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Security and Governance Framework: MCP Platform

1. Architectural Philosophy​

The platform is built upon a secure-by-design foundation, prioritizing the principle of least privilege (PoLP) and granular governance. Rather than treating security as a perimeter defense, it is integrated into the core logic of every service and agent interaction, ensuring a hardened environment for automated operations.

2. Authentication and Identity Control​

Access to the Model Context Protocol (MCP) Server is restricted to authenticated identities managed through Keycloak. This centralized identity provider ensures that every request is tied to a verified user or service account.

To prevent unauthorized lateral movement within the network, the architecture utilizes an AgentGateway for secondary validation. Access requires not only valid credentials but also explicit membership in an "approved audience." This dual-layer approach ensures that only identities specifically configured for the MCP environment can interact with the server, effectively isolating the platform from unauthorized organizational entities.

3. Kubernetes Cluster Governance​

The MCP server operates under a strict set of Kubernetes-level policies designed to enforce operational safety. To mitigate the risk of destructive actions, the server is explicitly denied delete permissions within the cluster.

Its capabilities are restricted to non-destructive operations, such as create, list, and get. This structural constraint acts as a technical safeguard, preventing both human error and autonomous agents from performing unauthorized destructive changes to the infrastructure. By limiting the server’s scope to constructive actions, the platform maintains a high degree of stability and resilience.

4. Role-Based Access Control (RBAC)​

A robust Role-Based Access Control (RBAC) model is enforced at the MCP server level, mapping logical agent roles to technical permissions. Every service and agent operates strictly within its assigned scope, ensuring that no component possesses more authority than its function requires.

These policies are designed to be transparent and auditable. Because the RBAC model integrates directly with native Kubernetes cluster policies, it reinforces a clear separation of responsibilities. This unified permission structure allows for the controlled evolution of access rights, ensuring they remain aligned with organizational security standards as the platform scales.

5. Observability and Forensic Auditing​

The final pillar of the governance framework is an end-to-end observability stack powered by OpenTelemetry. This system provides deep technical auditing by tracing the entire lifecycle of a request—from the initial gateway entry to the final execution in the cluster.

This high-fidelity telemetry allows for the continuous monitoring of agent behavior and the detection of anomalous patterns. By maintaining a comprehensive forensic trail of all service interactions, the platform ensures total accountability and provides security teams with the data necessary for proactive threat mitigation and compliance reporting.