fix(core): replay ordering - preserve adjacent hook delivery order by AndrewBarba · Pull Request #3552 · vercel/workflow

AndrewBarba · 2026-08-14T14:02:56Z

Description

#2473's synchronous replay drain can consume adjacent hook_received events before either workflow continuation runs. The delivery barriers added in #3139 order hooks against earlier waits and steps, but not against earlier hooks, so a later hook with a shorter consumer path can claim the next deterministic step ID first and permanently diverge from the event log.

This reproduced in eve's local-world unified HTTP session lifecycle: the reset-command hook was committed before the turn-result hook, but replay reached notifyTurnCallerStep where history required forwardTurnCancellationStep. Hook deliveries now defer behind earlier hook barriers as well, preserving the committed order across independent hook consumers.

How did you test your changes?

pnpm --filter @workflow/core test passes all 95 core test files (2,118 passing tests and 3 expected failures), including new coverage that reproduces the production ReplayDivergenceError without the fix. pnpm turbo build --filter=@workflow/core and the core typecheck also pass.

I linked the patched core into eve and ran EVE_E2E_MODEL=mock pnpm exec eve eval cancellation/unified-http-session-operations --strict four consecutive times. All four completed 28/28 gates without replay divergence; the stock core deterministically reproduced CORRUPTED_EVENT_LOG. The workspace-wide build remains unavailable locally because the unrelated SWC plugin requires Rust, which is not installed.

PR Checklist - Required to merge

📦 pnpm changeset was run to create a changelog for this PR
- Patch changeset for @workflow/core.
🔒 DCO sign-off passes (git commit --signoff)
📝 Ping @vercel/workflow in a comment once the PR is ready, and the above checklist is complete

Signed-off-by: Andrew Barba <barba@hey.com>

vercel · 2026-08-14T14:03:00Z

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

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview	Aug 14, 2026 5:13pm
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changeset-bot · 2026-08-14T14:03:08Z

🦋 Changeset detected

Latest commit: 4f9757d

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

This PR includes changesets to release 16 packages

Name	Type
@workflow/core	Patch
@workflow/builders	Patch
@workflow/cli	Patch
@workflow/next	Patch
@workflow/nitro	Patch
@workflow/vitest	Patch
@workflow/web-shared	Patch
@workflow/web	Patch
workflow	Patch
@workflow/world-testing	Patch
@workflow/astro	Patch
@workflow/nest	Patch
@workflow/rollup	Patch
@workflow/sveltekit	Patch
@workflow/vite	Patch
@workflow/nuxt	Patch

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

AndrewBarba · 2026-08-14T14:03:11Z

@vercel/workflow ready for review.

github-actions · 2026-08-14T14:03:14Z

🧪 E2E Test Results

✅ All tests passed

E2E Test Summary

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	3466	590	4056
✅ 💻 Local Development	3536	520	4056
✅ 📦 Local Production	3810	558	4368
✅ 🐘 Local Postgres	3810	558	4368
✅ 🪟 Windows	312	0	312
✅ vercel-multi-region	27	0	27
Total	14961	2226	17187

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro-node	128	28
✅ astro-quickjs	128	28
✅ example-node	128	28
✅ example-quickjs	128	28
✅ express-node	128	28
✅ express-quickjs	128	28
✅ fastify-node	128	28
✅ fastify-quickjs	128	28
✅ hono-node	128	28
✅ hono-quickjs	128	28
✅ nest-node	128	28
✅ nest-quickjs	128	28
✅ nextjs-turbopack-node	153	3
✅ nextjs-turbopack-quickjs	153	3
✅ nextjs-webpack-node	153	3
✅ nextjs-webpack-quickjs	153	3
✅ nitro-node	128	28
✅ nitro-quickjs	128	28
✅ nuxt-node	128	28
✅ nuxt-quickjs	128	28
✅ sveltekit-node	147	9
✅ sveltekit-quickjs	147	9
✅ tanstack-start-node	128	28
✅ tanstack-start-quickjs	128	28
✅ vite-node	128	28
✅ vite-quickjs	128	28

