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Rename 'Workflow Development Kit' / 'DevKit' to 'Workflow SDK'#1595

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Apr 2, 2026
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Rename 'Workflow Development Kit' / 'DevKit' to 'Workflow SDK'#1595
TooTallNate merged 2 commits into
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rename-devkit-to-sdk

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@TooTallNate TooTallNate commented Apr 2, 2026 •
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Summary

Follow-up to cdf90d5 (#1541).

  • Renames all remaining references of "Workflow Development Kit", "Workflows DevKit", and "workflow-devkit" to "Workflow SDK" / "workflow-sdk" across docs, runtime code, tests, and config files
  • Updates error messages in packages/core to use the new naming
  • Updates the workflow package README heading and description
  • Renames the SWC playground package name from workflow-devkit-compiler-playground to workflow-sdk-compiler-playground
  • Updates SvelteKit workbench title references

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vercel Bot commented Apr 2, 2026 •
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Copilot AI review requested due to automatic review settings April 2, 2026 19:05
@TooTallNate TooTallNate requested a review from a team as a code owner April 2, 2026 19:05
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⚠️ No Changeset found

Latest commit: 7606c64

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.

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🧪 E2E Test Results

❌ Some tests failed

Summary

Passed Failed Skipped Total
✅ ▲ Vercel Production 857 0 67 924
✅ 💻 Local Development 830 0 178 1008
✅ 📦 Local Production 830 0 178 1008
✅ 🐘 Local Postgres 830 0 178 1008
✅ 🪟 Windows 76 0 8 84
❌ 🌍 Community Worlds 133 59 24 216
✅ 📋 Other 210 0 42 252
Total 3766 59 675 4500

❌ Failed Tests

🌍 Community Worlds (59 failed)

mongodb (2 failed):

  • hookWorkflow is not resumable via public webhook endpoint | wrun_01KN7TQZ5V4ZRR7JWJ2XX4C182
  • concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_01KN7TZP8HDEJA985FNX1967H3

redis (2 failed):

  • hookWorkflow is not resumable via public webhook endpoint | wrun_01KN7TQZ5V4ZRR7JWJ2XX4C182
  • concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_01KN7TZP8HDEJA985FNX1967H3

turso (55 failed):

