Maintain a verification skill A feature map rots the moment the app changes. This skill is the upkeep loop for a skill generated by (or any project-local verification skill with a feature map). The unit of rigor is the feature, not every sentence: cover every feature file from source and exercise every feature live, without terminalising every bullet. Outcomes Pick one, and say which: - clean — every feature got source and live coverage; nothing worth shipping. No branch, no PR. - changed — one PR ships proven doc, harness, or map corrections. - blocked — coverage could not finish or a proven…