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable-node	130	26
✅ astro-stable-quickjs	130	26
✅ express-stable-node	130	26
✅ express-stable-quickjs	130	26
✅ fastify-stable-node	130	26
✅ fastify-stable-quickjs	130	26
✅ hono-stable-node	130	26
✅ hono-stable-quickjs	130	26
✅ nest-stable-node	130	26
✅ nest-stable-quickjs	130	26
✅ nextjs-turbopack-canary-node	137	19
✅ nextjs-turbopack-canary-quickjs	137	19
✅ nextjs-turbopack-stable-node	156	0
✅ nextjs-turbopack-stable-quickjs	156	0
✅ nextjs-webpack-stable-node	156	0
✅ nextjs-webpack-stable-quickjs	156	0
✅ nitro-stable-node	130	26
✅ nitro-stable-quickjs	130	26
✅ nuxt-stable-node	130	26
✅ nuxt-stable-quickjs	130	26
✅ sveltekit-stable-node	149	7
✅ sveltekit-stable-quickjs	149	7
✅ tanstack-start-node	130	26
✅ tanstack-start-quickjs	130	26
✅ vite-stable-node	130	26
✅ vite-stable-quickjs	130	26

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable-node	130	26
✅ astro-stable-quickjs	130	26
✅ express-stable-node	130	26
✅ express-stable-quickjs	130	26
✅ fastify-stable-node	130	26
✅ fastify-stable-quickjs	130	26
✅ hono-stable-node	130	26
✅ hono-stable-quickjs	130	26
✅ nest-stable-node	130	26
✅ nest-stable-quickjs	130	26
✅ nextjs-turbopack-canary-node	137	19
✅ nextjs-turbopack-canary-quickjs	137	19
✅ nextjs-turbopack-stable-node	156	0
✅ nextjs-turbopack-stable-quickjs	156	0
✅ nextjs-webpack-canary-node	137	19
✅ nextjs-webpack-canary-quickjs	137	19
✅ nextjs-webpack-stable-node	156	0
✅ nextjs-webpack-stable-quickjs	156	0
✅ nitro-stable-node	130	26
✅ nitro-stable-quickjs	130	26
✅ nuxt-stable-node	130	26
✅ nuxt-stable-quickjs	130	26
✅ sveltekit-stable-node	149	7
✅ sveltekit-stable-quickjs	149	7
✅ tanstack-start-node	130	26
✅ tanstack-start-quickjs	130	26
✅ vite-stable-node	130	26
✅ vite-stable-quickjs	130	26

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable-node	130	26
✅ astro-stable-quickjs	130	26
✅ express-stable-node	130	26
✅ express-stable-quickjs	130	26
✅ fastify-stable-node	130	26
✅ fastify-stable-quickjs	130	26
✅ hono-stable-node	130	26
✅ hono-stable-quickjs	130	26
✅ nest-stable-node	130	26
✅ nest-stable-quickjs	130	26
✅ nextjs-turbopack-canary-node	137	19
✅ nextjs-turbopack-canary-quickjs	137	19
✅ nextjs-turbopack-stable-node	156	0
✅ nextjs-turbopack-stable-quickjs	156	0
✅ nextjs-webpack-canary-node	137	19
✅ nextjs-webpack-canary-quickjs	137	19
✅ nextjs-webpack-stable-node	156	0
✅ nextjs-webpack-stable-quickjs	156	0
✅ nitro-stable-node	130	26
✅ nitro-stable-quickjs	130	26
✅ nuxt-stable-node	130	26
✅ nuxt-stable-quickjs	130	26
✅ sveltekit-stable-node	149	7
✅ sveltekit-stable-quickjs	149	7
✅ tanstack-start-node	130	26
✅ tanstack-start-quickjs	130	26
✅ vite-stable-node	130	26
✅ vite-stable-quickjs	130	26