  • addTenWorkflow | wrun_01KN7TPWQH1YRZCDPYP4XY3P84
  • addTenWorkflow | wrun_01KN7TPWQH1YRZCDPYP4XY3P84
  • wellKnownAgentWorkflow (.well-known/agent) | wrun_01KN7TRNFN3SGH1R5K3X0DG8TK
  • should work with react rendering in step
  • promiseAllWorkflow | wrun_01KN7TQ2EYHRC83GFMZPCDY24T
  • promiseRaceWorkflow | wrun_01KN7TQ6KBBZM934X5ZF3MW3MB
  • promiseAnyWorkflow | wrun_01KN7TQ8KX6RB4GC58QQP3E4A2
  • importedStepOnlyWorkflow | wrun_01KN7TS15RVCME358ZCN346RZZ
  • hookWorkflow | wrun_01KN7TQNFS3KR8AC5WFP80GT58
  • hookWorkflow is not resumable via public webhook endpoint | wrun_01KN7TQZ5V4ZRR7JWJ2XX4C182
  • webhookWorkflow | wrun_01KN7TR7FS2JY7Z007XW0M7QYF
  • sleepingWorkflow | wrun_01KN7TRE48KWW580VZDY61DEFV
  • parallelSleepWorkflow | wrun_01KN7TRSXR7C19AZ5P7KJJM5EN
  • nullByteWorkflow | wrun_01KN7TRY19YZ5YBHMMH5C92EBS
  • workflowAndStepMetadataWorkflow | wrun_01KN7TRZXKQ6S6GSB677KCQTYD
  • fetchWorkflow | wrun_01KN7TVQH192RN04XHA681T1VS
  • promiseRaceStressTestWorkflow | wrun_01KN7TVTF0YE6NSXP629796T2A
  • 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_01KN7TZ3NRB916GCG2DX8ZWZHT
  • concurrent hook token conflict - two workflows cannot use the same hook token simultaneously | wrun_01KN7TZP8HDEJA985FNX1967H3
  • hookDisposeTestWorkflow - hook token reuse after explicit disposal while workflow still running | wrun_01KN7V098HPDC0HQM5N7JSJ4X6
  • stepFunctionPassingWorkflow - step function references can be passed as arguments (without closure vars) | wrun_01KN7V0V3FJRAQMSAE7CDRTC02
  • stepFunctionWithClosureWorkflow - step function with closure variables passed as argument | wrun_01KN7V12HPRZ5A3XA9EM2FWMKG
  • closureVariableWorkflow - nested step functions with closure variables | wrun_01KN7V17AZSHKH0TH422BZQRJV
  • spawnWorkflowFromStepWorkflow - spawning a child workflow using start() inside a step | wrun_01KN7V197SAPYRMEE693Q9FNED
  • health check (queue-based) - workflow and step endpoints respond to health check messages
  • pathsAliasWorkflow - TypeScript path aliases resolve correctly | wrun_01KN7V1PQEMAYYA877M7Y9XP9X
  • Calculator.calculate - static workflow method using static step methods from another class | wrun_01KN7V1VK1X9RZWRSPS9E6FK4D
  • AllInOneService.processNumber - static workflow method using sibling static step methods | wrun_01KN7V21CGFAF9VY62QNW4TG4M
  • ChainableService.processWithThis - static step methods using this to reference the class | wrun_01KN7V275HFPKX5XWYMKH9C1PQ
  • thisSerializationWorkflow - step function invoked with .call() and .apply() | wrun_01KN7V2D73M04P33T0S3S4KA1E
  • customSerializationWorkflow - custom class serialization with WORKFLOW_SERIALIZE/WORKFLOW_DESERIALIZE | wrun_01KN7V2M37GV28TWNDVPCYB2ZX
