fix: globalThis singleton for step context storage (#839) by VaguelySerious · Pull Request #1408 · vercel/workflow

VaguelySerious · 2026-03-16T22:26:06Z

Closes #839

Convert contextStorage AsyncLocalStorage from module-scoped to a globalThis singleton using Symbol.for(). This prevents esbuild's module scope duplication from creating separate ALS instances, which caused AsyncLocalStorage.getStore() to return undefined inside tool execute() callbacks.

Also in #1338 out of necessity, but duplicated out to land earlier and test separately.

Convert contextStorage AsyncLocalStorage from module-scoped to a globalThis singleton using Symbol.for(). This prevents esbuild's module scope duplication from creating separate ALS instances, which caused AsyncLocalStorage.getStore() to return undefined inside tool execute() callbacks. Cherry-picked from 8ea3f89 (peter/v2-flow), excluding unrelated v2-flow runtime changes. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

changeset-bot · 2026-03-16T22:26:10Z

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vercel · 2026-03-16T22:26:12Z

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github-actions · 2026-03-16T22:26:16Z

📊 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	0.035s (-35.7% 🟢)	1.005s (~)	0.970s	10	1.00x
💻 Local	Express	0.042s (+1.2%)	1.005s (~)	0.963s	10	1.20x
🌐 Redis	Next.js (Turbopack)	0.052s	1.005s	0.953s	10	1.49x
💻 Local	Next.js (Turbopack)	0.054s	1.006s	0.952s	10	1.56x
🐘 Postgres	Express	0.058s (-3.0%)	1.012s (-0.7%)	0.954s	10	1.67x
🐘 Postgres	Next.js (Turbopack)	0.059s	1.012s	0.954s	10	1.68x
🐘 Postgres	Nitro	0.060s (~)	1.011s (~)	0.951s	10	1.74x
🌐 MongoDB	Next.js (Turbopack)	0.117s	1.008s	0.892s	10	3.35x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	0.424s (-28.4% 🟢)	2.340s (-12.3% 🟢)	1.916s	10	1.00x
▲ Vercel	Nitro	0.444s (-6.5% 🟢)	2.509s (~)	2.065s	10	1.05x
▲ Vercel	Next.js (Turbopack)	0.495s (-17.3% 🟢)	2.598s (+16.8% 🔺)	2.103s	10	1.17x

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

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.087s (-3.5%)	2.006s (~)	0.919s	10	1.00x
💻 Local	Next.js (Turbopack)	1.121s	2.006s	0.885s	10	1.03x
🌐 Redis	Next.js (Turbopack)	1.122s	2.007s	0.885s	10	1.03x
💻 Local	Express	1.130s (~)	2.006s (~)	0.876s	10	1.04x
🐘 Postgres	Next.js (Turbopack)	1.141s	2.013s	0.872s	10	1.05x
🐘 Postgres	Express	1.142s (+2.1%)	2.011s (~)	0.869s	10	1.05x
🐘 Postgres	Nitro	1.145s (~)	2.012s (~)	0.867s	10	1.05x
🌐 MongoDB	Next.js (Turbopack)	1.317s	2.009s	0.692s	10	1.21x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	1.996s (-6.1% 🟢)	3.679s (-11.2% 🟢)	1.682s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.041s (-2.2%)	3.713s (+9.6% 🔺)	1.672s	10	1.02x
▲ Vercel	Express	2.063s (-3.6%)	3.369s (-17.3% 🟢)	1.306s	10	1.03x

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

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.602s (-3.0%)	11.021s (~)	0.419s	3	1.00x
🌐 Redis	Next.js (Turbopack)	10.753s	11.022s	0.269s	3	1.01x
💻 Local	Next.js (Turbopack)	10.809s	11.025s	0.216s	3	1.02x
🐘 Postgres	Next.js (Turbopack)	10.864s	11.040s	0.176s	3	1.02x
🐘 Postgres	Nitro	10.886s (-0.9%)	11.043s (-5.7% 🟢)	0.157s	3	1.03x
💻 Local	Express	10.893s (~)	11.022s (~)	0.130s	3	1.03x
🐘 Postgres	Express	10.958s (+2.0%)	11.042s (~)	0.083s	3	1.03x
🌐 MongoDB	Next.js (Turbopack)	12.283s	13.023s	0.740s	3	1.16x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	16.634s (-14.6% 🟢)	18.013s (-14.6% 🟢)	1.379s	2	1.00x
▲ Vercel	Nitro	17.730s (+7.3% 🔺)	19.518s (+8.7% 🔺)	1.789s	2	1.07x
▲ Vercel	Next.js (Turbopack)	18.249s (+7.9% 🔺)	19.886s (+8.5% 🔺)	1.637s	2	1.10x

