Agentic Sentinels Matrix
If this concern is breached, how do we know?
Filter
Layers, by what they can actually enforce
- In-agent (forensic only) — forensic
Transcript and tool-call logs from the agent runtime. Forensic value, not real-time. Lethal-trifecta detector at the wrapper layer is the only L1 with detection value.
- Client-side hooks — deterministic-when-shipped
auditd, eBPF, hook decision logs, MCP allowlist violation logs. Tamper-evident only if logs ship to a remote sink owned by the operator, not the agent.
- Server-side enforcement — external-and-authoritative
Kubernetes audit logs, CloudTrail, Falco, Hubble, Kyverno PolicyReports, GitHub webhooks. External to the agent's compromise model.
Showing 5 of 15.
Identity at Client-side hooks
PreToolUse hook emits structured identity events; auditd watches agent process startup; Vector/Fluent Bit ships to SIEM.
Authorization at Client-side hooks
Hook decision events (allow/ask/deny/error); auditd watches hook config edits and --no-verify; SIEM rule for multi-deny patterns.
Blast radius at Client-side hooks
bpftrace or Falco userspace catches unsandboxed children, sandbox EPERM events, unexpected network attempts; correlates by session ID.
Approval gating at Client-side hooks
Approval-timing analysis surfaces alert-fatigue (response under 2s across more than 50 approvals); typed-confirmation mismatch events; out-of-band channel decisions joined to session.
Supply chain at Client-side hooks
MCP allowlist violation events; tool-description hash mismatch alerting; lockfile diff in CI logs centralized; pre-commit dependency scan results.