[support] CCK API to Add Field to Node Type

[Fred Jones]

I am googling but not finding docs on how a module could add/remove a
CCK field to/from a node type. I found this
http://api.audean.com/api/file/files/contributions/docs/developer/examples/nodeapi_example.module/API+Reference
but this seems to do it all "manually" and not via CCK. Perhaps I am
just missing it however...

Anyhow, can anyone share with me how to do this?

Thanks!