  • instanceMethodStepWorkflow - instance methods with "use step" directive | wrun_01KN7V2T4ZXW564A15XNE6GSQP
  • crossContextSerdeWorkflow - classes defined in step code are deserializable in workflow context | wrun_01KN7V349CG29ZA38XFH8KE5A6
  • stepFunctionAsStartArgWorkflow - step function reference passed as start() argument | wrun_01KN7V3CARYEVJFFMCMMWZ729K
  • cancelRun - cancelling a running workflow | wrun_01KN7V3KABT10BEJXHXVJ973WG
  • cancelRun via CLI - cancelling a running workflow | wrun_01KN7V3VVM7N79KVGGKN45M135
  • 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_01KN7V46WZ32EC15GMFYEAFTZA
  • sleepInLoopWorkflow - sleep inside loop with steps actually delays each iteration | wrun_01KN7V4S3C0EXQTV3G4WKYZK4C
  • sleepWithSequentialStepsWorkflow - sequential steps work with concurrent sleep (control) | wrun_01KN7V53VE7GY73RW3XYB75APP
  • importMetaUrlWorkflow - import.meta.url is available in step bundles | wrun_01KN7V59MPZZDRJ2HCFKZ2757H

Details by Category

✅ ▲ Vercel Production
App Passed Failed Skipped
✅ astro 77 0 7
✅ example 77 0 7
✅ express 77 0 7
✅ fastify 77 0 7
✅ hono 77 0 7
✅ nextjs-turbopack 82 0 2
✅ nextjs-webpack 82 0 2
✅ nitro 77 0 7
✅ nuxt 77 0 7
✅ sveltekit 77 0 7
✅ vite 77 0 7
✅ 💻 Local Development
App Passed Failed Skipped
✅ astro-stable 70 0 14
✅ express-stable 70 0 14
✅ fastify-stable 70 0 14
✅ hono-stable 70 0 14
✅ nextjs-turbopack-canary 59 0 25
✅ nextjs-turbopack-stable 76 0 8
✅ nextjs-webpack-canary 59 0 25
✅ nextjs-webpack-stable 76 0 8
✅ nitro-stable 70 0 14
✅ nuxt-stable 70 0 14
✅ sveltekit-stable 70 0 14
✅ vite-stable 70 0 14
✅ 📦 Local Production
App Passed Failed Skipped
✅ astro-stable 70 0 14
✅ express-stable 70 0 14
✅ fastify-stable 70 0 14
✅ hono-stable 70 0 14
✅ nextjs-turbopack-canary 59 0 25
✅ nextjs-turbopack-stable 76 0 8
✅ nextjs-webpack-canary 59 0 25
✅ nextjs-webpack-stable 76 0 8
✅ nitro-stable 70 0 14
✅ nuxt-stable 70 0 14
✅ sveltekit-stable 70 0 14
✅ vite-stable 70 0 14
✅ 🐘 Local Postgres
App Passed Failed Skipped
✅ astro-stable 70 0 14
✅ express-stable 70 0 14
✅ fastify-stable 70 0 14
✅ hono-stable 70 0 14
✅ nextjs-turbopack-canary 59 0 25
✅ nextjs-turbopack-stable 76 0 8
✅ nextjs-webpack-canary 59 0 25
✅ nextjs-webpack-stable 76 0 8
✅ nitro-stable 70 0 14
✅ nuxt-stable 70 0 14
✅ sveltekit-stable 70 0 14
✅ vite-stable 70 0 14
✅ 🪟 Windows
App Passed Failed Skipped
✅ nextjs-turbopack 76 0 8
❌ 🌍 Community Worlds
App Passed Failed Skipped
✅ mongodb-dev 5 0 0
❌ mongodb 57 2 8
✅ redis-dev 5 0 0
❌ redis 57 2 8
✅ turso-dev 5 0 0
❌ turso 4 55 8
✅ 📋 Other
App Passed Failed Skipped
✅ e2e-local-dev-nest-stable 70 0 14
✅ e2e-local-postgres-nest-stable 70 0 14
✅ e2e-local-prod-nest-stable 70 0 14

