Dhii

Design, explain, review, and refactor language-agnostic config-based modular architectures based on keyed definitions, deterministic composition, overrides, extensions, scoped configuration, and host-owned platform integration. Use this skill whenever the user asks about modularity, plugin systems, add-ons, module loading, service providers, dependency injection, configuration-driven architecture, extensibility, event or hook pipelines, middleware-style handler layering, reusable cross-platform modules, separating host/platform policy from reusable module configuration, binding or aliasing services between modules, comparing framework DI/providers to portable modularity, feature flags versus modular composition, debug or diagnostic modules, testing composition semantics, or how complex systems emerge from simple config primitives.