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docs: remove experimental labeling from @workflow/ai API references#1774

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Apr 16, 2026
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docs: remove experimental labeling from @workflow/ai API references#1774
pranaygp merged 1 commit into
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@pranaygp pranaygp commented Apr 16, 2026

Summary

  • remove the experimental warning callouts from the @workflow/ai API reference pages
  • remove the beaker icon from the @workflow/ai API reference overview
  • keep the actual experimental_* API names untouched where they are part of the public surface

Testing

  • not run (docs-only change)

@pranaygp pranaygp requested a review from a team as a code owner April 16, 2026 15:51
Copilot AI review requested due to automatic review settings April 16, 2026 15:51
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🧪 E2E Test Results

❌ Some tests failed

Summary

Passed Failed Skipped Total
❌ ▲ Vercel Production 913 10 67 990
✅ 💻 Local Development 822 0 168 990
✅ 📦 Local Production 898 0 182 1080
✅ 🐘 Local Postgres 898 0 182 1080
✅ 🪟 Windows 82 0 8 90
❌ 🌍 Community Worlds 133 98 0 231
✅ 📋 Other 228 0 42 270
Total 3974 108 649 4731

❌ Failed Tests

▲ Vercel Production (10 failed)

astro (3 failed):

  • parallelSleepWorkflow | wrun_01KPBFZD9K95N7QMFB1PE5T8N3 | 🔍 observability
  • outputStreamWorkflow negative startIndex (reads from end)
  • cancelRun - cancelling a running workflow | wrun_01KPBGFQ3Z95YVV7XP74BA4JDS | 🔍 observability

example (1 failed):

  • outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns correct index after stream completes

fastify (1 failed):

  • DurableAgent e2e experimental_onToolCallFinish (GAP) completes but callbacks are not called (GAP)

hono (1 failed):

  • outputStreamWorkflow negative startIndex (reads from end)

nitro (1 failed):

  • cancelRun via CLI - cancelling a running workflow | wrun_01KPBGG09KRH63DA8KJXBCQJDB | 🔍 observability

sveltekit (3 failed):

  • DurableAgent e2e prepareStep on constructor stream-level prepareStep overrides constructor-level
  • outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_01KPBG2P9P3RXTQFDE0JGTBW49 | 🔍 observability
  • sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_01KPBGH30DDS1Z1ERJA929R2CW | 🔍 observability
🌍 Community Worlds (98 failed)

mongodb (15 failed):

  • readableStreamWorkflow | wrun_01KPBFXXJW7NAJNWX0TD7APXHM
  • hookWorkflow is not resumable via public webhook endpoint | wrun_01KPBFYJY3DPWG7PDSNC26FA3W
  • webhookWorkflow | wrun_01KPBFYVS78Y2NSW871SYJN0J2
  • 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
  • outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns -1 before any chunks are written
  • outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
  • outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_01KPBG2P9P3RXTQFDE0JGTBW49
  • fetchWorkflow | wrun_01KPBG340P4HEBFCD6M8DQBKJT
  • concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_01KPBG79NNHVG5VM5NA98WW8X0
  • health check (queue-based) - workflow and step endpoints respond to health check messages
  • health check (CLI) - workflow health command reports healthy endpoints
  • resilient start: addTenWorkflow completes when run_created returns 500 | wrun_01KPBGHT3TZFKCA3KZQBGTJ169

redis (15 failed):

  • readableStreamWorkflow | wrun_01KPBFXXJW7NAJNWX0TD7APXHM
  • hookWorkflow is not resumable via public webhook endpoint | wrun_01KPBFYJY3DPWG7PDSNC26FA3W
  • webhookWorkflow | wrun_01KPBFYVS78Y2NSW871SYJN0J2
  • 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
  • outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns -1 before any chunks are written
  • outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
  • outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_01KPBG2P9P3RXTQFDE0JGTBW49
  • fetchWorkflow | wrun_01KPBG340P4HEBFCD6M8DQBKJT
  • concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_01KPBG79NNHVG5VM5NA98WW8X0
  • health check (queue-based) - workflow and step endpoints respond to health check messages
  • health check (CLI) - workflow health command reports healthy endpoints
  • resilient start: addTenWorkflow completes when run_created returns 500 | wrun_01KPBGHT3TZFKCA3KZQBGTJ169

turso (68 failed):

