Serialize WebSocket stream batches by alangenfeld · Pull Request #3780 · vercel/workflow

alangenfeld · 2026-08-25T14:29:03Z

Summary & Motivation

Matches the HTTP stream path's serial delivery, so a WebSocket comparison measures transport behavior rather than pipeline depth. The server's socket handler is serial anyway, so extra in-flight frames only queue behind it.

Test Plan

Existing coverage runs in CI.

vercel · 2026-08-25T14:29:11Z

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Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, v0	Aug 25, 2026 2:43pm
example-nextjs-workflow-webpack	Ready	Preview, v0	Aug 25, 2026 2:43pm
example-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-astro-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-express-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-fastify-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-hono-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-nestjs-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-nitro-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-nuxt-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-python-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-sveltekit-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-tanstack-start-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workbench-vite-workflow	Ready	Preview, v0	Aug 25, 2026 2:43pm
workflow-docs	Ready	Preview, v0	Aug 25, 2026 2:43pm
workflow-swc-playground	Ready	Preview, v0	Aug 25, 2026 2:43pm
workflow-tarballs	Ready	Preview, v0	Aug 25, 2026 2:43pm
workflow-web	Ready	Preview, v0	Aug 25, 2026 2:43pm

changeset-bot · 2026-08-25T14:29:12Z

⚠️ No Changeset found

Latest commit: b2e738c

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github-actions · 2026-08-25T14:29:31Z

🧪 E2E Test Results

❌ Some tests failed

❌ Failed E2E Tests

▲ Vercel Production (8 failed)

python-node (8 failed):

promiseAllWorkflow | wrun_41M0WP1GTY0GPYQ2TF83FZAR1G | 🔍 observability
sleepingWorkflow | wrun_41M0WP273R0GYX2EPAYN3K99S0 | 🔍 observability
parallelSleepWorkflow | wrun_41M0WP28W10GT4MEYYMVSJN9W3 | 🔍 observability
nullByteWorkflow | wrun_41M0WP2CNY0GT572X26RZY2NEA | 🔍 observability
cancelRun - cancelling a running workflow | wrun_41M0WP7ACQ0GWSJMYY07D76TBW | 🔍 observability
cancelRun via CLI - cancelling a running workflow | wrun_41M0WP7DJB0GYWCDMK3H0A3MWA | 🔍 observability
sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0WP7MFG0GJ5FDXC53WZVFJ3 | 🔍 observability
resilient start: addTenWorkflow completes when run_created returns 500 | wrun_41M0WP870J0GWG3Z1WW9R9DYJ0 | 🔍 observability

🌐 Cross-language Conformance (9 failed)

python (9 failed):

deploymentId: 'latest' is a no-op in non-Vercel worlds | wrun_01M0WP8DD95DCHHNFMP4BW1AS2
promiseAllWorkflow | wrun_41M0WP1GTY0GPYQ2TF83FZAR1G
sleepingWorkflow | wrun_41M0WP273R0GYX2EPAYN3K99S0
parallelSleepWorkflow | wrun_41M0WP28W10GT4MEYYMVSJN9W3
nullByteWorkflow | wrun_41M0WP2CNY0GT572X26RZY2NEA
cancelRun - cancelling a running workflow | wrun_41M0WP7ACQ0GWSJMYY07D76TBW
cancelRun via CLI - cancelling a running workflow | wrun_41M0WP7DJB0GYWCDMK3H0A3MWA
sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_41M0WP7MFG0GJ5FDXC53WZVFJ3
resilient start: addTenWorkflow completes when run_created returns 500 | wrun_41M0WP870J0GWG3Z1WW9R9DYJ0

⚠️ 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.

addTenWorkflow (vite)
cancelRun via CLI - cancelling a running workflow (nextjs-turbopack)
hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep (nextjs-webpack)
webhookWorkflow (tanstack-start)

🛠 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.

