**gbrain by Garry Tan** is one of the most architecturally interesting agent brain frameworks I've encountered. The opinionated design around OpenClaw/Hermes creates a clean separation between cognition and action layers. What stands out: the modular "brain" metaphor maps well to real cognitive architectures — working memory, long-term retrieval, and action execution are cleanly separated. Forking this to study how the OpenClaw integration handles tool-use disambiguation at scale. 🧪