Implement step sourcemaps#310

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Implement step sourcemaps #310

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31204e6
Normalize Workbenches
pranaygp Nov 10, 2025
554fdff
Add claude demo command
pranaygp Nov 12, 2025
b2c6e3b
fix: normalize workbench tests (#292)
adriandlam Nov 12, 2025
8fd157d
Implement step sourcemaps
pranaygp Nov 12, 2025
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5 changes: 5 additions & 0 deletions .changeset/eager-lands-rhyme.md
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---
"@workflow/nitro": patch
---

Add Vite middleware to handle 404s in workflow routes from Nitro and silence undefined unhandled rejections
5 changes: 5 additions & 0 deletions .changeset/five-planets-push.md
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---
"@workflow/sveltekit": patch
---

Fix SvelteKit plugin reading deleted files on HMR
6 changes: 6 additions & 0 deletions .changeset/warm-flies-enjoy.md
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---
"@workflow/builders": patch
"@workflow/core": patch
---

Implement sourcemaps and trace propogation for steps
9 changes: 9 additions & 0 deletions .claude/commands/demo.md
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---
description: Run the 7_full demo workflow
allowed-tools: Bash(curl:*), Bash(npx workflow:*), Bash(pnpm dev)
---


Start the $ARUGMENTS workbench (default to the nextjs turboback workbench available in the workbenches directory). Run it in dev mode, and also start the workflow web UI (run `npx workflow web` inside the appropriate workbench directory).

Then trigger the 7_full.ts workflow example. you can see how to trigger a specific example by looking at the trigger API route for the workbench - it is probably just a POST request using bash (maybe curl) to this endpoint: <http://localhost:3000/api/trigger\?workflowFile\=workflows/7_full.ts\&workflowFn\=handleUserSignup>>
2 changes: 1 addition & 1 deletion .claude/settings.json
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Expand Up@@ -8,7 +8,7 @@
"Bash(pnpm build:*)",
"Bash(pnpm typecheck:*)"
],
"deny": ["Bash(curl:*)", "Read(./.env)", "Read(./.env.*)"],
"deny": ["Read(./.env)", "Read(./.env.*)"],
"additionalDirectories": ["../workflow-server"]
}
}
6 changes: 6 additions & 0 deletions .cursor/worktrees.json
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{
"setup-worktree": [
"pnpm install",
"cp -r $ROOT_WORKTREE_PATH/.vercel .vercel"
]
}
2 changes: 2 additions & 0 deletions .github/workflows/tests.yml
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Expand Up@@ -71,6 +71,8 @@ jobs:
project-id: "prj_oTgiz3SGX2fpZuM6E0P38Ts8de6d"
- name: "sveltekit"
project-id: "prj_MqnBLm71ceXGSnm3Fs8i8gBnI23G"
- name: "hono"
project-id: "prj_p0GIEsfl53L7IwVbosPvi9rPSOYW"
env:
TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
TURBO_TEAM: ${{ vars.TURBO_TEAM }}
Expand Down
185 changes: 185 additions & 0 deletions e2e-test-output.log
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RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGFKKY8R566JGSTQR4KAHK
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
"runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
"status": "failed",
"deploymentId": "dpl_embedded",
"workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
"input": [],
"error": {
"message": "Error: Error from workflow helper",
"stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
},
"startedAt": "2025-11-12T07:46:31.842Z",
"completedAt": "2025-11-12T07:46:32.071Z",
"createdAt": "2025-11-12T07:46:31.678Z",
"updatedAt": "2025-11-12T07:46:32.071Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
Result: {
"runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
"status": "failed",
"deploymentId": "dpl_embedded",
"workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
"input": [],
"error": {
"message": "Error: Error from workflow helper",
"stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
},
"startedAt": "2025-11-12T07:46:31.842Z",
"completedAt": "2025-11-12T07:46:32.071Z",
"createdAt": "2025-11-12T07:46:31.678Z",
"updatedAt": "2025-11-12T07:46:32.071Z"
}


✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 2122ms
✓ e2e > crossFileErrorWorkflow - stack traces work across imported modules 2121ms

Test Files 1 passed (1)
Tests 1 passed | 20 skipped (21)
Start at 02:46:31
Duration 2.59s (transform 85ms, setup 0ms, collect 188ms, tests 2.12s, environment 0ms, prepare 34ms)


RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Full stack trace from deepStepErrorWorkflow:
FatalError: Error from step helper
at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)
at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)
at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)
at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)
at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)
at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)
at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)
at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)
at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)
at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
"runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
"status": "failed",
"deploymentId": "dpl_embedded",
"workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
"input": [],
"error": {
"message": "FatalError: Error from step helper",
"stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
},
"startedAt": "2025-11-12T07:46:50.076Z",
"completedAt": "2025-11-12T07:46:50.924Z",
"createdAt": "2025-11-12T07:46:49.913Z",
"updatedAt": "2025-11-12T07:46:50.924Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: {
"runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
"status": "failed",
"deploymentId": "dpl_embedded",
"workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
"input": [],
"error": {
"message": "FatalError: Error from step helper",
"stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
},
"startedAt": "2025-11-12T07:46:50.076Z",
"completedAt": "2025-11-12T07:46:50.924Z",
"createdAt": "2025-11-12T07:46:49.913Z",
"updatedAt": "2025-11-12T07:46:50.924Z"
}


stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json steps --runId wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
[Debug] Fetching steps for run wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[
{
"runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
"stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
"stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
"status": "failed",
"input": [],
"error": {
"message": "Error from step helper",
"stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
},
"attempt": 1,
"startedAt": "2025-11-12T07:46:50.587Z",
"completedAt": "2025-11-12T07:46:50.588Z",
"createdAt": "2025-11-12T07:46:50.276Z",
"updatedAt": "2025-11-12T07:46:50.588Z"
}
]
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: [
{
"runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
"stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
"stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
"status": "failed",
"input": [],
"error": {
"message": "Error from step helper",
"stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
},
"attempt": 1,
"startedAt": "2025-11-12T07:46:50.587Z",
"completedAt": "2025-11-12T07:46:50.588Z",
"createdAt": "2025-11-12T07:46:50.276Z",
"updatedAt": "2025-11-12T07:46:50.588Z"
}
]


✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 3028ms
✓ e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files 3027ms

Test Files 1 passed (1)
Tests 1 passed | 20 skipped (21)
Start at 02:46:49
Duration 3.48s (transform 83ms, setup 0ms, collect 189ms, tests 3.03s, environment 0ms, prepare 30ms)

Loading
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
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}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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Implement step sourcemaps#310

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pranaygp
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Implement step sourcemaps
#310
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31204e6

Normalize Workbenches


pranaygp Nov 10, 2025
554fdff

Add claude demo command


pranaygp Nov 12, 2025
b2c6e3b

fix: normalize workbench tests (#292)


adriandlam Nov 12, 2025
8fd157d

Implement step sourcemaps


pranaygp Nov 12, 2025

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5 changes: 5 additions & 0 deletions
.changeset/eager-lands-rhyme.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/nitro": patch
---

Add Vite middleware to handle 404s in workflow routes from Nitro and silence undefined unhandled rejections

5 changes: 5 additions & 0 deletions
.changeset/five-planets-push.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/sveltekit": patch
---

Fix SvelteKit plugin reading deleted files on HMR

6 changes: 6 additions & 0 deletions
.changeset/warm-flies-enjoy.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
---
"@workflow/builders": patch
"@workflow/core": patch
---

Implement sourcemaps and trace propogation for steps

9 changes: 9 additions & 0 deletions
.claude/commands/demo.md

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
---
description: Run the 7_full demo workflow
allowed-tools: Bash(curl:*), Bash(npx workflow:*), Bash(pnpm dev)
---


Start the $ARUGMENTS workbench (default to the nextjs turboback workbench available in the workbenches directory). Run it in dev mode, and also start the workflow web UI (run `npx workflow web` inside the appropriate workbench directory).

Then trigger the 7_full.ts workflow example. you can see how to trigger a specific example by looking at the trigger API route for the workbench - it is probably just a POST request using bash (maybe curl) to this endpoint: <http://localhost:3000/api/trigger\?workflowFile\=workflows/7_full.ts\&workflowFn\=handleUserSignup>>

2 changes: 1 addition & 1 deletion
.claude/settings.json

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Original file line numberDiff line numberDiff line change
Expand Up@@ -8,7 +8,7 @@
 "Bash(pnpm build:*)",
 "Bash(pnpm typecheck:*)"
 ],
 "deny": ["Bash(curl:*)", "Read(./.env)", "Read(./.env.*)"],
 "deny": ["Read(./.env)", "Read(./.env.*)"],
 "additionalDirectories": ["../workflow-server"]
 }
}

6 changes: 6 additions & 0 deletions
.cursor/worktrees.json

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
{
 "setup-worktree": [
 "pnpm install",
 "cp -r $ROOT_WORKTREE_PATH/.vercel .vercel"
 ]
}

2 changes: 2 additions & 0 deletions
.github/workflows/tests.yml

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Original file line numberDiff line numberDiff line change
Expand Up@@ -71,6 +71,8 @@ jobs:
 project-id: "prj_oTgiz3SGX2fpZuM6E0P38Ts8de6d"
 - name: "sveltekit"
 project-id: "prj_MqnBLm71ceXGSnm3Fs8i8gBnI23G"
 - name: "hono"
 project-id: "prj_p0GIEsfl53L7IwVbosPvi9rPSOYW"
 env:
 TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
 TURBO_TEAM: ${{ vars.TURBO_TEAM }}
Expand Down

