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fix(core): skip replay after terminal event refresh - #2215
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🦋 Changeset detectedLatest commit: 0658e32 The changes in this PR will be included in the next version bump. This PR includes changesets to release 16 packages
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📊 Benchmark Results
workflow with no steps💻 Local Development
workflow with 1 step💻 Local Development
workflow with 10 sequential steps💻 Local Development
workflow with 25 sequential steps💻 Local Development
workflow with 50 sequential steps💻 Local Development
Promise.all with 10 concurrent steps💻 Local Development
Promise.all with 25 concurrent steps💻 Local Development
Promise.all with 50 concurrent steps💻 Local Development
Promise.race with 10 concurrent steps💻 Local Development
Promise.race with 25 concurrent steps💻 Local Development
Promise.race with 50 concurrent steps💻 Local Development
workflow with 10 sequential data payload steps (10KB)💻 Local Development
workflow with 25 sequential data payload steps (10KB)💻 Local Development
workflow with 50 sequential data payload steps (10KB)💻 Local Development
workflow with 10 concurrent data payload steps (10KB)💻 Local Development
workflow with 25 concurrent data payload steps (10KB)💻 Local Development
workflow with 50 concurrent data payload steps (10KB)💻 Local Development
Stream Benchmarks(includes TTFB metrics)workflow with stream💻 Local Development
stream pipeline with 5 transform steps (1MB)💻 Local Development
10 parallel streams (1MB each)💻 Local Development
fan-out fan-in 10 streams (1MB each)💻 Local Development
SummaryFastest Framework by WorldWinner determined by most benchmark wins
Fastest World by FrameworkWinner determined by most benchmark wins
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🧪 E2E Test Results❌ Some tests failed Summary
❌ Failed Tests▲ Vercel Production (4 failed)express (2 failed):
hono (1 failed):
nextjs-turbopack (1 failed):
💻 Local Development (1 failed)nextjs-turbopack-stable-lazy-discovery-disabled (1 failed):
📦 Local Production (1 failed)express-stable (1 failed):
Details by Category❌ ▲ Vercel Production
❌ 💻 Local Development
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✅ 🐘 Local Postgres
✅ 🪟 Windows
✅ 📋 Other
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No backport to This commit explicitly forward-ports stable PR #2214 to To override, re-run the Backport to stable workflow manually via |
This was referenced Jun 2, 2026
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Summary
Forward-ports the terminal run event replay guard from stable PR #2214 to
main's refactored runtime path.mainalready skipped replay when the initially loaded/preloaded event snapshot contained a terminal run event. This adds the same terminal-event check after the elapsed-wait completion path refreshes the event snapshot, so a concurrently recordedrun_failed,run_cancelled, orrun_completedends the current delivery instead of being passed into workflow replay as an orphaned event.Root Cause
A handler can load a running materialized run and an event snapshot, complete an elapsed wait, then refresh events before replaying. If another handler records a terminal run event during that refresh window, the refreshed event log already establishes the run outcome even though this handler's materialized
workflowRun.statusis stillrunning.Without a post-refresh terminal check,
runWorkflowcan see the terminal event as unrelated replay input and the runtime can record or queue an additional divergence/failure path for a run that is already terminal.Validation
fnm exec --using v22.18.0 pnpm installfnm exec --using v22.18.0 pnpm --filter '@workflow/core...' buildfnm exec --using v22.18.0 pnpm --dir packages/core exec vitest run src/runtime.test.ts src/runtime/wait-completion-replay.test.tsgit diff --checkfnm exec --using v22.18.0 pnpm exec biome check packages/core/src/runtime.ts packages/core/src/runtime/wait-completion-replay.test.ts .changeset/terminal-run-event-replay-main.mdValidation caveat: the Biome check completed with the pre-existing
runtime.tscomplexity warnings and the existing unused suppression warning around the constant replay loop; no formatting fixes were applied.