# Pattern Doc Entity
### Scope
- **Purpose**: Document design pattern specifications for `api_xai`.
- **Responsibility**: Master file listing all pattern doc instances with ID, name, and status.
- **In Scope**: Module structure patterns, API design patterns, architectural conventions.
- **Out of Scope**: API contracts (see api/), feature specifications (see feature/).
### Overview Table
| 001 | [Module Organization](001_module_organization.md) | mod_interface pattern and module structure conventions for all source modules | ✅ |