[test] workflow-server PR #836

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Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, v0	Aug 21, 2026 9:51pm
example-nextjs-workflow-webpack	Ready	Preview, v0	Aug 21, 2026 9:51pm
example-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-astro-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-express-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-fastify-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-hono-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-nestjs-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-nitro-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-nuxt-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-python-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-sveltekit-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-tanstack-start-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workbench-vite-workflow	Ready	Preview, v0	Aug 21, 2026 9:51pm
workflow-docs	Ready	Preview, v0	Aug 21, 2026 9:51pm
workflow-swc-playground	Ready	Preview, v0	Aug 21, 2026 9:51pm
workflow-tarballs	Ready	Preview, v0	Aug 21, 2026 9:51pm
workflow-web	Ready	Preview, v0	Aug 21, 2026 9:51pm

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

❌ Failed E2E Tests

▲ Vercel Production (38 failed)

astro-quickjs (3 failed):

• AbortController abortListenerWorkflow: signal.addEventListener fires on the deserialized step signal
• AbortController abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires
• AbortController abortDeterministicBranchFromStepWorkflow: branches stay consistent when abort comes from a step

example-node (1 failed):

• distributedAbortController - reconnect to existing controller | wrun_41M0K545DH0GPMDPFTXY6GK7ZG | 🔍 observability

example-quickjs (1 failed):

• AbortController abortDeterministicBranchFromStepWorkflow: branches stay consistent when abort comes from a step

express-node (1 failed):

• hookAdoptOwnerResultWorkflow - duplicate adopts the owner result via conflict.returnValue | wrun_41M0K51Q0W0GJV49AJ4JK0DG8P | 🔍 observability

express-quickjs (2 failed):

• AbortController abortFromStepWorkflow: step abort cancels an in-flight sibling step
• AbortController abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals

fastify-node (1 failed):

• distributedAbortController - reconnect to existing controller | wrun_41M0K545DH0GPMDPFTXY6GK7ZG | 🔍 observability

fastify-quickjs (2 failed):

• AbortController abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals
• AbortController abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires

nest-quickjs (1 failed):

• AbortController abortFromStepWorkflow: step abort cancels an in-flight sibling step

nextjs-turbopack-quickjs (2 failed):

• AbortController abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires
• AbortController abortDeterministicBranchFromStepWorkflow: branches stay consistent when abort comes from a step

nextjs-webpack-node (1 failed):

• distributedAbortController - reconnect to existing controller | wrun_41M0K545DH0GPMDPFTXY6GK7ZG | 🔍 observability

nextjs-webpack-quickjs (1 failed):

• AbortController abortDeterministicBranchFromStepWorkflow: branches stay consistent when abort comes from a step

nitro-quickjs (2 failed):

• AbortController abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals
• AbortController abortListenerWorkflow: signal.addEventListener fires on the deserialized step signal

nuxt-quickjs (2 failed):

• AbortController abortListenerWorkflow: signal.addEventListener fires on the deserialized step signal
• AbortController abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires

python-node (8 failed):

• promiseAllWorkflow | wrun_41M0K4Y3600GZTFWDEEJC7VP1G | 🔍 observability
• sleepingWorkflow | wrun_41M0K4YR7W0GY5Z02YZA5Q5CN1 | 🔍 observability
• parallelSleepWorkflow | wrun_41M0K4YRBZ0GNSDWKHYRVX2VFJ | 🔍 observability
• nullByteWorkflow | wrun_41M0K4YZSV0GGSNXWARXE9TQEJ | 🔍 observability
• cancelRun - cancelling a running workflow | wrun_41M0K534SM0GNJENCGN0CVD7RQ | 🔍 observability
• cancelRun via CLI - cancelling a running workflow | wrun_41M0K539880GG2NYF7GNBMVZCE | 🔍 observability
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0K53BRM0GS9QR4YA7J5KTEE | 🔍 observability
• resilient start: addTenWorkflow completes when run_created returns 500 | wrun_41M0K53TW80GQEMZXEAM09CCPJ | 🔍 observability

sveltekit-quickjs (1 failed):

• hookSupersedeOwnerWorkflow - duplicate cancels the owner and claims the released token | wrun_41M0K51YEX0GS9HFFGXC70QN76 | 🔍 observability

tanstack-start-quickjs (2 failed):

• AbortController abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals
• AbortController abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires

vite-quickjs (7 failed):

• AbortController abortFromStepWorkflow: step abort cancels an in-flight sibling step
• AbortController abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals
• AbortController abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires
• AbortController abortDeterministicBranchFromStepWorkflow: branches stay consistent when abort comes from a step
• AbortController abortHookOrderingWorkflow [listener-first-abort-first]: addEventListener → hook.then → abort() → resumeHook
• AbortController abortHookOrderingWorkflow [listener-first-hook-first]: addEventListener → hook.then → resumeHook → abort()
• AbortController abortHookOrderingWorkflow [hook-first-abort-first]: hook.then → addEventListener → abort() → resumeHook

vercel-ws-transport (1 failed)

express (1 failed):

• resume-or-start route pattern - resumeHook retried after start() reaches the new run | wrun_41M0K51YST0GXEJ90AQYC4JJ90

⚠️ Flaky E2E Tests (passed on retry)

These tests failed at least once and passed on a retry. A recurring entry here is a real race worth investigating.

