Fix Scope Gate (Required Before Starting) Use this skill only when all conditions below are true: 1. Concrete issue signal exists - Clear failing behavior, error, or regression is identified - Enough evidence exists to begin diagnosis (logs, stack trace, failing test, or reproducible steps) 2. Likely localized fix path - Issue appears constrained to a small area - No expected cross-system redesign or migration 3. Low-to-moderate architectural risk - Fix can be made without foundational changes - No phased rollout/feature-flag strategy is expected 4. Straightforward verification path - Reprodu…