freeze fix

.opencode/skills/semantics-svelte/SKILL.md

@@ -264,6 +264,22 @@ search_contracts query="users" type="Model"
 | **Store** (`BINDS_TO -> [storeId]`) | Global cross-route state (auth, notifications, task drawer). Persists across navigation. |
 | **Inline $state** | Local component UI state (accordion open, tooltip visible, input focus). No cross-component invariants. |
 
+### Model Decomposition Gate
+
+Models accumulate methods as features grow. To prevent "god object" anti-pattern:
+
+| Threshold | Action |
+|-----------|--------|
+| Model > **400 lines** | Decompose — extract domain helpers or split into submodels |
+| Model > **40 public methods** | Split into submodels by responsibility (e.g. `FiltersModel`, `SelectionModel`, `GitActionsModel`) |
+
+**Submodel split example for DashboardHubModel:**
+- `DashboardFiltersModel` — search, column filters, sort
+- `DashboardSelectionModel` — checkbox, select all/visible, bulk actions
+- `DashboardGitActionsModel` — git init, sync, commit, pull, push
+
+Before decomposition, the model MUST carry `@INVARIANT DECOMPOSITION GATE` with the split plan and line count.
+
 ## IV. IMPLEMENTATION & ACCESSIBILITY (A11Y)
 
 1. **Event Handling:** Use native attributes (e.g., `onclick={handler}`, `onchange={handler}`).