Agent Skills serves as a meta-skill that governs how engineering workflow skills are discovered, sequenced, and invoked across the entire development lifecycle. It structures process steps for definition, planning, building, verification, review, and shipping, helping you select the appropriate workflow for any given task. Core operating behaviors mandate surfacing assumptions, managing confusion actively, pushing back on bad ideas, enforcing simplicity, maintaining scope discipline, and verifying work. Reach for this skill when starting a session or determining which engineering workflow or phase applies to your current work.