[test] workflow-server PR #841

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Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, v0	Aug 22, 2026 5:27pm
example-nextjs-workflow-webpack	Ready	Preview, v0	Aug 22, 2026 5:27pm
example-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-astro-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-express-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-fastify-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-hono-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-nestjs-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-nitro-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-nuxt-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-python-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-sveltekit-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-tanstack-start-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workbench-vite-workflow	Ready	Preview, v0	Aug 22, 2026 5:27pm
workflow-docs	Ready	Preview, v0	Aug 22, 2026 5:27pm
workflow-swc-playground	Ready	Preview, v0	Aug 22, 2026 5:27pm
workflow-tarballs	Ready	Preview, v0	Aug 22, 2026 5:27pm
workflow-web	Ready	Preview, v0	Aug 22, 2026 5:27pm

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

❌ Failed E2E Tests

▲ Vercel Production (188 failed)

astro-node (8 failed):

• parallelSleepWorkflow | wrun_41M0N8646Y0GRNAP54J1AD1P8X | 🔍 observability
• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• error handling retry behavior regular Error retries until success
• AbortController abortVoidSleepTimeoutWorkflow: documented void sleep().then(abort) pattern works

astro-quickjs (7 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0N8MFQZ0GMJ4VVCJKY87JN0 | 🔍 observability
• AbortController abortHookOrderingWorkflow [listener-first-hook-first]: addEventListener → hook.then → resumeHook → abort()
• AbortController abortHookOrderingWorkflow [hook-first-hook-first]: hook.then → addEventListener → resumeHook → abort()

example-node (6 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X | 🔍 observability
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_41M0N8AMGX0GRYVCCFW1668REV | 🔍 observability
• AbortController abortTimeoutWorkflow: timeout cancels long-running step
• AbortController abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries
• AbortController abortFetchInFlightWorkflow: aborting cancels an in-flight fetch

example-quickjs (5 failed):

• 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_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0N8MFQZ0GMJ4VVCJKY87JN0 | 🔍 observability

express-node (9 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• 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_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• error handling retry behavior regular Error retries until success
• AbortController abortParallelWorkflow: abort cancels all parallel steps
• AbortController abortVoidSleepTimeoutWorkflow: documented void sleep().then(abort) pattern works
• setAttributes fire-and-forget: void setAttributes lands without awaiting
• setAttributes Promise.all of disjoint-key writes: every key lands

express-quickjs (6 failed):

• 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_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• error handling retry behavior regular Error retries until success
• AbortController abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries

fastify-node (6 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• error handling retry behavior regular Error retries until success
• AbortController abortParallelWorkflow: abort cancels all parallel steps

fastify-quickjs (8 failed):

• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_41M0N8AMGX0GRYVCCFW1668REV | 🔍 observability
• setAttributes start: reserved-prefix initial attributes are seeded with allowReservedAttributes
• setAttributes setAttributesInsideStepWorkflow: step-body calls append attributed native events
• setAttributes fire-and-forget: void setAttributes lands without awaiting
• setAttributes workflow throws after awaited setAttributes: attribute still persists on the failed run
• setAttributes validation DX: invalid writes throw catchable FatalErrors naming rule and limit

hono-node (9 failed):

• 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_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_41M0N8AMGX0GRYVCCFW1668REV | 🔍 observability
• AbortController abortReasonWorkflow: abort reason preserved across boundaries
• setAttributes start: reserved-prefix initial attributes are seeded with allowReservedAttributes
• setAttributes setAttributesWorkflow: workflow-body calls append native attr_set events and merge correctly
• setAttributes fire-and-forget: void setAttributes lands without awaiting

hono-quickjs (11 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X | 🔍 observability
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD | 🔍 observability
• AbortController abortReasonWorkflow: abort reason preserved across boundaries
• setAttributes start: initial attributes are seeded on run creation
• setAttributes start: reserved-prefix initial attributes are seeded with allowReservedAttributes
• setAttributes setAttributesWorkflow: workflow-body calls append native attr_set events and merge correctly
• setAttributes setAttributesInsideStepWorkflow: step-body calls append attributed native events
• setAttributes fire-and-forget: void setAttributes lands without awaiting
• setAttributes Promise.all of disjoint-key writes: every key lands

nest-node (7 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running | wrun_41M0N8HM390GGSQX5F6FJ63B0G | 🔍 observability
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0N8MFQZ0GMJ4VVCJKY87JN0 | 🔍 observability
• AbortController abortParallelWorkflow: abort cancels all parallel steps
• AbortController abortVoidSleepTimeoutWorkflow: documented void sleep().then(abort) pattern works

