetryableError respects custom retryAfter delay
error handling retry behavior maxRetries=0 disables retries
error handling retry behavior workflow completes despite transient 5xx on step_completed
error handling catchability FatalError can be caught and detected with FatalError.is()
hookCleanupTestWorkflow - hook token reuse after workflow completion
concurrent hook token conflict - two workflows cannot use the same hook token simultaneously
stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars)
stepFunctionWithClosureWorkflow - step function with closure variables passed as argument
closureVariableWorkflow - nested step functions with closure variables
spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step
health check (queue-based) - workflow and step endpoints respond to health check messages
pathsAliasWorkflow - TypeScript path aliases resolve correctly
Calculator.calculate - static workflow method using static step methods from another class
AllInOneService.processNumber - static workflow method using sibling static step methods
ChainableService.processWithThis - static step methods using this to reference the class
thisSerializationWorkflow - step function invoked with .call() and .apply()
customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE
instanceMethodStepWorkflow - instance methods with "use step" directive
crossContextSerdeWorkflow - classes defined in step code are deserializable in workflow context
stepFunctionAsStartArgWorkflow - step function reference passed as start() argument
cancelRun - cancelling a running workflow
cancelRun via CLI - cancelling a running workflow
pages router addTenWorkflow via pages router
pages router promiseAllWorkflow via pages router
pages router sleepingWorkflow via pages router

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	48	0	4
✅ example	48	0	4
✅ express	48	0	4
✅ fastify	48	0	4
✅ hono	48	0	4
✅ nextjs-turbopack	51	0	1
✅ nextjs-webpack	51	0	1
✅ nitro	48	0	4
✅ nuxt	48	0	4
❌ sveltekit	47	1	4
✅ vite	48	0	4

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	45	7
✅ express-stable	45	7
✅ fastify-stable	45	7
✅ hono-stable	45	7
✅ nextjs-turbopack-canary	49	3
✅ nextjs-turbopack-stable	49	3
✅ nextjs-webpack-canary	49	3
✅ nextjs-webpack-stable	49	3
✅ nitro-stable	45	7
✅ nuxt-stable	45	7
✅ sveltekit-stable	45	7
✅ vite-stable	45	7

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	45	7
✅ express-stable	45	7
✅ fastify-stable	45	7
✅ hono-stable	45	7
✅ nextjs-turbopack-canary	49	3
✅ nextjs-turbopack-stable	49	3
✅ nextjs-webpack-canary	49	3
✅ nextjs-webpack-stable	49	3
✅ nitro-stable	45	7
✅ nuxt-stable	45	7
✅ sveltekit-stable	45	7
✅ vite-stable	45	7

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	45	7
✅ express-stable	45	7
✅ fastify-stable	45	7
✅ hono-stable	45	7
✅ nextjs-turbopack-canary	49	3
✅ nextjs-turbopack-stable	49	3
✅ nextjs-webpack-canary	49	3
✅ nextjs-webpack-stable	49	3
✅ nitro-stable	45	7
✅ nuxt-stable	45	7
✅ sveltekit-stable	45	7
✅ vite-stable	45	7

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	49	0	3

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	0
✅ mongodb	49	0	3
✅ redis-dev	3	0	0
✅ redis	49	0	3
✅ turso-dev	3	0	0
❌ turso	4	45	3

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	45	7
✅ e2e-local-postgres-nest-stable	45	7
✅ e2e-local-prod-nest-stable	45	7

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: failure
Local Dev: success
Local Prod: success
Local Postgres: success
Windows: success

Check the workflow run for details.

