Why AI Agent Authentication Isn't Enough — The Case for AI Driven Contracts economy

* AI agent authentication has become a hot topic. * Many platforms are solving a real problem: how does an agent authenticate to the tools it needs to use? OAuth flows, token management, scoped permissions — all necessary when agents interact with Salesforce, Slack, or your internal APIs. But there's a different problem that none of these platforms address, and it's going to matter a lot more as agents start operating across organisational boundaries. The missing layer When your agent calls the Slack API, you need tool authentication. That's solved. When your procurement agent negotiates a contract with another company's sales agent, you need something else entirely. You need to know: is that agent actually authorised to represent that company? Can it commit to terms? And six months from now, when there's a dispute, can you prove what was agreed and by whom? Tool authentication answers "can this agent access this API?" Agent identity answers "who is this agent, and should I trust it?"