State Memory MCP

@putervision/state-memory-mcp

@putervision/state-memory-mcp is a zero-infrastructure, deterministic Model Context Protocol (MCP) server that provides AI coding assistants (such as Cursor, Claude Code, Gemini, or Copilot) with a structured, persistent SQLite graph for tracking workflow state—tasks, decisions, artifacts, plans, blockers, and their semantic relationships.

🌐 Official Documentation & Website: statememorymcp.com

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⚡ Quick Start & Installation

Prerequisites: Node.js >= 18.18.0

# 1. Install globally
npm install -g @putervision/state-memory-mcp

# 2. Navigate to your project directory
cd your-project

# 3. Initialize state-memory-mcp
# Creates .state-memory-mcp/, updates .gitignore, registers project,
# and scaffolds IDE instructions and MCP configs for Cursor, Claude, VS Code, Windsurf, etc.
state-memory-mcp init

# Done! Restart your IDE or Agent Manager to activate.

Alternative Options

# Run directly via binary (after global install)
state-memory-mcp run

# Re-initialize across all registered workspace projects
state-memory-mcp init-global

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🌟 Key Highlights

• 🧠 Deterministic State Memory: Zero LLM in the loop for memory operations; fast, deterministic SQLite graph traversals.
• ⚡ 82 Core MCP Tools: Full CRUD, relationship linking, DAG cycle checks, FTS5 search, TF-IDF RAG, time-travel history rollback, Spec-Driven Development, and auto-healing validation.
• 📉 Efficient Context Management: Offloads context to a local SQLite database, helping reduce prompt context bloat and context window usage.
• 🚀 67%–74% Latency Reduction: Eliminates multi-step file scanning loops; agents retrieve unblocked tasks and blockers in milliseconds.
• 🤝 Multi-Agent Blackboard: Shared Context Store allowing parallel subagents to publish decisions, tasks, and blocker updates safely.
• 🎨 Interactive 3D Visualizer: Browser-based dark-mode 3D WebGL force-directed graph visualizer (state-memory-mcp view).
• 🛡️ 100% Local & Private: Local-first architecture; all state stays inside .state-memory-mcp/ in your workspace.

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📚 Documentation Directory

Explore dedicated guides and deep dives in the docs/ directory:

Guide	Description
💡 Value Proposition & Theory	Cognitive Externalization, FSM Formalism, First-Hop Determinism & Benchmark metrics.
📋 State Memory Concepts	Node Types (task, decision, blocker...), Status Values, Typed Edges & Seeding Guidelines.
⚙️ Configuration & IDE Setup	Auto-Initialization details, Environment Variables table, and Editor Configs (Cursor, VS Code, Claude, Antigravity, Windsurf).
🛠️ CLI Command Reference	CLI flags (init, run, view, inspect, metrics, audit, doctor, backup, restore, merge) & Git Scanner.
⏱️ Sessions, Snapshots & SDD	Session Lifecycle, Event Audit Trail, Snapshots, Trajectories, Sub-directory support & Spec-Driven Development.
🧰 Tools, Resources & Prompts	Complete reference for all 82 MCP Tools, read-only state-memory:/// Resources, and Prompt templates.
📘 Formal API Reference	Formal parameters, return schemas, and code signatures for all MCP endpoints.
🎨 3D Visualizer Guide	Viewing and exporting the interactive WebGL 3D Force-Directed Graph visualizer.
🗄️ Database Schema	SQLite tables, columns, indexes, and schema migration history.

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🧪 Testing

# Run full unit, integration, and performance benchmark test suite
npm run test

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⚖️ License & Disclaimers

Developed and maintained by PuterVision LLC. Released under the MIT License.

• Local Storage Guarantee: All graph data, decision records, and event logs remain 100% local in your workspace. No telemetry or project data is ever transmitted.
• Trademarks & Non-Affiliation: Product names (Cursor, Claude Code, Gemini, Windsurf, VS Code, GitHub, SQLite) are property of their respective owners and used solely for compatibility identification.