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Modular governed AI infrastructure

Control AI before it acts. Prove what happened after.

PF Systems creates AI governance software — and governed AI-enabled software — deployable as standalone components or as a combined platform.

Explore PF OS See deployment options
Pre-execution controlCryptographic receiptsModel-agnostic

Modular control architecture

Authority / 01
PF
OS

PF OS

Runtime decision authority

AllowDenyModifyStep UpStop the Line
Assurance / 02

Proof Harness

Verifiable assurance

Evidence verified
Integration / 03

ClientBridge

Controlled integration

Boundary connected
Deploy across
01Enterprise software02AI agents03Robotics & drones04Edge systems05Financial infrastructure06National infrastructure
01

PF OS

Runtime decision authority

A modular governed control layer for AI, software and autonomous systems.

Discover PF OS
02

Proof Harness

Verifiable assurance

A fail-closed route for collecting, signing and independently checking evidence.

Discover Proof Harness
03

ClientBridge

Controlled integration

Connects governed contracts to existing software without inheriting decision authority.

Discover ClientBridge

Control people can understand

Not a policy document.
A working control layer.

Most AI governance describes what should happen. PF Systems is built to control what can happen — then leave a signed, inspectable trail.

Think of it as a control room and an evidence system for software, AI agents and machine actors.

01Before action

Understand

Identify the actor, intended action, context, policy and the exact meaning of the request.

02At runtime

Decide

PF Kernel returns a bounded outcome: Allow, Deny, Modify, Step Up or Stop the Line.

03After decision

Prove

PF Core creates a tamper-evident record. Proof Harness checks whether the evidence stands up.

The governed operating system

Memory knows.
Core proves.
Kernel decides.

PF OS is a triad of independently deployable components. Use the authority, evidence or knowledge layer on its own — or combine all three as one governed control platform.

Explore deployment modes
K / 01

Decides

PF Kernel

The policy and decision authority. It evaluates the intended action before execution and returns one of five bounded outcomes.

  • Pre-execution and runtime control
  • Human or agent step-up routes
  • Fail-closed policy decisions
C / 02

Proves

PF Core

The evidence, receipt and lineage layer. It records what was requested, what was decided and how the decision can be traced.

  • Cryptographically bound receipts
  • Tamper-evident evidence chains
  • Replayable decision lineage
M / 03

Knows

PF Memory

The governed knowledge-lifecycle layer. It supplies policy-bound context without becoming the action or decision authority.

  • Governed context and recall
  • Knowledge lineage and lifecycle
  • Standalone or triad deployment

Proof Harness

Assurance that can travel.

A claim is not proof. Proof Harness packages the evidence needed to test a governed system on another machine, under another reviewer, with integrity checks that fail closed.

Evidence discipline

PF Systems distinguishes local, synthetic and independently reproduced evidence. Qualification status is stated, never implied.

01

Package integrityZIP, SHA-256 sidecar and trusted Ed25519 signature.

02

Binding checksRun-kit, subject, manifest, identity and isolation are verified.

03

Schema enforcementSubmitted evidence must match bounded evidence contracts.

04

Raw recomputationAssessment values are recalculated rather than trusted from summaries.

Verification routeCOLLECT → SIGN → RETURN → VERIFY → RECOMPUTEFAIL CLOSED

ClientBridge

Integrate control.
Do not leak authority.

ClientBridge connects existing software, data, models and workflows to PF OS contracts. It translates and transports integration state; it does not make, override or inherit PF Kernel decisions.

  • 01Connect without replacing the client estate
  • 02Preserve the PF Kernel authority boundary
  • 03Support receipt, trace and replay joins
  • 04Remain model-, agent- and platform-agnostic

Modular by design

One control architecture.
Many ways to deploy.

Start with one component. Combine the layers you need. Connect the full platform to an existing estate. The architecture adapts without blurring who has authority.

01

Standalone

Deploy PF Kernel, PF Core, PF Memory or the Proof Harness independently.

02

Combined

Use selected PF modules together around a defined risk, workflow or machine actor.

03

Full platform

Deploy the PF OS triad with ClientBridge and an independent assurance route.

04

Embedded control

Place the appropriate decision and evidence components near the system being governed.

Deployment environmentExample governed actionPossible configuration
01

Enterprise software & workflows

Govern approvals, record changes, data access and automated business actions.

PF OS modules · ClientBridge
02

AI agents

Control tool use, delegation, sensitive retrieval and high-impact agent actions.

PF OS · Proof Harness · ClientBridge
03

Robotics & drones

Apply bounded mission, task and actuator decisions at the appropriate control point.

Edge PF Kernel/Core · Domain assurance
04

Edge & autonomous systems

Make policy-bound decisions where connectivity, latency and fail-closed behaviour matter.

Standalone or combined PF OS
05

Financial infrastructure

Govern transactions, orders, approvals and movement of sensitive financial data.

PF Kernel/Core · ClientBridge
06

National infrastructure

Create accountable control boundaries between operators, models and machine actors.

Combined platform · Independent proof

Illustrative deployment patterns. Live deployments remain subject to integration, safety, security, regulatory and domain-specific assurance.

Governed AI-enabled software

We do not only govern AI.
We build AI differently.

Governance products are one half of PF Systems. We also create AI-enabled applications where authority, evidence, memory and escalation are part of the runtime architecture from the start.

01

Governed intelligence

Intelligence and situational-awareness platforms with policy, provenance and evidence built into the operating model.

02

Governed AI assistants

Agents, presenters and operational assistants that can answer, act, escalate or refuse inside explicit boundaries.

03

Governed autonomy

AI-enabled software for edge, robotic and autonomous environments where runtime authority must remain clear.

Why PF Systems

Control that survives contact with the real world.

01

Architecture, not aspiration

Governance operates in the decision path, not in a policy document beside it.

02

Evidence, not screenshots

Signed receipts, lineage and replay make decisions inspectable after the event.

03

Modularity, not lock-in

Components can operate independently, together or alongside existing systems.

04

Boundaries, not ambiguity

Kernel decides. Core proves. Memory knows. ClientBridge connects.

Start with a bounded deployment

Find the first action worth governing.

A PF Systems briefing maps one real AI, software or autonomous action to its authority boundary, evidence requirement and safest route to a shadow deployment.

Deployment briefing / 45 minutes
  • Identify the high-consequence action
  • Map decision, evidence and integration boundaries
  • Choose standalone, combined or full-platform scope
  • Define a non-actuating shadow proof
Request a governed AI briefing

Or email us directly at contact@pfsystems.ai.