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Backport #3504: [world-vercel] Retry throttled (429) event writes in-process, honoring Retry-After - #3524

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Backport #3504: [world-vercel] Retry throttled (429) event writes in-process, honoring Retry-After#3524
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Automated backport of #3504 to stable (backport job run).

AI recommendation: This is a patch-level reliability fix to internal event-write retry logic: a 429 ThrottleError was escaping to the queue handler instead of being retried in-process as intended, producing observed multi-minute stalls in run progress under write contention. It touches only packages/world-vercel/src/event-retry.ts and its test, both of which exist on stable in essentially the same form, and adds no user-facing API, option, or config surface (the new THROTTLE_RETRY_BUDGET_MS is an internal, test-visible constant with a bounded 30s cap that still falls through to queue redelivery). The change is accompanied by unit tests covering retryAfter honoring, budget exhaustion, and budget independence, so it is a low-risk stall fix appropriate for a maintenance line.

Merge conflicts were resolved by AI (opencode with anthropic/claude-opus-5). Please review the conflict resolution carefully before merging.

…g Retry-After (#3504)

Signed-off-by: Nathan Rajlich <n@n8.io>
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changeset-bot Bot commented Aug 13, 2026

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🦋 Changeset detected

Latest commit: 1319622

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

This PR includes changesets to release 17 packages
Name Type
@workflow/world-vercel Patch
@workflow/cli Patch
@workflow/core Patch
@workflow/web Patch
workflow Patch
@workflow/world-testing Patch
@workflow/builders Patch
@workflow/next Patch
@workflow/nitro Patch
@workflow/vitest Patch
@workflow/web-shared Patch
@workflow/astro Patch
@workflow/nest Patch
@workflow/rollup Patch
@workflow/sveltekit Patch
@workflow/vite Patch
@workflow/nuxt Patch

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