Validating a Custom Plug-in in an XML Definition

SuiteCloud Development Framework (SDF) includes the following validations for custom plug-ins:

The scriptid attribute is required for the plugintype and pluginimplementation elements. The scriptid attribute value must match the filename and exclude the file extension.
For plugintype objects, each method field must contain a unique value.
The class field is required for SuiteScript 1.0 custom plug–ins. The class field is not used for SuiteScript 2.x custom plug-ins. For information about SuiteScript versions, see SuiteScript Versioning Guidelines.
The SuiteScript version of a custom plug-in implementation must match the SuiteScript version of its plug-in type. For example, a SuiteScript 2.x custom plug-in type must only have SuiteScript 2.x custom plug-in implementations.
After the first time the custom plug-in implementation is deployed, its custom plug-in type cannot be changed.