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack-node	156	0	0
✅ nextjs-turbopack-quickjs	156	0	0

✅ vercel-multi-region

App	Passed	Failed	Skipped
✅ nextjs-turbopack	27	0	0

📋 View full workflow run

github-actions · 2026-08-14T14:03:19Z

📊 Workflow Benchmarks

commit 4f9757d · Fri, 14 Aug 2026 17:32:06 GMT · run logs

Backend: vercel · app: nextjs-turbopack

Metric	Scenario	Best (ms)	P75 (ms)	P90 (ms)	P99 (ms)	Samples
TTFS	step	1308 (+243%) 🔻	1367 🔴 (+22%) 🔻	1393 🔴 (+23%) 🔻	1456 🔴 (-5.0%)	30
TTFS	stream	1288 (+28%) 🔻	1375 🔴 (+30%) 🔻	1393 🔴 (+30%) 🔻	1569 🔴 (+42%) 🔻	30
TTFS	hook + stream	1593 (+25%) 🔻	1677 🔴 (+21%) 🔻	1710 🔴 (+20%) 🔻	1919 🔴 (+18%) 🔻	30
Fan-out TTFS	Promise.all(100 steps)	8998 (+0.9%)	10395 (+4.5%)	10497 (+4.1%)	15746 (+16%) 🔻	10
Fan-out TTLS	Promise.all(100 steps)	17557 (-0.7%)	19183 (+1.7%)	19966 (+5.1%)	24374 (+4.0%)	10
STSO	1020 steps (inline)	130 (+5.7%)	181 (-5.2%)	203 (-11%)	365 (-37%) 💚	1019
WO	1020 steps	181172 (-7.3%)	181172 (-7.3%)	181172 (-7.3%)	181172 (-7.3%)	1
SL	stream latency	87 (+10%)	138 🔴 (+25%) 🔻	283 🔴 (+119%) 🔻	380 🔴 (+11%)	30
SO	stream overhead (text)	100 (-9.9%)	162 (-10%)	349 (+69%) 🔻	1950 🔴 (+223%) 🔻	30
SO	stream overhead (structured)	104 (+8.3%)	155 (-0.6%)	170 (+1.8%)	398 (+119%) 🔻	30

📈 STSO distribution vs main (inline / queue-hop histograms)

1020 steps (inline)

Cumulative STSO time: main 194368ms → this run 180976ms (Δ -13392ms, -7%)

 100-150 ms █████┃ main 180 this 175 -5
150-200 ms █████████████████████░░┃ main 627 this 723 +96
200-250 ms ██┃█ main 134 this 93 -41
250-300 ms ┃ main 29 this 13 -16
300-350 ms ┃ main 15 this 4 -11
350-400 ms ┃ main 11 this 3 -8
400-450 ms ┃ main 4 this 2 -2
450-500 ms ┃ main 5 this 0 -5
500-550 ms ┃ main 3 this 3 +0
550-600 ms ┃ main 1 this 1 +0
600-650 ms ┃ main 5 this 0 -5
650-700 ms ┃ main 1 this 0 -1
750-800 ms ┃ main 1 this 0 -1
800-850 ms ┃ main 1 this 1 +0
1100-1150 ms ┃ main 1 this 0 -1
4450-4500 ms ┃ main 1 this 0 -1
4750-4800 ms ┃ main 0 this 1 +1

📜 Previous results (1)

