Bug Finder

A research-first bug intake skill. It does not fix code. It investigates a reported defect as deeply as the repo and the open web allow, then files a high-quality, root-cause-backed bug in whatever tracker the project already uses.

The output of this skill is a filed bug ticket, not a code change. Handing the fix off to implementation is a separate step (arc-bug-fixer).

Operating Principles

• Evidence over assumption. Never describe a root cause you have not located in the actual code. Every claim links to file:line.
• Exhaustive before conclusive. Search the repo and the web fully before proposing a fix. A plausible guess is a bug, not a finding.
• One bug, one ticket. If investigation reveals several independent defects, file them separately and cross-link.
• The user usually sends a screenshot. Treat the image as the primary symptom and reason from it. See Screenshot Intake.