Editing Module:Parameter validation/doc (section)

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This module helps you find problematic usages of a template's parameters. Compared to [[Module:Check for unknown parameters]], you do not need to create long lists of parameters which should be categorised; it will automatically read them from the template's TemplateData. This means you don't need to define the parameter configuration in multiple places, which will inevitably lead to it being out of sync.

As well as that, it supports a few other types of errors, such as defining the same parameter multiple times, or using deprecated parameters (useful to do so you can replace usages before removing support for a parameter entirely).