PSI: Shared State Architecture Proposes Missing Coherence Layer That Keeps AI-Generated Tools in Sync

arXiv·medium signal

Researchers introduce PSI (Personal Shared Instruments), a shared-state layer for personal AI agents that addresses the isolation problem: AI tools generated from natural-language requests work individually but break when they need to share context. PSI provides a reactive state store where multiple agent-generated instruments observe and update shared data, enabling coherent multi-tool workflows without explicit inter-tool communication. The architecture mirrors reactive state management patterns from frontend frameworks, applied to the agent tool coordination problem.