The repo front-door for a Flutter/Dart app — the cross-cutting house rules (feature-first layered MVVM, immutable state with a single write path, Riverpod 3.x for state + DI, typed Result/Failure errors, dumb widgets, injected side effects, complexity limits) plus a routing table that sends each task to its deep-dive skill and a recommended feature build order. Use at the start of any Flutter/Dart work, before writing or reviewing a feature, when deciding which layer or package code belongs in, when unsure which skill governs a task (architecture, state, widgets, persistence, testing, i18n, design), or when onboarding to the conventions.
