# Doc Entities
## Master Doc Entities Table
| `algorithm/` | Formation lifecycle procedure — ordered phases, inputs, outputs | [algorithm/readme.md](algorithm/readme.md) | 1 |
| `api/` | Public trait interface contracts for definition, process, storage, and collection | [api/readme.md](api/readme.md) | 4 |
| `feature/` | End-to-end capability hubs cross-referencing all source, test, and doc artifacts | [feature/readme.md](feature/readme.md) | 2 |
| `invariant/` | Formation correctness properties that must always hold | [invariant/readme.md](invariant/readme.md) | 1 |
## Master Doc Instances Table
| algorithm | 001 | Formation Lifecycle | [algorithm/001_formation_lifecycle.md](algorithm/001_formation_lifecycle.md) |
| api | 001 | Former Definition Traits | [api/001_former_definition.md](api/001_former_definition.md) |
| api | 002 | Formation Process Traits | [api/002_formation_process.md](api/002_formation_process.md) |
| api | 003 | Storage Traits | [api/003_storage.md](api/003_storage.md) |
| api | 004 | Collection Traits | [api/004_collection.md](api/004_collection.md) |
| feature | 001 | Builder Trait Infrastructure | [feature/001_builder_trait_infrastructure.md](feature/001_builder_trait_infrastructure.md) |
| feature | 002 | Collection Subformer | [feature/002_collection_subformer.md](feature/002_collection_subformer.md) |
| invariant | 001 | Formation Integrity | [invariant/001_formation_integrity.md](invariant/001_formation_integrity.md) |