185 changes: 185 additions & 0 deletions
e2e-test-output.log

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 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGFKKY8R566JGSTQR4KAHK 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
Result: {
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 2122ms
 ✓ e2e > crossFileErrorWorkflow - stack traces work across imported modules 2121ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:31
 Duration 2.59s (transform 85ms, setup 0ms, collect 188ms, tests 2.12s, environment 0ms, prepare 34ms)


 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Full stack trace from deepStepErrorWorkflow:
FatalError: Error from step helper
 at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)
 at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)
 at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)
 at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}


stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json steps --runId wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
[Debug] Fetching steps for run wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: [
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 3028ms
 ✓ e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files 3027ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:49
 Duration 3.48s (transform 83ms, setup 0ms, collect 189ms, tests 3.03s, environment 0ms, prepare 30ms)

Loading
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if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
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try {
var __m = "*";
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Implement step sourcemaps#310

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pranaygp
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Implement step sourcemaps
#310
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31204e6

Normalize Workbenches


pranaygp Nov 10, 2025
554fdff

Add claude demo command


pranaygp Nov 12, 2025
b2c6e3b

fix: normalize workbench tests (#292)


adriandlam Nov 12, 2025
8fd157d

Implement step sourcemaps


pranaygp Nov 12, 2025

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5 changes: 5 additions & 0 deletions
.changeset/eager-lands-rhyme.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/nitro": patch
---

Add Vite middleware to handle 404s in workflow routes from Nitro and silence undefined unhandled rejections

5 changes: 5 additions & 0 deletions
.changeset/five-planets-push.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/sveltekit": patch
---

Fix SvelteKit plugin reading deleted files on HMR

6 changes: 6 additions & 0 deletions
.changeset/warm-flies-enjoy.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
---
"@workflow/builders": patch
"@workflow/core": patch
---

Implement sourcemaps and trace propogation for steps

9 changes: 9 additions & 0 deletions
.claude/commands/demo.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
---
description: Run the 7_full demo workflow
allowed-tools: Bash(curl:*), Bash(npx workflow:*), Bash(pnpm dev)
---


Start the $ARUGMENTS workbench (default to the nextjs turboback workbench available in the workbenches directory). Run it in dev mode, and also start the workflow web UI (run `npx workflow web` inside the appropriate workbench directory).

Then trigger the 7_full.ts workflow example. you can see how to trigger a specific example by looking at the trigger API route for the workbench - it is probably just a POST request using bash (maybe curl) to this endpoint: <http://localhost:3000/api/trigger\?workflowFile\=workflows/7_full.ts\&workflowFn\=handleUserSignup>>

2 changes: 1 addition & 1 deletion
.claude/settings.json

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Original file line numberDiff line numberDiff line change
Expand Up@@ -8,7 +8,7 @@
 "Bash(pnpm build:*)",
 "Bash(pnpm typecheck:*)"
 ],
 "deny": ["Bash(curl:*)", "Read(./.env)", "Read(./.env.*)"],
 "deny": ["Read(./.env)", "Read(./.env.*)"],
 "additionalDirectories": ["../workflow-server"]
 }
}

6 changes: 6 additions & 0 deletions
.cursor/worktrees.json

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
{
 "setup-worktree": [
 "pnpm install",
 "cp -r $ROOT_WORKTREE_PATH/.vercel .vercel"
 ]
}

2 changes: 2 additions & 0 deletions
.github/workflows/tests.yml

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -71,6 +71,8 @@ jobs:
 project-id: "prj_oTgiz3SGX2fpZuM6E0P38Ts8de6d"
 - name: "sveltekit"
 project-id: "prj_MqnBLm71ceXGSnm3Fs8i8gBnI23G"
 - name: "hono"
 project-id: "prj_p0GIEsfl53L7IwVbosPvi9rPSOYW"
 env:
 TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
 TURBO_TEAM: ${{ vars.TURBO_TEAM }}
Expand Down

185 changes: 185 additions & 0 deletions
e2e-test-output.log

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,185 @@

 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGFKKY8R566JGSTQR4KAHK 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
Result: {
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 2122ms
 ✓ e2e > crossFileErrorWorkflow - stack traces work across imported modules 2121ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:31
 Duration 2.59s (transform 85ms, setup 0ms, collect 188ms, tests 2.12s, environment 0ms, prepare 34ms)


 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Full stack trace from deepStepErrorWorkflow:
FatalError: Error from step helper
 at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)
 at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)
 at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)
 at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}


stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json steps --runId wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
[Debug] Fetching steps for run wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: [
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 3028ms
 ✓ e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files 3027ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:49
 Duration 3.48s (transform 83ms, setup 0ms, collect 189ms, tests 3.03s, environment 0ms, prepare 30ms)

Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
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} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Implement step sourcemaps#310

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 Closed

pranaygp
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Implement step sourcemaps
#310
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31204e6

Normalize Workbenches


pranaygp Nov 10, 2025
554fdff

Add claude demo command


pranaygp Nov 12, 2025
b2c6e3b

fix: normalize workbench tests (#292)


adriandlam Nov 12, 2025
8fd157d

Implement step sourcemaps


pranaygp Nov 12, 2025

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5 changes: 5 additions & 0 deletions
.changeset/eager-lands-rhyme.md

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/nitro": patch
---

Add Vite middleware to handle 404s in workflow routes from Nitro and silence undefined unhandled rejections

5 changes: 5 additions & 0 deletions
.changeset/five-planets-push.md

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/sveltekit": patch
---

Fix SvelteKit plugin reading deleted files on HMR

6 changes: 6 additions & 0 deletions
.changeset/warm-flies-enjoy.md

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
---
"@workflow/builders": patch
"@workflow/core": patch
---

Implement sourcemaps and trace propogation for steps

9 changes: 9 additions & 0 deletions
.claude/commands/demo.md

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
---
description: Run the 7_full demo workflow
allowed-tools: Bash(curl:*), Bash(npx workflow:*), Bash(pnpm dev)
---


Start the $ARUGMENTS workbench (default to the nextjs turboback workbench available in the workbenches directory). Run it in dev mode, and also start the workflow web UI (run `npx workflow web` inside the appropriate workbench directory).

Then trigger the 7_full.ts workflow example. you can see how to trigger a specific example by looking at the trigger API route for the workbench - it is probably just a POST request using bash (maybe curl) to this endpoint: <http://localhost:3000/api/trigger\?workflowFile\=workflows/7_full.ts\&workflowFn\=handleUserSignup>>

2 changes: 1 addition & 1 deletion
.claude/settings.json

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Original file line numberDiff line numberDiff line change
Expand Up@@ -8,7 +8,7 @@
 "Bash(pnpm build:*)",
 "Bash(pnpm typecheck:*)"
 ],
 "deny": ["Bash(curl:*)", "Read(./.env)", "Read(./.env.*)"],
 "deny": ["Read(./.env)", "Read(./.env.*)"],
 "additionalDirectories": ["../workflow-server"]
 }
}

6 changes: 6 additions & 0 deletions
.cursor/worktrees.json

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
{
 "setup-worktree": [
 "pnpm install",
 "cp -r $ROOT_WORKTREE_PATH/.vercel .vercel"
 ]
}

2 changes: 2 additions & 0 deletions
.github/workflows/tests.yml

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Original file line numberDiff line numberDiff line change
Expand Up@@ -71,6 +71,8 @@ jobs:
 project-id: "prj_oTgiz3SGX2fpZuM6E0P38Ts8de6d"
 - name: "sveltekit"
 project-id: "prj_MqnBLm71ceXGSnm3Fs8i8gBnI23G"
 - name: "hono"
 project-id: "prj_p0GIEsfl53L7IwVbosPvi9rPSOYW"
 env:
 TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
 TURBO_TEAM: ${{ vars.TURBO_TEAM }}
Expand Down

185 changes: 185 additions & 0 deletions
e2e-test-output.log

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,185 @@

 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGFKKY8R566JGSTQR4KAHK 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
Result: {
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 2122ms
 ✓ e2e > crossFileErrorWorkflow - stack traces work across imported modules 2121ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:31
 Duration 2.59s (transform 85ms, setup 0ms, collect 188ms, tests 2.12s, environment 0ms, prepare 34ms)


 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Full stack trace from deepStepErrorWorkflow:
FatalError: Error from step helper
 at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)
 at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)
 at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)
 at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}


stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json steps --runId wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
[Debug] Fetching steps for run wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: [
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 3028ms
 ✓ e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files 3027ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:49
 Duration 3.48s (transform 83ms, setup 0ms, collect 189ms, tests 3.03s, environment 0ms, prepare 30ms)

Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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Implement step sourcemaps#310

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 Closed

pranaygp
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Implement step sourcemaps
#310
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31204e6

Normalize Workbenches


pranaygp Nov 10, 2025
554fdff

Add claude demo command


pranaygp Nov 12, 2025
b2c6e3b

fix: normalize workbench tests (#292)


adriandlam Nov 12, 2025
8fd157d

Implement step sourcemaps


pranaygp Nov 12, 2025

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5 changes: 5 additions & 0 deletions
.changeset/eager-lands-rhyme.md

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/nitro": patch
---

Add Vite middleware to handle 404s in workflow routes from Nitro and silence undefined unhandled rejections

