Yes, strongly agreed. Without guidance from you about what constitutes a derived work, private entities will be left with the most extreme interpretation: any

Yes, strongly agreed. Without guidance from you about what constitutes a derived work, private entities will be left with the most extreme interpretation: anything that touches the program in any way is a derived work. If you select the AGPL, I strongly recommend doing what RethinkDB has done: be very, very explicit. From their FAQ[1]: We chose to release the client drivers under the Apache License v2.0 to remove any ambiguity as to the extent of the server license. You do not have to license any software that uses RethinkDB under AGPL, and are free to use any licensing mechanism of your choice. Absent this, expansive (and frankly, deranged) notions of a what constitutes a derived work will prevent AGPL-licensed software from going places that its authors likely did not want to prevent. [1] http://rethinkdb.com/faq/#how-is-rethinkdb-licensed http://rethinkdb.com/faq/#how-is-rethinkdb-licensed