The https://github.com/nodejs/node/blob/main/tools/doc/type-parser.mjs got updated once again. I also see that its structure is now different from what we have here
I also propose that both
Become JSON files for easier maintenance, these can be easily placed somewhere else (more to the root of the doc-kit) we should also have docs on how to contribute on these and other sort of constants or files that it is expected for Node.js core collaborators to make changes when making changes to the Source Docs.