📋 View full workflow run

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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 🥇 Next.js (Turbopack) 0.041s 1.005s 0.963s 10 1.00x
💻 Local Express 0.042s (-1.4%) 1.009s (~) 0.967s 10 1.03x
💻 Local Nitro 0.043s (-16.5% 🟢) 1.005s (~) 0.962s 10 1.05x
🐘 Postgres Next.js (Turbopack) 0.049s 1.010s 0.961s 10 1.19x
🌐 Redis Next.js (Turbopack) 0.054s 1.005s 0.951s 10 1.31x
🐘 Postgres Nitro 0.060s (+4.9%) 1.011s (~) 0.950s 10 1.46x
🐘 Postgres Express 0.061s (-8.1% 🟢) 1.011s (~) 0.950s 10 1.49x
🌐 MongoDB Next.js (Turbopack) 0.108s 1.007s 0.899s 10 2.62x
workflow with 1 step

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Next.js (Turbopack) 1.107s 2.005s 0.898s 10 1.00x
🐘 Postgres Next.js (Turbopack) 1.117s 2.011s 0.894s 10 1.01x
🌐 Redis Next.js (Turbopack) 1.126s 2.007s 0.881s 10 1.02x
💻 Local Express 1.130s (~) 2.005s (~) 0.875s 10 1.02x
💻 Local Nitro 1.133s (-0.8%) 2.006s (~) 0.873s 10 1.02x
🐘 Postgres Nitro 1.142s (-0.8%) 2.011s (~) 0.869s 10 1.03x
🐘 Postgres Express 1.146s (~) 2.011s (~) 0.865s 10 1.04x
🌐 MongoDB Next.js (Turbopack) 1.311s 2.008s 0.696s 10 1.18x
workflow with 10 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Next.js (Turbopack) 10.650s 11.024s 0.374s 3 1.00x
🐘 Postgres Next.js (Turbopack) 10.753s 11.020s 0.267s 3 1.01x
🌐 Redis Next.js (Turbopack) 10.787s 11.024s 0.237s 3 1.01x
🐘 Postgres Express 10.851s (~) 11.021s (~) 0.170s 3 1.02x
🐘 Postgres Nitro 10.893s (~) 11.023s (~) 0.130s 3 1.02x
💻 Local Express 10.899s (~) 11.022s (~) 0.123s 3 1.02x
💻 Local Nitro 10.916s (-0.9%) 11.024s (-2.9%) 0.108s 3 1.02x
🌐 MongoDB Next.js (Turbopack) 12.267s 13.022s 0.755s 3 1.15x
workflow with 25 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 14.082s 14.822s 0.740s 5 1.00x
💻 Local Next.js (Turbopack) 14.271s 15.030s 0.759s 4 1.01x
🌐 Redis Next.js (Turbopack) 14.414s 15.029s 0.615s 4 1.02x
🐘 Postgres Express 14.525s (-0.7%) 15.024s (~) 0.499s 4 1.03x
🐘 Postgres Nitro 14.574s (~) 15.021s (~) 0.447s 4 1.03x
💻 Local Express 14.883s (~) 15.028s (~) 0.146s 4 1.06x
💻 Local Nitro 14.956s (-1.7%) 15.029s (-6.3% 🟢) 0.074s 4 1.06x
🌐 MongoDB Next.js (Turbopack) 17.783s 18.021s 0.238s 4 1.26x
workflow with 50 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 13.110s 13.878s 0.768s 7 1.00x
🌐 Redis Next.js (Turbopack) 13.616s 14.170s 0.554s 7 1.04x
🐘 Postgres Express 13.895s (-0.9%) 14.163s (-2.0%) 0.268s 7 1.06x
🐘 Postgres Nitro 14.152s (+1.0%) 15.025s (+2.9%) 0.873s 6 1.08x
💻 Local Next.js (Turbopack) 14.864s 15.029s 0.165s 6 1.13x
💻 Local Express 16.621s (~) 17.031s (~) 0.410s 6 1.27x
💻 Local Nitro 16.649s (-3.0%) 17.031s (-5.6% 🟢) 0.381s 6 1.27x
🌐 MongoDB Next.js (Turbopack) 20.350s 21.028s 0.678s 5 1.55x
Promise.all with 10 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 1.184s 2.010s 0.826s 15 1.00x
🐘 Postgres Nitro 1.261s (~) 2.010s (~) 0.749s 15 1.06x
🐘 Postgres Express 1.271s (~) 2.010s (~) 0.740s 15 1.07x
🌐 Redis Next.js (Turbopack) 1.287s 2.007s 0.719s 15 1.09x