`5dd4753`

Fri, 14 Aug 2026 14:29:58 GMT · run logs

vercel / nextjs-turbopack

Metric	Scenario	Best (ms)	P75 (ms)	P90 (ms)	P99 (ms)	Samples
TTFS	step	293 (-23%) 💚	1374 🔴 (+23%) 🔻	1405 🔴 (+24%) 🔻	1477 🔴 (-3.6%)	30
TTFS	stream	197 (-80%) 💚	1345 🔴 (+27%) 🔻	1354 🔴 (+27%) 🔻	1486 🔴 (+34%) 🔻	30
TTFS	hook + stream	1585 (+24%) 🔻	1670 🔴 (+20%) 🔻	1754 🔴 (+23%) 🔻	1946 🔴 (+20%) 🔻	30
Fan-out TTFS	Promise.all(100 steps)	8905 (±0%)	9353 (-6.0%)	10490 (+4.1%)	14498 (+7.2%)	10
Fan-out TTLS	Promise.all(100 steps)	17443 (-1.3%)	19081 (+1.1%)	24466 (+29%) 🔻	313435 (+1237%) 🔻	10
STSO	1020 steps (inline)	111 (-9.8%)	161 (-16%) 💚	179 (-22%) 💚	244 (-58%) 💚	1019
WO	1020 steps	159023 (-19%) 💚	159023 (-19%) 💚	159023 (-19%) 💚	159023 (-19%) 💚	1
SL	stream latency	78 (-1.3%)	105 🔴 (-4.5%)	133 🔴 (+3.1%)	207 🔴 (-40%) 💚	30
SO	stream overhead (text)	104 (-6.3%)	147 (-18%) 💚	152 (-26%) 💚	168 (-72%) 💚	30
SO	stream overhead (structured)	114 (+19%) 🔻	154 (-1.3%)	180 (+7.8%)	311 (+71%) 🔻	30

ℹ️ Metric definitions & methodology

_{The collapsed STSO distribution section above buckets every step gap of the sequential-steps run (not a sampled window), split by whether the step ending the gap ran inline — in the same warm process as the step before it, so the gap is pure framework overhead — or after a queue-hop — the first step of a fresh process, which pays queue dispatch, client reinit and event-log replay. Bars overlay the two runs: █ is main, ┃ marks where this run lands, ░ bridges the gap when this run has more samples in a bucket.}

_{Best/P75/P90/P99 deltas compare against the most recent benchmark run on main at the time of this run. 🔻 flags a delta worse than +15%, 💚 one better than −15%.}

_{Metrics — TTFS: time to first step body (in-deployment start() → first step body, deployment clocks) · Fan-out TTFS: fan-out time to first step (in-deployment start() → first of the parallel step bodies to complete) · Fan-out TTLS: fan-out time to last step (in-deployment start() → last of the parallel step bodies to complete, i.e. when the Promise.all resolves) · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (whole-run time outside step bodies, in-deployment anchored) · SL: stream latency (in-deployment write → read propagation, readAt - writtenAt) · SO: stream overhead (end-to-end write+consume time beyond the modelled generation window)}

_{Scenarios — step: one trivial no-op step, no stream; no hooks, so the run stays in turbo mode (in-process fast path) · stream: one streaming step; no hooks, so the run stays in turbo mode (in-process fast path) · hook + stream: registers a hook before one step, which exits turbo mode (dispatch path) · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges, and WO is the whole-run overhead outside step bodies · Promise.all(100 steps): 100 trivial no-op steps started together in a single Promise.all; Fan-out TTFS is the first of them to complete and Fan-out TTLS the last, both from the in-deployment clientStart, so their gap is the spread the runtime adds across the fan-out · stream latency: parallel reader/writer steps on a dedicated stream; SL is the in-deployment write->read propagation (readAt - writtenAt) · stream overhead (text): writer streams 300 variable-length text token deltas paced at 100/s for 3s (a haiku-size LLM's token throughput) while a parallel reader drains the whole stream; SO is the end-to-end write+consume time beyond the 3s generation window (overhead/backpressure) · stream overhead (structured): same workload as stream overhead (text), but each delta is an AI-SDK-style structured object ({ type: 'text-delta', id, text }) instead of a raw string, so the SO gap vs the text scenario is the added serialization cost}

_{🔴 marks a percentile over its target (within target is left unmarked). Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · SO 250/500/1000}

