There is any tool which prevent me to binding 2 function to te same key?

The title self self explanatory, so there is any tool or addon which prevent me to binding 2 action to the same key? Like with a pop u message or something saying " Are you sure? ´X` tool using this" so at least i know what other tool is on the same key and I can remap it as well. It would be really nice to have this feature.