  • addTenWorkflow | wrun_01KPBFXD14Z3QBSNDJH9DTK8A5
  • addTenWorkflow | wrun_01KPBFXD14Z3QBSNDJH9DTK8A5
  • wellKnownAgentWorkflow (.well-known/agent) | wrun_01KPBFZP71TMVZMFJHYVY1022E
  • should work with react rendering in step
  • promiseAllWorkflow | wrun_01KPBFXN12J3RPWPTY3T1DWSQS
  • promiseRaceWorkflow | wrun_01KPBFXSB0QW2G6BWN9WVAJSTP
  • promiseAnyWorkflow | wrun_01KPBFXVHYR474Q85B388TCEBX
  • importedStepOnlyWorkflow | wrun_01KPBG02Q1EZZSK2GTF8K6D365
  • readableStreamWorkflow | wrun_01KPBFXXJW7NAJNWX0TD7APXHM
  • hookWorkflow | wrun_01KPBFY7DJ7DY71EB5C5ZXXVKK
  • hookWorkflow is not resumable via public webhook endpoint | wrun_01KPBFYJY3DPWG7PDSNC26FA3W
  • webhookWorkflow | wrun_01KPBFYVS78Y2NSW871SYJN0J2
  • sleepingWorkflow | wrun_01KPBFZ1Y27JQA9TCP0V54V9Y7
  • parallelSleepWorkflow | wrun_01KPBFZD9K95N7QMFB1PE5T8N3
  • nullByteWorkflow | wrun_01KPBFZJ4K1JAAEP5EP7YZTRAV
  • workflowAndStepMetadataWorkflow | wrun_01KPBFZMA1VPEZ80C6NFABQ5CC
  • 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
  • outputStreamWorkflow - getTailIndex and getChunks getTailIndex returns -1 before any chunks are written
  • outputStreamWorkflow - getTailIndex and getChunks getChunks returns same content as reading the stream
  • outputStreamInsideStepWorkflow - getWritable() called inside step functions | wrun_01KPBG2P9P3RXTQFDE0JGTBW49
  • fetchWorkflow | wrun_01KPBG340P4HEBFCD6M8DQBKJT
  • promiseRaceStressTestWorkflow | wrun_01KPBG38DF076QGGEKK75W3NNX
  • 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_01KPBG6NN3MNN0A7AN534PYN8K
  • concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_01KPBG79NNHVG5VM5NA98WW8X0
  • hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running | wrun_01KPBG7YSWMHMD6YVS3AGZBR1N
  • stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars) | wrun_01KPBG8J1V969C4KA91WS8AREB
  • stepFunctionWithClosureWorkflow - step function with closure variables passed as argument | wrun_01KPBG8TYZ3HNWK7Y9KHWYCQ9C
  • closureVariableWorkflow - nested step functions with closure variables | wrun_01KPBG90AQMJDCY09N0PE0B6JT
  • spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step | wrun_01KPBG92C062F7A6N1AGHBBJWV
  • runClassSerializationWorkflow - Run instances serialize across workflow/step boundaries | wrun_01KPBGAA2BHZ49TD00H76BDPRR
  • health check (queue-based) - workflow and step endpoints respond to health check messages
  • health check (CLI) - workflow health command reports healthy endpoints
  • pathsAliasWorkflow - TypeScript path aliases resolve correctly | wrun_01KPBGD64607BGF7V1D3RWX5HY
  • Calculator.calculate - static workflow method using static step methods from another class | wrun_01KPBGDBPA1306DDPQ80ZQXVDK
  • AllInOneService.processNumber - static workflow method using sibling static step methods | wrun_01KPBGDJ6G8ZNM7S7ZZV6JMS5E
  • ChainableService.processWithThis - static step methods using this to reference the class | wrun_01KPBGDRQ5QVHXC0M65RN7D1BE
  • thisSerializationWorkflow - step function invoked with .call() and .apply() | wrun_01KPBGDZ6X302J3WK3GQ79GYAM
  • customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE | wrun_01KPBGEBEGSJ71QPY08R3ZKE6Y
  • instanceMethodStepWorkflow - instance methods with "use step" directive | wrun_01KPBGESZTQ26W3FYGZNYJJWJX
  • crossContextSerdeWorkflow - classes defined in step code are deserializable in workflow context | wrun_01KPBGF5CRWWB591MXDHNQBNHZ
  • stepFunctionAsStartArgWorkflow - step function reference passed as start() argument | wrun_01KPBGFE2Z4N16MHGFEX7KX5SC
  • cancelRun - cancelling a running workflow | wrun_01KPBGFQ3Z95YVV7XP74BA4JDS
  • cancelRun via CLI - cancelling a running workflow | wrun_01KPBGG09KRH63DA8KJXBCQJDB
  • 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_01KPBGGC4YC5KETR8AGN797KMW
  • sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_01KPBGH30DDS1Z1ERJA929R2CW
  • sleepWithSequentialStepsWorkflow - sequential steps work with concurrent sleep (control) | wrun_01KPBGHEE34GDH5GQF7CMASGK6
  • importMetaUrlWorkflow - import.meta.url is available in step bundles | wrun_01KPBGHP16Q2QRBVP4PXRWTGMJ
  • metadataFromHelperWorkflow - getWorkflowMetadata/getStepMetadata work from module-level helper (#1577) | wrun_01KPBGHR22SXC68Y60VXE0HKNA
  • resilient start: addTenWorkflow completes when run_created returns 500 | wrun_01KPBGHT3TZFKCA3KZQBGTJ169
  • getterStepWorkflow - getter functions with "use step" directive | wrun_01KPBGJ8YQ3SZXCGJWCWJX38T1