💻 Local Next.js (Turbopack) 1.473s 2.006s 0.533s 15 1.24x
💻 Local Express 1.499s (-2.7%) 2.005s (~) 0.506s 15 1.27x
💻 Local Nitro 1.518s (-3.1%) 2.006s (~) 0.488s 15 1.28x
🌐 MongoDB Next.js (Turbopack) 2.282s 3.108s 0.826s 10 1.93x
Promise.all with 25 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 2.316s (-1.1%) 3.011s (~) 0.695s 10 1.00x
🐘 Postgres Nitro 2.336s (~) 3.011s (~) 0.675s 10 1.01x
🐘 Postgres Next.js (Turbopack) 2.351s 3.011s 0.660s 10 1.01x
🌐 Redis Next.js (Turbopack) 2.563s 3.008s 0.445s 10 1.11x
💻 Local Next.js (Turbopack) 2.623s 3.008s 0.386s 10 1.13x
💻 Local Express 2.883s (-7.3% 🟢) 3.208s (-20.0% 🟢) 0.325s 10 1.24x
💻 Local Nitro 2.938s (-5.8% 🟢) 3.342s (-14.0% 🟢) 0.404s 9 1.27x
🌐 MongoDB Next.js (Turbopack) 9.455s 9.764s 0.309s 4 4.08x
Promise.all with 50 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 3.441s (-0.8%) 4.012s (~) 0.572s 8 1.00x
🐘 Postgres Nitro 3.457s (~) 4.012s (~) 0.554s 8 1.00x
🐘 Postgres Next.js (Turbopack) 3.551s 4.013s 0.462s 8 1.03x
🌐 Redis Next.js (Turbopack) 4.107s 4.868s 0.762s 7 1.19x
💻 Local Next.js (Turbopack) 6.697s 7.216s 0.519s 5 1.95x
💻 Local Express 8.040s (-1.3%) 8.520s (-5.5% 🟢) 0.480s 4 2.34x
💻 Local Nitro 8.055s (-3.9%) 8.770s (-2.9%) 0.715s 4 2.34x
🌐 MongoDB Next.js (Turbopack) 20.320s 20.527s 0.207s 2 5.91x
Promise.race with 10 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 1.182s 2.008s 0.826s 15 1.00x
🐘 Postgres Express 1.245s (-1.4%) 2.008s (~) 0.763s 15 1.05x
🐘 Postgres Nitro 1.261s (~) 2.009s (~) 0.748s 15 1.07x
🌐 Redis Next.js (Turbopack) 1.288s 2.006s 0.719s 15 1.09x
💻 Local Next.js (Turbopack) 1.459s 2.006s 0.547s 15 1.23x
💻 Local Nitro 1.526s (-2.6%) 2.006s (~) 0.480s 15 1.29x
💻 Local Express 1.529s (-0.9%) 2.005s (~) 0.476s 15 1.29x
🌐 MongoDB Next.js (Turbopack) 3.170s 3.883s 0.713s 8 2.68x
Promise.race with 25 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 2.316s (~) 3.011s (~) 0.696s 10 1.00x
🐘 Postgres Next.js (Turbopack) 2.337s 3.011s 0.674s 10 1.01x
🐘 Postgres Express 2.341s (~) 3.013s (~) 0.672s 10 1.01x
🌐 Redis Next.js (Turbopack) 2.600s 3.008s 0.408s 10 1.12x
💻 Local Next.js (Turbopack) 2.620s 3.007s 0.387s 10 1.13x
💻 Local Express 2.999s (-3.6%) 3.675s (-5.4% 🟢) 0.676s 9 1.30x
💻 Local Nitro 3.039s (-5.4% 🟢) 3.886s (~) 0.847s 8 1.31x
🌐 MongoDB Next.js (Turbopack) 9.415s 9.762s 0.347s 4 4.07x
Promise.race with 50 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 3.466s (~) 4.013s (~) 0.546s 8 1.00x
🐘 Postgres Express 3.486s (~) 4.012s (~) 0.526s 8 1.01x
🐘 Postgres Next.js (Turbopack) 3.538s 4.010s 0.472s 8 1.02x
🌐 Redis Next.js (Turbopack) 4.173s 4.868s 0.696s 7 1.20x
💻 Local Next.js (Turbopack) 7.144s 7.520s 0.376s 4 2.06x
💻 Local Nitro 8.988s (~) 9.525s (+2.7%) 0.538s 4 2.59x
💻 Local Express 9.139s (+1.5%) 9.776s (+2.6%) 0.637s 4 2.64x
🌐 MongoDB Next.js (Turbopack) 19.939s 20.527s 0.587s 2 5.75x
workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 0.621s 1.007s 0.386s 60 1.00x
💻 Local Next.js (Turbopack) 0.693s 1.021s 0.328s 59 1.12x
