Soar is a general cognitive architecture [https://soar.eecs.umich.edu/]. It has a comprehensive Tcl interface, and makes use of Tcl and Tk quite a lot. It's quite a fascinating project. Check the website for more details. Allen Newell's book "Unified Theories of Cognition" describes an earlier version of Soar and its goals. What: SOAR Where: https://soar.eecs.umich.edu/ https://github.com/SoarGroup Description: Soar is used by AI researchers to construct integrated intelligent agents, and by cognitive scientists for cognitive modelling. Recent versions of Soar use Tcl/Tk to do scripting and user interfaces. Soar is available on a variety of platforms. See news:comp.ai for discussions on SOAR. See ERS for a commercial product based on SOAR. Updated: 2020-10 Contact: https://soar.eecs.umich.edu/SoarSupport/MailingLists <> AI