Can I collaborate with my team and run design reviews?

Yes — and collaboration is never seat-gated:

• Team roles on the hierarchy — add teammates to any node as owner, editor, or viewer; access inherits down the tree, so adding someone to a subsystem covers everything under it.
• Formal design reviews on every artifact — submit for review, assigned reviewers comment with severity tags (critical / major / minor / editorial), the owner dispositions each comment (accept / reject / defer / note) with a full audit trail, and approval can baseline the document.
• Reviewers ride free — teammates on any plan, including Free, can review, comment, and view work shared with them.
• Strict change control after baseline — once a document is baselined, changes go through a working copy with a colored diff and a tracked merge, for humans and the AI agent alike.