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[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads - #2874

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karthikscale3 merged 2 commits into
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fix/o11y-queue-namespace
Jul 10, 2026
Merged

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads#2874
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace

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@karthikscale3karthikscale3 commented Jul 10, 2026

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Why

Replaying an eve agent run from the dashboard hangs ~30s and then fails with a 504. Two compounding issues in @workflow/core:

  • Queue namespace is caller-derived. Eve deployments only consume __eve_wkf_workflow_* topics (they set WORKFLOW_QUEUE_NAMESPACE=eve at build time), but start() / recreateRunFromExisting() / reenqueueRun() / wakeUpRun() build queue names from the calling process's env. The dashboard has no namespace set, so its health-check probe and run enqueue publish to unprefixed topics that have no consumer — the message is never dispatched.
  • healthCheck() can hang past its timeout. The poll loop only checks the deadline between iterations; world.streams.get() itself is unbounded. workflow-server holds unwritten streams open for ~2 minutes, so the 2s cross-deployment capability probe in start() hung until the dashboard function's 30s limit killed the request.

What

  • Add a namespace option to StartOptionsBase, RecreateRunOptions, StopSleepOptions, and new ReenqueueRunOptions; thread it into getWorkflowQueueName() and the cross-deployment capability probe. Env fallback behavior is unchanged when the option is omitted.
  • Fold the previously-inline namespace param into HealthCheckOptions.
  • Race streams.get() against the remaining health-check budget so probes fail at the configured deadline instead of hanging.

A follow-up in front will pass the target deployment's namespace from the observability replay / wake-up / deployment-health routes. Longer term, persisting the namespace on the run record would remove the need for callers to supply it.

Validation

  • New unit tests: namespaced health-check topic selection, namespaced enqueue for start/wakeUpRun/reenqueueRun, cross-deployment probe topic, and a hang-regression test (never-resolving streams.get now returns unhealthy at the deadline; previously it hung indefinitely).
  • packages/core full unit suite: 1439 tests pass.

🤖 Generated with Claude Code

…thCheck stream reads
Deployments that use a queue namespace (e.g. eve's __eve_wkf_workflow_*
topics) could not be targeted by cross-context callers: start(),
recreateRunFromExisting(), reenqueueRun(), and wakeUpRun() always built
queue names from the caller's WORKFLOW_QUEUE_NAMESPACE env, so dashboard
replays published to topics the target deployment has no consumer for.
Additionally, healthCheck()'s poll loop only checked its timeout between
iterations while world.streams.get() itself was unbounded — against
workflow-server, which holds unwritten streams open for ~2 minutes, a
2s capability probe hung until the caller's function timed out (the
observed 30s 504s on dashboard replay).
- Add a `namespace` option to StartOptionsBase, RecreateRunOptions,
StopSleepOptions, and new ReenqueueRunOptions; thread it into
getWorkflowQueueName() and the cross-deployment capability probe.
- Fold the inline `namespace` param into HealthCheckOptions.
- Race streams.get() against the remaining health-check budget.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@changeset-bot

changeset-botBot commented Jul 10, 2026

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🦋 Changeset detected

Latest commit: 28c0a0a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch

Not sure what this means? Click here to learn what changesets are.

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

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🧪 E2E Test Results

All tests passed

Summary

PassedFailedSkippedTotal
✅ ▲ Vercel Production145302301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
Total7351010648415

Details by Category

✅ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
✅ nextjs-turbopack15003
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027

📋 View full workflow run

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📊 Workflow Benchmarks

commit 28c0a0a · Fri, 10 Jul 2026 18:45:04 GMT · run logs

Backend: vercel · app: nextjs-turbopack

MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1283 (-11%)1656 🔴1800 🔴2269 🔴30
TTFShook + stream1486 (-18%)1836 🔴1880 🔴2037 🔴30
STSO1020 steps (1-20)301 (-2.4%)320 🔴545 🔴659 🔴19
STSO1020 steps (101-120)418 (-6.5%)431 🔴568 🔴794 🔴19
STSO1020 steps (1001-1020)869 (-2.8%)942 🔴1042 🔴1079 🔴19
WOstream1283 (-11%)16561800226930
WOhook + stream1486 (-18%)18361880203730
SLstream4391 (-11%)5466 🔴5583 🔴5911 🔴30
SLhook + stream4947 (+1.8%)5487 🔴5610 🔴5789 🔴30

Avg deltas compare against the most recent benchmark run on main at the time of this run.

Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)

Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges

🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120

TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@karthikscale3
karthikscale3 marked this pull request as ready for review July 10, 2026 18:29
@karthikscale3
karthikscale3 requested a review from ijjk as a code ownerJuly 10, 2026 18:29
@karthikscale3
karthikscale3 merged commit 48fcc4e into mainJul 10, 2026
103 checks passed
@karthikscale3
karthikscale3 deleted the fix/o11y-queue-namespace branch July 10, 2026 18:45
@github-actionsgithub-actionsBot mentioned this pull request Jul 10, 2026
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[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads by karthikscale3 · Pull Request #2874 · vercel/workflow · GitHub
Skip to content

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads - #2874

Merged
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace
Jul 10, 2026
Merged

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads#2874
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace

Conversation

@karthikscale3

@karthikscale3karthikscale3 commented Jul 10, 2026

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Contributor

Why

Replaying an eve agent run from the dashboard hangs ~30s and then fails with a 504. Two compounding issues in @workflow/core:

  • Queue namespace is caller-derived. Eve deployments only consume __eve_wkf_workflow_* topics (they set WORKFLOW_QUEUE_NAMESPACE=eve at build time), but start() / recreateRunFromExisting() / reenqueueRun() / wakeUpRun() build queue names from the calling process's env. The dashboard has no namespace set, so its health-check probe and run enqueue publish to unprefixed topics that have no consumer — the message is never dispatched.
  • healthCheck() can hang past its timeout. The poll loop only checks the deadline between iterations; world.streams.get() itself is unbounded. workflow-server holds unwritten streams open for ~2 minutes, so the 2s cross-deployment capability probe in start() hung until the dashboard function's 30s limit killed the request.

What

  • Add a namespace option to StartOptionsBase, RecreateRunOptions, StopSleepOptions, and new ReenqueueRunOptions; thread it into getWorkflowQueueName() and the cross-deployment capability probe. Env fallback behavior is unchanged when the option is omitted.
  • Fold the previously-inline namespace param into HealthCheckOptions.
  • Race streams.get() against the remaining health-check budget so probes fail at the configured deadline instead of hanging.

A follow-up in front will pass the target deployment's namespace from the observability replay / wake-up / deployment-health routes. Longer term, persisting the namespace on the run record would remove the need for callers to supply it.

Validation

  • New unit tests: namespaced health-check topic selection, namespaced enqueue for start/wakeUpRun/reenqueueRun, cross-deployment probe topic, and a hang-regression test (never-resolving streams.get now returns unhealthy at the deadline; previously it hung indefinitely).
  • packages/core full unit suite: 1439 tests pass.

🤖 Generated with Claude Code

…thCheck stream reads
Deployments that use a queue namespace (e.g. eve's __eve_wkf_workflow_*
topics) could not be targeted by cross-context callers: start(),
recreateRunFromExisting(), reenqueueRun(), and wakeUpRun() always built
queue names from the caller's WORKFLOW_QUEUE_NAMESPACE env, so dashboard
replays published to topics the target deployment has no consumer for.
Additionally, healthCheck()'s poll loop only checked its timeout between
iterations while world.streams.get() itself was unbounded — against
workflow-server, which holds unwritten streams open for ~2 minutes, a
2s capability probe hung until the caller's function timed out (the
observed 30s 504s on dashboard replay).
- Add a `namespace` option to StartOptionsBase, RecreateRunOptions,
StopSleepOptions, and new ReenqueueRunOptions; thread it into
getWorkflowQueueName() and the cross-deployment capability probe.
- Fold the inline `namespace` param into HealthCheckOptions.
- Race streams.get() against the remaining health-check budget.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@changeset-bot

changeset-botBot commented Jul 10, 2026

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🦋 Changeset detected

Latest commit: 28c0a0a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch

Not sure what this means? Click here to learn what changesets are.

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

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🧪 E2E Test Results

All tests passed

Summary

PassedFailedSkippedTotal
✅ ▲ Vercel Production145302301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
Total7351010648415

Details by Category

✅ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
✅ nextjs-turbopack15003
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027

📋 View full workflow run

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📊 Workflow Benchmarks

commit 28c0a0a · Fri, 10 Jul 2026 18:45:04 GMT · run logs

Backend: vercel · app: nextjs-turbopack

MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1283 (-11%)1656 🔴1800 🔴2269 🔴30
TTFShook + stream1486 (-18%)1836 🔴1880 🔴2037 🔴30
STSO1020 steps (1-20)301 (-2.4%)320 🔴545 🔴659 🔴19
STSO1020 steps (101-120)418 (-6.5%)431 🔴568 🔴794 🔴19
STSO1020 steps (1001-1020)869 (-2.8%)942 🔴1042 🔴1079 🔴19
WOstream1283 (-11%)16561800226930
WOhook + stream1486 (-18%)18361880203730
SLstream4391 (-11%)5466 🔴5583 🔴5911 🔴30
SLhook + stream4947 (+1.8%)5487 🔴5610 🔴5789 🔴30

Avg deltas compare against the most recent benchmark run on main at the time of this run.

Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)

Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges

🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120

TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@karthikscale3
karthikscale3 marked this pull request as ready for review July 10, 2026 18:29
@karthikscale3
karthikscale3 requested a review from ijjk as a code ownerJuly 10, 2026 18:29
@karthikscale3
karthikscale3 merged commit 48fcc4e into mainJul 10, 2026
103 checks passed
@karthikscale3
karthikscale3 deleted the fix/o11y-queue-namespace branch July 10, 2026 18:45
@github-actionsgithub-actionsBot mentioned this pull request Jul 10, 2026
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' [core] Thread queue namespace through o11y run actions and bound healthCheck stream reads by karthikscale3 · Pull Request #2874 · vercel/workflow · GitHub
Skip to content

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads - #2874

Merged
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace
Jul 10, 2026
Merged

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads#2874
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace

Conversation

@karthikscale3

@karthikscale3karthikscale3 commented Jul 10, 2026

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Why

Replaying an eve agent run from the dashboard hangs ~30s and then fails with a 504. Two compounding issues in @workflow/core:

  • Queue namespace is caller-derived. Eve deployments only consume __eve_wkf_workflow_* topics (they set WORKFLOW_QUEUE_NAMESPACE=eve at build time), but start() / recreateRunFromExisting() / reenqueueRun() / wakeUpRun() build queue names from the calling process's env. The dashboard has no namespace set, so its health-check probe and run enqueue publish to unprefixed topics that have no consumer — the message is never dispatched.
  • healthCheck() can hang past its timeout. The poll loop only checks the deadline between iterations; world.streams.get() itself is unbounded. workflow-server holds unwritten streams open for ~2 minutes, so the 2s cross-deployment capability probe in start() hung until the dashboard function's 30s limit killed the request.

What

  • Add a namespace option to StartOptionsBase, RecreateRunOptions, StopSleepOptions, and new ReenqueueRunOptions; thread it into getWorkflowQueueName() and the cross-deployment capability probe. Env fallback behavior is unchanged when the option is omitted.
  • Fold the previously-inline namespace param into HealthCheckOptions.
  • Race streams.get() against the remaining health-check budget so probes fail at the configured deadline instead of hanging.

A follow-up in front will pass the target deployment's namespace from the observability replay / wake-up / deployment-health routes. Longer term, persisting the namespace on the run record would remove the need for callers to supply it.

Validation

  • New unit tests: namespaced health-check topic selection, namespaced enqueue for start/wakeUpRun/reenqueueRun, cross-deployment probe topic, and a hang-regression test (never-resolving streams.get now returns unhealthy at the deadline; previously it hung indefinitely).
  • packages/core full unit suite: 1439 tests pass.

🤖 Generated with Claude Code

…thCheck stream reads
Deployments that use a queue namespace (e.g. eve's __eve_wkf_workflow_*
topics) could not be targeted by cross-context callers: start(),
recreateRunFromExisting(), reenqueueRun(), and wakeUpRun() always built
queue names from the caller's WORKFLOW_QUEUE_NAMESPACE env, so dashboard
replays published to topics the target deployment has no consumer for.
Additionally, healthCheck()'s poll loop only checked its timeout between
iterations while world.streams.get() itself was unbounded — against
workflow-server, which holds unwritten streams open for ~2 minutes, a
2s capability probe hung until the caller's function timed out (the
observed 30s 504s on dashboard replay).
- Add a `namespace` option to StartOptionsBase, RecreateRunOptions,
StopSleepOptions, and new ReenqueueRunOptions; thread it into
getWorkflowQueueName() and the cross-deployment capability probe.
- Fold the inline `namespace` param into HealthCheckOptions.
- Race streams.get() against the remaining health-check budget.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@changeset-bot

changeset-botBot commented Jul 10, 2026

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🦋 Changeset detected

Latest commit: 28c0a0a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch

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🧪 E2E Test Results

All tests passed

Summary

PassedFailedSkippedTotal
✅ ▲ Vercel Production145302301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
Total7351010648415

Details by Category

✅ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
✅ nextjs-turbopack15003
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027

