What you getOne agent, written down.
A behaviour policy for one agent in one deployment: every capability it can reach, what you authorised it to do, the gap between the two, and what actually stands in the way of each row. Three of those you can write down; the gap is computed, and it is usually the one nobody has looked at.
AGENTS.mdMANDATE.mdGRANT.mdDELTA.mdLICENCE-TO-OPERATE.md
It is a draft on purpose. It goes to the people who built the agent, the people who own what it touches and the people accountable for it, and each corrects the part they know. The correction is the product.