pattern-enforcementlisted

# Pattern Enforcement Ensure code follows established project patterns and conventions. ## Discovery Phase Before implementing, identify project patterns: 1. **Check CLAUDE.md** for documented conventions 2. **Search for similar code** to understand existing patterns 3. **Look for pattern indicators:** - Factory functions - Registry patterns - Repository pattern for data access - Adapter pattern for integrations - Strategy pattern for variants ## Common Patterns to Enforce ### Structural Patterns **Registry Pattern:** | Language | Idiomatic Form | |----------|---------------| | TypeScript | `const registry = new Map<string, Handler>(); registry.set('key', impl);` | | Go | `var registry = map[string]Handler{}` with `sync.RWMutex` for concurrent access | | Rust | `lazy_static! { static ref REGISTRY: Mutex<HashMap<String, Box<dyn Handler>>> = ...; }` | | C# | `services.AddSingleton<IRegistry, Registry>();` via DI container | | Java | `@Component` with `Map<String, Handler>` injected via Spring | | Elixir | `Registry` module or ETS-backed lookup | **Factory Pattern:** | Language | Idiomatic Form | |----------|---------------| | TypeScript | `function createUser(data: UserInput): User { ... }` | | Go | `func NewUser(data UserInput) (*User, error) { ... }` | | Rust | `impl User { pub fn new(data: UserInput) -> Result<Self> { ... } }` | | C# | `public static User Create(UserInput data) { ... }` | | Java | `public static User create(UserInput data) { ... }` |