[BUG] Oncall Issue Triage fails to find relevant issues

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

The https://github.com/anthropics/claude-code/actions/runs/21515316867 github workflow appears to not work correctly.

The workflow fails to find issues updated within 3 days, with high engagement, such as https://github.com/anthropics/claude-code/issues/16497#issuecomment-3819371387
Moreover, sometimes it seems not taking into account the number of upvotes on the original post.

https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20sort%3Aupdated-desc%20%22github-actions%20incorrectly%20closed%20a%20bunch%20of%20issues%22

<img width="1421" height="365" alt="Image" src="https://github.com/user-attachments/assets/56345d23-6b26-4c5b-b226-8d83f438db4b" />

What Should Happen?

Issue https://github.com/anthropics/claude-code/issues/16497 should be listed among the the top candidates.

<img width="1186" height="925" alt="Image" src="https://github.com/user-attachments/assets/67bd0a6f-3fad-4ded-93b0-7894b37db9bf" />

Error Messages/Logs

The workflow instead shows this.

Excellent! I now have good data. Let me calculate engagements for the top candidates:

Issue #21149 (Thai text bug):

Comments: 4
Reactions: 8 thumbs up
Total engagements: 12 (below 50 threshold)
Issue #19339 (Session freeze/deadlock):

Comments: 3
Reactions: 0 (1 thumbs down on bot comment doesn't count)
Total engagements: 3 (well below 50)
Issue #21923 (Memory spike 12GB):

Comments: 1
Reactions: 0
Total engagements: 1 (well below 50)
None of these meet the 50 engagement threshold. Let me check the high-comment issue #16157 which has 1079 comments and already has the "oncall" label:

Steps to Reproduce

Read https://github.com/anthropics/claude-code/actions/runs/21515316867

Claude Model

Other

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

N/A

Platform

Anthropic API

Operating System

Other

Terminal/Shell

Other

Additional Information

This issue was written entirely by a human.