Grimlock: Guarding High-Agency Systems with eBPF and Attested Channels

Grimlock is a security framework that uses eBPF and TLS 1.3 channel binding to enforce authorization and delegation controls in agentic AI systems without modifying application code. The system intercepts sandbox communications, validates identity through post-handshake attestation, and issues short-lived scope tokens to enable secure multi-cloud orchestration with transparent auditability.

Grimlock addresses a critical infrastructure challenge emerging as agentic AI systems become more complex and distributed. Traditional approaches embed security logic directly into orchestration code, creating enforcement inconsistencies and audit blind spots. By moving trust enforcement into the sandbox substrate layer, Grimlock decouples security concerns from application logic, enabling developers to build higher-level abstractions without sacrificing control.

This work reflects a broader maturation in distributed systems security where the industry recognizes that substrate-level controls outperform application-level security patches. As AI agents increasingly delegate tasks across heterogeneous cloud environments, establishing cryptographically verified identity chains and least-privilege delegation becomes non-negotiable. Grimlock's use of standard Linux primitives (eBPF, kTLS) and commodity TLS infrastructure makes the approach practical for immediate deployment rather than requiring specialized hardware or protocol changes.

For enterprises deploying multi-agent systems, this framework significantly reduces security implementation burden and audit complexity. Organizations can enforce consistent authorization policies across all agent-to-agent communication without rewriting orchestration code. The channel-binding mechanism prevents token theft even if intermediate systems are compromised, addressing a common failure mode in distributed delegation scenarios.

The implications extend to regulated industries where audit trails and provenance verification are compliance requirements. By making authorization decisions transparent and cryptographically bound to communication channels, Grimlock enables organizations to demonstrate policy compliance to auditors. Future iterations may incorporate hardware-based attestation for additional assurance in zero-trust environments.

• →Grimlock uses eBPF traffic interception and TLS 1.3 channel binding to enforce authorization without modifying agent orchestration code
• →Post-handshake attestation and short-lived scope tokens implement least-privilege delegation across multi-cloud environments
• →The framework leverages commodity Linux primitives, enabling practical deployment without specialized infrastructure changes
• →Transparent, auditable communication channels address compliance requirements for regulated industries using agentic systems
• →Substrate-level security enforcement prevents authorization inconsistencies that plague application-layer implementations