Details by Category

❌ ▲ Vercel Production
App Passed Failed Skipped
❌ astro 80 3 7
❌ example 82 1 7
✅ express 83 0 7
❌ fastify 82 1 7
❌ hono 82 1 7
✅ nextjs-turbopack 88 0 2
✅ nextjs-webpack 88 0 2
❌ nitro 82 1 7
✅ nuxt 83 0 7
❌ sveltekit 80 3 7
✅ vite 83 0 7
✅ 💻 Local Development
App Passed Failed Skipped
✅ astro-stable 76 0 14
✅ express-stable 76 0 14
✅ fastify-stable 76 0 14
✅ hono-stable 76 0 14
✅ nextjs-turbopack-canary 63 0 27
✅ nextjs-turbopack-stable 82 0 8
✅ nextjs-webpack-canary 63 0 27
✅ nextjs-webpack-stable 82 0 8
✅ nuxt-stable 76 0 14
✅ sveltekit-stable 76 0 14
✅ vite-stable 76 0 14
✅ 📦 Local Production
App Passed Failed Skipped
✅ astro-stable 76 0 14
✅ express-stable 76 0 14
✅ fastify-stable 76 0 14
✅ hono-stable 76 0 14
✅ nextjs-turbopack-canary 63 0 27
✅ nextjs-turbopack-stable 82 0 8
✅ nextjs-webpack-canary 63 0 27
✅ nextjs-webpack-stable 82 0 8
✅ nitro-stable 76 0 14
✅ nuxt-stable 76 0 14
✅ sveltekit-stable 76 0 14
✅ vite-stable 76 0 14
✅ 🐘 Local Postgres
App Passed Failed Skipped
✅ astro-stable 76 0 14
✅ express-stable 76 0 14
✅ fastify-stable 76 0 14
✅ hono-stable 76 0 14
✅ nextjs-turbopack-canary 63 0 27
✅ nextjs-turbopack-stable 82 0 8
✅ nextjs-webpack-canary 63 0 27
✅ nextjs-webpack-stable 82 0 8
✅ nitro-stable 76 0 14
✅ nuxt-stable 76 0 14
✅ sveltekit-stable 76 0 14
✅ vite-stable 76 0 14
✅ 🪟 Windows
App Passed Failed Skipped
✅ nextjs-turbopack 82 0 8
❌ 🌍 Community Worlds
App Passed Failed Skipped
✅ mongodb-dev 6 0 0
❌ mongodb 56 15 0
✅ redis-dev 6 0 0
❌ redis 56 15 0
✅ turso-dev 6 0 0
❌ turso 3 68 0
✅ 📋 Other
App Passed Failed Skipped
✅ e2e-local-dev-nest-stable 76 0 14
✅ e2e-local-postgres-nest-stable 76 0 14
✅ e2e-local-prod-nest-stable 76 0 14

