# Integration Doc Entity

### Scope

- **Purpose**: Document how `derive_tools` integrates with its dependencies and consumers.
- **Responsibility**: Master index for all integration doc instances in this crate.
- **In Scope**: Instance 001 — derive_tools_meta workspace proc-macro companion relationship.
- **Out of Scope**: Internal implementation — see `feature/` and `api/` instances.

### Overview Table

| ID | Name | Purpose | Status |
|----|------|---------|--------|
| 001 | [derive_tools_meta](001_derive_tools_meta.md) | Workspace proc-macro companion that implements the custom derive macros | ✅ |