5 changes: 5 additions & 0 deletions
.changeset/five-planets-push.md

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/sveltekit": patch
---

Fix SvelteKit plugin reading deleted files on HMR

6 changes: 6 additions & 0 deletions
.changeset/warm-flies-enjoy.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
---
"@workflow/builders": patch
"@workflow/core": patch
---

Implement sourcemaps and trace propogation for steps

9 changes: 9 additions & 0 deletions
.claude/commands/demo.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
---
description: Run the 7_full demo workflow
allowed-tools: Bash(curl:*), Bash(npx workflow:*), Bash(pnpm dev)
---


Start the $ARUGMENTS workbench (default to the nextjs turboback workbench available in the workbenches directory). Run it in dev mode, and also start the workflow web UI (run `npx workflow web` inside the appropriate workbench directory).

Then trigger the 7_full.ts workflow example. you can see how to trigger a specific example by looking at the trigger API route for the workbench - it is probably just a POST request using bash (maybe curl) to this endpoint: <http://localhost:3000/api/trigger\?workflowFile\=workflows/7_full.ts\&workflowFn\=handleUserSignup>>

2 changes: 1 addition & 1 deletion
.claude/settings.json

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Original file line numberDiff line numberDiff line change
Expand Up@@ -8,7 +8,7 @@
 "Bash(pnpm build:*)",
 "Bash(pnpm typecheck:*)"
 ],
 "deny": ["Bash(curl:*)", "Read(./.env)", "Read(./.env.*)"],
 "deny": ["Read(./.env)", "Read(./.env.*)"],
 "additionalDirectories": ["../workflow-server"]
 }
}

6 changes: 6 additions & 0 deletions
.cursor/worktrees.json

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
{
 "setup-worktree": [
 "pnpm install",
 "cp -r $ROOT_WORKTREE_PATH/.vercel .vercel"
 ]
}

2 changes: 2 additions & 0 deletions
.github/workflows/tests.yml

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Original file line numberDiff line numberDiff line change
Expand Up@@ -71,6 +71,8 @@ jobs:
 project-id: "prj_oTgiz3SGX2fpZuM6E0P38Ts8de6d"
 - name: "sveltekit"
 project-id: "prj_MqnBLm71ceXGSnm3Fs8i8gBnI23G"
 - name: "hono"
 project-id: "prj_p0GIEsfl53L7IwVbosPvi9rPSOYW"
 env:
 TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
 TURBO_TEAM: ${{ vars.TURBO_TEAM }}
Expand Down

185 changes: 185 additions & 0 deletions
e2e-test-output.log

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,185 @@

 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGFKKY8R566JGSTQR4KAHK 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
Result: {
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 2122ms
 ✓ e2e > crossFileErrorWorkflow - stack traces work across imported modules 2121ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:31
 Duration 2.59s (transform 85ms, setup 0ms, collect 188ms, tests 2.12s, environment 0ms, prepare 34ms)


 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Full stack trace from deepStepErrorWorkflow:
FatalError: Error from step helper
 at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)
 at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)
 at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)
 at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}


stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json steps --runId wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
[Debug] Fetching steps for run wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: [
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 3028ms
 ✓ e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files 3027ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:49
 Duration 3.48s (transform 83ms, setup 0ms, collect 189ms, tests 3.03s, environment 0ms, prepare 30ms)

Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Implement step sourcemaps#310

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pranaygp
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Implement step sourcemaps
#310
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31204e6

Normalize Workbenches


pranaygp Nov 10, 2025
554fdff

Add claude demo command


pranaygp Nov 12, 2025
b2c6e3b

fix: normalize workbench tests (#292)


adriandlam Nov 12, 2025
8fd157d

Implement step sourcemaps


pranaygp Nov 12, 2025

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5 changes: 5 additions & 0 deletions
.changeset/eager-lands-rhyme.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/nitro": patch
---

Add Vite middleware to handle 404s in workflow routes from Nitro and silence undefined unhandled rejections

5 changes: 5 additions & 0 deletions
.changeset/five-planets-push.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/sveltekit": patch
---

Fix SvelteKit plugin reading deleted files on HMR

6 changes: 6 additions & 0 deletions
.changeset/warm-flies-enjoy.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
---
"@workflow/builders": patch
"@workflow/core": patch
---

Implement sourcemaps and trace propogation for steps

9 changes: 9 additions & 0 deletions
.claude/commands/demo.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
---
description: Run the 7_full demo workflow
allowed-tools: Bash(curl:*), Bash(npx workflow:*), Bash(pnpm dev)
---


Start the $ARUGMENTS workbench (default to the nextjs turboback workbench available in the workbenches directory). Run it in dev mode, and also start the workflow web UI (run `npx workflow web` inside the appropriate workbench directory).

