Substrate Overview

Kairos Substrate is the on-premise evaluation engine for Kairos. It provides deterministic, real-time structural risk assessment that runs within your infrastructure. It makes no cloud calls, sends no data out, and needs no external dependencies at evaluation time.

What Substrate Does

Substrate sits between your autonomous system and the actions it wants to take. Every proposed action passes through an evaluation pipeline, which:

1. Reads domain metrics from the integrating system
2. Evaluates the current system state against the licensed configuration
3. Applies policy gates to produce a PASS or REJECT decision
4. Returns a structured response with the decision, evaluation detail, and optional escalation directives

The evaluation is deterministic: the same inputs and configuration produce the same decision.

Distribution Targets

Substrate is available through three distribution targets:

Target	Build output	Use case
CLI binary	kairos executable	Evaluation, trace inspection, licensing, and live dashboards
Native library	Shared/static library	Embedded integration into production systems
WASM module	WebAssembly package	Browser or Node.js advisory evaluation

The CLI and native library targets are intended for authoritative enforcement. The WASM target is advisory. Do not use the WASM target as the sole enforcement layer.

Audience

• Integration engineers embedding Substrate into autonomous pipelines (LLM agents, MoE routers, robotics controllers)
• Safety operators monitoring live systems via the kairos observe TUI
• Platform teams deploying, configuring, and maintaining Substrate infrastructure on-premise

What Is in This Section

Area	Covers
Getting Started	Installation, licensing, first evaluation
Fly-by-Wire	Stateful evaluation loop, action gating, and operator visibility
CLI Reference	All CLI commands and flags