# Domain routing

Choose one domain and use its `_template.md`:

| Domain | Use for | Filename example |
|---|---|---|
| `cli` | Executable command-line tools | `kubectl.md` |
| `libraries` | Imported packages, frameworks, and SDKs | `react.md` |
| `apis` | Network services and API contracts | `stripe.md` |
| `workflows` | Repeatable multi-step operating procedures | `release.md` |
| `concepts` | Durable models, standards, and terminology | `oauth.md` |

Prefer the subject's canonical lowercase name. Use hyphens for spaces. Keep one primary subject per file and link related entries rather than duplicating them.

Create a new domain only when none fits and the subject type needs a meaningfully different template. Add `<domain>/_template.md`, then add one row here. Do not create another skill merely to add a domain.