[test] workflow-server PR #840

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This PR was automatically created to test a workflow-server preview deployment.

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Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, v0	Aug 22, 2026 1:58am
example-nextjs-workflow-webpack	Ready	Preview, v0	Aug 22, 2026 1:58am
example-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-astro-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-express-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-fastify-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-hono-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-nestjs-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-nitro-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-nuxt-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-python-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-sveltekit-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-tanstack-start-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workbench-vite-workflow	Ready	Preview, v0	Aug 22, 2026 1:58am
workflow-docs	Ready	Preview, v0	Aug 22, 2026 1:58am
workflow-swc-playground	Ready	Preview, v0	Aug 22, 2026 1:58am
workflow-tarballs	Ready	Preview, v0	Aug 22, 2026 1:58am
workflow-web	Ready	Preview, v0	Aug 22, 2026 1:58am

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

❌ Failed E2E Tests

▲ Vercel Production (9 failed)

astro-node (1 failed):

• AbortController abortHookOrderingWorkflow [hook-first-hook-first]: hook.then → addEventListener → resumeHook → abort()

python-node (8 failed):

• promiseAllWorkflow | wrun_41M0KJYPWG0GMGCA4PVT1SGBRA | 🔍 observability
• sleepingWorkflow | wrun_41M0KJZPH10GYHM5M9QVFKK0NS | 🔍 observability
• parallelSleepWorkflow | wrun_41M0KJZQD50GGP7MSDTQG17W5K | 🔍 observability
• nullByteWorkflow | wrun_41M0KJZW410GQJEZX1PTYTYX7B | 🔍 observability
• cancelRun - cancelling a running workflow | wrun_41M0KK4K9V0GH8GC9RHP6XES4G | 🔍 observability
• cancelRun via CLI - cancelling a running workflow | wrun_41M0KK4NGZ0GHYHWGHQV074YH0 | 🔍 observability
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0KK4TVP0GV1PFC6TS1ZH8M6 | 🔍 observability
• resilient start: addTenWorkflow completes when run_created returns 500 | wrun_41M0KK5B020GGGJVAN0QWSBSM9 | 🔍 observability

⚠️ 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.

10 flaky tests

• abortHookOrderingWorkflow [listener-first-abort-first]: addEventListener → hook.then → abort() → resumeHook (astro)
• abortReasonWorkflow: abort reason preserved across boundaries (example)
• abortSurvivesReplayWorkflow: controller state consistent across replay (express)
• abortSurvivesReplayWorkflow: controller state consistent across replay (nitro)
• abortSurvivesReplayWorkflow: controller state consistent across replay (tanstack-start)
• abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries (nextjs-turbopack)
• getChunks returns same content as reading the stream (hono)
• getTailIndex returns correct index after stream completes (hono)
• getTailIndex returns correct index after stream completes (nest)
• parallelSleepWorkflow (vite)

🛠 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 01:58:18Z · abandoned wrun_41M0KJXRBD0GV72JP9AWEM24Y2 · (+6 more)
• run-pickup-stall · nullByteWorkflow (python) · at 01:58:35Z · abandoned wrun_41M0KK1DAT0GVRY2WHAJTQ57W9
• run-pickup-stall · sleepingWorkflow (python) · at 01:58:35Z · abandoned wrun_41M0KK1DAP0GTAQH077AXABXAT
• run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 01:58:35Z · abandoned wrun_41M0KK1DRP0GXFC3CH7YT1431A
• run-pickup-stall · parallelSleepWorkflow (python) · at 01:58:35Z · abandoned wrun_41M0KK1DAP0GTAQH077AXABXAV
• run-pickup-stall · promiseAllWorkflow (python) · at 01:58:35Z · abandoned wrun_41M0KK1DAF0GMJPVEJX7TNBG3D
• run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 01:59:08Z · abandoned wrun_41M0KK2DKM0GGYAR7A88CWGH70
• run-pickup-stall · sleepingWorkflow (python) · at 01:59:36Z · abandoned wrun_41M0KK38YZ0GK1FCRJQEWB10Q9
• run-pickup-stall · parallelSleepWorkflow (python) · at 01:59:36Z · abandoned wrun_41M0KK38WB0GWWKAEAN3ADMKM6
• run-pickup-stall · nullByteWorkflow (python) · at 01:59:36Z · abandoned wrun_41M0KK38XY0GJNH4Z0QPZ7EWYT
• run-pickup-stall · promiseAllWorkflow (python) · at 01:59:36Z · abandoned wrun_41M0KK38YR0GMCTJMS3WVF64ZP
• run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 02:00:26Z · abandoned wrun_41M0KK3DJH0GV0DH9RS8J4TC6X
• run-pickup-stall · sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration (python) · at 02:02:08Z · abandoned wrun_41M0KK60RX0GKAA6H24WMNB8KV
• run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 02:02:08Z · abandoned wrun_41M0KK65F30GG8R8B3Z3V0WB0E

E2E Test Summary

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	3569	9	742	4320
✅ vercel-http-transport	817	0	143	960
✅ vercel-multi-region	27	0	0	27
✅ vercel-ws-transport	553	0	87	640
Total	4966	9	972	5947

Details by Category

❌ ▲ Vercel Production

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

✅ vercel-http-transport

App	Passed	Failed	Skipped
✅ example	132	0	28
✅ express	132	0	28
✅ hono	132	0	28
✅ nextjs-turbopack	157	0	3
✅ nitro	132	0	28
✅ vite	132	0	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	132	0	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