Maple Shield — powered by CAIRN

Canadian Sovereign Edge AI Intelligence System

CAIRN is the internal detection engine behind Maple Shield. ARGUS is treated as the legacy project name; going forward, use CAIRN detection engine for the engine and Maple Shield for the product.

Quick Links

• CAIRN Engine v2: docs/CAIRN_ENGINE_V2.md
• Documentation: docs/README.md
• Changelog: CHANGELOG.md
• Architecture: docs/ARCHITECTURE.md

Current Status

Phase-1 Complete: CPU validation baseline
CAIRN Engine v2: Initial modular engine layer added
Active branch: feat/rebrand-to-maple-shield

What CAIRN adds

• Stable detection, risk, and frame schemas
• Configurable risk thresholds and weights
• Explainable risk factors, reasons, and operator actions
• JSON audit-ready frame records
• Adapters for existing Maple Shield MVP detections
• No-camera smoke demo for fast validation

Smoke Test

python cairn_demo.py

With explicit config:

python cairn_demo.py --config configs/cairn.default.json

See docs/CAIRN_ENGINE_V2.md for the next integration steps.