23 flaky tests

• abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals (astro)
• abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals (nest)
• abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals (nuxt)
• abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals (sveltekit)
• abortDeterministicBranchFromStepWorkflow: branches stay consistent when abort comes from a step (nuxt)
• abortFromStepWorkflow: step abort cancels an in-flight sibling step (example)
• abortListenerWorkflow: signal.addEventListener fires on the deserialized step signal (nest)
• abortListenerWorkflow: signal.addEventListener fires on the deserialized step signal (tanstack-start)
• abortReasonWorkflow: abort reason preserved across boundaries (vite)
• abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires (nest)
• abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires (nextjs-webpack)
• distributedAbortController - manual abort triggers signal (express)
• distributedAbortController - manual abort triggers signal (nextjs-turbopack)
• distributedAbortController - reconnect to existing controller (nitro)
• hookAdoptOwnerResultWorkflow - duplicate adopts the owner result via conflict.returnValue (nuxt)
• hookMinRetentionWorkflow - terminal Hook cannot resume and its token stays unavailable (vite)
• hookSignalOwnerWorkflow - duplicate forwards its payload to the owner via resumeHook (astro)
• hookSignalOwnerWorkflow - duplicate forwards its payload to the owner via resumeHook (vite)
• hookSupersedeOwnerWorkflow - duplicate cancels the owner and claims the released token (astro)
• hookSupersedeOwnerWorkflow - duplicate cancels the owner and claims the released token (vite)
• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race (nextjs-turbopack)
• webhookWorkflow (fastify)
• webhookWorkflow (hono)

🛠 Infra Events (absorbed by the harness)

Platform anomalies the e2e harness detected and worked around (e.g. a run the queue never picked up, replaced by a fresh run). Clustered timestamps indicate a backend blip; a steady drip indicates a platform issue worth escalating.

14 infra events

• cold-start-warmup · suite warmup (python) · at 21:51:28Z · abandoned wrun_41M0K4SS8N0GKVVH3JPJ9J12VT · (+7 more)
• run-pickup-stall · parallelSleepWorkflow (python) · at 21:51:44Z · abandoned wrun_41M0K4XE7Z0GWKC7WR6APNBK7C
• run-pickup-stall · promiseAllWorkflow (python) · at 21:51:44Z · abandoned wrun_41M0K4XE7T0GZRWCK7KM7ZV79Z
• run-pickup-stall · nullByteWorkflow (python) · at 21:51:45Z · abandoned wrun_41M0K4XE830GH7TJ78QTWXGJR4
• run-pickup-stall · sleepingWorkflow (python) · at 21:51:45Z · abandoned wrun_41M0K4XE7Z0GWKC7WR6APNBK7B
• run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 21:51:45Z · abandoned wrun_41M0K4XEP70GJF4R0YJPH5F4R8
• run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 21:52:18Z · abandoned wrun_41M0K4YF160GSM2NYTYRRPGRHA
• run-pickup-stall · promiseAllWorkflow (python) · at 21:52:45Z · abandoned wrun_41M0K4Z9RY0GTGA4RPBQHCY395
• run-pickup-stall · sleepingWorkflow (python) · at 21:52:45Z · abandoned wrun_41M0K4Z9SG0GWFMDNQZC2JYMGT
• run-pickup-stall · parallelSleepWorkflow (python) · at 21:52:46Z · abandoned wrun_41M0K4ZA0X0GJ2ARKFS07HJFDE
• run-pickup-stall · nullByteWorkflow (python) · at 21:52:46Z · abandoned wrun_41M0K4ZAT30GS6Z0JTZMEP905Y
• run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 21:53:36Z · abandoned wrun_41M0K4ZEQJ0GG3GDXSF42XNMY1
• run-pickup-stall · sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration (python) · at 21:55:17Z · abandoned wrun_41M0K51C6H0GRB2JDG6Q807ACV
• run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 21:55:17Z · abandoned wrun_41M0K51D280GPR20TQGACZBM24

