Conversation so far:
Who were Jean-Philippe Rameau's librettists?
Musicologists can only guess at the dates of Jean-Philippe Rameau's six surviving cantatas, and the names of the librettists are unknown.
What did the librettists do with Jean-Philippe Rameau?
How long was Louis de Cahusac with Jean-Philippe Rameau?
Louis de Cahusac collaborated with Jean-Philippe Rameau on several operas, including Les fêtes de l'Hymen et de l'Amour, Zaïs, Naïs, Zoroastre, La naissance d'Osiris, and Anacréon.
Were there any other notable librettists with Jean-Philippe Rameau besides Louis de Cahusac?

Question: What else did he do with them?
Self-contained rewrite: What else did Jean-Philippe Rameau do with librettists?