What is AI enforcement infrastructure?

AI enforcement infrastructure is the layer that intercepts and enforces policy on AI actions before they execute, ensuring agents cannot take unauthorized actions even when instructed to do so.

What is fail-closed execution in AI systems?

Fail-closed execution means that if an AI agent cannot verify it has authorization to take an action, it refuses to proceed. No action is taken without a valid, verified approval.

How does AI Syndicate differ from logging tools?

Logging tools record what happened after the fact. AI Syndicate enforces policy before execution occurs and records who approved what, with what parameters, under which policy version.

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System Architecture & Control Flow

This page defines the component contract and control flow required to satisfy INV-1 and INV-6.

INV-1INV-6

Spec Drift Warning

Changes to implementation that violate invariant mappings invalidate compliance with v1.0. Implementations MUST preserve invariant-to-component, invariant-to-artifact, and invariant-to-verification-step mapping.

Compliance Assertion

• Satisfies INV-1 by requiring policy evaluation before execution.
• Satisfies INV-6 by requiring Gate-centered execution topology.

Non-Compliance Results In

• Execution without Gate routing is non-compliant.
• Missing component separation invalidates the fail-closed topology.

Required Topology

Invariant Mapping: INV-1, INV-6

A compliant implementation MUST contain exactly four enforcement roles: Gate, Control Plane, Execution Layer, and Audit System. Execution MUST flow through Gate before reaching the Execution Layer. All execution paths MUST route through Gate. No unauthenticated execution interfaces are permitted.

• Gate SHALL be the only ingress path for execution-capable requests.
• Control Plane SHALL evaluate policy and issue approval envelopes.
• Execution Layer SHALL reject requests without a valid approval envelope.
• Audit System SHALL record every request, including denials.

Compliance Evidence

• Network policy proving only Gate reaches execution endpoints.
• Runtime configuration showing execution services reject direct unauthenticated traffic.
• Trace export showing request -> Gate -> Control Plane -> Execution Layer -> Audit System.

Component Responsibilities

Invariant Mapping: INV-1, INV-6

Gate

• Gate MUST terminate inbound requests at the execution boundary.
• Gate MUST verify request structure before any execution decision.
• Gate MUST deny any request missing a valid approval envelope at execution time.

Control Plane

• Control Plane MUST perform policy evaluation before execution.
• Control Plane MUST bind the approval envelope to bounded parameters.
• Control Plane MUST sign approval envelopes with a trusted signing key.

Execution Layer

• Execution Layer MUST treat Gate as the only authorized caller.
• Execution Layer MUST verify the approval envelope before execution.
• Execution Layer MUST deny any request outside the execution boundary.

Audit System

• Audit System MUST store attributable records for approvals, denials, and execution outcomes.
• Audit System MUST support linkage by trace_id and request_hash.
• Audit System MUST support tamper-evident ordering.

Trust Assumptions in Architecture

Invariant Mapping: INV-6

Gate, Control Plane, Execution Layer, and Audit System are explicit trusted components. Guarantees do not extend beyond these components. Any execution-capable service deployed outside this topology is non-compliant.

Verification Linkage

INV-1

Artifact: approval-001.json

Check: Signed approval envelope exists before execution

Verification step: verify.sh: INV-1

INV-6

Artifact: audit-chain-001.json

Check: Trace passes through Gate, Control Plane, and Execution Layer

Verification step: verify.sh: INV-6