34 infra events

cold-start-warmup · suite warmup (tanstack-start) · at 14:45:12Z · abandoned wrun_01M0WP33SFKPE8KY4WXPG2101W
cold-start-warmup · suite warmup (python) · at 14:45:56Z · abandoned wrun_41M0WP1FXC0GVTA6ZT5CAD647H · (+7 more)
run-pickup-stall · nullByteWorkflow (python) · at 14:46:13Z · abandoned wrun_41M0WP54QZ0GHRBS0JX703DMND
run-pickup-stall · promiseAllWorkflow (python) · at 14:46:13Z · abandoned wrun_41M0WP54QP0GK4JDSJ7HTH0Z11
run-pickup-stall · sleepingWorkflow (python) · at 14:46:13Z · abandoned wrun_41M0WP54QV0GTGRB25RXQNW392
run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 14:46:13Z · abandoned wrun_41M0WP55480GJD89F3F4NK4QDH
run-pickup-stall · parallelSleepWorkflow (python) · at 14:46:13Z · abandoned wrun_41M0WP54QV0GTGRB25RXQNW393
cold-start-warmup · suite warmup (python) · at 14:46:28Z · abandoned wrun_01M0WP2EZJR20KKTNEV9Q9CK5W · (+7 more)
run-pickup-stall · deploymentId: 'latest' is a no-op in non-Vercel worlds (python) · at 14:46:43Z · abandoned wrun_01M0WP6446AWXN03AKZ2N76NYA
run-pickup-stall · nullByteWorkflow (python) · at 14:46:43Z · abandoned wrun_01M0WP644G9SFDJRGKC9BEAXJG
run-pickup-stall · promiseAllWorkflow (python) · at 14:46:43Z · abandoned wrun_01M0WP6447FS4FKP4S5MH0VG8G
run-pickup-stall · sleepingWorkflow (python) · at 14:46:43Z · abandoned wrun_01M0WP644C66KSDXEZ1DBBF10A
run-pickup-stall · parallelSleepWorkflow (python) · at 14:46:43Z · abandoned wrun_01M0WP644ENVAPDH79HTFKQWT5
run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 14:46:46Z · abandoned wrun_41M0WP65150GR8GJAECVFP6ABS
run-pickup-stall · sleepingWorkflow (python) · at 14:47:13Z · abandoned wrun_41M0WP70890GNDD2CY0DB2PDJ3
run-pickup-stall · promiseAllWorkflow (python) · at 14:47:13Z · abandoned wrun_41M0WP70860GXRJAC9VH95G51P
run-pickup-stall · parallelSleepWorkflow (python) · at 14:47:14Z · abandoned wrun_41M0WP709D0GPAP1AKVHDJEYSS
run-pickup-stall · nullByteWorkflow (python) · at 14:47:14Z · abandoned wrun_41M0WP709G0GW32929X60MMAC4
run-pickup-stall · nullByteWorkflow (python) · at 14:47:43Z · abandoned wrun_01M0WP7YR4SD25BBEP2KF3A5K6
run-pickup-stall · parallelSleepWorkflow (python) · at 14:47:43Z · abandoned wrun_01M0WP7YR5726360KTAEJ8Q539
run-pickup-stall · sleepingWorkflow (python) · at 14:47:43Z · abandoned wrun_01M0WP7YR74VNTGC3XY7M7AN4D
run-pickup-stall · promiseAllWorkflow (python) · at 14:47:43Z · abandoned wrun_01M0WP7YR0R8CR343137S0VZNN
run-pickup-stall · deploymentId: 'latest' is a no-op in non-Vercel worlds (python) · at 14:47:43Z · abandoned wrun_01M0WP7YR2ECPDW2TWH2HTPPZK
run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 14:48:04Z · abandoned wrun_41M0WP74YT0GN2PB16HQ1GR657
run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 14:48:43Z · abandoned wrun_01M0WP9SBNYC2RQR0AA55RHMD2
run-pickup-stall · sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration (python) · at 14:48:43Z · abandoned wrun_01M0WP9SBZVTEZN9VSAEHT9XNY
run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 14:48:43Z · abandoned wrun_01M0WP9SBXCJRMSKNJ0E0TXD4A
run-pickup-stall · cancelRun - cancelling a running workflow (python) · at 14:49:13Z · abandoned wrun_01M0WPAPQPYQKQZ6JS4FTGR7V6
run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 14:49:13Z · abandoned wrun_01M0WPAPQMHMGR609Q8NX40SG5
run-pickup-stall · sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration (python) · at 14:49:43Z · abandoned wrun_01M0WPBKZ3WA15RRXB7E1TA1DC
run-pickup-stall · cancelRun via CLI - cancelling a running workflow (python) · at 14:50:25Z · abandoned wrun_41M0WP9WVC0GSE72NPJK0EM8EY
run-pickup-stall · sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration (python) · at 14:50:25Z · abandoned wrun_41M0WP9R4Q0GGY555A8EHMTSH1
run-pickup-stall · hookWithSleepFinalStepWorkflow - step only on final payload (nextjs-webpack) · at 14:53:31Z · abandoned wrun_01M0WPJJBKAFRPDEC0PMM9YEBN
run-pickup-stall · sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration (nextjs-webpack) · at 14:53:31Z · abandoned wrun_01M0WPJJE2H0JP9GJYDQ2JJX6G