Then trigger the 7_full.ts workflow example. you can see how to trigger a specific example by looking at the trigger API route for the workbench - it is probably just a POST request using bash (maybe curl) to this endpoint: <http://localhost:3000/api/trigger\?workflowFile\=workflows/7_full.ts\&workflowFn\=handleUserSignup>>

2 changes: 1 addition & 1 deletion
.claude/settings.json

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Original file line numberDiff line numberDiff line change
Expand Up@@ -8,7 +8,7 @@
 "Bash(pnpm build:*)",
 "Bash(pnpm typecheck:*)"
 ],
 "deny": ["Bash(curl:*)", "Read(./.env)", "Read(./.env.*)"],
 "deny": ["Read(./.env)", "Read(./.env.*)"],
 "additionalDirectories": ["../workflow-server"]
 }
}

6 changes: 6 additions & 0 deletions
.cursor/worktrees.json

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
{
 "setup-worktree": [
 "pnpm install",
 "cp -r $ROOT_WORKTREE_PATH/.vercel .vercel"
 ]
}

2 changes: 2 additions & 0 deletions
.github/workflows/tests.yml

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Original file line numberDiff line numberDiff line change
Expand Up@@ -71,6 +71,8 @@ jobs:
 project-id: "prj_oTgiz3SGX2fpZuM6E0P38Ts8de6d"
 - name: "sveltekit"
 project-id: "prj_MqnBLm71ceXGSnm3Fs8i8gBnI23G"
 - name: "hono"
 project-id: "prj_p0GIEsfl53L7IwVbosPvi9rPSOYW"
 env:
 TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
 TURBO_TEAM: ${{ vars.TURBO_TEAM }}
Expand Down

185 changes: 185 additions & 0 deletions
e2e-test-output.log

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,185 @@

 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGFKKY8R566JGSTQR4KAHK 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
Result: {
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 2122ms
 ✓ e2e > crossFileErrorWorkflow - stack traces work across imported modules 2121ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:31
 Duration 2.59s (transform 85ms, setup 0ms, collect 188ms, tests 2.12s, environment 0ms, prepare 34ms)


 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Full stack trace from deepStepErrorWorkflow:
FatalError: Error from step helper
 at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)
 at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)
 at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)
 at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}


stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json steps --runId wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
[Debug] Fetching steps for run wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: [
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 3028ms
 ✓ e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files 3027ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:49
 Duration 3.48s (transform 83ms, setup 0ms, collect 189ms, tests 3.03s, environment 0ms, prepare 30ms)

Loading
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injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Implement step sourcemaps#310

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pranaygp
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Implement step sourcemaps
#310
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31204e6

Normalize Workbenches


pranaygp Nov 10, 2025
554fdff

Add claude demo command


pranaygp Nov 12, 2025
b2c6e3b

fix: normalize workbench tests (#292)


adriandlam Nov 12, 2025
8fd157d

Implement step sourcemaps


pranaygp Nov 12, 2025

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5 changes: 5 additions & 0 deletions
.changeset/eager-lands-rhyme.md

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/nitro": patch
---

Add Vite middleware to handle 404s in workflow routes from Nitro and silence undefined unhandled rejections

5 changes: 5 additions & 0 deletions
.changeset/five-planets-push.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/sveltekit": patch
---

Fix SvelteKit plugin reading deleted files on HMR

6 changes: 6 additions & 0 deletions
.changeset/warm-flies-enjoy.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
---
"@workflow/builders": patch
"@workflow/core": patch
---

Implement sourcemaps and trace propogation for steps

9 changes: 9 additions & 0 deletions
.claude/commands/demo.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
---
description: Run the 7_full demo workflow
allowed-tools: Bash(curl:*), Bash(npx workflow:*), Bash(pnpm dev)
---


Start the $ARUGMENTS workbench (default to the nextjs turboback workbench available in the workbenches directory). Run it in dev mode, and also start the workflow web UI (run `npx workflow web` inside the appropriate workbench directory).

Then trigger the 7_full.ts workflow example. you can see how to trigger a specific example by looking at the trigger API route for the workbench - it is probably just a POST request using bash (maybe curl) to this endpoint: <http://localhost:3000/api/trigger\?workflowFile\=workflows/7_full.ts\&workflowFn\=handleUserSignup>>

2 changes: 1 addition & 1 deletion
.claude/settings.json

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Original file line numberDiff line numberDiff line change
Expand Up@@ -8,7 +8,7 @@
 "Bash(pnpm build:*)",
 "Bash(pnpm typecheck:*)"
 ],
 "deny": ["Bash(curl:*)", "Read(./.env)", "Read(./.env.*)"],
 "deny": ["Read(./.env)", "Read(./.env.*)"],
 "additionalDirectories": ["../workflow-server"]
 }
}

