[world-vercel] Revert stream control framing (stable)

[VaguelySerious]

This reverts commit 5ef9ac2 from #1790 (not released to npm yet)

[changeset-bot]

⚠️ No Changeset found

Latest commit: ddc3c6e

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	May 3, 2026 2:56am
example-nextjs-workflow-webpack	Ready	Preview, Comment	May 3, 2026 2:56am
example-workflow	Ready	Preview, Comment	May 3, 2026 2:56am
workbench-astro-workflow	Ready	Preview, Comment	May 3, 2026 2:56am
workbench-express-workflow	Ready	Preview, Comment	May 3, 2026 2:56am
workbench-fastify-workflow	Ready	Preview, Comment	May 3, 2026 2:56am
workbench-hono-workflow	Ready	Preview, Comment	May 3, 2026 2:56am
workbench-nitro-workflow	Ready	Preview, Comment	May 3, 2026 2:56am
workbench-nuxt-workflow	Ready	Preview, Comment	May 3, 2026 2:56am
workbench-sveltekit-workflow	Ready	Preview, Comment	May 3, 2026 2:56am
workbench-vite-workflow	Ready	Preview, Comment	May 3, 2026 2:56am
workflow-docs	Ready	Preview, Comment, Open in v0	May 3, 2026 2:56am
workflow-swc-playground	Ready	Preview, Comment	May 3, 2026 2:56am
workflow-web	Ready	Preview, Comment	May 3, 2026 2:56am

[github-actions]

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	901	0	67	968
✅ 💻 Local Development	970	0	86	1056
✅ 📦 Local Production	970	0	86	1056
✅ 🐘 Local Postgres	970	0	86	1056
✅ 🪟 Windows	88	0	0	88
❌ 🌍 Community Worlds	139	83	0	222
✅ 📋 Other	246	0	18	264
Total	4284	83	343	4710

❌ Failed Tests

🌍 Community Worlds (83 failed)

mongodb (11 failed):

• readableStreamWorkflow | wrun_01KQNW4R58B477H68X0NRPWEH3
• hookWorkflow is not resumable via public webhook endpoint | wrun_01KQNW5DT5S79WS0VNR0G89BWV
• webhookWorkflow | wrun_01KQNW5Q0E70P6NFPV4R2HSPAN
• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getStreamChunks getTailIndex returns correct index after stream completes
• outputStreamWorkflow - getTailIndex and getStreamChunks getTailIndex returns -1 before any chunks are written
• outputStreamWorkflow - getTailIndex and getStreamChunks getStreamChunks returns same content as reading the stream
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_01KQNW92BCJM044Y5322MEFY0R
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_01KQNWE2C6J5Y0B20BDZKVHQVS
• resilient start: addTenWorkflow completes when run_created returns 500 | wrun_01KQNWMZ23FJBC5MR5Q7ZN8TBP

redis (7 failed):

• hookWorkflow is not resumable via public webhook endpoint | wrun_01KQNW5DT5S79WS0VNR0G89BWV
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getStreamChunks getTailIndex returns correct index after stream completes
• outputStreamWorkflow - getTailIndex and getStreamChunks getTailIndex returns -1 before any chunks are written
• outputStreamWorkflow - getTailIndex and getStreamChunks getStreamChunks returns same content as reading the stream
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_01KQNWE2C6J5Y0B20BDZKVHQVS
• resilient start: addTenWorkflow completes when run_created returns 500 | wrun_01KQNWMZ23FJBC5MR5Q7ZN8TBP

turso (65 failed):