📋 View full workflow run

❌ Some E2E test jobs failed:

  • Vercel Prod: failure
  • Local Dev: failure
  • Local Prod: success
  • Local Postgres: success
  • Windows: success

Check the workflow run for details.

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📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 0.041s (+13.9% 🔺) 1.005s (~) 0.964s 10 1.00x
💻 Local Express 0.044s (+25.7% 🔺) 1.006s (~) 0.962s 10 1.07x
🐘 Postgres Nitro 0.063s (+4.1%) 1.010s (~) 0.947s 10 1.54x
🐘 Postgres Express 0.069s (-5.1% 🟢) 1.018s (~) 0.949s 10 1.67x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 0.242s (-30.5% 🟢) 2.091s (-3.2%) 1.848s 10 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 1 step

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 1.126s (+2.3%) 2.005s (~) 0.879s 10 1.00x
💻 Local Express 1.127s (+2.6%) 2.006s (~) 0.879s 10 1.00x
🐘 Postgres Nitro 1.142s (~) 2.010s (~) 0.868s 10 1.01x
🐘 Postgres Express 1.149s (~) 2.010s (~) 0.861s 10 1.02x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 2.223s (+16.7% 🔺) 4.121s (+14.3% 🔺) 1.898s 10 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 10 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 10.858s (~) 11.023s (~) 0.165s 3 1.00x
🐘 Postgres Express 10.897s (-0.8%) 11.021s (-2.9%) 0.125s 3 1.00x
💻 Local Express 10.928s (+2.6%) 11.023s (~) 0.095s 3 1.01x
💻 Local Nitro 10.939s (+2.7%) 11.022s (~) 0.084s 3 1.01x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 30.076s (+77.1% 🔺) 31.908s (+66.0% 🔺) 1.832s 1 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 25 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 14.550s (~) 15.026s (~) 0.476s 4 1.00x
🐘 Postgres Nitro 14.562s (~) 15.027s (~) 0.465s 4 1.00x
💻 Local Nitro 14.945s (+4.9%) 15.029s (~) 0.084s 4 1.03x
💻 Local Express 15.009s (+5.4% 🔺) 15.533s (+3.4%) 0.524s 4 1.03x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 34.046s (+2.8%) 36.284s (+3.1%) 2.238s 2 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 50 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 13.973s (~) 14.449s (+3.1%) 0.475s 7 1.00x
🐘 Postgres Express 14.126s (-1.5%) 14.739s (-1.9%) 0.613s 7 1.01x
💻 Local Nitro 16.594s (+10.9% 🔺) 17.030s (+10.9% 🔺) 0.436s 6 1.19x
💻 Local Express 16.773s (+12.5% 🔺) 17.031s (+13.3% 🔺) 0.258s 6 1.20x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 63.654s (+21.2% 🔺) 65.501s (+21.0% 🔺) 1.847s 2 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

Promise.all with 10 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 1.268s (-1.9%) 2.009s (~) 0.741s 15 1.00x
🐘 Postgres Nitro 1.274s (+0.6%) 2.010s (~) 0.736s 15 1.00x
💻 Local Nitro 1.526s (+3.4%) 2.006s (~) 0.481s 15 1.20x
💻 Local Express 1.545s (+5.9% 🔺) 2.007s (~) 0.462s 15 1.22x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 26.254s (+911.4% 🔺) 27.961s (+563.4% 🔺) 1.707s 3 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

