Mirror Observerhood Lab II: Channel-Decomposed Reliability and the Limits of Reliability Tracking Alone

This release forms part of the Computational Observerhood Labs of Mirror Programme, Volume I: Observerhood. Lab II tests whether decomposing reliability into self-state, sensor-channel and world-map components is sufficient to improve viability under channel-specific perturbation. It follows Mirror Observerhood Lab I, which showed that scalar self-model reliability can help under false self-location but becomes brittle under generic sensor degradation. Across 5,760 deterministic grid-world episodes, four architectures are compared: a predictor-only agent, a self-model agent without reliability tracking, a scalar Mirror reliability agent and a decomposed Mirror reliability agent. The result is deliberately…