! Quick Design This is the lightweight design path for changes that don't need a full GDD. Full GDD authoring via is the heavyweight path. Use this skill for work under about one week of implementation — tuning adjustments, minor behavioral tweaks, small additions to existing systems, or standalone features too small to warrant a full document. Most tweaks are hours; the one-week ceiling is the limit for a New Small System (see the categories below). Output: When to run: Anytime a change is too small for but too meaningful to implement without a written rationale. --- Every call follows (coll…