Promise.all with 25 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 2.344s (~) 3.009s (~) 0.665s 10 1.00x
🐘 Postgres Nitro 2.359s (+0.9%) 3.009s (~) 0.650s 10 1.01x
💻 Local Express 2.960s (+4.2%) 3.454s (+11.1% 🔺) 0.494s 9 1.26x
💻 Local Nitro 2.961s (+15.6% 🔺) 3.452s (+14.8% 🔺) 0.491s 9 1.26x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 6.442s (+156.8% 🔺) 7.837s (+105.6% 🔺) 1.395s 4 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

Promise.all with 50 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 3.477s (+0.7%) 4.014s (~) 0.537s 8 1.00x
🐘 Postgres Express 3.481s (~) 4.011s (~) 0.530s 8 1.00x
💻 Local Nitro 7.730s (+11.3% 🔺) 8.522s (+13.4% 🔺) 0.793s 4 2.22x
💻 Local Express 8.390s (+18.3% 🔺) 9.026s (+12.6% 🔺) 0.636s 4 2.41x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 4.099s (+43.0% 🔺) 6.723s (+52.8% 🔺) 2.624s 5 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

Promise.race with 10 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.264s (~) 2.009s (~) 0.745s 15 1.00x
🐘 Postgres Express 1.265s (+0.7%) 2.008s (~) 0.743s 15 1.00x
💻 Local Express 1.541s (+4.7%) 2.006s (~) 0.465s 15 1.22x
💻 Local Nitro 1.563s (+3.1%) 2.006s (~) 0.443s 15 1.24x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 6.630s (+215.5% 🔺) 8.347s (+130.4% 🔺) 1.717s 7 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

Promise.race with 25 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 2.351s (+0.7%) 3.012s (~) 0.661s 10 1.00x
🐘 Postgres Nitro 2.352s (+0.9%) 3.009s (~) 0.657s 10 1.00x
💻 Local Express 3.120s (+15.7% 🔺) 4.012s (+33.4% 🔺) 0.892s 8 1.33x
💻 Local Nitro 3.159s (+14.2% 🔺) 4.011s (+29.0% 🔺) 0.852s 8 1.34x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 4.480s (+56.7% 🔺) 6.050s (+39.5% 🔺) 1.571s 5 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

Promise.race with 50 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 3.479s (~) 4.012s (~) 0.532s 8 1.00x
🐘 Postgres Nitro 3.502s (~) 4.010s (~) 0.508s 8 1.01x
💻 Local Express 9.068s (+18.6% 🔺) 9.775s (+21.9% 🔺) 0.707s 4 2.61x
💻 Local Nitro 10.679s (+43.4% 🔺) 11.026s (+37.5% 🔺) 0.347s 3 3.07x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 9.240s (+105.3% 🔺) 11.277s (+87.4% 🔺) 2.037s 4 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 0.831s (+1.9%) 1.023s (~) 0.192s 59 1.00x
🐘 Postgres Express 0.834s (-1.5%) 1.006s (-1.7%) 0.172s 60 1.00x
💻 Local Nitro 0.989s (+42.3% 🔺) 1.229s (+22.4% 🔺) 0.240s 49 1.19x
💻 Local Express 1.001s (+40.7% 🔺) 1.424s (+39.4% 🔺) 0.423s 43 1.20x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 15.684s (+62.1% 🔺) 17.601s (+53.5% 🔺) 1.917s 5 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.967s (+1.9%) 2.283s (+8.7% 🔺) 0.316s 40 1.00x
🐘 Postgres Express 2.009s (-3.6%) 2.496s (-15.3% 🟢) 0.487s 37 1.02x
💻 Local Nitro 2.985s (+32.1% 🔺) 3.378s (+12.3% 🔺) 0.394s 27 1.52x
💻 Local Express 3.089s (+36.8% 🔺) 3.884s (+29.2% 🔺) 0.795s 24 1.57x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 123.837s (+308.0% 🔺) 126.082s (+289.2% 🔺) 2.246s 2 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 4.054s (-1.6%) 4.665s (-4.6%) 0.611s 26 1.00x
🐘 Postgres Nitro 4.056s (+4.6%) 4.743s (+15.4% 🔺) 0.686s 26 1.00x
💻 Local Nitro 9.091s (+23.6% 🔺) 9.633s (+20.2% 🔺) 0.542s 13 2.24x
💻 Local Express 9.292s (+26.8% 🔺) 9.942s (+24.1% 🔺) 0.651s 13 2.29x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 118.177s (-9.8% 🟢) 120.738s (-9.4% 🟢) 2.561s 2 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 0.287s (~) 1.007s (~) 0.720s 60 1.00x
🐘 Postgres Express 0.299s (+5.0%) 1.007s (~) 0.708s 60 1.04x
💻 Local Express 0.595s (-0.6%) 1.022s (~) 0.427s 59 2.07x
💻 Local Nitro 0.601s (+6.1% 🔺) 1.022s (+1.7%) 0.420s 59 2.09x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 1.993s (+24.2% 🔺) 4.854s (+47.7% 🔺) 2.861s 14 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 0.499s (+0.9%) 1.007s (~) 0.508s 90 1.00x
🐘 Postgres Nitro 0.521s (+3.3%) 1.007s (~) 0.486s 90 1.05x
💻 Local Nitro 2.528s (+4.0%) 3.009s (~) 0.481s 30 5.07x
💻 Local Express 2.560s (+4.0%) 3.009s (~) 0.450s 30 5.13x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 4.553s (+68.4% 🔺) 6.446s (+52.4% 🔺) 1.893s 14 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 0.801s (-1.3%) 1.008s (-0.9%) 0.207s 120 1.00x
🐘 Postgres Nitro 0.834s (+3.9%) 1.011s (~) 0.177s 119 1.04x
💻 Local Nitro 11.165s (+8.1% 🔺) 11.754s (+7.5% 🔺) 0.589s 11 13.93x
💻 Local Express 11.261s (+6.4% 🔺) 11.848s (+7.5% 🔺) 0.587s 11 14.05x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 51.167s (+639.0% 🔺) 55.219s (+526.3% 🔺) 4.052s 4 1.00x
▲ Vercel Nitro ⚠️ missing - - - -

