When you create a GitHub App, you can select the permissions it needs to access end user data. Permissions can also be added and removed. For more information, see "Editing a GitHub App's permissions."
元数据权限
By default, GitHub Apps have Read-only access to metadata endpoints. Metadata is a collection of read-only endpoints that provide general information about resources that the authorized installation can access.
如果将元数据权限设置为 No access 并选择需要访问仓库的权限，GitHub 将覆盖您的选择并将元数据权限设回 Read-only。 要将元数据权限设置为 No access，必须先将需要访问仓库的所有权限设置为 No access。 For a list of metadata endpoints, see "Metadata permissions."