This is a reference to most of Orchestra Platform Contracts, as well as their "service location" counterparts:

ContractsService Location
Orchestra\Contracts\Auth\Guardauth.driver
Orchestra\Contracts\Authorization\Factoryorchestra.acl
Orchestra\Contracts\Authorization\Authorizationorchestra.platform.acl
Orchestra\Contracts\Extension\Factoryorchestra.extension
Orchestra\Contracts\Extension\Finderorchestra.extension.finder
Orchestra\Contracts\Html\Form\Factoryorchestra.form
Orchestra\Contracts\Foundation\Foundationorchestra.app
Orchestra\Contracts\Memory\Providerorchestra.platform.memory
Orchestra\Contracts\Messages\MessageBagorchestra.messages
Orchestra\Contracts\Html\Table\Factoryorchestra.table