🔍 Observability: Express

Stream Benchmarks (includes TTFB metrics)
workflow with stream

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Nitro 0.201s (+41.5% 🔺) 1.004s (~) 0.012s (+19.0% 🔺) 1.018s (~) 0.818s 10 1.00x
💻 Local Express 0.202s (+43.0% 🔺) 1.004s (~) 0.012s (+28.7% 🔺) 1.019s (~) 0.817s 10 1.00x
🐘 Postgres Express 0.214s (-0.6%) 0.996s (~) 0.001s (-12.5% 🟢) 1.010s (~) 0.796s 10 1.07x
🐘 Postgres Nitro 0.320s (+49.3% 🔺) 1.100s (+10.3% 🔺) 0.001s (+7.7% 🔺) 1.110s (+9.8% 🔺) 0.790s 10 1.59x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 3.915s (+178.1% 🔺) 5.452s (+109.6% 🔺) 1.989s (+104.7% 🔺) 7.850s (+97.3% 🔺) 3.934s 10 1.00x
▲ Vercel Nitro ⚠️ missing - - - - -

🔍 Observability: Express

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 0.626s (-2.4%) 1.005s (~) 0.004s (-4.1%) 1.023s (~) 0.397s 59 1.00x
🐘 Postgres Nitro 0.649s (+4.9%) 1.003s (~) 0.002s (-45.1% 🟢) 1.020s (~) 0.371s 59 1.04x
💻 Local Nitro 0.757s (+31.1% 🔺) 1.012s (~) 0.012s (+31.1% 🔺) 1.026s (~) 0.269s 59 1.21x
💻 Local Express 0.843s (+26.4% 🔺) 1.011s (~) 0.010s (+5.3% 🔺) 1.116s (~) 0.273s 54 1.35x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 4.913s (+17.8% 🔺) 6.900s (+11.4% 🔺) 0.865s (+100.6% 🔺) 8.208s (+16.6% 🔺) 3.295s 8 1.00x
▲ Vercel Nitro ⚠️ missing - - - - -

