# Doc Entities

## Master Doc Entities Table

| Type | Purpose | Master File | Instances |
|------|---------|------------|-----------|
| `api/` | HTTP endpoint contracts and wire types | docs/api/readme.md | 1 |
| `feature/` | Optional capability behavioral specs | docs/feature/readme.md | 1 |
| `invariant/` | Non-negotiable system constraints | docs/invariant/readme.md | 2 |
| `operation/` | Operational procedures and setup guides | docs/operation/readme.md | 1 |
| `pattern/` | Reusable design and code patterns | docs/pattern/readme.md | 1 |

## Master Doc Instances Table

| Entity | ID | Name | File |
|--------|-----|------|------|
| `api/` | 001 | Endpoint Coverage | docs/api/001_endpoint_coverage.md |
| `feature/` | 001 | Enterprise Reliability | docs/feature/001_enterprise_reliability.md |
| `invariant/` | 001 | Thin Client Principle | docs/invariant/001_thin_client_principle.md |
| `invariant/` | 002 | Testing Standards | docs/invariant/002_testing_standards.md |
| `operation/` | 001 | Secret Loading | docs/operation/001_secret_loading.md |
| `pattern/` | 001 | Module Organization | docs/pattern/001_module_organization.md |
