[test] workflow-server PR #811

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Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview	Aug 18, 2026 11:47pm
example-nextjs-workflow-webpack	Ready	Preview	Aug 18, 2026 11:47pm
example-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-astro-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-express-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-fastify-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-hono-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-nestjs-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-nitro-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-nuxt-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-python-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-sveltekit-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-tanstack-start-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workbench-vite-workflow	Ready	Preview	Aug 18, 2026 11:47pm
workflow-docs	Ready	Preview, v0	Aug 18, 2026 11:47pm
workflow-swc-playground	Ready	Preview	Aug 18, 2026 11:47pm
workflow-tarballs	Ready	Preview	Aug 18, 2026 11:47pm
workflow-web	Ready	Preview	Aug 18, 2026 11:47pm

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

❌ Failed E2E Tests

▲ Vercel Production (32 failed)

example-node (4 failed):

• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41M0BMH57A0GN8F382CVXQQ5CS | 🔍 observability
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0BNJ3NK0GNWFD47Y2G0RB9Q | 🔍 observability

hono-node (8 failed):

• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41M0BMH57A0GN8F382CVXQQ5CS | 🔍 observability
• parallelSleepWorkflow | wrun_41M0BMPGVF0GGK1P072EJFGY4S | 🔍 observability
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• utf8StreamWorkflow | wrun_41M0BMXE8J0GXHM4K6V625FGJ7 | 🔍 observability
• hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep | wrun_41M0BNH84J0GYY8JDMNR5Z3155 | 🔍 observability
• AbortController abortHookOrderingWorkflow [listener-first-hook-first]: addEventListener → hook.then → resumeHook → abort()
• AbortController abortHookOrderingWorkflow [hook-first-abort-first]: hook.then → addEventListener → abort() → resumeHook

nest-node (3 failed):

• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41M0BMH57A0GN8F382CVXQQ5CS | 🔍 observability
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0BMX1F40GZW8PTEHW2EKRNC | 🔍 observability

sveltekit-node (6 failed):

• hookWorkflow | wrun_41M0BMF6AG0GRS83ZRTVWJVTGM | 🔍 observability
• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41M0BMH57A0GN8F382CVXQQ5CS | 🔍 observability
• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes

tanstack-start-node (5 failed):

• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41M0BMH57A0GN8F382CVXQQ5CS | 🔍 observability
• parallelSleepWorkflow | wrun_41M0BMPGVF0GGK1P072EJFGY4S | 🔍 observability
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• sleepWithSequentialStepsWorkflow - sequential steps work with concurrent sleep (control) | wrun_41M0BNJFE70GG4MK30ZWPYWVEC | 🔍 observability

vite-node (6 failed):

• parallelSleepWorkflow | wrun_41M0BMPGVF0GGK1P072EJFGY4S | 🔍 observability
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• AbortController abortParallelWorkflow: abort cancels all parallel steps
• AbortController abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires

⚠️ 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.

44 flaky tests

• 'hookGetConflictWithPriorStepWorkflow' - hook.getConflict() does not block step execution (nest)
• abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals (sveltekit)
• abortDeterministicBranchFromStepWorkflow: branches stay consistent when abort comes from a step (vite)
• abortFromStepWorkflow: step abort cancels an in-flight sibling step (vite)
• abortHookOrderingWorkflow [hook-first-abort-first]: hook.then → addEventListener → abort() → resumeHook (example)
• abortHookOrderingWorkflow [hook-first-hook-first]: hook.then → addEventListener → resumeHook → abort() (hono)
• abortHookOrderingWorkflow [hook-first-hook-first]: hook.then → addEventListener → resumeHook → abort() (tanstack-start)
• abortHookOrderingWorkflow [listener-first-abort-first]: addEventListener → hook.then → abort() → resumeHook (hono)
• abortHookOrderingWorkflow [listener-first-hook-first]: addEventListener → hook.then → resumeHook → abort() (nest)
• abortReasonWorkflow: abort reason preserved across boundaries (nest)
• abortSurvivesReplayWorkflow: controller state consistent across replay (tanstack-start)
• abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries (example)
• completes but needsApproval is not checked (GAP) (sveltekit)
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE (hono)
• getChunks returns same content as reading the stream (sveltekit)
• getChunks returns same content as reading the stream (tanstack-start)
• getTailIndex returns correct index after stream completes (example)
• getTailIndex returns correct index after stream completes (nest)
• health check (CLI) - workflow health command reports healthy endpoints (tanstack-start)
• hook created by a sfo1 run resolves by token and resumes the run (nextjs-turbopack)
• hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep (nest)
• hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep (tanstack-start)
• hookWorkflow (example)
• hookWorkflow (hono)
• hookWorkflow (nest)
• no startIndex (reads all chunks) (example)
• no startIndex (reads all chunks) (tanstack-start)
• no startIndex (reads all chunks) (vite)
• outputStreamInsideStepWorkflow - getWritable() called inside step functions (example)
• outputStreamInsideStepWorkflow - getWritable() called inside step functions (hono)
• promiseAllWorkflow (python)
• promiseRaceStressTestWorkflow (nest)
• readableStreamWorkflow (hono)
• regular Error retries until success (vite)
• resilient start: addTenWorkflow completes when run_created returns 500 (sveltekit)
• retainedInterleavingWorkflow (vite)
• runClassSerializationWorkflow - Run instances serialize across workflow/step boundaries (nest)
• setAttributesInsideStepWorkflow: step-body calls append attributed native events (nest)
• sleepWinsRaceWorkflow (vite)
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step (sveltekit)
• step throw round-trips FatalError with cause chain to workflow catch (hono)
• stepWinsRaceWorkflow (hono)
• webhookWorkflow (nest)
• writableForwardedFromWorkflowWorkflow (hono)

E2E Test Summary

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	763	32	297	1092
✅ vercel-multi-region	27	0	0	27
Total	790	32	297	1119

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ example-node	124	4	28
❌ hono-node	120	8	28
❌ nest-node	125	3	28
✅ python-node	8	0	148
❌ sveltekit-node	141	6	9
❌ tanstack-start-node	123	5	28
❌ vite-node	122	6	28

✅ vercel-multi-region

App	Passed	Failed	Skipped
✅ nextjs-turbopack	27	0	0

---

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[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