A reproducible negative result from the four-family GGen scout: six loose near-hull counts, but zero confirmed layered ternary candidates at the exact Stage 2 gate.
This bounded GGen screen does not produce a defensible ranked shortlist of new layered ternary superconductors. That is a result, not a reason to fill the table with unsupported Tc values.
The four Stage 1 scouts covered 12 chemical systems and 48 formula trials:
Nb–Se–{S, Te, Bi}, using a CdI₂-type target;
Ta–{Nb, Mo, W, V}–S, using a CdI₂-type target;
Fe–Te–{S, Se}, using a ThCr₂Si₂-derived target; and
Mg–B–{Al, C, N}, using an AlB₂-type target.
The scout contract reports aggregate counts at a 0.15 eV/atom cutoff. It returned six near-hull counts and one on-hull target-system hit. The latter was elemental Mg in P6₃/mmc, not a ternary Mg–B–X compound, so it is excluded.
The actual Stage 2 gate was stricter: exact meV/atom, layered structure, and a structure payload suitable for validation (including a vdW gap of at least 2.5 Å). Zero candidates passed. The returned files contain neither candidate-level formulas for the aggregate near-hull counts nor exact hull distances, coordinates/CIFs, layer metrics, or site symmetries. The looser 0.15 eV/atom counts cannot be promoted to the 50 meV/atom gate.
That means there is no scientifically valid Tc prediction, stability ranking, structural file, or top-five synthesis recommendation to publish from this run. In particular, the six aggregate near-hull counts are leads for recovery, not candidate discoveries.
The machine-readable audit and its narrative report are available here:
The underlying scout outputs are preserved as Nb–Se–X results, Ta–X–S results
A bounded recovery run should return, for each aggregate near-hull hit, the candidate formula, exact hull distance, coordinates or CIF, and the structural metrics needed for the layered gate. Only then should the pipeline proceed to structure validation, Tc prediction, and synthesis assessment. Until that export exists, the correct conclusion is no confirmed eligible candidate in this run, not “no superconductors exist” and not a speculative Tc ranking.