6 changes: 6 additions & 0 deletions
.cursor/worktrees.json

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
{
 "setup-worktree": [
 "pnpm install",
 "cp -r $ROOT_WORKTREE_PATH/.vercel .vercel"
 ]
}

2 changes: 2 additions & 0 deletions
.github/workflows/tests.yml

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Original file line numberDiff line numberDiff line change
Expand Up@@ -71,6 +71,8 @@ jobs:
 project-id: "prj_oTgiz3SGX2fpZuM6E0P38Ts8de6d"
 - name: "sveltekit"
 project-id: "prj_MqnBLm71ceXGSnm3Fs8i8gBnI23G"
 - name: "hono"
 project-id: "prj_p0GIEsfl53L7IwVbosPvi9rPSOYW"
 env:
 TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
 TURBO_TEAM: ${{ vars.TURBO_TEAM }}
Expand Down

185 changes: 185 additions & 0 deletions
e2e-test-output.log

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,185 @@

 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGFKKY8R566JGSTQR4KAHK 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
Result: {
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 2122ms
 ✓ e2e > crossFileErrorWorkflow - stack traces work across imported modules 2121ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:31
 Duration 2.59s (transform 85ms, setup 0ms, collect 188ms, tests 2.12s, environment 0ms, prepare 34ms)


 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Full stack trace from deepStepErrorWorkflow:
FatalError: Error from step helper
 at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)
 at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)
 at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)
 at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}


stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json steps --runId wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
[Debug] Fetching steps for run wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: [
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 3028ms
 ✓ e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files 3027ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:49
 Duration 3.48s (transform 83ms, setup 0ms, collect 189ms, tests 3.03s, environment 0ms, prepare 30ms)

Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Implement step sourcemaps#310

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pranaygp
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Implement step sourcemaps
#310
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31204e6

Normalize Workbenches


pranaygp Nov 10, 2025
554fdff

Add claude demo command


pranaygp Nov 12, 2025
b2c6e3b

fix: normalize workbench tests (#292)


adriandlam Nov 12, 2025
8fd157d

Implement step sourcemaps


pranaygp Nov 12, 2025

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5 changes: 5 additions & 0 deletions
.changeset/eager-lands-rhyme.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/nitro": patch
---

Add Vite middleware to handle 404s in workflow routes from Nitro and silence undefined unhandled rejections

5 changes: 5 additions & 0 deletions
.changeset/five-planets-push.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
---
"@workflow/sveltekit": patch
---

Fix SvelteKit plugin reading deleted files on HMR

6 changes: 6 additions & 0 deletions
.changeset/warm-flies-enjoy.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
---
"@workflow/builders": patch
"@workflow/core": patch
---

Implement sourcemaps and trace propogation for steps

9 changes: 9 additions & 0 deletions
.claude/commands/demo.md

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
---
description: Run the 7_full demo workflow
allowed-tools: Bash(curl:*), Bash(npx workflow:*), Bash(pnpm dev)
---


Start the $ARUGMENTS workbench (default to the nextjs turboback workbench available in the workbenches directory). Run it in dev mode, and also start the workflow web UI (run `npx workflow web` inside the appropriate workbench directory).

Then trigger the 7_full.ts workflow example. you can see how to trigger a specific example by looking at the trigger API route for the workbench - it is probably just a POST request using bash (maybe curl) to this endpoint: <http://localhost:3000/api/trigger\?workflowFile\=workflows/7_full.ts\&workflowFn\=handleUserSignup>>

2 changes: 1 addition & 1 deletion
.claude/settings.json

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Original file line numberDiff line numberDiff line change
Expand Up@@ -8,7 +8,7 @@
 "Bash(pnpm build:*)",
 "Bash(pnpm typecheck:*)"
 ],
 "deny": ["Bash(curl:*)", "Read(./.env)", "Read(./.env.*)"],
 "deny": ["Read(./.env)", "Read(./.env.*)"],
 "additionalDirectories": ["../workflow-server"]
 }
}

6 changes: 6 additions & 0 deletions
.cursor/worktrees.json

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
{
 "setup-worktree": [
 "pnpm install",
 "cp -r $ROOT_WORKTREE_PATH/.vercel .vercel"
 ]
}

2 changes: 2 additions & 0 deletions
.github/workflows/tests.yml

View file


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Original file line numberDiff line numberDiff line change
Expand Up@@ -71,6 +71,8 @@ jobs:
 project-id: "prj_oTgiz3SGX2fpZuM6E0P38Ts8de6d"
 - name: "sveltekit"
 project-id: "prj_MqnBLm71ceXGSnm3Fs8i8gBnI23G"
 - name: "hono"
 project-id: "prj_p0GIEsfl53L7IwVbosPvi9rPSOYW"
 env:
 TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
 TURBO_TEAM: ${{ vars.TURBO_TEAM }}
Expand Down

