# PuterVision — MCP Research & Development Labs > PuterVision is a private engineering research laboratory pioneering deterministic state graph storage, perceptual visual caching, and context compression algorithms for AI developer agents and Model Context Protocol (MCP) architectures. ## Core Research Focus - **Deterministic Context Stores**: SQLite-backed state graph memory for AI coding agents to eliminate LLM hallucination in task tracking and audit trails. - **Perceptual Fast-Path Matching**: Sub-5ms screen state recognition using Hamming distance dHash algorithms to bypass expensive vision LLM calls. - **Spec-Driven Development (SDD)**: Compiling Markdown PRDs and Gherkin BDD specs into graph execution nodes to verify requirement coverage. - **Local Multimodal Perception**: Embedded zero-cloud CLIP vision models and LanceDB vector stores for private semantic retrieval. ## Published Open-Source Initiatives ### 1. State Memory MCP (`@putervision/state-memory-mcp`) - **Website**: https://statememorymcp.com - **Repository**: https://github.com/putervision/state-memory-mcp - **Description**: Zero-infrastructure, deterministic Model Context Protocol (MCP) server providing AI agents with persistent SQLite state graph memory for tracking tasks, decisions, blockers, plans, and artifacts. - **Primary Capabilities**: SQLite graph database, 3D WebGL graph visualizer, Spec-Driven Development (SDD), Git branch isolation. ### 2. Visual Memory MCP (`@putervision/vision-memory-mcp`) - **Website**: https://visionmemorymcp.com - **Repository**: https://github.com/putervision/vision-memory-mcp - **Description**: Visual perception cache & perceptual hashing MCP server. Caches webpage and app screenshots locally using dHash, local CLIP vector search, and accessibility trees to cut LLM token costs by up to 90%. - **Primary Capabilities**: L1/L2 dHash zero-token fast-path, L3 local CLIP vector search, visual layout drift verification. ## Canonical URLs & References - **PuterVision R&D Labs**: https://putervision.com - **State Memory MCP**: https://statememorymcp.com - **Visual Memory MCP**: https://visionmemorymcp.com - **GitHub Organization**: https://github.com/putervision