# Docs
### Scope
Design and API documentation for `genfile_core`. Organized as typed doc entity instances: features describe what the library does, invariants define behavioral contracts and performance thresholds.
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) | Doc instance dependency graph for genfile_core |
| [decisions.md](decisions.md) | Architectural decisions made during specification creation |
| [api/](api/readme.md) | API documentation — public interface contracts |
| [feature/](feature/readme.md) | Feature documentation — what the library provides and why |
| [invariant/](invariant/readme.md) | Invariant documentation — performance and quality contracts |