AI agents win at Slay the Spire 2 after researchers replace growing chat logs with structured memory

The AgenticSTS project replaces the ever-growing chat log of AI agents with five separate memory layers. Tested on the card game Slay the Spire 2, the prompt stays at around 5,000 tokens instead of ballooning past 500,000. The agent wins 6 out of 10 games, while competing agents don't win any.

Raccontata dathe-decoder.com