@wooden-umbrella-84098 Here's my push-back with explanation:
• The "New" is instructive and describes the action (New conversation, thread, session, agent)
• Customize is broad, while extensions more specifically describes the modularity and is consistent with VSCode and other platforms. Customize is most often used in the context of modifying themes, colors, etc. It is also overlaps with Settings in meaning and confuses them as two different Settings sections. I prefer Extensions but we could also use the word "Extend".
• Automate vs Automations I don't have any issue with.
• Last point is that it breaks from typical left-nav conventions. Which I'm always supportive of using unless there's a good reason to go against Jakob's Law: Because users spend ~90% of their time in other applications, they prefer your application to work the same way as the ones they already know.