nest-quickjs (13 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X | 🔍 observability
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_41M0N8AMGX0GRYVCCFW1668REV | 🔍 observability
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD | 🔍 observability
• hookClaimOnlyMutexWorkflow - hook works as a pure run mutex without payload data | wrun_41M0N8ECAN0GJ91H4E4ZE2NHWJ | 🔍 observability
• hookMinRetentionWorkflow - terminal Hook cannot resume and its token stays unavailable | wrun_41M0N8DB450GMD0EFXPCSS7S2C | 🔍 observability
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running | wrun_41M0N8HM390GGSQX5F6FJ63B0G | 🔍 observability
• AbortController abortHookOrderingWorkflow [listener-first-hook-first]: addEventListener → hook.then → resumeHook → abort()
• setAttributes start: initial attributes are seeded on run creation

nextjs-turbopack-node (5 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• 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_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X | 🔍 observability

nextjs-turbopack-quickjs (13 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• error handling retry behavior regular Error retries until success
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X | 🔍 observability
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_41M0N8AMGX0GRYVCCFW1668REV | 🔍 observability
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD | 🔍 observability
• setAttributes start: initial attributes are seeded on run creation
• setAttributes start: reserved-prefix initial attributes are seeded with allowReservedAttributes
• setAttributes setAttributesWorkflow: workflow-body calls append native attr_set events and merge correctly
• setAttributes setAttributesInsideStepWorkflow: step-body calls append attributed native events
• setAttributes fire-and-forget: void setAttributes lands without awaiting
• setAttributes Promise.all of disjoint-key writes: every key lands
• setAttributes validation DX: invalid writes throw catchable FatalErrors naming rule and limit

nextjs-webpack-node (2 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• AbortController abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries

nextjs-webpack-quickjs (3 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes

nitro-node (8 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• error handling retry behavior regular Error retries until success
• error handling retry behavior RetryableError respects custom retryAfter delay
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X | 🔍 observability
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_41M0N8AMGX0GRYVCCFW1668REV | 🔍 observability
• AbortController abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries

nitro-quickjs (9 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X | 🔍 observability
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD | 🔍 observability
• setAttributes start: initial attributes are seeded on run creation
• setAttributes start: reserved-prefix initial attributes are seeded with allowReservedAttributes
• setAttributes setAttributesWorkflow: workflow-body calls append native attr_set events and merge correctly
• setAttributes setAttributesInsideStepWorkflow: step-body calls append attributed native events
• setAttributes fire-and-forget: void setAttributes lands without awaiting

nuxt-node (2 failed):

• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream

nuxt-quickjs (7 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• error handling retry behavior regular Error retries until success
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD | 🔍 observability
• hookMinRetentionWorkflow - terminal Hook cannot resume and its token stays unavailable | wrun_41M0N8DB450GMD0EFXPCSS7S2C | 🔍 observability

python-node (8 failed):

• promiseAllWorkflow | wrun_41M0N845DS0GKTWNFF83952283 | 🔍 observability
• sleepingWorkflow | wrun_41M0N887T70GWD6TQAZGDP6DXH | 🔍 observability
• parallelSleepWorkflow | wrun_41M0N8646Y0GRNAP54J1AD1P8X | 🔍 observability
• nullByteWorkflow | wrun_41M0N868AE0GJ2T80D9VNQRBRY | 🔍 observability
• cancelRun - cancelling a running workflow | wrun_41M0N8M7JX0GV53Y8F33FK47YD | 🔍 observability
• cancelRun via CLI - cancelling a running workflow | wrun_41M0N8MC3W0GVCRWC1HWFWY3H1 | 🔍 observability
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0N8MFQZ0GMJ4VVCJKY87JN0 | 🔍 observability
• resilient start: addTenWorkflow completes when run_created returns 500 | wrun_41M0N8N2Q10GKBASJBHRN8MFDB | 🔍 observability

sveltekit-node (7 failed):

• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• error handling retry behavior regular Error retries until success
• distributedAbortController - TTL expiration triggers signal | wrun_41M0N8N9VD0GY61Y5HJY1MCFZT | 🔍 observability
• setAttributes start: initial attributes are seeded on run creation
• setAttributes setAttributesWorkflow: workflow-body calls append native attr_set events and merge correctly
• setAttributes fire-and-forget: void setAttributes lands without awaiting

sveltekit-quickjs (4 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• AbortController abortHookOrderingWorkflow [listener-first-abort-first]: addEventListener → hook.then → abort() → resumeHook

tanstack-start-node (6 failed):

• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running | wrun_41M0N8HM390GGSQX5F6FJ63B0G | 🔍 observability
• AbortController abortDeterministicBranchFromStepWorkflow: branches stay consistent when abort comes from a step
• AbortController abortHookOrderingWorkflow [hook-first-hook-first]: hook.then → addEventListener → resumeHook → abort()
• setAttributes start: reserved-prefix initial attributes are seeded with allowReservedAttributes

tanstack-start-quickjs (3 failed):

• 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_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability

vite-node (4 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X | 🔍 observability
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running | wrun_41M0N8HM390GGSQX5F6FJ63B0G | 🔍 observability

vite-quickjs (12 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0N87GVM0GRMC2YSAWVNHN87 | 🔍 observability
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X | 🔍 observability
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD | 🔍 observability
• AbortController abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries
• setAttributes start: initial attributes are seeded on run creation
• setAttributes start: reserved-prefix initial attributes are seeded with allowReservedAttributes
• setAttributes setAttributesInsideStepWorkflow: step-body calls append attributed native events
• setAttributes fire-and-forget: void setAttributes lands without awaiting
• setAttributes Promise.all of disjoint-key writes: every key lands
• setAttributes workflow throws after awaited setAttributes: attribute still persists on the failed run
• setAttributes validation DX: invalid writes throw catchable FatalErrors naming rule and limit

vercel-http-transport (36 failed)

example (3 failed):

• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X

express (8 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• 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_41M0N87GVM0GRMC2YSAWVNHN87
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0N8MFQZ0GMJ4VVCJKY87JN0
• AbortController abortFetchInFlightWorkflow: aborting cancels an in-flight fetch
• distributedAbortController - TTL expiration triggers signal | wrun_41M0N8N9VD0GY61Y5HJY1MCFZT

hono (3 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow negative startIndex (reads from end)
• AbortController abortVoidSleepTimeoutWorkflow: documented void sleep().then(abort) pattern works

nextjs-turbopack (6 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_41M0N87GVM0GRMC2YSAWVNHN87
• error handling retry behavior regular Error retries until success
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD

nitro (9 failed):

• error handling retry behavior regular Error retries until success
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_41M0N8AMGX0GRYVCCFW1668REV
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD
• setAttributes start: initial attributes are seeded on run creation
• setAttributes start: reserved-prefix initial attributes are seeded with allowReservedAttributes
• setAttributes setAttributesWorkflow: workflow-body calls append native attr_set events and merge correctly
• setAttributes setAttributesInsideStepWorkflow: step-body calls append attributed native events
• setAttributes fire-and-forget: void setAttributes lands without awaiting

vite (7 failed):

• sleepingWorkflow | wrun_41M0N887T70GWD6TQAZGDP6DXH
• 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
• error handling retry behavior RetryableError respects custom retryAfter delay
• AbortController abortSurvivesReplayWorkflow: controller state consistent across replay

vercel-ws-transport (20 failed)

example (3 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD

express (6 failed):

• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• utf8StreamWorkflow | wrun_41M0N87XTW0GV7BACGE9M35GRC
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered | wrun_41M0N8EFRK0GZ1RH1G5VHPQMJD
• AbortController abortHookOrderingWorkflow [hook-first-hook-first]: hook.then → addEventListener → resumeHook → abort()

nextjs-turbopack (6 failed):

• sleepWinsRaceWorkflow | wrun_41M0N866BF0GX1K49HK8BG0H12
• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_41M0N8D6ZR0GXQ0X5YMB93GC0X
• AbortController abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries
• setAttributes fire-and-forget: void setAttributes lands without awaiting

vite (5 failed):

• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running | wrun_41M0N8HM390GGSQX5F6FJ63B0G
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0N8MFQZ0GMJ4VVCJKY87JN0
• AbortController abortHookOrderingWorkflow [listener-first-abort-first]: addEventListener → hook.then → abort() → resumeHook

⚠️ 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.