• addTenWorkflow | wrun_01KQNW44PT0AV22DJ0G0VJ3ETN
• addTenWorkflow | wrun_01KQNW44PT0AV22DJ0G0VJ3ETN
• wellKnownAgentWorkflow (.well-known/agent) | wrun_01KQNW5P8ZJ7DHFMVYNJSXN3AX
• should work with react rendering in step
• promiseAllWorkflow | wrun_01KQNW4DEKMHVYF959T03MHDMT
• promiseRaceWorkflow | wrun_01KQNW4KF1XGCF2NZDZN6FZYRK
• promiseAnyWorkflow | wrun_01KQNW4NVH75T7FB335HPA8DQ0
• importedStepOnlyWorkflow | wrun_01KQNW65ATGAX9SQWMS5K7Z5GT
• readableStreamWorkflow | wrun_01KQNW4R58B477H68X0NRPWEH3
• hookWorkflow | wrun_01KQNW51XZVRTHNED32A51MX3Y
• hookWorkflow is not resumable via public webhook endpoint | wrun_01KQNW5DT5S79WS0VNR0G89BWV
• webhookWorkflow | wrun_01KQNW5Q0E70P6NFPV4R2HSPAN
• sleepingWorkflow | wrun_01KQNW5YE73DMA7WQ0RZFCXDBG
• parallelSleepWorkflow | wrun_01KQNW6AYMEBEZ1PJV9VSP6BQD
• nullByteWorkflow | wrun_01KQNW6FVCPA6M6DXB9H6FEP9R
• workflowAndStepMetadataWorkflow | wrun_01KQNW6JBW10XNM5SX2XB20F9M
• outputStreamWorkflow no startIndex (reads all chunks)
• outputStreamWorkflow positive startIndex (skips first chunk)
• outputStreamWorkflow negative startIndex (reads from end)
• outputStreamWorkflow - getTailIndex and getStreamChunks getTailIndex returns correct index after stream completes
• outputStreamWorkflow - getTailIndex and getStreamChunks getTailIndex returns -1 before any chunks are written
• outputStreamWorkflow - getTailIndex and getStreamChunks getStreamChunks returns same content as reading the stream
• outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_01KQNW92BCJM044Y5322MEFY0R
• fetchWorkflow | wrun_01KQNW9JDTJDHW40X9VK7YJSDV
• promiseRaceStressTestWorkflow | wrun_01KQNW9QYGNR6ABVP978CQBACT
• error handling error propagation workflow errors nested function calls preserve message and stack trace
• error handling error propagation workflow errors cross-file imports preserve message and stack trace
• error handling error propagation step errors basic step error preserves message and stack trace
• error handling error propagation step errors cross-file step error preserves message and function names in stack
• error handling retry behavior regular Error retries until success
• error handling retry behavior FatalError fails immediately without retries
• error handling retry behavior RetryableError respects custom retryAfter delay
• error handling retry behavior maxRetries=0 disables retries
• error handling catchability FatalError can be caught and detected with FatalError.is()
• error handling not registered WorkflowNotRegisteredError fails the run when workflow does not exist
• error handling not registered StepNotRegisteredError fails the step but workflow can catch it
• error handling not registered StepNotRegisteredError fails the run when not caught in workflow
• hookCleanupTestWorkflow - hook token reuse after workflow completion | wrun_01KQNWDCWHVDE7P9Q817THS1E3
• concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_01KQNWE2C6J5Y0B20BDZKVHQVS
• hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running | wrun_01KQNWERA7T1GZEJXQ4AVPM4QH
• stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars) | wrun_01KQNWFDN9GRJAV474XTF6BY38
• stepFunctionWithClosureWorkflow - step function with closure variables passed as argument | wrun_01KQNWFQFR84SRW2GSYGGZYRRP
• closureVariableWorkflow - nested step functions with closure variables | wrun_01KQNWFXV740TT7K0YP2H7G7X6
• spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step | wrun_01KQNWG0854KNQKPQPN01G6RSW
• health check (queue-based) - workflow and step endpoints respond to health check messages
• pathsAliasWorkflow - TypeScript path aliases resolve correctly | wrun_01KQNWGH21H040KRY9G3PMEH4Z
• Calculator.calculate - static workflow method using static step methods from another class | wrun_01KQNWGQ91MSTH0TMNNCDQAAGT
• AllInOneService.processNumber - static workflow method using sibling static step methods | wrun_01KQNWGZ5Y3F3VBSKDT3TVYY8Y
• ChainableService.processWithThis - static step methods using this to reference the class | wrun_01KQNWH6D7SZXAQF8E9R6N9XSN
• thisSerializationWorkflow - step function invoked with .call() and .apply() | wrun_01KQNWHDMJFAZDVJTNB0EWBTK2
• customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE | wrun_01KQNWHMZCDTV7EKT4TT64N7HG
• instanceMethodStepWorkflow - instance methods with "use step" directive | wrun_01KQNWHWBK0VGE0THDR5SXNFMP
• crossContextSerdeWorkflow - classes defined in step code are deserializable in workflow context | wrun_01KQNWJ8M3S33FTAHC6WP9T92D
• stepFunctionAsStartArgWorkflow - step function reference passed as start() argument | wrun_01KQNWJH01M8EE17V3CCMJJ76Q
• cancelRun - cancelling a running workflow | wrun_01KQNWJSNGM2BYJCRN93VYG10T
• cancelRun via CLI - cancelling a running workflow | wrun_01KQNWK3CC65F66QW95V35W5TS
• pages router addTenWorkflow via pages router
• pages router promiseAllWorkflow via pages router
• pages router sleepingWorkflow via pages router
• hookWithSleepWorkflow - hook payloads delivered correctly with concurrent sleep | wrun_01KQNWKG39XC2ZQ2BSRQ4E0VMH
• sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_01KQNWM6J76RFAQ5Y4WQ3H0NS0
• sleepWithSequentialStepsWorkflow - sequential steps work with concurrent sleep (control) | wrun_01KQNWMHJE48AXAJ7KYB3RTXY2
• importMetaUrlWorkflow - import.meta.url is available in step bundles | wrun_01KQNWMTPG2S7VH3K237C2TW87
• metadataFromHelperWorkflow - getWorkflowMetadata/getStepMetadata work from module-level helper (#1577) | wrun_01KQNWMX0DQWEPJ13C6FC1GZSE
• resilient start: addTenWorkflow completes when run_created returns 500 | wrun_01KQNWMZ23FJBC5MR5Q7ZN8TBP

