# Pattern Doc Entity
### Scope
- **Purpose**: Document the architectural patterns and design decisions that shape willbe's internal structure.
- **Responsibility**: Registry and overview of all pattern doc instances.
- **In Scope**: Layer decomposition, module organization, design rationale.
- **Out of Scope**: API signatures (see `../api/`), feature behavior (see `../feature/`), implementation details.
### Files
| `procedure.md` | Instance creation and deprecation procedure |
### Overview Table
| 001 | [Layer Architecture](001_layer_architecture.md) | Five-layer CLI→Command→Action→Entity→Tool decomposition | ✅ |