⚠ PREVIEW — not yet linked publicly. Founder review build.
THE FRONTIER HARNESS

The harness the industry
did not build yet.

"The model cannot be made safe. Safety must become a property of the harness it runs inside." The INTEGRITAS thesis · CryptoShield AI BV · Amsterdam
Out-of-context enforcement  ·  ✓ Consequence-tiered  ·  ✓ Quantum-safe
▶ Watch it stop a hijacked agent — live

Why this exists

The industry's own leaders say prompt injection of the model is a frontier, unsolved problem — and may never be fully solved. We agree. So we stopped trying to make the model immune, and made a fooled model unable to do harm. The rest of the market still treats the model as the security boundary. We moved the boundary off the model entirely — into a harness the attacker cannot reach from inside the conversation.

Where INTEGRITAS sits

INTEGRITAS is the enforcement layer beneath every agent harness — including the ones HARNESS-OS builds. Three layers, three distinct jobs.

SENTINEL-OS

The rules

Defines what an agent is allowed to do — the constitution every agent answers to.

HARNESS-OS

The harness

Builds, validates and keeps intact the harness wrapped around each individual agent.

⬡ INTEGRITAS

The action

Governs what the agent actually does — out-of-context, so a fooled agent still cannot act outside its signed, consequence-tiered plan.

The model? It is assumed compromised — that is the entire point. We never trust the brain; we govern the action.

Twelve capabilities · five layers

Every capability is built and enforcing today. All 12 · Live

PSE
Plan Signing Engine
● Live
IRM
Independent Reference Monitor
● Live
CTC
Consequence-Tiered Containment
● Live
IFC
Information-Flow / Taint Control
● Live
HOE
Hard Operational Envelope
● Live
TAC
Tamper-Evident Action Chain
● Live
DRV
Dissimilar Redundancy + Voting
● Live
TPA
Split-Key Two-Person Authority
● Live
KLE
Kernel-Level Enforcement
● Live
DRE
Deterministic Replay Engine
● Live
CoTIM
Chain-of-Thought Integrity Monitor
● Live
QSPV
Quantum-Safe Plan Vault
● Live

Out-of-context enforcement — five layers, all must pass

Every agent action flows down the stack. Any layer can halt it. None of them can be reached, argued with, or rewritten from inside the model's conversation.

Layer 5 — Evidence & ComplianceHash-chained action receipts · deterministic replay · quantum-safe plan vault · agent content credentials · regulator-ready evidence on demand.
Layer 4 — Quantum Identity & AttestationPost-quantum agent birth certificates · cryptographic agent passports · hardware attestation · split-key custody.
Layer 3 — Consequence Tiering & Dissimilar VotingEvery action classified by worst-case harm · architecturally dissimilar voting for the highest tier · hard spend / rate / blast-radius envelopes.
Layer 2 — Plan Signing · Reference Monitor · TaintA signed, capability-bound action graph · an out-of-context monitor on every tool, memory and credential · information-flow labels untrusted data cannot cross.
Layer 1 — Kernel-Level EnforcementThe unconditional base. The agent cannot lie about what it actually did.
kernel check → reference-monitor gate → taint check → signed-plan verification → consequence-tier evaluation → evidence chain — all must pass, or the action halts.

The harness the industry did not build yet. Now we build it.

Twelve capabilities. Five layers. The market treats the model as the wall. We made the wall the harness.

Book a briefing → See the full INTEGRITAS platform