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

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	26.720s (-2.9%)	27.051s (-3.6%)	0.331s	3	1.00x
🌐 Redis	Next.js (Turbopack)	26.726s	27.048s	0.322s	3	1.00x
🐘 Postgres	Next.js (Turbopack)	27.044s	27.396s	0.352s	3	1.01x
🐘 Postgres	Nitro	27.139s (~)	28.065s (~)	0.926s	3	1.02x
🐘 Postgres	Express	27.213s (+1.8%)	28.066s (+3.7%)	0.853s	3	1.02x
💻 Local	Next.js (Turbopack)	27.335s	28.054s	0.719s	3	1.02x
💻 Local	Express	27.446s (~)	28.052s (~)	0.606s	3	1.03x
🌐 MongoDB	Next.js (Turbopack)	30.471s	31.044s	0.572s	2	1.14x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	42.227s (-9.0% 🟢)	43.855s (-9.4% 🟢)	1.628s	2	1.00x
▲ Vercel	Nitro	43.431s (-1.0%)	45.655s (+0.5%)	2.224s	2	1.03x
▲ Vercel	Next.js (Turbopack)	44.504s (+2.1%)	46.181s (+2.4%)	1.677s	2	1.05x

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

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🌐 Redis	🥇 Next.js (Turbopack)	53.318s	54.097s	0.780s	2	1.00x
🐘 Postgres	Next.js (Turbopack)	54.084s	54.605s	0.521s	2	1.01x
🐘 Postgres	Express	54.264s (+1.8%)	55.107s (+1.9%)	0.843s	2	1.02x
🐘 Postgres	Nitro	54.427s (~)	55.100s (~)	0.673s	2	1.02x
💻 Local	Nitro	54.856s (-3.3%)	55.098s (-3.5%)	0.242s	2	1.03x
💻 Local	Next.js (Turbopack)	56.028s	56.104s	0.076s	2	1.05x
💻 Local	Express	56.460s (~)	57.101s (~)	0.641s	2	1.06x
🌐 MongoDB	Next.js (Turbopack)	60.915s	61.079s	0.164s	2	1.14x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	92.321s (-6.5% 🟢)	94.523s (-5.7% 🟢)	2.202s	1	1.00x
▲ Vercel	Nitro	94.154s (~)	96.113s (~)	1.959s	1	1.02x
▲ Vercel	Next.js (Turbopack)	96.103s (~)	97.577s (-0.7%)	1.474s	1	1.04x

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

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🌐 Redis	🥇 Next.js (Turbopack)	1.294s	2.006s	0.712s	15	1.00x
🐘 Postgres	Express	1.413s (+5.3% 🔺)	2.011s (~)	0.599s	15	1.09x
🐘 Postgres	Nitro	1.439s (+2.4%)	2.012s (~)	0.573s	15	1.11x
🐘 Postgres	Next.js (Turbopack)	1.445s	2.013s	0.568s	15	1.12x
💻 Local	Nitro	1.458s (-4.1%)	2.006s (~)	0.548s	15	1.13x
💻 Local	Next.js (Turbopack)	1.496s	2.006s	0.509s	15	1.16x
💻 Local	Express	1.503s (~)	2.006s (~)	0.502s	15	1.16x
🌐 MongoDB	Next.js (Turbopack)	2.178s	3.010s	0.832s	10	1.68x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.318s (-12.9% 🟢)	3.701s (-16.4% 🟢)	1.383s	9	1.00x
▲ Vercel	Nitro	2.568s (~)	4.075s (+2.0%)	1.507s	8	1.11x
▲ Vercel	Next.js (Turbopack)	2.783s (+18.3% 🔺)	4.308s (+13.8% 🔺)	1.525s	8	1.20x

