Most mods need some additional changes in order to be published not just on PC but on consoles as well (using mod.io)
The mod validator tool was created in order to make the life of modders easier. This tool gives modders a quick overview of the status of a mod regarding most of the required changes for consoles and is able to show you some of the most common mistakes and flag them right away for faster fixing.
Please note that the mod validator tool is still being developed and not in a final state.
For more information regarding console modding check out the wiki subpage.
The easiest way to use the tool is by dragging and dropping your mod folder onto the executable file. This will automatically initiate the validation checks for your mod.
Alternatively, you can run the tool manually via the command line. To do this, follow these steps:
./TF2_ModValidator_Public.exe <path_to_mod_folder>
Replace <path_to_mod_folder> with the actual path to your mod folder.
Version 0.11.0 of the mod validator tool can be downloaded here - Please note that the mod validator tool is still being developed and not in a final state