Client.KeyPrefix is put before the keys the client writes and reads in its own State; empty for every asker today, so today's keys stay; Where still reads the router's record under <module>.<id>. Builds: design 46 milestone 7 §10, §22 (design 47 G, approval mark) Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