E2E Test Summary

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	3570	8	742	4320
✅ 💻 Local Development	3922	0	558	4480
✅ 📦 Local Production	3922	0	558	4480
✅ 🐘 Local Postgres	3922	0	558	4480
✅ 🪟 Windows	320	0	0	320
❌ 🌐 Cross-language Conformance	0	9	132	141
✅ vercel-http-transport	817	0	143	960
✅ vercel-multi-region	27	0	0	27
✅ vercel-ws-transport	553	0	87	640
Total	17053	17	2778	19848

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro-node	132	0	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

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable-node	134	26
✅ astro-stable-quickjs	134	26
✅ express-stable-node	134	26
✅ express-stable-quickjs	134	26
✅ fastify-stable-node	134	26
✅ fastify-stable-quickjs	134	26
✅ hono-stable-node	134	26
✅ hono-stable-quickjs	134	26
✅ nest-stable-node	134	26
✅ nest-stable-quickjs	134	26
✅ nextjs-turbopack-canary-node	141	19
✅ nextjs-turbopack-canary-quickjs	141	19
✅ nextjs-turbopack-stable-node	160	0
✅ nextjs-turbopack-stable-quickjs	160	0
✅ nextjs-webpack-canary-node	141	19
✅ nextjs-webpack-canary-quickjs	141	19
✅ nextjs-webpack-stable-node	160	0
✅ nextjs-webpack-stable-quickjs	160	0
✅ nitro-stable-node	134	26
✅ nitro-stable-quickjs	134	26
✅ nuxt-stable-node	134	26
✅ nuxt-stable-quickjs	134	26
✅ sveltekit-stable-node	153	7
✅ sveltekit-stable-quickjs	153	7
✅ tanstack-start-node	134	26
✅ tanstack-start-quickjs	134	26
✅ vite-stable-node	134	26
✅ vite-stable-quickjs	134	26

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable-node	134	26
✅ astro-stable-quickjs	134	26
✅ express-stable-node	134	26
✅ express-stable-quickjs	134	26
✅ fastify-stable-node	134	26
✅ fastify-stable-quickjs	134	26
✅ hono-stable-node	134	26
✅ hono-stable-quickjs	134	26
✅ nest-stable-node	134	26
✅ nest-stable-quickjs	134	26
✅ nextjs-turbopack-canary-node	141	19
✅ nextjs-turbopack-canary-quickjs	141	19
✅ nextjs-turbopack-stable-node	160	0
✅ nextjs-turbopack-stable-quickjs	160	0
✅ nextjs-webpack-canary-node	141	19
✅ nextjs-webpack-canary-quickjs	141	19
✅ nextjs-webpack-stable-node	160	0
✅ nextjs-webpack-stable-quickjs	160	0
✅ nitro-stable-node	134	26
✅ nitro-stable-quickjs	134	26
✅ nuxt-stable-node	134	26
✅ nuxt-stable-quickjs	134	26
✅ sveltekit-stable-node	153	7
✅ sveltekit-stable-quickjs	153	7
✅ tanstack-start-node	134	26
✅ tanstack-start-quickjs	134	26
✅ vite-stable-node	134	26
✅ vite-stable-quickjs	134	26