🔍 Observability: Express

10 parallel streams (1MB each)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 0.967s (-1.2%) 1.245s (-2.4%) 0.000s (+91.7% 🔺) 1.258s (-3.8%) 0.291s 48 1.00x
🐘 Postgres Express 1.003s (+2.4%) 1.360s (+13.6% 🔺) 0.000s (+13.6% 🔺) 1.373s (+12.9% 🔺) 0.370s 44 1.04x
💻 Local Nitro 1.227s (+3.9%) 2.021s (~) 0.000s (+30.0% 🔺) 2.023s (~) 0.796s 30 1.27x
💻 Local Express 1.253s (+6.3% 🔺) 2.022s (~) 0.000s (~) 2.024s (~) 0.771s 30 1.30x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 10.881s (+223.1% 🔺) 12.358s (+175.2% 🔺) 0.000s (+100.0% 🔺) 12.827s (+163.4% 🔺) 1.945s 7 1.00x
▲ Vercel Nitro ⚠️ missing - - - - -

🔍 Observability: Express

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.720s (-1.1%) 2.103s (-1.7%) 0.000s (-3.4%) 2.113s (-1.8%) 0.393s 29 1.00x
🐘 Postgres Express 1.800s (+1.9%) 2.141s (~) 0.000s (-100.0% 🟢) 2.177s (+1.3%) 0.377s 28 1.05x
💻 Local Express 3.542s (+1.0%) 4.034s (~) 0.000s (+33.3% 🔺) 4.036s (~) 0.494s 15 2.06x
💻 Local Nitro 3.583s (-4.6%) 4.100s (-1.6%) 0.000s (-30.0% 🟢) 4.103s (-1.6%) 0.520s 15 2.08x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 10.960s (+175.8% 🔺) 12.506s (+141.7% 🔺) 0.000s (-63.3% 🟢) 12.943s (+129.4% 🔺) 1.983s 5 1.00x
▲ Vercel Nitro ⚠️ missing - - - - -

🔍 Observability: Express

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World 🥇 Fastest Framework Wins
💻 Local Nitro 14/21
🐘 Postgres Nitro 11/21
▲ Vercel Express 21/21
Fastest World by Framework

Winner determined by most benchmark wins

Framework 🥇 Fastest World Wins
Express 🐘 Postgres 18/21
Nitro 🐘 Postgres 18/21
Column Definitions
  • Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
  • TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
  • Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
  • Wall Time: Total testbench time (trigger workflow + poll for result)
  • Overhead: Testbench overhead (Wall Time - Workflow Time)
  • Samples: Number of benchmark iterations run
  • vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

  • 💻 Local: In-memory filesystem world (local development)
  • 🐘 Postgres: PostgreSQL database world (local development)
  • ▲ Vercel: Vercel production/preview deployment
  • 🌐 Turso: Community world (local development)
  • 🌐 MongoDB: Community world (local development)
  • 🌐 Redis: Community world (local development)
  • 🌐 Jazz: Community world (local development)

📋 View full workflow run

❌ Some benchmark jobs failed:

  • Local: success
  • Postgres: success
  • Vercel: failure

Check the workflow run for details.

@pranaygp pranaygp merged commit f41fb74 into main Apr 16, 2026
70 of 91 checks passed
@pranaygp pranaygp deleted the pranaygp/codex/remove-workflow-ai-experimental-docs branch April 16, 2026 15:51
Copilot AI reviewed Apr 16, 2026
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Pull request overview

This PR updates the @workflow/ai API reference docs to remove “experimental” visual labeling (warning callouts and the beaker/flask icon) while keeping the underlying API surface and naming unchanged.

Changes:

  • Removed the experimental warning callout from @workflow/ai API reference pages touched in this PR.
  • Removed the beaker/flask icon from the @workflow/ai API reference overview frontmatter.
  • Left experimental_* API names untouched where they’re part of the public API.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File Description
docs/content/docs/api-reference/workflow-ai/workflow-chat-transport.mdx Removes the experimental warning callout at the top of the reference page.
docs/content/docs/api-reference/workflow-ai/index.mdx Removes the overview icon and the experimental warning callout.
docs/content/docs/api-reference/workflow-ai/durable-agent.mdx Removes the experimental warning callout at the top of the reference page.

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@pranaygp