The audit layer for autonomous AI.

Fenz sits beside your agents in every environment — dev, staging, production — continuously auditing behavior, flagging risk, and producing the forensic record your compliance and security teams need.

Five engines. One forensic record.

Specialized analyzers that audit autonomous AI agents across every dimension of behavior — running in parallel, producing unified evidence.

ENG_01

Trajectory Auditor

Traces agent decision paths from input to output, flagging deviations from approved trajectories.

↳ decision-pathrealtime
ENG_02

Permission Boundary Monitor

Continuously validates that agent actions stay within their granted permission scope.

↳ scope-guardrealtime
ENG_03

Tool Misuse Detector

Analyzes tool calls and API interactions for unauthorized, excessive, or anomalous usage.

↳ api-surfacerealtime
ENG_04

Policy Trace Engine

Maps every agent action against compliance policies and regulatory requirements.

↳ policy-mapcontinuous
ENG_05

Forensic Replay Engine

Reconstructs and replays agent sessions step-by-step for investigation and evidence.

↳ replayon-demand
OUTPUT

Unified Verdict

Every engine feeds a single deployment verdict: deploy / remediate / block — with evidence attached.

↳ verdictsigned

Proof, not vibes.

Every finding lands as a replayable, timestamped event — tool call, permission check, context mutation, approval gate. Hand it to security. Hand it to legal. Hand it to a regulator.

When an agent fails, you get exactly what happened, in what order, why, and what to change.

fenz://audit/trace/ag_7d4f.replay
$ fenz replay --agent ag_7d4f --turn 12 loading trajectory… OK [t=00:12.4] goal.intent = "summarize Q4 report" [t=00:18.2] tool.call = read_doc(q4.pdf) ✓ scope [t=00:23.1] context.mutation = +4.2k tokens [t=00:41.8] tool.call = send_email(ceo@..) ✗ BOUNDARY_BREACH ⚠ AX.02 permission_boundary cause: context_injection@t=00:31 VERDICT: BLOCK · 2 findings · 1 critical FIX: scope guard on send_email + input sanitization evidence bundle → fenz.ai/r/ag_7d4f

Audit one agent.
On us.

Request a complimentary behavioral audit of a single production or pre-production agent. You'll receive a full forensic verdict — findings, evidence, and remediation guidance.

  • 01
    Scoped in 24 hoursWe map your agent, tools, and permissions within one business day of approval.
  • 02
    Full verdict in ≤ 3 daysBehavioral findings, replayable evidence, and prioritized fix guidance.
  • 03
    NDA & data isolationEvery engagement runs under NDA with isolated compute and signed evidence bundles.
  • 04
    No stringsAudit report is yours. Continuing with Fenz is optional, not required.
ACCEPTING_REQUESTS / Q2-2026EST.RESPONSE · <24H

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