81 flaky tests

• 'hookGetConflictWithPriorStepWorkflow' - hook.getConflict() does not block step execution (nitro)
• abortAnyInStepWorkflow: AbortSignal.any inside a step composes deserialized signals (nextjs-webpack)
• abortDeterministicBranchFromStepWorkflow: branches stay consistent when abort comes from a step (nuxt)
• abortFetchInFlightWorkflow: aborting cancels an in-flight fetch (nest)
• abortHookOrderingWorkflow [hook-first-abort-first]: hook.then → addEventListener → abort() → resumeHook (nuxt)
• abortHookOrderingWorkflow [hook-first-hook-first]: hook.then → addEventListener → resumeHook → abort() (vite)
• abortHookOrderingWorkflow [listener-first-abort-first]: addEventListener → hook.then → abort() → resumeHook (nextjs-webpack)
• abortHookOrderingWorkflow [listener-first-hook-first]: addEventListener → hook.then → resumeHook → abort() (nest)
• abortParallelWorkflow: abort cancels all parallel steps (nextjs-webpack)
• abortParallelWorkflow: abort cancels all parallel steps (nuxt)
• abortReasonWorkflow: abort reason preserved across boundaries (hono)
• abortReasonWorkflow: abort reason preserved across boundaries (tanstack-start)
• abortSurvivesReplayWorkflow: controller state consistent across replay (example)
• abortSurvivesReplayWorkflow: controller state consistent across replay (hono)
• abortSurvivesReplayWorkflow: controller state consistent across replay (vite)
• abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries (astro)
• abortThrowIfAbortedWorkflow: throwIfAborted causes FatalError, no retries (nest)
• abortTimeoutWorkflow: timeout cancels long-running step (hono)
• abortTimeoutWorkflow: timeout cancels long-running step (nitro)
• abortTimeoutWorkflow: timeout cancels long-running step (nuxt)
• abortTimeoutWorkflow: timeout cancels long-running step (tanstack-start)
• abortTimeoutWorkflow: timeout cancels long-running step (vite)
• abortVoidSleepTimeoutWorkflow: documented void sleep().then(abort) pattern works (tanstack-start)
• basic step error preserves message and stack trace (sveltekit)
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously (nextjs-webpack)
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously (nuxt)
• cross-file step error preserves message and function names in stack (sveltekit)
• crossContextSerdeWorkflow - classes defined in step code are deserializable in workflow context (vite)
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE (vite)
• distributedAbortController - TTL expiration triggers signal (fastify)
• FatalError fails immediately without retries (astro)
• FatalError fails immediately without retries (fastify)
• fire-and-forget: void setAttributes lands without awaiting (nest)
• getChunks returns same content as reading the stream (example)
• getChunks returns same content as reading the stream (hono)
• getTailIndex returns correct index after stream completes (example)
• getTailIndex returns correct index after stream completes (hono)
• getTailIndex returns correct index after stream completes (tanstack-start)
• hookCleanupTestWorkflow - hook token reuse after workflow completion (nextjs-webpack)
• hookCleanupTestWorkflow - hook token reuse after workflow completion (sveltekit)
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running (nextjs-webpack)
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running (nitro)
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running (nuxt)
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running (tanstack-start)
• hookGetConflictWorkflow - awaiting hook.getConflict() registers hook without payload (nitro)
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered (nextjs-webpack)
• hookGetConflictWorkflow - hook.getConflict() resolves with the conflicting run when token is already registered (vite)
• instanceMethodStepWorkflow - instance methods with "use step" directive (vite)
• maxRetries=0 disables retries (fastify)
• negative startIndex (reads from end) (example)
• negative startIndex (reads from end) (sveltekit)
• no startIndex (reads all chunks) (tanstack-start)
• outputStreamInsideStepWorkflow - getWritable() called inside step functions (nest)
• parallelSleepWorkflow (fastify)
• positive startIndex (skips first chunk) (hono)
• promiseRaceStressTestWorkflow (astro)
• promiseRaceStressTestWorkflow (fastify)
• regular Error retries until success (example)
• regular Error retries until success (nextjs-webpack)
• regular Error retries until success (tanstack-start)
• regular Error retries until success (vite)
• retainedInterleavingWorkflow (hono)
• retainedInterleavingWorkflow (nest)
• retainedInterleavingWorkflow (nitro)
• retainedInterleavingWorkflow (tanstack-start)
• RetryableError respects custom retryAfter delay (astro)
• RetryableError respects custom retryAfter delay (fastify)
• RetryableError respects custom retryAfter delay (sveltekit)
• RetryableError respects custom retryAfter delay (tanstack-start)
• setAttributesWorkflow: workflow-body calls append native attr_set events and merge correctly (nest)
• sleepingWorkflow (fastify)
• sleepingWorkflow (hono)
• sleepingWorkflow (nest)
• sleepingWorkflow (sveltekit)
• sleepingWorkflow (vite)
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration (astro)
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration (nuxt)
• sleepWinsRaceWorkflow (astro)
• sleepWinsRaceWorkflow (hono)
• sleepWinsRaceWorkflow (nuxt)
• utf8StreamWorkflow (nest)