📋 View full workflow run

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📊 Workflow Benchmarks

commit 28c0a0a · Fri, 10 Jul 2026 18:45:04 GMT · run logs

Backend: vercel · app: nextjs-turbopack

MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1283 (-11%)1656 🔴1800 🔴2269 🔴30
TTFShook + stream1486 (-18%)1836 🔴1880 🔴2037 🔴30
STSO1020 steps (1-20)301 (-2.4%)320 🔴545 🔴659 🔴19
STSO1020 steps (101-120)418 (-6.5%)431 🔴568 🔴794 🔴19
STSO1020 steps (1001-1020)869 (-2.8%)942 🔴1042 🔴1079 🔴19
WOstream1283 (-11%)16561800226930
WOhook + stream1486 (-18%)18361880203730
SLstream4391 (-11%)5466 🔴5583 🔴5911 🔴30
SLhook + stream4947 (+1.8%)5487 🔴5610 🔴5789 🔴30

Avg deltas compare against the most recent benchmark run on main at the time of this run.

Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)

Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges

🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120

TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@karthikscale3
karthikscale3 marked this pull request as ready for review July 10, 2026 18:29
@karthikscale3
karthikscale3 requested a review from ijjk as a code ownerJuly 10, 2026 18:29
@karthikscale3
karthikscale3 merged commit 48fcc4e into mainJul 10, 2026
103 checks passed
@karthikscale3
karthikscale3 deleted the fix/o11y-queue-namespace branch July 10, 2026 18:45
@github-actionsgithub-actionsBot mentioned this pull request Jul 10, 2026
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Highlight search terms from Google/DuckDuckGo/Bing referrer (function() { var ref = document.referrer; var terms = []; if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) { var url = new URL(ref); var q = url.searchParams.get('q') || url.searchParams.get('p'); if (q) { terms = q.split(/\s+/).filter(function(t) { return t.length > 2; }); } } if (terms.length === 0) return; var style = document.createElement('style'); style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }'; document.head.appendChild(style); function highlight(node) { if (node.nodeType === 3) { // text node var text = node.textContent; var found = false; terms.forEach(function(term) { var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' [core] Thread queue namespace through o11y run actions and bound healthCheck stream reads by karthikscale3 · Pull Request #2874 · vercel/workflow · GitHub
Skip to content

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads - #2874

Merged
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace
Jul 10, 2026
Merged

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads#2874
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace

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@karthikscale3

@karthikscale3karthikscale3 commented Jul 10, 2026

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Why

Replaying an eve agent run from the dashboard hangs ~30s and then fails with a 504. Two compounding issues in @workflow/core:

  • Queue namespace is caller-derived. Eve deployments only consume __eve_wkf_workflow_* topics (they set WORKFLOW_QUEUE_NAMESPACE=eve at build time), but start() / recreateRunFromExisting() / reenqueueRun() / wakeUpRun() build queue names from the calling process's env. The dashboard has no namespace set, so its health-check probe and run enqueue publish to unprefixed topics that have no consumer — the message is never dispatched.
  • healthCheck() can hang past its timeout. The poll loop only checks the deadline between iterations; world.streams.get() itself is unbounded. workflow-server holds unwritten streams open for ~2 minutes, so the 2s cross-deployment capability probe in start() hung until the dashboard function's 30s limit killed the request.

What

  • Add a namespace option to StartOptionsBase, RecreateRunOptions, StopSleepOptions, and new ReenqueueRunOptions; thread it into getWorkflowQueueName() and the cross-deployment capability probe. Env fallback behavior is unchanged when the option is omitted.
  • Fold the previously-inline namespace param into HealthCheckOptions.
  • Race streams.get() against the remaining health-check budget so probes fail at the configured deadline instead of hanging.

A follow-up in front will pass the target deployment's namespace from the observability replay / wake-up / deployment-health routes. Longer term, persisting the namespace on the run record would remove the need for callers to supply it.

Validation

  • New unit tests: namespaced health-check topic selection, namespaced enqueue for start/wakeUpRun/reenqueueRun, cross-deployment probe topic, and a hang-regression test (never-resolving streams.get now returns unhealthy at the deadline; previously it hung indefinitely).
  • packages/core full unit suite: 1439 tests pass.

