Deterministic governance infrastructure

Structural controls for high-stakes AI.

Structural Design Labs designs pre-inference controls, signed evidence flows, and verification surfaces for systems that need more than prompt-level safety language.

Core surfaces

Short path from control to evidence

The site is organized around the control layer, the evidence it emits, and the test surfaces used to inspect it.

SIR

Pre-inference governance gate

A deterministic gate in front of inference. Requests are evaluated before the model is called.

Read the SIR page

Proof

Signed audit artefacts

Audit records, hashes, and supporting artefacts can be checked outside the system that produced them.

Open proof surfaces

Benchmarks

Pair-based evidence runs

Benchmark publishing is used to inspect enforcement behavior and auditability, not to rank model intelligence.

Review benchmark runs

What SDL does

Engineering for bounded governance claims

Deterministic control placement

SDL focuses on placing rules-only control points before inference rather than relying on post-hoc moderation or advisory prompts.

Evidence that travels

The goal is not just to block or pass a request. The goal is to emit evidence that can be archived, compared, and independently reviewed.

Use in high-stakes settings

The work is aimed at environments where deterministic controls and signed records matter for governance, assurance, and underwriting conversations.

Latest audit

Current signed surface

This view pulls the latest published audit artefact and presents a small readable summary.

latest-audit.json

Loading latest signed audit...