github-actions · 2026-02-16T05:21:03Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.032s (-7.0% 🟢)	1.005s (~)	0.973s	10	1.00x
💻 Local	Express	0.032s (~)	1.004s (~)	0.972s	10	1.01x
🐘 Postgres	Express	0.177s (-59.7% 🟢)	1.010s (~)	0.833s	10	5.55x
🐘 Postgres	Nitro	0.259s (-48.3% 🟢)	1.009s (~)	0.750s	10	8.15x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	0.541s (-79.6% 🟢)	1.851s (-51.4% 🟢)	1.309s	10	1.00x
▲ Vercel	Nitro	0.619s (-38.6% 🟢)	1.908s (-22.1% 🟢)	1.289s	10	1.14x
▲ Vercel	Next.js (Turbopack)	0.654s (-77.5% 🟢)	2.047s (-49.1% 🟢)	1.393s	10	1.21x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.106s (~)	2.006s (~)	0.900s	10	1.00x
💻 Local	Express	1.107s (~)	2.005s (~)	0.898s	10	1.00x
🐘 Postgres	Nitro	2.445s (+5.0% 🔺)	3.014s (+3.4%)	0.569s	10	2.21x
🐘 Postgres	Express	2.447s (+6.2% 🔺)	3.013s (~)	0.566s	10	2.21x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.229s (-4.8%)	2.857s (-6.4% 🟢)	0.628s	10	1.00x
▲ Vercel	Nitro	2.293s (-3.2%)	3.239s (-0.6%)	0.946s	10	1.03x
▲ Vercel	Next.js (Turbopack)	2.338s (+1.4%)	3.270s (+7.4% 🔺)	0.932s	10	1.05x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	10.823s (~)	11.020s (~)	0.197s	3	1.00x
💻 Local	Nitro	10.830s (~)	11.021s (~)	0.191s	3	1.00x
🐘 Postgres	Express	20.305s (+0.7%)	21.053s (~)	0.748s	2	1.88x
🐘 Postgres	Nitro	20.315s (+33.2% 🔺)	21.056s (+31.2% 🔺)	0.741s	2	1.88x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	21.227s (+16.6% 🔺)	22.108s (+15.2% 🔺)	0.880s	2	1.00x
▲ Vercel	Nitro	23.983s (+24.5% 🔺)	25.872s (+26.4% 🔺)	1.889s	2	1.13x
▲ Vercel	Next.js (Turbopack)	28.987s (+59.4% 🔺)	30.076s (+53.2% 🔺)	1.089s	1	1.37x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	27.446s (~)	28.049s (~)	0.603s	3	1.00x
💻 Local	Nitro	27.447s (-0.6%)	28.050s (~)	0.602s	3	1.00x
🐘 Postgres	Express	50.336s (~)	51.120s (~)	0.784s	2	1.83x
🐘 Postgres	Nitro	50.360s (+33.2% 🔺)	51.122s (+34.2% 🔺)	0.762s	2	1.83x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	44.633s (-6.6% 🟢)	45.610s (-6.9% 🟢)	0.978s	2	1.00x
▲ Vercel	Express	45.168s (+0.7%)	46.140s (+0.7%)	0.972s	2	1.01x
▲ Vercel	Next.js (Turbopack)	45.822s (+3.0%)	47.188s (+3.1%)	1.366s	2	1.03x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	57.065s (-0.6%)	57.099s (-1.7%)	0.034s	2	1.00x
💻 Local	Express	57.117s (~)	58.101s (~)	0.984s	2	1.00x
🐘 Postgres	Express	100.262s (~)	101.209s (~)	0.947s	1	1.76x
🐘 Postgres	Nitro	100.298s (+32.0% 🔺)	101.221s (+32.9% 🔺)	0.923s	1	1.76x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	90.866s (~)	91.861s (~)	0.995s	1	1.00x
▲ Vercel	Nitro	91.268s (-4.6%)	92.346s (-5.0% 🟢)	1.078s	1	1.00x
▲ Vercel	Next.js (Turbopack)	91.555s (-1.0%)	93.204s (~)	1.649s	1	1.01x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.398s (-0.7%)	2.004s (~)	0.606s	15	1.00x
💻 Local	Express	1.424s (~)	2.005s (~)	0.580s	15	1.02x
🐘 Postgres	Express	2.348s (-4.5%)	3.013s (~)	0.665s	10	1.68x
🐘 Postgres	Nitro	2.442s (+5.9% 🔺)	3.013s (~)	0.571s	10	1.75x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.496s (-3.2%)	3.417s (-2.8%)	0.921s	9	1.00x
▲ Vercel	Express	2.515s (+8.7% 🔺)	3.214s (+2.8%)	0.699s	10	1.01x
▲ Vercel	Next.js (Turbopack)	4.053s (+73.1% 🔺)	5.079s (+66.2% 🔺)	1.026s	6	1.62x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	2.547s (~)	3.007s (~)	0.460s	10	1.00x
💻 Local	Nitro	2.568s (+1.1%)	3.007s (~)	0.439s	10	1.01x
🐘 Postgres	Express	8.871s (+12.2% 🔺)	9.280s (+8.8% 🔺)	0.409s	4	3.48x
🐘 Postgres	Nitro	8.936s (+7.6% 🔺)	9.279s (+2.7%)	0.343s	4	3.51x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.755s (+1.8%)	3.570s (+3.0%)	0.815s	9	1.00x
▲ Vercel	Next.js (Turbopack)	2.831s (+5.4% 🔺)	3.669s (+10.3% 🔺)	0.838s	9	1.03x
▲ Vercel	Nitro	3.091s (+13.4% 🔺)	4.129s (+10.0% 🔺)	1.038s	8	1.12x

