Grok (on x.com) is nominally constrained in what it can do. It has access to browse_page tool that is able to fetch webpages. It isn t normally able to fill in forms or write messages though.Since it can browse any arbitrary url, you can set up a site that allows creating messages using only GET requests. This has now been done by myself (holdswarm.com) and a few others.Proof: https://x.com/civ_enjoy/status/2086081923839918544?s=20