# What is built

A feature not built yet is `toolchain.not_built_yet` where it is written.

| Feature | Status |
|---|---|
| Everything else on this page | Built. |
| `Driver.github`, `Driver.apple` and `oauth_provider:` | Not built yet. |
| Scope declarations and policy's scope restrictions | Not built yet. As [Policy](/docs/policy.md) specifies, an external method narrows scopes only when it declares the scopes it reads; undeclared provider scope or profile claims never replace application authority. |
| OAuth grants: `OAuthGrant` credentials, the connecting and disconnecting routes and `on_behalf_of:` ([OAuth grants](/docs/oauth-grants.md)) | Not built yet. |