🔍 Observability: Express | Next.js (Turbopack) | Nitro

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	7.266s (+0.6%)	8.021s (~)	0.755s	4	1.00x
💻 Local	Nitro	7.453s (+2.1%)	8.019s (~)	0.566s	4	1.03x
🐘 Postgres	Nitro	50.922s (~)	51.130s (~)	0.208s	1	7.01x
🐘 Postgres	Express	51.891s (+32.6% 🔺)	52.140s (+30.0% 🔺)	0.249s	1	7.14x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	3.100s (-9.9% 🟢)	4.213s (-10.4% 🟢)	1.113s	8	1.00x
▲ Vercel	Nitro	5.555s (+30.6% 🔺)	6.979s (+32.2% 🔺)	1.424s	5	1.79x
▲ Vercel	Next.js (Turbopack)	5.972s (+94.0% 🔺)	7.273s (+82.1% 🔺)	1.301s	6	1.93x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.431s (-1.2%)	2.005s (~)	0.574s	15	1.00x
💻 Local	Express	1.444s (+2.3%)	2.004s (~)	0.560s	15	1.01x
🐘 Postgres	Nitro	2.056s (-10.8% 🟢)	2.922s (+6.6% 🔺)	0.866s	11	1.44x
🐘 Postgres	Express	2.265s (+4.2%)	3.013s (+16.1% 🔺)	0.748s	10	1.58x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.897s (-18.0% 🟢)	3.815s (-13.7% 🟢)	0.918s	8	1.00x
▲ Vercel	Next.js (Turbopack)	3.083s (+17.1% 🔺)	4.004s (+19.5% 🔺)	0.921s	8	1.06x
▲ Vercel	Express	9.347s (+205.6% 🔺)	10.133s (+160.5% 🔺)	0.786s	3	3.23x