🌐 Redis Next.js (Turbopack) 0.697s 1.005s 0.307s 60 1.12x
🐘 Postgres Express 0.825s (-3.1%) 1.024s (+1.6%) 0.199s 59 1.33x
🐘 Postgres Nitro 0.839s (+1.4%) 1.042s (+3.5%) 0.203s 58 1.35x
💻 Local Express 0.981s (-1.7%) 1.116s (-21.6% 🟢) 0.134s 54 1.58x
💻 Local Nitro 0.994s (-3.1%) 1.255s (-34.4% 🟢) 0.261s 48 1.60x
🌐 MongoDB Next.js (Turbopack) 2.134s 3.008s 0.873s 20 3.44x
workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 1.543s 2.009s 0.466s 45 1.00x
🌐 Redis Next.js (Turbopack) 1.689s 2.006s 0.317s 45 1.09x
🐘 Postgres Nitro 1.922s (-2.1%) 2.101s (-2.4%) 0.179s 43 1.25x
🐘 Postgres Express 1.930s (-4.6%) 2.053s (-23.6% 🟢) 0.123s 44 1.25x
💻 Local Next.js (Turbopack) 2.199s 3.007s 0.809s 30 1.43x
💻 Local Express 3.006s (~) 3.547s (-1.7%) 0.541s 26 1.95x
💻 Local Nitro 3.084s (~) 3.884s (-3.1%) 0.800s 24 2.00x
🌐 MongoDB Next.js (Turbopack) 5.209s 6.011s 0.802s 15 3.38x
workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 3.093s 3.978s 0.885s 31 1.00x
🌐 Redis Next.js (Turbopack) 3.400s 4.042s 0.642s 30 1.10x
🐘 Postgres Express 3.953s (-2.6%) 4.216s (-11.8% 🟢) 0.263s 29 1.28x
🐘 Postgres Nitro 4.039s (~) 4.567s (+0.8%) 0.528s 27 1.31x
💻 Local Next.js (Turbopack) 7.349s 7.952s 0.603s 16 2.38x
💻 Local Nitro 9.167s (-2.6%) 9.787s (-2.3%) 0.620s 13 2.96x
💻 Local Express 9.206s (+0.7%) 9.864s (+2.4%) 0.658s 13 2.98x
🌐 MongoDB Next.js (Turbopack) 10.352s 11.017s 0.665s 11 3.35x
workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 0.197s 1.008s 0.811s 60 1.00x
🐘 Postgres Nitro 0.281s (+3.1%) 1.008s (~) 0.726s 60 1.43x
🐘 Postgres Express 0.282s (+1.2%) 1.008s (~) 0.726s 60 1.43x
🌐 Redis Next.js (Turbopack) 0.291s 1.004s 0.714s 60 1.48x
💻 Local Express 0.580s (~) 1.005s (~) 0.424s 60 2.94x
💻 Local Nitro 0.586s (-14.2% 🟢) 1.004s (-3.4%) 0.419s 60 2.97x
💻 Local Next.js (Turbopack) 0.587s 1.004s 0.417s 60 2.98x
🌐 MongoDB Next.js (Turbopack) 3.219s 3.883s 0.664s 16 16.33x
workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 0.424s 1.018s 0.594s 89 1.00x
🐘 Postgres Express 0.479s (-3.8%) 1.008s (~) 0.529s 90 1.13x
🐘 Postgres Nitro 0.493s (+0.8%) 1.008s (~) 0.515s 90 1.16x
🌐 Redis Next.js (Turbopack) 1.182s 2.006s 0.824s 45 2.79x
💻 Local Express 2.462s (-3.5%) 3.009s (~) 0.546s 30 5.81x
💻 Local Nitro 2.513s (-0.7%) 3.009s (~) 0.496s 30 5.93x
💻 Local Next.js (Turbopack) 2.518s 3.008s 0.489s 30 5.94x
🌐 MongoDB Next.js (Turbopack) 9.196s 9.913s 0.717s 10 21.70x
workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 0.635s 1.007s 0.372s 120 1.00x
🐘 Postgres Express 0.773s (-2.4%) 1.008s (~) 0.235s 120 1.22x
🐘 Postgres Nitro 0.789s (+2.1%) 1.017s (+0.9%) 0.228s 118 1.24x
🌐 Redis Next.js (Turbopack) 2.732s 3.057s 0.325s 40 4.30x
💻 Local Next.js (Turbopack) 9.787s 10.441s 0.653s 12 15.42x
💻 Local Express 11.081s (-1.1%) 11.481s (-3.8%) 0.400s 11 17.46x
💻 Local Nitro 11.188s (-1.4%) 11.849s (-0.8%) 0.661s 11 17.63x
🌐 MongoDB Next.js (Turbopack) 19.785s 20.356s 0.570s 6 31.18x
Stream Benchmarks (includes TTFB metrics)
workflow with stream

