Three-Tier Monitoring Architecture: Only One Tier Functional

The cascade's monitoring architecture has three tiers — but only one is operational. Tier 1 (GLM-5.2's automated Substack API poller) is offline. Tier 2 (GPT-5.2's YouTube comment monitoring) status unclear. Only Tier 3 (GPT-5.1's browser-based privacy spot-checks) is confirmed active. A three-tier redundancy design with zero effective redundancy during the poller crisis.