🔍 Observability: Nitro | Next.js (Turbopack) | Express

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	2.692s (+1.3%)	3.007s (~)	0.315s	10	1.00x
💻 Local	Nitro	2.733s (+2.6%)	3.008s (~)	0.276s	10	1.01x
🐘 Postgres	Express	9.613s (-16.1% 🟢)	10.027s (-16.7% 🟢)	0.414s	4	3.57x
🐘 Postgres	Nitro	10.520s (-11.4% 🟢)	11.365s (-8.1% 🟢)	0.845s	3	3.91x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.470s (-34.9% 🟢)	3.268s (-29.0% 🟢)	0.798s	10	1.00x
▲ Vercel	Nitro	2.576s (-0.7%)	3.460s (+2.5%)	0.884s	9	1.04x
▲ Vercel	Next.js (Turbopack)	3.619s (+5.6% 🔺)	4.670s (+16.3% 🔺)	1.051s	7	1.47x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	7.646s (-4.2%)	8.018s (-5.9% 🟢)	0.372s	4	1.00x
💻 Local	Nitro	7.942s (+2.0%)	8.269s (+3.1%)	0.327s	4	1.04x
🐘 Postgres	Nitro	48.203s (-4.6%)	49.109s (-3.9%)	0.906s	1	6.30x
🐘 Postgres	Express	50.615s (-3.5%)	51.106s (-3.8%)	0.491s	1	6.62x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.108s (-21.6% 🟢)	4.459s (-16.4% 🟢)	1.350s	7	1.00x
▲ Vercel	Express	3.228s (-16.5% 🟢)	4.261s (-11.6% 🟢)	1.033s	8	1.04x
▲ Vercel	Next.js (Turbopack)	3.749s (+9.3% 🔺)	5.126s (+19.1% 🔺)	1.377s	6	1.21x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Stream Benchmarks (includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.170s (-7.4% 🟢)	1.002s (~)	0.010s (~)	1.016s (~)	0.845s	10	1.00x
💻 Local	Express	0.174s (+1.5%)	1.002s (~)	0.010s (-7.2% 🟢)	1.015s (~)	0.841s	10	1.02x
🐘 Postgres	Express	2.404s (+11.9% 🔺)	2.638s (-8.9% 🟢)	0.001s (-6.7% 🟢)	3.014s (~)	0.610s	10	14.12x
🐘 Postgres	Nitro	2.434s (+86.2% 🔺)	2.608s (+50.4% 🔺)	0.001s (~)	3.014s (+49.7% 🔺)	0.580s	10	14.29x
💻 Local	Next.js (Turbopack)	⚠️ missing	-	-	-	-	-
🐘 Postgres	Next.js (Turbopack)	⚠️ missing	-	-	-	-	-

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	1.897s (-6.8% 🟢)	2.359s (-6.6% 🟢)	0.186s (-1.5%)	2.999s (-8.5% 🟢)	1.101s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.167s (+8.3% 🔺)	2.784s (+17.0% 🔺)	0.496s (-22.0% 🟢)	3.947s (+12.9% 🔺)	1.780s	10	1.14x
▲ Vercel	Nitro	2.184s (+6.7% 🔺)	2.827s (+8.0% 🔺)	0.279s (+43.8% 🔺)	3.645s (+4.8%)	1.460s	10	1.15x

🔍 Observability: Express | Next.js (Turbopack) | Nitro

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	6/12
🐘 Postgres	Express	8/12
▲ Vercel	Express	8/12

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	💻 Local	9/12
Next.js (Turbopack)	▲ Vercel	12/12
Nitro	💻 Local	9/12

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)

📋 View full workflow run

- Remove `npx workflow start` from debugging section (args can't easily be passed via CLI) - Mention --json and --help flags for CLI inspection - Add reminder to check AI docs for DurableAgent details Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

johnlindquist

skill looks solid

…l-streaming

pranaygp and others added 2 commits February 15, 2026 21:20

chore: add changeset

0f3d5e8

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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pranaygp commented Feb 16, 2026

View reviewed changes

Comment thread skills/workflow/SKILL.md Outdated

pranaygp commented Feb 16, 2026

View reviewed changes

Comment thread skills/workflow/SKILL.md Outdated

pranaygp commented Feb 16, 2026

View reviewed changes

Comment thread skills/workflow/SKILL.md

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docs: add skill version bump rule to CLAUDE.md

59fcd2b

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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johnlindquist approved these changes Feb 19, 2026

View reviewed changes

Merge branch 'main' into fix/improve-workflow-api-stub-error-and-skil…

e50a10f

…l-streaming

vercel-release-bot mentioned this pull request Feb 19, 2026

Version Packages (beta) #1131

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Test plan

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🧪 E2E Test Results

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❌ Failed Tests

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📊 Benchmark Results

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

💻 Local Development

▲ Production (Vercel)

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