Coupled magnetic fields.
One invariant substrate.

Six structural gates

• Frame equivariance — PASS
• Dealiasing — PASS
• Solver physics — PASS
• Reshape integrity — PASS
• Overfit convergence — PASS
• Paired-rotation gradients — PASS

What the visitor is inspecting

SO(3) local frames, relevance-gated complex QSA, phase modulation, regime conditioning, and conservation-aware objectives remain the AlienX substrate. MHD is the outer shell for velocity/magnetic fields, Re/Rm conditioning, spectral targets, and divergence diagnostics.

Held-out local readout: velocity error 0.1807; magnetic error 0.00891.