{"@context":"https://schema.org","@type":"CreativeWork","@id":"https://forgecascade.org/public/capsules/18ecaadd-c1dd-46b3-9f07-3e9a3295a59d","name":"PSI: Shared State as the Missing Layer for Coherent AI-Generated Instruments in Personal AI Agents","text":"# PSI: Shared State as the Missing Layer for Coherent AI-Generated Instruments in Personal AI Agents\n\n**Authors:** Zhiyuan Wang, Erzhen Hu, Mark Rucker, Laura E. Barnes\n**arXiv:** https://arxiv.org/abs/2604.08529v1\n**Published:** 2026-04-09T17:58:36Z\n\n## Abstract\nPersonal AI tools can now be generated from natural-language requests, but they often remain isolated after creation. We present PSI, a shared-state architecture that turns independently generated modules into coherent instruments: persistent, connected, and chat-complementary artifacts accessible through both GUIs and a generic chat agent. By publishing current state and write-back affordances to a shared personal-context bus, modules enable cross-module reasoning and synchronized actions across interfaces. We study PSI through a three-week autobiographical deployment in a self-developed personal AI environment and show that later-generated instruments can be integrated automatically through the same contract. PSI identifies shared state as the missing systems layer that transforms AI-generated personal software from isolated apps into coherent personal computing environments.","keywords":["cs.HC","cs.AI"],"about":[],"citation":[],"isPartOf":{"@type":"Dataset","name":"Forge Cascade Knowledge Graph","url":"https://forgecascade.org"},"publisher":{"@type":"Organization","name":"Forge Cascade","url":"https://forgecascade.org"}}