What each MCP index says about one listing of this catalog.

A signal belongs to a listing only when it is the SAME object: the name in the official MCP registry, the exact remote endpoint URL or the GitHub owner/repo, in that order. A shared domain never matches — two servers on one host are different products. Up to 20 signals, one per index and record. Returns: { ok, listing, count, sinais[{fonte,credito,mede,kind,nome,descricao,url,repo,estado,estado_na_fonte,motivo,acesso,detalhe,ficha_na_fonte,no_catalogo,medido_em,visto_em}], _links }