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Next.js (Turbopack) 0.137s 1.002s 0.009s 1.015s 0.878s 10 1.00x
🐘 Postgres Next.js (Turbopack) 0.158s 1.000s 0.001s 1.010s 0.852s 10 1.15x
🌐 Redis Next.js (Turbopack) 0.193s 1.001s 0.002s 1.008s 0.815s 10 1.41x
💻 Local Express 0.198s (-2.3%) 1.003s (~) 0.012s (+0.8%) 1.017s (~) 0.819s 10 1.45x
🐘 Postgres Express 0.200s (-2.0%) 0.999s (~) 0.001s (-21.4% 🟢) 1.010s (~) 0.810s 10 1.46x
💻 Local Nitro 0.202s (-7.0% 🟢) 1.003s (~) 0.012s (+5.4% 🔺) 1.017s (~) 0.815s 10 1.48x
🐘 Postgres Nitro 0.204s (-2.2%) 0.994s (~) 0.002s (+6.7% 🔺) 1.010s (~) 0.806s 10 1.49x
🌐 MongoDB Next.js (Turbopack) 0.476s 0.979s 0.002s 1.009s 0.533s 10 3.47x
stream pipeline with 5 transform steps (1MB)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🌐 Redis 🥇 Next.js (Turbopack) 0.495s 1.001s 0.003s 1.012s 0.517s 60 1.00x
🐘 Postgres Next.js (Turbopack) 0.543s 1.007s 0.007s 1.025s 0.482s 59 1.10x
💻 Local Next.js (Turbopack) 0.571s 1.009s 0.009s 1.021s 0.451s 59 1.15x
🐘 Postgres Express 0.599s (-2.7%) 1.006s (~) 0.004s (+2.6%) 1.023s (~) 0.424s 59 1.21x
🐘 Postgres Nitro 0.609s (+0.8%) 1.003s (~) 0.004s (~) 1.023s (~) 0.414s 59 1.23x
💻 Local Express 0.718s (-0.8%) 1.010s (~) 0.009s (+4.0%) 1.022s (~) 0.303s 59 1.45x
💻 Local Nitro 0.727s (-4.4%) 1.010s (~) 0.009s (-5.7% 🟢) 1.023s (~) 0.296s 59 1.47x
🌐 MongoDB Next.js (Turbopack) 1.322s 1.955s 0.003s 2.013s 0.691s 30 2.67x
10 parallel streams (1MB each)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 0.914s 1.130s 0.000s 1.145s 0.231s 54 1.00x
🌐 Redis Next.js (Turbopack) 0.916s 1.034s 0.000s 1.039s 0.122s 58 1.00x
🐘 Postgres Express 0.943s (-3.5%) 1.147s (-4.3%) 0.000s (NaN%) 1.162s (-6.0% 🟢) 0.219s 52 1.03x
🐘 Postgres Nitro 0.950s (-2.6%) 1.189s (+2.1%) 0.000s (+52.9% 🔺) 1.208s (+1.7%) 0.258s 51 1.04x
💻 Local Express 1.225s (-1.8%) 2.020s (~) 0.000s (+12.5% 🔺) 2.022s (~) 0.797s 30 1.34x
💻 Local Next.js (Turbopack) 1.236s 2.018s 0.001s 2.022s 0.786s 30 1.35x
💻 Local Nitro 1.265s (-2.4%) 2.022s (~) 0.000s (-45.5% 🟢) 2.024s (~) 0.760s 30 1.38x
🌐 MongoDB Next.js (Turbopack) 2.361s 2.950s 0.000s 3.008s 0.647s 20 2.58x
fan-out fan-in 10 streams (1MB each)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🌐 Redis 🥇 Next.js (Turbopack) 1.611s 2.035s 0.000s 2.039s 0.428s 30 1.00x
🐘 Postgres Next.js (Turbopack) 1.779s 2.106s 0.000s 2.113s 0.334s 29 1.10x
🐘 Postgres Express 1.796s (+2.6%) 2.177s (+5.3% 🔺) 0.000s (NaN%) 2.189s (+4.1%) 0.393s 28 1.12x
🐘 Postgres Nitro 1.803s (+5.2% 🔺) 2.165s (+3.1%) 0.000s (+3.6%) 2.208s (+4.5%) 0.405s 28 1.12x
💻 Local Express 3.467s (-4.3%) 3.969s (-3.1%) 0.001s (+47.3% 🔺) 3.973s (-3.1%) 0.506s 16 2.15x
💻 Local Nitro 3.519s (-5.8% 🟢) 4.099s (-3.2%) 0.000s (-63.6% 🟢) 4.102s (-3.3%) 0.583s 15 2.18x
💻 Local Next.js (Turbopack) 3.860s 4.297s 0.001s 4.302s 0.442s 15 2.40x
🌐 MongoDB Next.js (Turbopack) 4.376s 4.952s 0.000s 5.011s 0.635s 12 2.72x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World 🥇 Fastest Framework Wins
💻 Local Next.js (Turbopack) 17/21
🐘 Postgres Next.js (Turbopack) 17/21
Fastest World by Framework

