Skill: diagnose-and-file-github-issue
Author: zhubby
Description: Diagnose a reported system or application problem through a short back-and-forth with the user, investigate likely causes in the codebase or runtime context, and create or update a GitHub issue with a clear title, reproduction notes, findings, impact, and open questions. Use when the user reports a bug, failure, regression, environment problem, or unclear system issue and wants structured diagnosis plus issue creation, but does not want implementation or PR work.