E2E Test Summary

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	3540	38	742	4320
✅ vercel-multi-region	27	0	0	27
❌ vercel-ws-transport	552	1	87	640
Total	4119	39	829	4987

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro-node	132	0	28
❌ astro-quickjs	129	3	28
❌ example-node	131	1	28
❌ example-quickjs	131	1	28
❌ express-node	131	1	28
❌ express-quickjs	130	2	28
❌ fastify-node	131	1	28
❌ fastify-quickjs	130	2	28
✅ hono-node	132	0	28
✅ hono-quickjs	132	0	28
✅ nest-node	132	0	28
❌ nest-quickjs	131	1	28
✅ nextjs-turbopack-node	157	0	3
❌ nextjs-turbopack-quickjs	155	2	3
❌ nextjs-webpack-node	156	1	3
❌ nextjs-webpack-quickjs	156	1	3
✅ nitro-node	132	0	28
❌ nitro-quickjs	130	2	28
✅ nuxt-node	132	0	28
❌ nuxt-quickjs	130	2	28
❌ python-node	0	8	152
✅ sveltekit-node	151	0	9
❌ sveltekit-quickjs	150	1	9
✅ tanstack-start-node	132	0	28
❌ tanstack-start-quickjs	130	2	28
✅ vite-node	132	0	28
❌ vite-quickjs	125	7	28

✅ vercel-multi-region

App	Passed	Failed	Skipped
✅ nextjs-turbopack	27	0	0

❌ vercel-ws-transport

App	Passed	Failed	Skipped
✅ example	132	0	28
❌ express	131	1	28
✅ nextjs-turbopack	157	0	3
✅ vite	132	0	28

---

📋 View full workflow run

[github-actions]

Sim World

Simulated world deterministic testing for races. Traces

🟠 world-sim scenario book — 1 fail of 41 total

fence=per-spec

scenario	outcome	events	virt	replay	violations
✅ smoke-no-steps	completed	3	0ms	ok	0
✅ smoke-one-step	completed	6	0ms	ok	0
✅ hook-at-step-started	completed	12	0ms	ok	0
✅ hook-at-step-completed	completed	12	0ms	ok	0
✅ hook-at-hook-created	completed	12	0ms	ok	0
✅ deadline-hook-wins	completed	7	1.0h	ok	0
✅ deadline-expires	completed	7	1.0h	ok	0
✅ long-sleep	completed	11	30.0d	ok	0
✅ hook-never-arrives	stalled	3	0ms	skipped	0
✅ step-retries-twice	completed	10	2.0s	ok	0
✅ parallel-steps	completed	9	0ms	ok	0
✅ hook-on-execution-state	completed	12	0ms	ok	0
✅ peek-hook-before-branch	completed	12	0ms	ok	0
✅ peek-hook-after-branch	completed	12	0ms	ok	0
✅ peek-hook-at-registration	completed	12	0ms	ok	0
✅ race-hook-before-probe	completed	12	0ms	ok	0
✅ race-hook-after-probe	completed	12	0ms	ok	0
✅ race-duplicate-delivery	completed	13	0ms	ok	0
✅ attr-hook-before-step	completed	11	0ms	ok	0
✅ attr-hook-after-step	completed	11	0ms	ok	0
✅ attr-from-step-body	completed	13	0ms	ok	0
✅ fork-hook-after-timeout	completed	14	1.0m	ok	0
✅ fork-hook-before-timeout	completed	14	1.0m	ok	0
✅ count-hook-after-timeout	completed	17	1.0m	ok	0
✅ count-hook-before-timeout	completed	20	1.0m	ok	0
✅ stale-read-step-count-fork	completed	20	1.0m	ok	0
✅ stale-read-equal-step-counts	completed	14	1.0m	ok	0
✅ step-vs-step-fork	completed	12	0ms	ok	0
✅ step-vs-step-fork-fenced	completed	12	0ms	ok	0
✅ fence-catches-benign-direction	completed	12	5ms	ok	0
✅ in-flight-before-decision	completed	17	1.0m	ok	0
❌ in-flight-before-decision-counted	completed	17	1.0m	ok	0
✅ in-flight-after-decision	completed	19	2.0m	ok	0
✅ stale-read-step-count-fork-fenced	completed	20	1.0m	ok	0
✅ fork-hook-wins	completed	13	1.0m	ok	0
✅ fork-timeout-wins	completed	13	1.0m	ok	0
✅ unclaimed-payload-under-fork	completed	17	1.0m	ok	0
✅ claimed-payload-under-fork	completed	17	1.0m	ok	0
✅ writers-independent-step-bodies	completed	12	0ms	ok	0
✅ writers-scripted-tempo	completed	12	0ms	ok	0
✅ cancel-mid-step	cancelled	7	0ms	skipped	0

Full trace: world-sim.txt