Run the canonical build plus all nine per-project test commands from docs/TESTING.md. Never uses solution-level dotnet test.
Create or re-baseline lean, repository-grounded implementation plans and persistent dev docs when users ask for an implementation plan, technical plan, feature plan, refactor plan, or dev-docs workstream.
Senior CTO review workflow for repository-grounded implementation-plan workstreams used before coding.
Apply project EF Core conventions for repositories, DbContext setup, query filters, migrations, and seeded lookup data.
Create a self-contained HTML artifact focused on a high-quality SVG architecture or system diagram with minimal supporting prose.
Create a pragmatic self-contained HTML plan that organizes the user's plan content visually without expanding the scope unnecessarily.
Create a self-contained HTML artifact for reports, explainers, comparisons, prototypes, or decks when no narrower HTML diagram or plan skill applies.
Create, edit, or fix Lottie/Bodymovin JSON animations for the local Skia Skottie player. Use for text-to-Lottie, SVG/logo/type animation, loaders/icons, state feedback, UI microinteractions, lower thirds, diagrams, data/stat/chart animations, product promos, scene/camera motion, visual effects, scene edits, slots/controls, and Skottie debugging.