Vault Engine

What it does

Vault Engine transforms a standard markdown vault into a structured knowledge graph where a SQLite database acts as the source of truth. It renders the database state back into markdown files, ensuring a perfectly synchronized projection between structured data and human-readable notes.

Key features

• Hybrid Search: Combines FTS5 lexical search with 256-dim Nomic embeddings via reciprocal rank fusion.
• Schema Enforcement: Global field definitions with type-specific overrides and validation gates.
• Automated Extraction: Built-in extractors for Word, Excel, PowerPoint, and PDFs, with AI-powered vision fallback for scanned documents.
• Atomic Synchronization: Uses a hash-diff pipeline to ensure atomic writes and prevent unnecessary file churn.
• Undo System: Comprehensive capture of mutations allowing state restoration.

Installation

1. Clone the repository: git clone https://github.com/glibalien/vault-engine
2. Install dependencies: npm install
3. Build: npm run build
4. Set VAULT_PATH environment variable to your vault directory.

Supported hosts

Confirmed for Claude Desktop, Cursor, and others via HTTP/Stdio transports.