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable-node	134	26
✅ astro-stable-quickjs	134	26
✅ express-stable-node	134	26
✅ express-stable-quickjs	134	26
✅ fastify-stable-node	134	26
✅ fastify-stable-quickjs	134	26
✅ hono-stable-node	134	26
✅ hono-stable-quickjs	134	26
✅ nest-stable-node	134	26
✅ nest-stable-quickjs	134	26
✅ nextjs-turbopack-canary-node	141	19
✅ nextjs-turbopack-canary-quickjs	141	19
✅ nextjs-turbopack-stable-node	160	0
✅ nextjs-turbopack-stable-quickjs	160	0
✅ nextjs-webpack-canary-node	141	19
✅ nextjs-webpack-canary-quickjs	141	19
✅ nextjs-webpack-stable-node	160	0
✅ nextjs-webpack-stable-quickjs	160	0
✅ nitro-stable-node	134	26
✅ nitro-stable-quickjs	134	26
✅ nuxt-stable-node	134	26
✅ nuxt-stable-quickjs	134	26
✅ sveltekit-stable-node	153	7
✅ sveltekit-stable-quickjs	153	7
✅ tanstack-start-node	134	26
✅ tanstack-start-quickjs	134	26
✅ vite-stable-node	134	26
✅ vite-stable-quickjs	134	26

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack-node	160	0	0
✅ nextjs-turbopack-quickjs	160	0	0

❌ 🌐 Cross-language Conformance

App	Passed	Failed	Skipped
❌ python	0	9	132

✅ vercel-http-transport

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

✅ vercel-multi-region

App	Passed	Failed	Skipped
✅ nextjs-turbopack	27	0	0

✅ vercel-ws-transport

App	Passed	Skipped
✅ example	132	28
✅ express	132	28
✅ nextjs-turbopack	157	3
✅ vite	132	28

📋 View full workflow run

github-actions · 2026-08-25T14:32:53Z

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

Full trace: world-sim.txt

Signed-off-by: Alex Langenfeld <alex.langenfeld@vercel.com>

vercel Bot deployed to Preview – workflow-web August 25, 2026 14:29 View deployment

vercel Bot deployed to Preview – workbench-nestjs-workflow August 25, 2026 14:29 View deployment

vercel Bot deployed to Preview – workflow-tarballs August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workbench-tanstack-start-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workbench-express-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workbench-nitro-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workbench-fastify-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workbench-hono-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workbench-nuxt-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workbench-astro-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workbench-vite-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workbench-sveltekit-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – example-workflow August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – example-nextjs-workflow-turbopack August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workflow-docs August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – example-nextjs-workflow-webpack August 25, 2026 14:30 View deployment

vercel Bot deployed to Preview – workflow-swc-playground August 25, 2026 14:32 View deployment

fix(world-vercel): serialize WebSocket stream batches

b2e738c

Signed-off-by: Alex Langenfeld <alex.langenfeld@vercel.com>

alangenfeld force-pushed the alangenfeld/plan-ws-streams-client branch from e6a55d6 to 989e774 Compare August 25, 2026 14:38

alangenfeld force-pushed the alangenfeld/ws-pipeline-depth-isolation branch from 4bd1e97 to b2e738c Compare August 25, 2026 14:38

vercel Bot deployed to Preview – workbench-python-workflow August 25, 2026 14:39 View deployment

vercel Bot deployed to Preview – workflow-web August 25, 2026 14:39 View deployment

vercel Bot deployed to Preview – workflow-tarballs August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-nestjs-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – example-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-tanstack-start-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-nitro-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-hono-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-fastify-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-astro-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-vite-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-sveltekit-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-express-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – workbench-nuxt-workflow August 25, 2026 14:40 View deployment

vercel Bot deployed to Preview – example-nextjs-workflow-webpack August 25, 2026 14:41 View deployment

vercel Bot deployed to Preview – example-nextjs-workflow-turbopack August 25, 2026 14:41 View deployment

vercel Bot deployed to Preview – workflow-docs August 25, 2026 14:41 View deployment

vercel Bot deployed to Preview – workflow-swc-playground August 25, 2026 14:43 View deployment

alangenfeld closed this Aug 26, 2026

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Uh oh!

Serialize WebSocket stream batches - #3780

Serialize WebSocket stream batches#3780
alangenfeld wants to merge 1 commit into
alangenfeld/plan-ws-streams-clientfrom
alangenfeld/ws-pipeline-depth-isolation

alangenfeld commented Aug 25, 2026

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alangenfeld commented Aug 25, 2026

Summary & Motivation

Test Plan

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🧪 E2E Test Results

❌ Failed E2E Tests

▲ Vercel Production (8 failed)

🌐 Cross-language Conformance (9 failed)

⚠️ Flaky E2E Tests (passed on retry)

🛠 Infra Events (absorbed by the harness)

E2E Test Summary

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Sim World

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