Living Document Notice Staged 2026-09-27. Living revisions and interconnected notes live in the Stax Digital Garden.

Zero-Egress Containment and Local Loopback Firewalls

Autonomous agent harnesses must eliminate external telemetry leakage. Running autonomous coding prompts inside environments with unfiltered internet access exposes proprietary schemas and uncommitted code.

Hardened Network Isolations

• Network Namespace Severing: Linux namespaces (unshare -n) and Windows Job Objects disabling outbound socket creation.
• Localhost Proxy Allowlisting: Strictly filtered loopback interfaces directing necessary token downloads through authenticated local caches.
• Audit-Logged Socket Drops: Dropped socket allocation requests immediately increment container telemetry burden metrics.

Sovereign code engines remain deterministic when external dependencies are pre-mirrored into local lockers.