Details by Category

✅ ▲ Vercel Production

App	Passed	Failed	Skipped
✅ astro	81	0	7
✅ example	81	0	7
✅ express	81	0	7
✅ fastify	81	0	7
✅ hono	81	0	7
✅ nextjs-turbopack	86	0	2
✅ nextjs-webpack	86	0	2
✅ nitro	81	0	7
✅ nuxt	81	0	7
✅ sveltekit	81	0	7
✅ vite	81	0	7

✅ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	82	0	6
✅ express-stable	82	0	6
✅ fastify-stable	82	0	6
✅ hono-stable	82	0	6
✅ nextjs-turbopack-canary	69	0	19
✅ nextjs-turbopack-stable	88	0	0
✅ nextjs-webpack-canary	69	0	19
✅ nextjs-webpack-stable	88	0	0
✅ nitro-stable	82	0	6
✅ nuxt-stable	82	0	6
✅ sveltekit-stable	82	0	6
✅ vite-stable	82	0	6

✅ 📦 Local Production

App	Passed	Failed	Skipped
✅ astro-stable	82	0	6
✅ express-stable	82	0	6
✅ fastify-stable	82	0	6
✅ hono-stable	82	0	6
✅ nextjs-turbopack-canary	69	0	19
✅ nextjs-turbopack-stable	88	0	0
✅ nextjs-webpack-canary	69	0	19
✅ nextjs-webpack-stable	88	0	0
✅ nitro-stable	82	0	6
✅ nuxt-stable	82	0	6
✅ sveltekit-stable	82	0	6
✅ vite-stable	82	0	6

✅ 🐘 Local Postgres

App	Passed	Failed	Skipped
✅ astro-stable	82	0	6
✅ express-stable	82	0	6
✅ fastify-stable	82	0	6
✅ hono-stable	82	0	6
✅ nextjs-turbopack-canary	69	0	19
✅ nextjs-turbopack-stable	88	0	0
✅ nextjs-webpack-canary	69	0	19
✅ nextjs-webpack-stable	88	0	0
✅ nitro-stable	82	0	6
✅ nuxt-stable	82	0	6
✅ sveltekit-stable	82	0	6
✅ vite-stable	82	0	6

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	88	0	0

❌ 🌍 Community Worlds

App	Passed	Failed	Skipped
✅ mongodb-dev	5	0	0
❌ mongodb	58	11	0
✅ redis-dev	5	0	0
❌ redis	62	7	0
✅ turso-dev	5	0	0
❌ turso	4	65	0

✅ 📋 Other

App	Passed	Failed	Skipped
✅ e2e-local-dev-nest-stable	82	0	6
✅ e2e-local-postgres-nest-stable	82	0	6
✅ e2e-local-prod-nest-stable	82	0	6

---

📋 View full workflow run

[TooTallNate]

Straight revert of the unreleased #1790 control-frame work to make way for the cleaner frame-counting approach in #1847. The diff matches expectations: control-frame constants and helpers (STREAM_CONTROL_FRAME_SIZE, parseStreamControlFrame), the reconnect loop in readFromStream, and all related tests are removed; nothing else is touched. Since #1790 hadn't shipped to npm there's no compatibility surface to worry about.