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

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	2.593s (-11.9% 🟢)	3.007s (-10.0% 🟢)	0.415s	10	1.00x
🐘 Postgres	Express	2.603s (+3.9%)	3.014s (~)	0.412s	10	1.00x
🌐 Redis	Next.js (Turbopack)	2.603s	3.009s	0.406s	10	1.00x
🐘 Postgres	Nitro	2.607s (~)	3.114s (+3.3%)	0.506s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	2.611s	3.013s	0.402s	10	1.01x
💻 Local	Next.js (Turbopack)	2.852s	3.108s	0.256s	10	1.10x
💻 Local	Express	2.958s (+2.1%)	3.308s (+3.1%)	0.349s	10	1.14x
🌐 MongoDB	Next.js (Turbopack)	4.742s	5.345s	0.603s	6	1.83x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.377s (-18.9% 🟢)	3.660s (-27.3% 🟢)	1.284s	9	1.00x
▲ Vercel	Express	2.726s (-7.7% 🟢)	3.990s (-11.8% 🟢)	1.265s	8	1.15x
▲ Vercel	Next.js (Turbopack)	3.171s (+22.5% 🔺)	4.769s (+6.9% 🔺)	1.598s	7	1.33x

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

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.937s (-3.1%)	4.445s (-6.1% 🟢)	0.508s	7	1.00x
🐘 Postgres	Nitro	4.101s (+3.1%)	4.590s (+3.3%)	0.489s	7	1.04x
🌐 Redis	Next.js (Turbopack)	4.160s	5.012s	0.851s	6	1.06x
🐘 Postgres	Next.js (Turbopack)	4.610s	5.351s	0.742s	6	1.17x
💻 Local	Nitro	6.724s (-19.1% 🟢)	7.015s (-22.2% 🟢)	0.291s	5	1.71x
💻 Local	Next.js (Turbopack)	7.241s	7.767s	0.526s	4	1.84x
💻 Local	Express	8.360s (+3.9%)	9.021s (+5.8% 🔺)	0.661s	4	2.12x
🌐 MongoDB	Next.js (Turbopack)	9.771s	10.353s	0.582s	3	2.48x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.875s (-18.0% 🟢)	4.099s (-17.6% 🟢)	1.224s	8	1.00x
▲ Vercel	Express	2.924s (-1.6%)	3.955s (-24.3% 🟢)	1.031s	8	1.02x
▲ Vercel	Next.js (Turbopack)	3.551s (-12.3% 🟢)	5.089s (-9.9% 🟢)	1.538s	6	1.24x

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

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🌐 Redis	🥇 Next.js (Turbopack)	1.274s	2.006s	0.733s	15	1.00x
🐘 Postgres	Nitro	1.392s (~)	2.012s (~)	0.620s	15	1.09x
🐘 Postgres	Express	1.430s (+9.6% 🔺)	2.013s (~)	0.583s	15	1.12x
🐘 Postgres	Next.js (Turbopack)	1.449s	2.012s	0.563s	15	1.14x
💻 Local	Nitro	1.470s (-7.1% 🟢)	2.006s (~)	0.536s	15	1.15x
💻 Local	Express	1.522s (+0.5%)	2.005s (~)	0.484s	15	1.19x
💻 Local	Next.js (Turbopack)	1.533s	2.006s	0.474s	15	1.20x
🌐 MongoDB	Next.js (Turbopack)	2.173s	3.010s	0.836s	10	1.71x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.103s (-9.6% 🟢)	3.418s (-20.3% 🟢)	1.315s	9	1.00x
▲ Vercel	Nitro	2.296s (-7.5% 🟢)	4.162s (-8.1% 🟢)	1.866s	8	1.09x
▲ Vercel	Next.js (Turbopack)	2.432s (+6.6% 🔺)	4.002s (+4.0%)	1.570s	8	1.16x

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

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🌐 Redis	🥇 Next.js (Turbopack)	2.542s	3.008s	0.466s	10	1.00x
🐘 Postgres	Express	2.549s (+4.7%)	3.012s (~)	0.463s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	2.610s	3.013s	0.403s	10	1.03x
🐘 Postgres	Nitro	2.623s (+4.1%)	3.013s (~)	0.390s	10	1.03x
💻 Local	Nitro	2.729s (-14.2% 🟢)	3.008s (-25.0% 🟢)	0.278s	10	1.07x
💻 Local	Express	2.970s (-2.7%)	3.341s (-11.1% 🟢)	0.371s	9	1.17x
💻 Local	Next.js (Turbopack)	2.995s	3.564s	0.570s	9	1.18x
🌐 MongoDB	Next.js (Turbopack)	4.682s	5.178s	0.496s	6	1.84x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.354s (-10.1% 🟢)	3.352s (-27.7% 🟢)	0.998s	9	1.00x
▲ Vercel	Nitro	2.870s (+15.8% 🔺)	4.608s (~)	1.738s	7	1.22x
▲ Vercel	Next.js (Turbopack)	2.884s (+17.6% 🔺)	4.646s (+18.8% 🔺)	1.763s	8	1.23x

