# Docs
Design and API documentation for `interval_adapter`.
### Scope
Typed doc entity instances covering the full scope of `interval_adapter`: API traits and types, canonical data structures, user-visible features, behavioral invariants, and architectural patterns.
See [entities.md](entities.md) for the complete registry of all doc instances.
### Responsibility Table
| [entities.md](entities.md) | Master registry of all doc entity types and instances |
| [doc_graph.yml](doc_graph.yml) | Cross-reference graph for all doc instances |
| [api/](api/readme.md) | API reference — public traits, types, and method signatures |
| [data_structure/](data_structure/readme.md) | Data type definitions — canonical interval type and its iterator |
| [feature/](feature/readme.md) | Feature specifications — what the crate does and why |
| [invariant/](invariant/readme.md) | Behavioral contracts — out-of-scope constraints and their rationale |
| [pattern/](pattern/readme.md) | Architectural patterns — design decisions and tradeoffs |