🤖 Generated with Claude Code

…thCheck stream reads
Deployments that use a queue namespace (e.g. eve's __eve_wkf_workflow_*
topics) could not be targeted by cross-context callers: start(),
recreateRunFromExisting(), reenqueueRun(), and wakeUpRun() always built
queue names from the caller's WORKFLOW_QUEUE_NAMESPACE env, so dashboard
replays published to topics the target deployment has no consumer for.
Additionally, healthCheck()'s poll loop only checked its timeout between
iterations while world.streams.get() itself was unbounded — against
workflow-server, which holds unwritten streams open for ~2 minutes, a
2s capability probe hung until the caller's function timed out (the
observed 30s 504s on dashboard replay).
- Add a `namespace` option to StartOptionsBase, RecreateRunOptions,
StopSleepOptions, and new ReenqueueRunOptions; thread it into
getWorkflowQueueName() and the cross-deployment capability probe.
- Fold the inline `namespace` param into HealthCheckOptions.
- Race streams.get() against the remaining health-check budget.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@changeset-bot

changeset-botBot commented Jul 10, 2026

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🦋 Changeset detected

Latest commit: 28c0a0a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch

Not sure what this means? Click here to learn what changesets are.

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

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🧪 E2E Test Results

All tests passed

Summary

PassedFailedSkippedTotal
✅ ▲ Vercel Production145302301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
Total7351010648415

Details by Category

✅ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
✅ nextjs-turbopack15003
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027

📋 View full workflow run

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📊 Workflow Benchmarks

commit 28c0a0a · Fri, 10 Jul 2026 18:45:04 GMT · run logs

Backend: vercel · app: nextjs-turbopack

MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1283 (-11%)1656 🔴1800 🔴2269 🔴30
TTFShook + stream1486 (-18%)1836 🔴1880 🔴2037 🔴30
STSO1020 steps (1-20)301 (-2.4%)320 🔴545 🔴659 🔴19
STSO1020 steps (101-120)418 (-6.5%)431 🔴568 🔴794 🔴19
STSO1020 steps (1001-1020)869 (-2.8%)942 🔴1042 🔴1079 🔴19
WOstream1283 (-11%)16561800226930
WOhook + stream1486 (-18%)18361880203730
SLstream4391 (-11%)5466 🔴5583 🔴5911 🔴30
SLhook + stream4947 (+1.8%)5487 🔴5610 🔴5789 🔴30

Avg deltas compare against the most recent benchmark run on main at the time of this run.

Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)

Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges

🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120

TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@karthikscale3
karthikscale3 marked this pull request as ready for review July 10, 2026 18:29
@karthikscale3
karthikscale3 requested a review from ijjk as a code ownerJuly 10, 2026 18:29
@karthikscale3
karthikscale3 merged commit 48fcc4e into mainJul 10, 2026
103 checks passed
@karthikscale3
karthikscale3 deleted the fix/o11y-queue-namespace branch July 10, 2026 18:45
@github-actionsgithub-actionsBot mentioned this pull request Jul 10, 2026
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@karthikscale3@VaguelySerious
, 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ' [core] Thread queue namespace through o11y run actions and bound healthCheck stream reads by karthikscale3 · Pull Request #2874 · vercel/workflow · GitHub
Skip to content

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads - #2874

Merged
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace
Jul 10, 2026
Merged

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads#2874
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace

Conversation

@karthikscale3

@karthikscale3karthikscale3 commented Jul 10, 2026

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Why

Replaying an eve agent run from the dashboard hangs ~30s and then fails with a 504. Two compounding issues in @workflow/core:

  • Queue namespace is caller-derived. Eve deployments only consume __eve_wkf_workflow_* topics (they set WORKFLOW_QUEUE_NAMESPACE=eve at build time), but start() / recreateRunFromExisting() / reenqueueRun() / wakeUpRun() build queue names from the calling process's env. The dashboard has no namespace set, so its health-check probe and run enqueue publish to unprefixed topics that have no consumer — the message is never dispatched.
  • healthCheck() can hang past its timeout. The poll loop only checks the deadline between iterations; world.streams.get() itself is unbounded. workflow-server holds unwritten streams open for ~2 minutes, so the 2s cross-deployment capability probe in start() hung until the dashboard function's 30s limit killed the request.

What

  • Add a namespace option to StartOptionsBase, RecreateRunOptions, StopSleepOptions, and new ReenqueueRunOptions; thread it into getWorkflowQueueName() and the cross-deployment capability probe. Env fallback behavior is unchanged when the option is omitted.
  • Fold the previously-inline namespace param into HealthCheckOptions.
  • Race streams.get() against the remaining health-check budget so probes fail at the configured deadline instead of hanging.

A follow-up in front will pass the target deployment's namespace from the observability replay / wake-up / deployment-health routes. Longer term, persisting the namespace on the run record would remove the need for callers to supply it.

Validation

  • New unit tests: namespaced health-check topic selection, namespaced enqueue for start/wakeUpRun/reenqueueRun, cross-deployment probe topic, and a hang-regression test (never-resolving streams.get now returns unhealthy at the deadline; previously it hung indefinitely).
  • packages/core full unit suite: 1439 tests pass.

