Hasechen's Scenario Library

Standalone ES5 script that auto-selects a plot from a tag in the Initial Message. It reads the earliest assistant greeting from context.chat.last_messages, extracts hasechen1..10 (e.g., #hasechen1), caches the match, and appends the corresponding one-shot block to Scenario exactly once (no duplicates). Message depth must be >/= to 3. Always lowercase inside the script. Any case in the Initial Message works fine.