_{All metrics are measured from deployment-side timestamps only. Runs are triggered by an in-deployment route that stamps the anchor (clientStart) right before start(), so the CI runner’s request and its path through api.vercel.com sit outside every measured window. TTFS = in-deployment start() → first step body (turbo uses the in-process fast path, non-turbo the dispatch path), and includes the VQS dispatch hop plus any /flow cold start. Fan-out TTFS/TTLS are the first and last step completions of a single Promise.all over trivial steps, from the same anchor, so the gap between the two rows is the spread the runtime adds across the fan-out. STSO/WO are measured between step bodies on the deployment. SL is measured inside the workflow (parallel reader/writer steps), so it no longer includes the api.vercel.com read path.}

_{Cold starts are kept in the numbers on purpose — they are part of real bursty-workload latency. The workbench deployment cold-starts the /flow invocation for a large fraction of runs, inflating P75+; the Best column shows the fastest (warm-start) sample for comparison.}

github-actions · 2026-08-14T14:06:25Z

Sim World

Simulated world deterministic testing for races. Traces

🟠 Mint-ordered log — 3 fail of 41 total

log=mint-ordered · fence=per-spec

scenario	outcome	events	virt	replay	violations
✅ `smoke-no-steps`	completed	3	0ms	ok	0
✅ `smoke-one-step`	completed	6	0ms	ok	0
✅ `hook-at-step-started`	completed	12	0ms	ok	0
✅ `hook-at-step-completed`	completed	12	0ms	ok	0
✅ `hook-at-hook-created`	completed	12	0ms	ok	0
✅ `deadline-hook-wins`	completed	7	1.0h	ok	0
✅ `deadline-expires`	completed	7	1.0h	ok	0
✅ `long-sleep`	completed	11	30.0d	ok	0
✅ `hook-never-arrives`	stalled	3	0ms	skipped	0
✅ `step-retries-twice`	completed	10	2.0s	ok	0
✅ `parallel-steps`	completed	9	0ms	ok	0
✅ `hook-on-execution-state`	completed	12	0ms	ok	0
✅ `peek-hook-before-branch`	completed	12	0ms	ok	0
✅ `peek-hook-after-branch`	completed	12	0ms	ok	0
✅ `peek-hook-at-registration`	completed	12	0ms	ok	0
✅ `race-hook-before-probe`	completed	12	0ms	ok	0
✅ `race-hook-after-probe`	completed	12	0ms	ok	0
✅ `race-duplicate-delivery`	completed	13	0ms	ok	0
✅ `attr-hook-before-step`	completed	11	0ms	ok	0
✅ `attr-hook-after-step`	completed	11	0ms	ok	0
✅ `attr-from-step-body`	completed	13	0ms	ok	0
✅ `fork-hook-after-timeout`	completed	14	1.0m	ok	0
✅ `fork-hook-before-timeout`	completed	14	1.0m	ok	0
✅ `count-hook-after-timeout`	completed	17	1.0m	ok	0
✅ `count-hook-before-timeout`	completed	20	1.0m	ok	0
✅ `stale-read-step-count-fork`	completed	20	1.0m	ok	0
✅ `stale-read-equal-step-counts`	completed	14	1.0m	ok	0
✅ `step-vs-step-fork`	completed	12	0ms	ok	0
✅ `step-vs-step-fork-fenced`	completed	12	0ms	ok	0
✅ `fence-catches-benign-direction`	completed	12	5ms	ok	0
❌ `in-flight-before-decision`	failed	9	1.0m	MISMATCH	1
❌ `in-flight-before-decision-counted`	failed	9	1.0m	MISMATCH	1
❌ `in-flight-after-decision`	failed	9	1.0m	MISMATCH	1
✅ `stale-read-step-count-fork-fenced`	completed	20	1.0m	ok	0
✅ `fork-hook-wins`	completed	13	1.0m	ok	0
✅ `fork-timeout-wins`	completed	13	1.0m	ok	0
✅ `unclaimed-payload-under-fork`	completed	17	1.0m	ok	0
✅ `claimed-payload-under-fork`	completed	17	1.0m	ok	0
✅ `writers-independent-step-bodies`	completed	12	0ms	ok	0
✅ `writers-scripted-tempo`	completed	12	0ms	ok	0
✅ `cancel-mid-step`	cancelled	7	0ms	skipped	0

