Standardizing a .proto file

[Rex C]

I am on a project where we are looking to create a standard .proto file that can be used by multiple vendors to create interoperable implementations of an open, standard interface that we are developing. The .proto file would be specified in the standard, along with pointers to the Google Protocol Buffers Developers site. It would be up to the vendors implementing this standard interface to compile the .proto file using their preferred source language. Is this an OK thing to do?