Core engineering and protocols for Constitutional Policy Enforcement.
Logging malicious or erroneous actions after they occur is insufficient when autonomous systems control real-world assets. A2ATShield acts as an active gatekeeper: when an agent attempts to invoke a tool (e.g., executing a SQL DROP command or transferring money), the action is intercepted before the API request is dispatched.
The proposed action is evaluated against organizational policies expressed in declarative languages (such as Rego). If the action violates organizational risk parameters (e.g., attempting to access confidential salary data or exceeding daily budget allocations), A2ATShield blocks the tool call and returns a structured safety error back to the agent reasoning engine.