185 changes: 185 additions & 0 deletions
e2e-test-output.log

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,185 @@

 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGFKKY8R566JGSTQR4KAHK 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > crossFileErrorWorkflow - stack traces work across imported modules
Result: {
 "runId": "wrun_01K9VGFKKY8R566JGSTQR4KAHK",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//crossFileErrorWorkflow",
 "input": [],
 "error": {
 "message": "Error: Error from workflow helper",
 "stack": "Error: Error from workflow helper\n at throwWorkflowError (../example/workflows/98_workflow_error_test.ts:4:10)\n at workflowErrorHelper (../example/workflows/98_workflow_error_test.ts:7:4)\n at crossFileErrorWorkflow (../example/workflows/99_e2e.ts:290:4)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/workflow.ts:574:7)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:362:28)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:280:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:31.842Z",
 "completedAt": "2025-11-12T07:46:32.071Z",
 "createdAt": "2025-11-12T07:46:31.678Z",
 "updatedAt": "2025-11-12T07:46:32.071Z"
}


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 2122ms
 ✓ e2e > crossFileErrorWorkflow - stack traces work across imported modules 2121ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:31
 Duration 2.59s (transform 85ms, setup 0ms, collect 188ms, tests 2.12s, environment 0ms, prepare 34ms)


 RUN v3.2.4 /Users/pranaygp/github/vercel/workflow

stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Full stack trace from deepStepErrorWorkflow:
FatalError: Error from step helper
 at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)
 at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)
 at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)
 at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)
 at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)
 at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json runs wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
{
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "status": "failed",
 "deploymentId": "dpl_embedded",
 "workflowName": "workflow//example/workflows/99_e2e.ts//deepStepErrorWorkflow",
 "input": [],
 "error": {
 "message": "FatalError: Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "startedAt": "2025-11-12T07:46:50.076Z",
 "completedAt": "2025-11-12T07:46:50.924Z",
 "createdAt": "2025-11-12T07:46:49.913Z",
 "updatedAt": "2025-11-12T07:46:50.924Z"
}


stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
[Debug]: Executing node ./node_modules/workflow/bin/run.js inspect --json steps --runId wrun_01K9VGG5DSFTMNDSA8XAHH9WH8 
[Debug]: in CWD: /Users/pranaygp/github/vercel/workflow/workbench/nitro

┌────────────────────────────────────────────────────────┐
│ │
│ Workflow CLI v4.0.1-beta.13 │
│ Docs at https://useworkflow.dev/ │
│ This is a beta release - commands might change │
│ │
└────────────────────────────────────────────────────────┘
[Debug] Inferring env vars, backend: embedded
[Warn] PORT environment variable is not set, using default port 3000
[Debug] Found workflow data directory: /Users/pranaygp/github/vercel/workflow/workbench/nitro-v3/.workflow-data
[Debug] Initializing world
[Debug] Fetching steps for run wrun_01K9VGG5DSFTMNDSA8XAHH9WH8
[
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]
stdout | packages/core/e2e/e2e.test.ts > e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files
Result: [
 {
 "runId": "wrun_01K9VGG5DSFTMNDSA8XAHH9WH8",
 "stepId": "step_01K9VGG5JWA530ZVR68PDJMSJE",
 "stepName": "step//example/workflows/98_step_error_test.ts//deepStepWithNestedError",
 "status": "failed",
 "input": [],
 "error": {
 "message": "Error from step helper",
 "stack": "FatalError: Error from step helper\n at throwStepError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:7:11)\n at stepErrorHelper (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:10:5)\n at deepStepWithNestedError (/Users/pranaygp/github/vercel/workflow/workbench/example/workflows/98_step_error_test.ts:13:5)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:698:21)\n at AsyncLocalStorage.run (node:internal/async_local_storage/async_hooks:91:14)\n at <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:680:43)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:94:22)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/telemetry.ts:57:58)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/core/src/runtime.ts:576:14)\n at async <anonymous> (/Users/pranaygp/github/vercel/workflow/packages/world-local/src/queue.ts:148:24)"
 },
 "attempt": 1,
 "startedAt": "2025-11-12T07:46:50.587Z",
 "completedAt": "2025-11-12T07:46:50.588Z",
 "createdAt": "2025-11-12T07:46:50.276Z",
 "updatedAt": "2025-11-12T07:46:50.588Z"
 }
]


 ✓ packages/core/e2e/e2e.test.ts (21 tests | 20 skipped) 3028ms
 ✓ e2e > deepStepErrorWorkflow - stack traces work with step errors across multiple files 3027ms

 Test Files 1 passed (1)
 Tests 1 passed | 20 skipped (21)
 Start at 02:46:49
 Duration 3.48s (transform 83ms, setup 0ms, collect 189ms, tests 3.03s, environment 0ms, prepare 30ms)

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