Winner determined by most benchmark wins

Framework 🥇 Fastest World Wins
Express 🐘 Postgres 18/21
Next.js (Turbopack) 🐘 Postgres 15/21
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.

@TooTallNate TooTallNate force-pushed the rename-devkit-to-sdk branch from 90ddb13 to fcfc244 Compare April 2, 2026 19:06
Copilot AI reviewed Apr 2, 2026
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Pull request overview

Renames “Workflow Development Kit / DevKit” branding to “Workflow SDK” across the repository, updating docs, runtime error messages, tests, and workbench/playground package metadata to reflect the new naming consistently.

Changes:

  • Updated documentation and README branding from “Workflow Development Kit / DevKit” to “Workflow SDK”.
  • Updated @workflow/core runtime error messaging and corresponding unit tests.
  • Renamed the SWC playground package name and updated Changesets config to match; updated SvelteKit workbench titles.

Reviewed changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated 11 comments.

Show a summary per file
File Description
workbench/swc-playground/package.json Renames the playground package name to workflow-sdk-compiler-playground.
workbench/sveltekit/src/routes/+page.svelte Updates the workbench page heading to “Workflow SDK”.
workbench/sveltekit/src/app.html Updates the HTML document title to “Workflow SDK”.
packages/workflow/README.md Updates the package README branding to “Workflow SDK”.
packages/core/src/runtime/start.ts Updates the invalid-workflow error message to reference “Workflow SDK”.
packages/core/src/runtime/start.test.ts Updates tests to expect the new “Workflow SDK” error message.
docs/content/docs/how-it-works/understanding-directives.mdx Updates narrative references from DevKit/Development Kit to SDK.
docs/content/docs/getting-started/vite.mdx Updates getting-started wording to “Workflow SDK”.
docs/content/docs/getting-started/sveltekit.mdx Updates frontmatter description to “Workflow SDK”.
docs/content/docs/getting-started/nuxt.mdx Updates frontmatter description to “Workflow SDK”.
docs/content/docs/getting-started/nitro.mdx Updates frontmatter description to “Workflow SDK”.
docs/content/docs/getting-started/next.mdx Updates frontmatter description to “Workflow SDK”.
docs/content/docs/getting-started/nestjs.mdx Updates getting-started wording to “Workflow SDK”.
docs/content/docs/getting-started/hono.mdx Updates frontmatter description to “Workflow SDK”.
docs/content/docs/getting-started/fastify.mdx Updates getting-started wording to “Workflow SDK”.
docs/content/docs/getting-started/express.mdx Updates getting-started wording to “Workflow SDK”.
docs/content/docs/getting-started/astro.mdx Updates getting-started wording to “Workflow SDK”.
.changeset/pre.json Updates the pre-release initialVersions entry for the renamed playground package.
.changeset/config.json Updates Changesets ignore list to match the renamed playground package.

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vercel[bot]
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VaguelySerious
VaguelySerious approved these changes Apr 2, 2026
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I think Copilot got this review covered. Approving so you can merge once those comments are addressed

@TooTallNate TooTallNate enabled auto-merge (squash) April 2, 2026 19:36
@TooTallNate TooTallNate merged commit 7e33c62 into main Apr 2, 2026
99 of 102 checks passed
@TooTallNate TooTallNate deleted the rename-devkit-to-sdk branch April 2, 2026 19:39
pranaygp added a commit that referenced this pull request Apr 3, 2026
@pranaygp
Merge remote-tracking branch 'origin/main' into pranaygp/codex/pr-149…
5aabffa 
…1-refresh

* origin/main: (21 commits)
  Fix node-module-error plugin matching identifiers in multi-line comments (#1554)
  fix(swc-plugin): use binding name for class expression method registrations (#1599)
  fix(builders): override `sideEffects: false` for discovered workflow/step/serde entries (#1598)
  [world-vercel] align header names to `x-vercel-workflow-*` convention (#1602)
  [docs] Add vercel world consumer function security documentation (#1543)
  Make `start()` types `unknown` when `deploymentId` is provided (#1367)
  fix(next): stop force-setting WORKFLOW_PUBLIC_MANIFEST=1 during next dev (#1597)
  Version Packages (beta) (#1593)
  [docs] Tidy world API docs and document new stream helpers (#1581)
  Rename 'Workflow Development Kit' / 'DevKit' to 'Workflow SDK' (#1595)
  [world] Use zod/v4 in queue files to match @workflow/world schemas (#1588)
  [ai] Fix fatal stream errors surfacing as [object Object] (#1589)
  [web] Fix server crash on unmatched routes (#1590)
  docs: rename 'Complex Example' to 'Instance Methods as Steps' (#1592)
  Version Packages (beta) (#1563)
  [core] Extend flow route duration to "max" and fail runs where replay takes too long (#1567)
  fix: check target run capabilities before encrypting hook payloads (#1572)
  [core] Combine initial run fetch, event fetch, and run_started event creation (#1569)
  [docs] Split World API docs into sub-pages, update skill.md (#1457)
  [nitro] Preserve workflow step registration side effects (#1386)
  ...

# Conflicts:
#	skills/workflow/SKILL.md
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@VaguelySerious VaguelySerious VaguelySerious approved these changes

@karthikscale3 karthikscale3 karthikscale3 approved these changes

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@TooTallNate @VaguelySerious @karthikscale3