🤖 Generated with Claude Code

…thCheck stream reads
Deployments that use a queue namespace (e.g. eve's __eve_wkf_workflow_*
topics) could not be targeted by cross-context callers: start(),
recreateRunFromExisting(), reenqueueRun(), and wakeUpRun() always built
queue names from the caller's WORKFLOW_QUEUE_NAMESPACE env, so dashboard
replays published to topics the target deployment has no consumer for.
Additionally, healthCheck()'s poll loop only checked its timeout between
iterations while world.streams.get() itself was unbounded — against
workflow-server, which holds unwritten streams open for ~2 minutes, a
2s capability probe hung until the caller's function timed out (the
observed 30s 504s on dashboard replay).
- Add a `namespace` option to StartOptionsBase, RecreateRunOptions,
StopSleepOptions, and new ReenqueueRunOptions; thread it into
getWorkflowQueueName() and the cross-deployment capability probe.
- Fold the inline `namespace` param into HealthCheckOptions.
- Race streams.get() against the remaining health-check budget.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@changeset-bot

changeset-botBot commented Jul 10, 2026

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🦋 Changeset detected

Latest commit: 28c0a0a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch

Not sure what this means? Click here to learn what changesets are.

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

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🧪 E2E Test Results

All tests passed

Summary

PassedFailedSkippedTotal
✅ ▲ Vercel Production145302301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
Total7351010648415

Details by Category

✅ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
✅ nextjs-turbopack15003
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027

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📊 Workflow Benchmarks

commit 28c0a0a · Fri, 10 Jul 2026 18:45:04 GMT · run logs

Backend: vercel · app: nextjs-turbopack

MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1283 (-11%)1656 🔴1800 🔴2269 🔴30
TTFShook + stream1486 (-18%)1836 🔴1880 🔴2037 🔴30
STSO1020 steps (1-20)301 (-2.4%)320 🔴545 🔴659 🔴19
STSO1020 steps (101-120)418 (-6.5%)431 🔴568 🔴794 🔴19
STSO1020 steps (1001-1020)869 (-2.8%)942 🔴1042 🔴1079 🔴19
WOstream1283 (-11%)16561800226930
WOhook + stream1486 (-18%)18361880203730
SLstream4391 (-11%)5466 🔴5583 🔴5911 🔴30
SLhook + stream4947 (+1.8%)5487 🔴5610 🔴5789 🔴30

Avg deltas compare against the most recent benchmark run on main at the time of this run.

Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)

Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges

🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120

TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@karthikscale3
karthikscale3 marked this pull request as ready for review July 10, 2026 18:29
@karthikscale3
karthikscale3 requested a review from ijjk as a code ownerJuly 10, 2026 18:29
@karthikscale3
karthikscale3 merged commit 48fcc4e into mainJul 10, 2026
103 checks passed
@karthikscale3
karthikscale3 deleted the fix/o11y-queue-namespace branch July 10, 2026 18:45
@github-actionsgithub-actionsBot mentioned this pull request Jul 10, 2026
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@karthikscale3@VaguelySerious
, 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' [core] Thread queue namespace through o11y run actions and bound healthCheck stream reads by karthikscale3 · Pull Request #2874 · vercel/workflow · GitHub
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[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads - #2874

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karthikscale3 merged 2 commits into
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fix/o11y-queue-namespace
Jul 10, 2026
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[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads#2874
karthikscale3 merged 2 commits into
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fix/o11y-queue-namespace

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@karthikscale3

@karthikscale3karthikscale3 commented Jul 10, 2026

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Why

Replaying an eve agent run from the dashboard hangs ~30s and then fails with a 504. Two compounding issues in @workflow/core:

  • Queue namespace is caller-derived. Eve deployments only consume __eve_wkf_workflow_* topics (they set WORKFLOW_QUEUE_NAMESPACE=eve at build time), but start() / recreateRunFromExisting() / reenqueueRun() / wakeUpRun() build queue names from the calling process's env. The dashboard has no namespace set, so its health-check probe and run enqueue publish to unprefixed topics that have no consumer — the message is never dispatched.
  • healthCheck() can hang past its timeout. The poll loop only checks the deadline between iterations; world.streams.get() itself is unbounded. workflow-server holds unwritten streams open for ~2 minutes, so the 2s cross-deployment capability probe in start() hung until the dashboard function's 30s limit killed the request.

