[test] workflow-server PR #810

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Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview	Aug 18, 2026 11:46pm
example-nextjs-workflow-webpack	Ready	Preview	Aug 18, 2026 11:46pm
example-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-astro-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-express-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-fastify-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-hono-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-nestjs-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-nitro-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-nuxt-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-python-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-sveltekit-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-tanstack-start-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workbench-vite-workflow	Ready	Preview	Aug 18, 2026 11:46pm
workflow-docs	Ready	Preview, v0	Aug 18, 2026 11:46pm
workflow-swc-playground	Ready	Preview	Aug 18, 2026 11:46pm
workflow-tarballs	Ready	Preview	Aug 18, 2026 11:46pm
workflow-web	Ready	Preview	Aug 18, 2026 11:46pm

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

❌ Failed E2E Tests

▲ Vercel Production (26 failed)

astro-node (8 failed):

• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41M0BMBSFQ0GK4KE9BBXYYMVKZ | 🔍 observability
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0BMK4ZW0GGNAMW74QVQPH5R | 🔍 observability
• hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep | wrun_41M0BNCS2V0GKAV9DYEDF8NHE1 | 🔍 observability
• hookWithSleepFinalStepWorkflow - step only on final payload | wrun_41M0BND7HH0GRNV40RVDKEB431 | 🔍 observability
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0BNE4270GM3QKDJ53E6P77D | 🔍 observability

express-quickjs (2 failed):

• utf8StreamWorkflow | wrun_41M0BMKHRW0GN1RFC7NAYMJ9ZK | 🔍 observability
• hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep | wrun_41M0BNCS2V0GKAV9DYEDF8NHE1 | 🔍 observability

nitro-node (9 failed):

• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41M0BMBSFQ0GK4KE9BBXYYMVKZ | 🔍 observability
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• hookSupersedeOwnerWorkflow - duplicate cancels the owner and claims the released token | wrun_41M0BN0DDT0GY9PPS36EMZ4N1J | 🔍 observability
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running | wrun_41M0BN0Z6C0GSRMMPYKYMXCMB4 | 🔍 observability
• hookTokenReuseLoopWorkflow - same run recreates a hook with the same token after dispose() | wrun_41M0BN1JHF0GP77H6P35GC4B9D | 🔍 observability
• crossContextSerdeWorkflow - classes defined in step code are deserializable in workflow context | wrun_41M0BNAJ3Y0GQ7QDPYZETKD676 | 🔍 observability
• hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep | wrun_41M0BNCS2V0GKAV9DYEDF8NHE1 | 🔍 observability

sveltekit-node (7 failed):

• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41M0BMBSFQ0GK4KE9BBXYYMVKZ | 🔍 observability
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• fetchWorkflow | wrun_41M0BMPEHZ0GTK8W4WFJWXFPQA | 🔍 observability
• fibonacciWorkflow - recursive workflow composition via start() | wrun_41M0BN5TC00GXRXZQFCY271GGA | 🔍 observability
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0BNE4270GM3QKDJ53E6P77D | 🔍 observability

vercel-ws-transport (3 failed)

express (3 failed):

• hookWorkflow | wrun_41M0BM9VEW0GJT5SG5WW3W17HD
• parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41M0BMBSFQ0GK4KE9BBXYYMVKZ
• outputStreamWorkflow positive startIndex (skips first chunk)

⚠️ 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.

34 flaky tests

• abortFetchInFlightWorkflow: aborting cancels an in-flight fetch (sveltekit)
• abortFromStepWorkflow: step abort cancels an in-flight sibling step (nitro)
• abortParallelWorkflow: abort cancels all parallel steps (astro)
• abortParallelWorkflow: abort cancels all parallel steps (nitro)
• abortThrowIfAbortedMidFlightWorkflow: throwIfAborted in a polling loop bails when abort fires (express)
• abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries (nitro)
• abortVoidSleepTimeoutWorkflow: documented void sleep().then(abort) pattern works (sveltekit)
• agent-level prepareStep is called for each LLM step (sveltekit)
• Calculator.calculate - static workflow method using static step methods from another class (sveltekit)
• completes but callbacks are not called (GAP) (sveltekit)
• completes but needsApproval is not checked (GAP) (sveltekit)
• fetchWorkflow (express)
• fibonacciWorkflow - recursive workflow composition via start() (astro)
• getterStepWorkflow - getter functions with "use step" directive (sveltekit)
• hook created by a sfo1 run resolves by token and resumes the run (nextjs-turbopack)
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered (sveltekit)
• hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep (express)
• hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep (sveltekit)
• negative startIndex (reads from end) (express)
• no startIndex (reads all chunks) (nitro)
• outputStreamInsideStepWorkflow - getWritable() called inside step functions (nitro)
• outputStreamInsideStepWorkflow - getWritable() called inside step functions (sveltekit)
• passes through LanguageModelV3ToolResultOutput from tools (sveltekit)
• promiseAllWorkflow (sveltekit)
• promiseRaceStressTestWorkflow (sveltekit)
• regular Error retries until success (nitro)
• retainedInterleavingWorkflow (astro)
• sleepWinsRaceWorkflow (express)
• step throw round-trips FatalError with cause chain to workflow catch (nitro)
• stream-level prepareStep overrides constructor-level (sveltekit)
• thisSerializationWorkflow - step function invoked with .call() and .apply() (nitro)
• utf8StreamWorkflow (express)
• webhookWorkflow (express)
• writableForwardedFromWorkflowWorkflow (sveltekit)

E2E Test Summary

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	513	26	241	780
✅ vercel-multi-region	27	0	0	27
❌ vercel-ws-transport	125	3	28	156
Total	665	29	269	963

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ astro-node	120	8	28
❌ express-quickjs	126	2	28
❌ nitro-node	119	9	28
✅ python-node	8	0	148
❌ sveltekit-node	140	7	9

✅ vercel-multi-region

App	Passed	Failed	Skipped
✅ nextjs-turbopack	27	0	0

❌ vercel-ws-transport

App	Passed	Failed	Skipped
❌ express	125	3	28

---

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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