Why Skill matters – from prompt to assetWhat is actually in a SkillHow Skills are triggeredSkills as your digital twinA worked example – the company-benchmark SkillThe jobThe architecture – two files, one source of truthThe workflow – five steps, with peer confirmation of the workThe gotchas – the most useful section in any SkillThe audit – how a 22/34 Skill became a 32/34 SkillBuilding your first SkillStep 1 – run the workflow once with AI by handStep 2 – extract the workflow into SKILL.mdStep 3 – split anything reusable into a companion fileStep 4 – test on a fresh example, then auditStep 5 – promote, version, and re-evaluateOrchestration: parent and child SkillsThe three layersA live orchestration exampleWorkbook chainingBuilding a Skills library at scaleThe registry structureSix-month build trajectorySkill governance: quality, lifecycle, and promotionThe Three-Stage quality modelWhere Skills liveLifecycle management: versioning, retirement, and updatingThe canonical source of truthSecurity, portability, and cross-surface considerationsSecurity checklist for Third-Party SkillsCross-Surface portabilityYour 90-Day Skills roadmapSummary