Full trace: world-sim-mint.txt

🟢 Append-only log — 0 fail of 41 total

log=append-only · fence=per-spec

scenario	outcome	events	virt	replay
✅ `smoke-no-steps`	completed	3	0ms	ok
✅ `smoke-one-step`	completed	6	0ms	ok
✅ `hook-at-step-started`	completed	12	0ms	ok
✅ `hook-at-step-completed`	completed	12	0ms	ok
✅ `hook-at-hook-created`	completed	12	0ms	ok
✅ `deadline-hook-wins`	completed	7	1.0h	ok
✅ `deadline-expires`	completed	7	1.0h	ok
✅ `long-sleep`	completed	11	30.0d	ok
✅ `hook-never-arrives`	stalled	3	0ms	skipped
✅ `step-retries-twice`	completed	10	2.0s	ok
✅ `parallel-steps`	completed	9	0ms	ok
✅ `hook-on-execution-state`	completed	12	0ms	ok
✅ `peek-hook-before-branch`	completed	12	0ms	ok
✅ `peek-hook-after-branch`	completed	12	0ms	ok
✅ `peek-hook-at-registration`	completed	12	0ms	ok
✅ `race-hook-before-probe`	completed	12	0ms	ok
✅ `race-hook-after-probe`	completed	12	0ms	ok
✅ `race-duplicate-delivery`	completed	13	0ms	ok
✅ `attr-hook-before-step`	completed	11	0ms	ok
✅ `attr-hook-after-step`	completed	11	0ms	ok
✅ `attr-from-step-body`	completed	13	0ms	ok
✅ `fork-hook-after-timeout`	completed	14	1.0m	ok
✅ `fork-hook-before-timeout`	completed	14	1.0m	ok
✅ `count-hook-after-timeout`	completed	17	1.0m	ok
✅ `count-hook-before-timeout`	completed	20	1.0m	ok
✅ `stale-read-step-count-fork`	completed	20	1.0m	ok
✅ `stale-read-equal-step-counts`	completed	14	1.0m	ok
✅ `step-vs-step-fork`	completed	12	0ms	ok
✅ `step-vs-step-fork-fenced`	completed	12	0ms	ok
✅ `fence-catches-benign-direction`	completed	12	5ms	ok
✅ `in-flight-before-decision`	completed	17	1.0m	ok
✅ `in-flight-before-decision-counted`	completed	17	1.0m	ok
✅ `in-flight-after-decision`	completed	19	2.0m	ok
✅ `stale-read-step-count-fork-fenced`	completed	20	1.0m	ok
✅ `fork-hook-wins`	completed	13	1.0m	ok
✅ `fork-timeout-wins`	completed	13	1.0m	ok
✅ `unclaimed-payload-under-fork`	completed	17	1.0m	ok
✅ `claimed-payload-under-fork`	completed	17	1.0m	ok
✅ `writers-independent-step-bodies`	completed	12	0ms	ok
✅ `writers-scripted-tempo`	completed	12	0ms	ok
✅ `cancel-mid-step`	cancelled	7	0ms	skipped

Full trace: world-sim-append-only.txt

VaguelySerious

LGTM, waiting for a few test jobs to complete before approving

github-actions · 2026-08-14T16:41:11Z

Event Log Race Repro

No event-log regressions in the latest repro job.