What

  • Add a namespace option to StartOptionsBase, RecreateRunOptions, StopSleepOptions, and new ReenqueueRunOptions; thread it into getWorkflowQueueName() and the cross-deployment capability probe. Env fallback behavior is unchanged when the option is omitted.
  • Fold the previously-inline namespace param into HealthCheckOptions.
  • Race streams.get() against the remaining health-check budget so probes fail at the configured deadline instead of hanging.

A follow-up in front will pass the target deployment's namespace from the observability replay / wake-up / deployment-health routes. Longer term, persisting the namespace on the run record would remove the need for callers to supply it.

Validation

  • New unit tests: namespaced health-check topic selection, namespaced enqueue for start/wakeUpRun/reenqueueRun, cross-deployment probe topic, and a hang-regression test (never-resolving streams.get now returns unhealthy at the deadline; previously it hung indefinitely).
  • packages/core full unit suite: 1439 tests pass.

🤖 Generated with Claude Code

…thCheck stream reads
Deployments that use a queue namespace (e.g. eve's __eve_wkf_workflow_*
topics) could not be targeted by cross-context callers: start(),
recreateRunFromExisting(), reenqueueRun(), and wakeUpRun() always built
queue names from the caller's WORKFLOW_QUEUE_NAMESPACE env, so dashboard
replays published to topics the target deployment has no consumer for.
Additionally, healthCheck()'s poll loop only checked its timeout between
iterations while world.streams.get() itself was unbounded — against
workflow-server, which holds unwritten streams open for ~2 minutes, a
2s capability probe hung until the caller's function timed out (the
observed 30s 504s on dashboard replay).
- Add a `namespace` option to StartOptionsBase, RecreateRunOptions,
StopSleepOptions, and new ReenqueueRunOptions; thread it into
getWorkflowQueueName() and the cross-deployment capability probe.
- Fold the inline `namespace` param into HealthCheckOptions.
- Race streams.get() against the remaining health-check budget.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@changeset-bot

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🦋 Changeset detected

Latest commit: 28c0a0a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch

Not sure what this means? Click here to learn what changesets are.

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

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🧪 E2E Test Results

All tests passed

Summary

PassedFailedSkippedTotal
✅ ▲ Vercel Production145302301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
Total7351010648415

Details by Category

✅ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
✅ nextjs-turbopack15003
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027

📋 View full workflow run

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📊 Workflow Benchmarks

commit 28c0a0a · Fri, 10 Jul 2026 18:45:04 GMT · run logs

Backend: vercel · app: nextjs-turbopack

MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1283 (-11%)1656 🔴1800 🔴2269 🔴30
TTFShook + stream1486 (-18%)1836 🔴1880 🔴2037 🔴30
STSO1020 steps (1-20)301 (-2.4%)320 🔴545 🔴659 🔴19
STSO1020 steps (101-120)418 (-6.5%)431 🔴568 🔴794 🔴19
STSO1020 steps (1001-1020)869 (-2.8%)942 🔴1042 🔴1079 🔴19
WOstream1283 (-11%)16561800226930
WOhook + stream1486 (-18%)18361880203730
SLstream4391 (-11%)5466 🔴5583 🔴5911 🔴30
SLhook + stream4947 (+1.8%)5487 🔴5610 🔴5789 🔴30

Avg deltas compare against the most recent benchmark run on main at the time of this run.

Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)

Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges

🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120

TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@karthikscale3
karthikscale3 marked this pull request as ready for review July 10, 2026 18:29
@karthikscale3
karthikscale3 requested a review from ijjk as a code ownerJuly 10, 2026 18:29
@karthikscale3
karthikscale3 merged commit 48fcc4e into mainJul 10, 2026
103 checks passed
@karthikscale3
karthikscale3 deleted the fix/o11y-queue-namespace branch July 10, 2026 18:45
@github-actionsgithub-actionsBot mentioned this pull request Jul 10, 2026
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@karthikscale3@VaguelySerious
, 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); })(); [core] Thread queue namespace through o11y run actions and bound healthCheck stream reads by karthikscale3 · Pull Request #2874 · vercel/workflow · GitHub
Skip to content

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads - #2874

Merged
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace
Jul 10, 2026
Merged

[core] Thread queue namespace through o11y run actions and bound healthCheck stream reads#2874
karthikscale3 merged 2 commits into
mainfrom
fix/o11y-queue-namespace

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@karthikscale3

@karthikscale3karthikscale3 commented Jul 10, 2026

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Why

Replaying an eve agent run from the dashboard hangs ~30s and then fails with a 504. Two compounding issues in @workflow/core:

  • Queue namespace is caller-derived. Eve deployments only consume __eve_wkf_workflow_* topics (they set WORKFLOW_QUEUE_NAMESPACE=eve at build time), but start() / recreateRunFromExisting() / reenqueueRun() / wakeUpRun() build queue names from the calling process's env. The dashboard has no namespace set, so its health-check probe and run enqueue publish to unprefixed topics that have no consumer — the message is never dispatched.
  • healthCheck() can hang past its timeout. The poll loop only checks the deadline between iterations; world.streams.get() itself is unbounded. workflow-server holds unwritten streams open for ~2 minutes, so the 2s cross-deployment capability probe in start() hung until the dashboard function's 30s limit killed the request.

