10 lines per character teaching 5 core mechanics diegetically:
movement/exploration, fog of perception, sound model, NPC interaction,
insert/HUD. Detective lines in analytical register, smuggler lines in
street-smart fragments. Fires on first-time events (first_move,
first_fog_encounter, first_sound_heard, first_npc_proximity,
first_insert_open, etc.). _tut_ ID discriminator, cooldown -1.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>