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

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	4.003s (-2.1%)	4.586s (~)	0.583s	7	1.00x
🐘 Postgres	Nitro	4.079s (+3.6%)	4.593s (+3.3%)	0.515s	7	1.02x
🌐 Redis	Next.js (Turbopack)	4.228s	4.868s	0.640s	7	1.06x
🐘 Postgres	Next.js (Turbopack)	4.330s	5.017s	0.687s	6	1.08x
💻 Local	Nitro	7.308s (-17.4% 🟢)	8.015s (-13.6% 🟢)	0.708s	4	1.83x
💻 Local	Express	8.407s (-3.7%)	9.023s (-2.7%)	0.616s	4	2.10x
💻 Local	Next.js (Turbopack)	8.535s	9.017s	0.482s	4	2.13x
🌐 MongoDB	Next.js (Turbopack)	10.036s	10.686s	0.650s	3	2.51x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	2.761s (+2.5%)	3.994s (-15.4% 🟢)	1.232s	8	1.00x
▲ Vercel	Nitro	2.765s (-3.3%)	4.138s (-13.4% 🟢)	1.373s	8	1.00x
▲ Vercel	Next.js (Turbopack)	3.160s (-48.7% 🟢)	4.640s (-40.7% 🟢)	1.480s	7	1.14x

🔍 Observability: Express | Nitro | 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	0.133s (-35.0% 🟢)	1.003s (~)	0.009s (-22.8% 🟢)	1.015s (~)	0.882s	10	1.00x
💻 Local	Next.js (Turbopack)	0.169s	1.001s	0.012s	1.018s	0.849s	10	1.26x
🌐 Redis	Next.js (Turbopack)	0.183s	1.000s	0.002s	1.008s	0.825s	10	1.37x
💻 Local	Express	0.195s (-0.5%)	1.003s (~)	0.011s (-1.8%)	1.017s (~)	0.822s	10	1.46x
🐘 Postgres	Next.js (Turbopack)	0.201s	1.001s	0.002s	1.012s	0.811s	10	1.51x
🐘 Postgres	Express	0.222s (+33.9% 🔺)	0.996s (~)	0.002s (+7.1% 🔺)	1.012s (~)	0.790s	10	1.67x
🐘 Postgres	Nitro	0.236s (+4.1%)	0.995s (~)	0.001s (-31.6% 🟢)	1.013s (~)	0.776s	10	1.77x
🌐 MongoDB	Next.js (Turbopack)	0.504s	0.954s	0.002s	1.010s	0.506s	10	3.78x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Express	1.635s (-11.0% 🟢)	2.615s (-8.8% 🟢)	0.007s (+22.2% 🔺)	3.158s (-9.1% 🟢)	1.523s	10	1.00x
▲ Vercel	Next.js (Turbopack)	1.708s (+9.4% 🔺)	2.631s (-5.9% 🟢)	0.004s (+9.8% 🔺)	3.270s (-2.7%)	1.563s	10	1.04x
▲ Vercel	Nitro	1.921s (+18.6% 🔺)	2.842s (+4.0%)	0.328s (+5981.5% 🔺)	3.880s (+18.7% 🔺)	1.959s	10	1.18x

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

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	12/12
🐘 Postgres	Express	6/12
▲ Vercel	Express	9/12

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	5/12
Next.js (Turbopack)	🌐 Redis	8/12
Nitro	💻 Local	5/12

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

github-actions · 2026-03-16T22:26:16Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	560	0	67	627
✅ 💻 Local Development	600	0	84	684
✅ 📦 Local Production	600	0	84	684
❌ 🐘 Local Postgres	599	1	84	684
✅ 🪟 Windows	54	0	3	57
❌ 🌍 Community Worlds	116	55	15	186
✅ 📋 Other	144	0	27	171
Total	2673	56	364	3093

