The stone the operator/drift/occupation work stands on: express a relational
neighborhood as the compact joint geometry Will specified (design §3/§5, node
e94371bd) — semantic side (centroid, principal-axis ellipsoid via dual-PCA,
radius) braided with the relational side (k-core skeleton, hub->periphery
centrality gradient), plus soft membership and a co-registration diagnostic
(corr of hebb strength vs semantic proximity — >0 reifies, <0 flags dreams).
Built ONLY on the two standalone modules — engram_vindex (ANN, the cloud) and
engram_store (embeddings + hebb adjacency, the skeleton). Pure C11 + libm; does
not link or touch el_runtime.c. Strictly READ-ONLY: never mutates nodes, edges,
activation, the index, or any retrieval path. Not yet wired into retrieval —
foundation only.
Self-contained test (test_geometry.c) synthesizes two known embedding clusters
with intra-cluster hebb edges and verifies the descriptor recovers the shape:
centroid on the seeded cluster, hub = relational center, skeleton = the strong
intra-cluster wiring, positive co-registration, sorted axis extents. PERF +
ASan/UBSan passes both green; needs no live data.
will.anderson
2a4c5c645a