What

  • Add a namespace option to StartOptionsBase, RecreateRunOptions, StopSleepOptions, and new ReenqueueRunOptions; thread it into getWorkflowQueueName() and the cross-deployment capability probe. Env fallback behavior is unchanged when the option is omitted.
  • Fold the previously-inline namespace param into HealthCheckOptions.
  • Race streams.get() against the remaining health-check budget so probes fail at the configured deadline instead of hanging.

A follow-up in front will pass the target deployment's namespace from the observability replay / wake-up / deployment-health routes. Longer term, persisting the namespace on the run record would remove the need for callers to supply it.

Validation

  • New unit tests: namespaced health-check topic selection, namespaced enqueue for start/wakeUpRun/reenqueueRun, cross-deployment probe topic, and a hang-regression test (never-resolving streams.get now returns unhealthy at the deadline; previously it hung indefinitely).
  • packages/core full unit suite: 1439 tests pass.

🤖 Generated with Claude Code

…thCheck stream reads
Deployments that use a queue namespace (e.g. eve's __eve_wkf_workflow_*
topics) could not be targeted by cross-context callers: start(),
recreateRunFromExisting(), reenqueueRun(), and wakeUpRun() always built
queue names from the caller's WORKFLOW_QUEUE_NAMESPACE env, so dashboard
replays published to topics the target deployment has no consumer for.
Additionally, healthCheck()'s poll loop only checked its timeout between
iterations while world.streams.get() itself was unbounded — against
workflow-server, which holds unwritten streams open for ~2 minutes, a
2s capability probe hung until the caller's function timed out (the
observed 30s 504s on dashboard replay).
- Add a `namespace` option to StartOptionsBase, RecreateRunOptions,
StopSleepOptions, and new ReenqueueRunOptions; thread it into
getWorkflowQueueName() and the cross-deployment capability probe.
- Fold the inline `namespace` param into HealthCheckOptions.
- Race streams.get() against the remaining health-check budget.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@changeset-bot

changeset-botBot commented Jul 10, 2026

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🦋 Changeset detected

Latest commit: 28c0a0a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch

Not sure what this means? Click here to learn what changesets are.

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

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🧪 E2E Test Results

All tests passed

Summary

PassedFailedSkippedTotal
✅ ▲ Vercel Production145302301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
Total7351010648415

Details by Category

✅ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
✅ nextjs-turbopack15003
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027

📋 View full workflow run

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📊 Workflow Benchmarks

commit 28c0a0a · Fri, 10 Jul 2026 18:45:04 GMT · run logs

Backend: vercel · app: nextjs-turbopack

MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1283 (-11%)1656 🔴1800 🔴2269 🔴30
TTFShook + stream1486 (-18%)1836 🔴1880 🔴2037 🔴30
STSO1020 steps (1-20)301 (-2.4%)320 🔴545 🔴659 🔴19
STSO1020 steps (101-120)418 (-6.5%)431 🔴568 🔴794 🔴19
STSO1020 steps (1001-1020)869 (-2.8%)942 🔴1042 🔴1079 🔴19
WOstream1283 (-11%)16561800226930
WOhook + stream1486 (-18%)18361880203730
SLstream4391 (-11%)5466 🔴5583 🔴5911 🔴30
SLhook + stream4947 (+1.8%)5487 🔴5610 🔴5789 🔴30

Avg deltas compare against the most recent benchmark run on main at the time of this run.

Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)

Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges

🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120

TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@karthikscale3
karthikscale3 marked this pull request as ready for review July 10, 2026 18:29
@karthikscale3
karthikscale3 requested a review from ijjk as a code ownerJuly 10, 2026 18:29
@karthikscale3
karthikscale3 merged commit 48fcc4e into mainJul 10, 2026
103 checks passed
@karthikscale3
karthikscale3 deleted the fix/o11y-queue-namespace branch July 10, 2026 18:45
@github-actionsgithub-actionsBot mentioned this pull request Jul 10, 2026
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@karthikscale3@VaguelySerious