Run History

Metric	2026-08-14 16:41 UTC #1 logs / deploy	2026-08-14 17:15 UTC #1 logs / deploy
Result	no regressions	no regressions
Total	14	14
completed	14	14
CORRUPTED_EVENT_LOG	0	0
USER_ERROR	0	0
RUNTIME_ERROR	0	0
stuck	0	0
other	0	0
infra	0	0
Config	14 runs / step-storm 6, hook-storm 6, hook-sleep 2 / c8 / 6x8	14 runs / step-storm 6, hook-storm 6, hook-sleep 2 / c8 / 6x8
Timing	watchdog 2500ms / step 2200±250ms / stagger 400ms / poke 750ms / timeout 240000ms	watchdog 2500ms / step 2200±250ms / stagger 400ms / poke 750ms / timeout 240000ms

Latest Scenario Breakdown

Scenario	Total	completed
step-storm	6	6
hook-storm	6	6
hook-sleep	2	2

github-actions · 2026-08-14T16:45:05Z

Event Log Race Repro (world-postgres)

6 of 14 latest repro runs hit event-log regressions.

Run History

Metric	2026-08-14 16:45 UTC #1 logs / deploy	2026-08-14 17:18 UTC #1 logs / deploy
Result	6/14 regressions	6/14 regressions
Total	14	14
completed	8	8
CORRUPTED_EVENT_LOG	0	0
USER_ERROR	0	0
RUNTIME_ERROR	0	0
stuck	6	6
other	0	0
infra	0	0
Config	14 runs / step-storm 6, hook-storm 6, hook-sleep 2 / c8 / 6x8	14 runs / step-storm 6, hook-storm 6, hook-sleep 2 / c8 / 6x8
Timing	watchdog 2500ms / step 2200±250ms / stagger 400ms / poke 750ms / timeout 240000ms	watchdog 2500ms / step 2200±250ms / stagger 400ms / poke 750ms / timeout 240000ms

Latest Scenario Breakdown

Scenario	Total	completed	stuck
step-storm	6	0	6
hook-storm	6	6	0
hook-sleep	2	2	0

Latest Non-Completed Runs

Scenario	Attempt	Outcome	Status	Run
step-storm	2	stuck	running	wrun_01M00M50D2RPZ0ZPB9SFM3PRY8
step-storm	1	stuck	running	wrun_01M00M50D2RPZ0ZPB9SFM3PRY7
step-storm	4	stuck	running	wrun_01M00M50D2RPZ0ZPB9SFM3PRY4
step-storm	5	stuck	running	wrun_01M00M50D2RPZ0ZPB9SFM3PRY5
step-storm	6	stuck	running	wrun_01M00M50D2RPZ0ZPB9SFM3PRY6
step-storm	3	stuck	running	wrun_01M00M50D2RPZ0ZPB9SFM3PRY3

Signed-off-by: Andrew Barba <barba@hey.com>

github-actions · 2026-08-14T17:56:09Z

Backport PR opened against stable: #3557. Merge conflicts were resolved by AI — please review carefully. (backport job run)

) Signed-off-by: Andrew Barba <barba@hey.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

fix(core): preserve order across adjacent hook deliveries
5dd4753
Signed-off-by: Andrew Barba <barba@hey.com>

AndrewBarba requested a review from a team as a code owner August 14, 2026 14:02

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VaguelySerious merged commit 3560218 into mainAug 14, 2026
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VaguelySerious deleted the barba/fix-hook-delivery-ordering branch August 14, 2026 17:51

github-actionsBot mentioned this pull request Aug 14, 2026
Version Packages (beta) #3466
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fix(core): preserve order across adjacent hook deliveries (#3552)
eb9d0d4
Signed-off-by: Andrew Barba <barba@hey.com>

github-actionsBot mentioned this pull request Aug 14, 2026
Backport #3552: fix(core): replay ordering - preserve adjacent hook delivery order #3557
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[e2e] Fix event-log-race-repro for local/postgres #3558
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chore(eve): bump @workflow/* to the latest 5.0.0 betas vercel/eve#2149
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fix(core): preserve order across adjacent hook deliveries (#3552) (#3557
cd9343b
) Signed-off-by: Andrew Barba <barba@hey.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

github-actionsBot mentioned this pull request Aug 24, 2026
Version Packages #3697
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fix(core): replay ordering - preserve adjacent hook delivery order#3552
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Event Log Race Repro

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