# Tasks: Add Authentication & Authorization System

**Change ID:** `add-authentication`

## Task List

- [ ] `auth-proto`: Define Auth service protobuf messages
- [ ] `token-manager`: Implement token validation and management
- [ ] `auth-interceptor`: Create gRPC authentication interceptor
- [ ] `permission-checker`: Implement permission validation logic
- [ ] `auth-tests`: Write unit and integration tests
- [ ] `auth-config`: Setup token configuration and loading
- [ ] `auth-docs`: Document authentication system