Issue Review: cloudflare/workers-sdk#10944

Summary

Custom builds execute multiple times concurrently when multiple files change simultaneously (e.g., during git pull).

Findings

• Created: 2025-10-11
• Updated: 2025-10-17
• Version: Wrangler 4.42.2 -> 4.60.0 (current)
• Component: wrangler (custom build watcher)
• Labels: bug, quick win
• Comments: 1 (reporter provided additional context with screenshot)

Key Evidence

• Open PR exists: PR #10955 "[wrangler] Prevent concurrent custom builds when multiple files change" was created on 2025-10-13 specifically to fix this issue (body contains "Fixes #10944")
• PR Status: Still OPEN, awaiting review (REVIEW_REQUIRED)
• PR Approach: Adds 50ms debounce to custom build watcher, following existing pattern from PR #6866 (assets directory debouncing)
• Related PR #6866 (merged 2024-10-01) added similar debouncing for assets directory but not for custom builds
• Issue has not been fixed in any released version (no changelog entries found)

Recommendation

Status: KEEP OPEN

Reasoning: This is a valid bug with an open PR (#10955) that directly addresses it. The PR was created 2 days after the issue was filed and has a sensible fix using debouncing. The issue should remain open until the PR is reviewed and merged.

Action: Review and merge PR #10955 to close this issue. The PR has been open since 2025-10-13 (over 3 months) and is waiting for review.

Suggested Comment

This issue has an open fix in PR #10955 which adds debouncing to prevent concurrent custom builds. The PR has been waiting for review since October 2025. Once that PR is merged, this issue will be automatically closed.