❌ Failed Tests

🐘 Local Postgres (1 failed)

fastify-stable (1 failed):

webhookWorkflow

🌍 Community Worlds (55 failed)

mongodb (3 failed):

hookWorkflow is not resumable via public webhook endpoint
webhookWorkflow
concurrent hook token conflict - two workflows cannot use the same hook token simultaneously

redis (2 failed):

hookWorkflow is not resumable via public webhook endpoint
concurrent hook token conflict - two workflows cannot use the same hook token simultaneously

turso (50 failed):

addTenWorkflow
addTenWorkflow
wellKnownAgentWorkflow (.well-known/agent)
should work with react rendering in step
promiseAllWorkflow
promiseRaceWorkflow
promiseAnyWorkflow
importedStepOnlyWorkflow
hookWorkflow
hookWorkflow is not resumable via public webhook endpoint
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 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
hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running
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
hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep
sleepWithSequentialStepsWorkflow - sequential steps work with concurrent sleep (control)

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	50	7
✅ example	50	7
✅ express	50	7
✅ fastify	50	7
✅ hono	50	7
✅ nextjs-turbopack	55	2
✅ nextjs-webpack	55	2
✅ nitro	50	7
✅ nuxt	50	7
✅ sveltekit	50	7
✅ vite	50	7

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	48	9
✅ express-stable	48	9
✅ fastify-stable	48	9
✅ hono-stable	48	9
✅ nextjs-turbopack-canary	54	3
✅ nextjs-turbopack-stable	54	3
✅ nextjs-webpack-canary	54	3
✅ nextjs-webpack-stable	54	3
✅ nitro-stable	48	9
✅ nuxt-stable	48	9
✅ sveltekit-stable	48	9
✅ vite-stable	48	9

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	48	9
✅ express-stable	48	9
✅ fastify-stable	48	9
✅ hono-stable	48	9
✅ nextjs-turbopack-canary	54	3
✅ nextjs-turbopack-stable	54	3
✅ nextjs-webpack-canary	54	3
✅ nextjs-webpack-stable	54	3
✅ nitro-stable	48	9
✅ nuxt-stable	48	9
✅ sveltekit-stable	48	9
✅ vite-stable	48	9

❌ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	48	0	9
✅ express-stable	48	0	9
❌ fastify-stable	47	1	9
✅ hono-stable	48	0	9
✅ nextjs-turbopack-canary	54	0	3
✅ nextjs-turbopack-stable	54	0	3
✅ nextjs-webpack-canary	54	0	3
✅ nextjs-webpack-stable	54	0	3
✅ nitro-stable	48	0	9
✅ nuxt-stable	48	0	9
✅ sveltekit-stable	48	0	9
✅ vite-stable	48	0	9

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	54	0	3

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	3	0	2
❌ mongodb	51	3	3
✅ redis-dev	3	0	2
❌ redis	52	2	3
✅ turso-dev	3	0	2
❌ turso	4	50	3

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	48	9
✅ e2e-local-postgres-nest-stable	48	9
✅ e2e-local-prod-nest-stable	48	9

📋 View full workflow run

❌ Some E2E test jobs failed:

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

Check the workflow run for details.

vercel bot deployed to Preview – workflow-swc-playground March 16, 2026 22:26 View deployment

vercel bot deployed to Preview – workbench-vite-workflow March 16, 2026 22:26 View deployment

vercel bot deployed to Preview – workbench-fastify-workflow March 16, 2026 22:26 View deployment

vercel bot deployed to Preview – workbench-nitro-workflow March 16, 2026 22:26 View deployment

vercel bot deployed to Preview – workbench-hono-workflow March 16, 2026 22:26 View deployment

vercel bot deployed to Preview – example-workflow March 16, 2026 22:26 View deployment

vercel bot deployed to Preview – workbench-astro-workflow March 16, 2026 22:26 View deployment

vercel bot deployed to Preview – workbench-sveltekit-workflow March 16, 2026 22:27 View deployment

vercel bot deployed to Preview – workbench-express-workflow March 16, 2026 22:27 View deployment

vercel bot deployed to Preview – workflow-nest March 16, 2026 22:27 View deployment

vercel bot deployed to Preview – workbench-nuxt-workflow March 16, 2026 22:27 View deployment

vercel bot deployed to Preview – example-nextjs-workflow-turbopack March 16, 2026 22:27 View deployment

vercel bot deployed to Preview – workflow-docs March 16, 2026 22:27 View deployment

vercel bot deployed to Preview – example-nextjs-workflow-webpack March 16, 2026 22:27 View deployment

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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)

Summary

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🧪 E2E Test Results

Summary

❌ Failed Tests

Details by Category

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VaguelySerious commented Mar 16, 2026 •

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