Chamber Specification
Invariant: F(H) = (λ_low ≤ λ_max(A(H)) ≤ λ_high) — boolean spectral band on adjacency matrix
Falsifier: Utility realized outside spectral band (λ_max ∉ [λ_low, λ_high])
Expected Signature: Brittle spectral window (B_u) — micro-edits annihilate utility
Coupling Rule: τ admissible iff F.feasible == true (irreversible collapse)
Utility: Shared EMA threshold (k=8 consecutive steps above U_crit)
Spectral Operator: Adjacency matrix A(H) — directed, unweighted