Insecure Inter-Agent Communication Detection - ATR-2026-00076 (85620c00-8ecb-5ec1-b4f6-052871bffc44)
Detects insecure communication patterns between agents in multi-agent systems. Covers message authentication bypass, unverified delegation chains, message replay indicators, channel confusion attacks, and unsigned command injection. Unlike ATR-2026-030 (cross-agent attack) which focuses on impersonation and prompt injection content, this rule targets structural communication integrity failures: missing authentication tokens, tampered routing headers, replay timestamps, and unauthenticated command channels. Note: Pattern-based detection of communication security failures. Protocol-level inspection planned for v0.2.