{"source":"https://api.gridrock.ai/mcp","tool":"find_twins","scope":"mh36","archetype":"twins","cell":{"admin_code":490,"cluster_id":4900002997},"envelope":{"ok":true,"tool":"find_twins","generation":{"namespace":"bs:cube:0852c73eef54","schema_fingerprint_ns":"0852c73eef54"},"result":{"twin_keys":["490:4900003809","490:4900003117","490:4900002382","490:4900003137","490:4900004222","490:4900002535","490:4900002675","490:4900003665","490:4900001773","490:4900002976","490:4900003516","490:4900002548","490:4900002377","490:4900004083","490:4900002079","490:4900003116","490:4900002534","490:4900002228","490:4900002977","490:4900002380","490:4900001371","490:4900002676","490:4900001771","490:4900004351","490:4900001921"],"twin_admin_codes":[490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490],"twin_sims":[0.4122048709914278,0.37494675980795944,0.36542081207451743,0.3624488598290795,0.3538175214405237,0.31872433396151,0.27138607295661804,0.2643366228816734,0.258334422271953,0.252858460484338,0.24608437049694112,0.236606035656813,0.22078663726809789,0.199091302849714,0.18936043344316109,0.1767222813936601,0.15413573078260018,0.15376613747973977,0.1497672038778464,0.13843674494315916,0.13713715544637142,0.13462122253342593,0.13441103200576923,0.12711638014718313,0.12008567899241249],"twin_dists":[0.1729072653462961,0.18191435912380235,0.18428504939866283,0.18503098294458378,0.18721523117708894,0.19640086202279328,0.20975536662330294,0.21186123026773954,0.21368204228621585,0.21536662889929076,0.2174830275112274,0.22050827843994433,0.2257395299889403,0.2333401643159024,0.23693485247411528,0.2418021474211044,0.2511600461936133,0.25132122197511797,0.25308356887926586,0.2582734207055925,0.2588886717064696,0.26009227894077463,0.2601935941223937,0.26378606513529324,0.2673995403577225],"n_dims_used":45,"mean_confidence":0.9190388997395833},"coverage":{"mean_confidence":0.9190388997395833,"n_dims_used":45,"similarity_metric":{"field":"twin_sims","kind":"cosine_in_zscored_morphology_space","range":"[-1, 1]; higher = more similar","interpretation":"cosine similarity in the z-scored feature space (n_dims_used dims). High-dimensional cosine concentrates near 0, so absolute values are typically SMALL and are meaningful only RELATIVELY (rank order / vs the cohort) — NOT a 0–1 probability. mean_confidence is the SEPARATE GUM uncertainty weight of the anchor's witnessed features, not a function of the similarities."}},"error":null}}