Cobo Proposes 'Contractual Authority + MPC' Framework: Building a Controllable Trust Layer for the Agent Economy

On April 21, Brad Bao, Head of AI Growth at Cobo, shared at the offline event themed ‘Decoding Web 4.0: When AI Agents Take Over On-Chain Authority’ that Cobo is restructuring the funding control logic of Agents through a structured authority system. In its products, the relationship between users and Agents is no longer a simple wallet authorization but is defined by an executable ‘contract (Policy/Agreement)’ that outlines the boundaries of authority. This contract includes at least four core elements: Intent, Path, Rules, and Termination conditions, thereby upgrading the original ‘all or nothing’ authority control to a negotiable, auditable, and revocable fine-grained governance mechanism. On the execution level, Cobo integrates MPC (Multi-Party Computation) technology to ensure that even if an Agent exhibits abnormal behavior, the system is attacked, or risks such as prompt injection occur, the funds remain under user control, and no single entity can bypass the constraints to independently transfer assets. Brad Bao emphasized that under this framework, Agents can gain sufficient freedom of action to complete complex tasks, but their behavior is always confined within verifiable boundaries. He stated that this system essentially builds a layer of ‘trust and insurance infrastructure’ within the Agent economy, achieving controllable delegation of Agent behavior through the combination of ‘contractual authority + secure computation,’ ultimately enhancing automation efficiency while ensuring user asset security and outcome certainty.