🛠 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 17:27:58Z · abandoned wrun_41M0N841460GRKFMVBCAXAH3JA · (+7 more)
• run-pickup-stall · promiseAllWorkflow (python) · at 17:28:15Z · abandoned wrun_41M0N87P330GPFFVGA5CFART26
• run-pickup-stall · nullByteWorkflow (python) · at 17:28:15Z · abandoned wrun_41M0N87P3D0GYQQ9YV2WSVS8HY
• run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 17:28:15Z · abandoned wrun_41M0N87PFR0GNYKNXJ3RFR5TMM
• run-pickup-stall · sleepingWorkflow (python) · at 17:28:15Z · abandoned wrun_41M0N87P390GNFCRR4VCT3ARA0
• run-pickup-stall · parallelSleepWorkflow (python) · at 17:28:15Z · abandoned wrun_41M0N87P3A0GTANRBSZP9HSWNB
• run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 17:28:48Z · abandoned wrun_41M0N88P5F0GX23V2BVWFXTJN6
• run-pickup-stall · sleepingWorkflow (python) · at 17:29:16Z · abandoned wrun_41M0N89HKT0GQRN215A55G05QD
• run-pickup-stall · promiseAllWorkflow (python) · at 17:29:16Z · abandoned wrun_41M0N89HJY0GMNQPTMQZKHGEGE
• run-pickup-stall · nullByteWorkflow (python) · at 17:29:16Z · abandoned wrun_41M0N89HMV0GXRQQBVHT6C9N0N
• run-pickup-stall · parallelSleepWorkflow (python) · at 17:29:16Z · abandoned wrun_41M0N89HRK0GSSBZDY5YTHWV6F
• run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 17:30:06Z · abandoned wrun_41M0N89P4H0GRNKK0M39HPQKAJ
• run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 17:31:48Z · abandoned wrun_41M0N8CE110GZYA68QZRABMB59
• run-pickup-stall · sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration (python) · at 17:32:28Z · abandoned wrun_41M0N8C9FH0GGRYGYEC7YD8PQY

E2E Test Summary

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	3390	188	742	4320
❌ vercel-http-transport	781	36	143	960
✅ vercel-multi-region	27	0	0	27
❌ vercel-ws-transport	533	20	87	640
Total	4731	244	972	5947

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ astro-node	124	8	28
❌ astro-quickjs	125	7	28
❌ example-node	126	6	28
❌ example-quickjs	127	5	28
❌ express-node	123	9	28
❌ express-quickjs	126	6	28
❌ fastify-node	126	6	28
❌ fastify-quickjs	124	8	28
❌ hono-node	123	9	28
❌ hono-quickjs	121	11	28
❌ nest-node	125	7	28
❌ nest-quickjs	119	13	28
❌ nextjs-turbopack-node	152	5	3
❌ nextjs-turbopack-quickjs	144	13	3
❌ nextjs-webpack-node	155	2	3
❌ nextjs-webpack-quickjs	154	3	3
❌ nitro-node	124	8	28
❌ nitro-quickjs	123	9	28
❌ nuxt-node	130	2	28
❌ nuxt-quickjs	125	7	28
❌ python-node	0	8	152
❌ sveltekit-node	144	7	9
❌ sveltekit-quickjs	147	4	9
❌ tanstack-start-node	126	6	28
❌ tanstack-start-quickjs	129	3	28
❌ vite-node	128	4	28
❌ vite-quickjs	120	12	28

❌ vercel-http-transport

App	Passed	Failed	Skipped
❌ example	129	3	28
❌ express	124	8	28
❌ hono	129	3	28
❌ nextjs-turbopack	151	6	3
❌ nitro	123	9	28
❌ vite	125	7	28

✅ vercel-multi-region

App	Passed	Failed	Skipped
✅ nextjs-turbopack	27	0	0

❌ vercel-ws-transport

App	Passed	Failed	Skipped
❌ example	129	3	28
❌ express	126	6	28
❌ nextjs-turbopack	151	6	3
❌ vite	127	5	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