Claude Code ──► context-saver ──► Backend MCP Servers
                    │
                    ▼
                LanceDB
             (tool embeddings)

npm install -g context-saver

{
  "embedding": {
    "provider": "openai",
    "model": "text-embedding-3-small"
  },
  "discovery": {
    "liteMode": true
  },
  "backends": {
    "filesystem": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-filesystem", "/home/user"]
    }
  }
}

export OPENAI_API_KEY="sk-..."

{
  "mcpServers": {
    "context-saver": {
      "command": "npx",
      "args": ["context-saver"]
    }
  }
}

> discover_tools("update notion pages")

Found 3 relevant tools:

1. notion-update-page (notion)
   Update a Notion page's content
   Parameters: page_id*, content*
   Relevance: 94%

2. notion-fetch (notion)
   Fetch a Notion page by ID
   Parameters: page_id*
   Relevance: 87%
...

{
  "version": "1.0",

  "embedding": {
    "provider": "openai",
    "model": "text-embedding-3-small",
    "dimensions": 1536,
    "apiKey": "${OPENAI_API_KEY}"
  },

  "storage": {
    "path": "~/.context-saver/lancedb",
    "reindexOnStart": false
  },

  "discovery": {
    "defaultTopK": 5,
    "minSimilarity": 0.3,
    "liteMode": true
  },

  "backends": {
    "notion": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@anthropic/mcp-server-notion"],
      "env": {
        "NOTION_API_KEY": "${NOTION_API_KEY}"
      }
    },
    "google-drive": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@anthropic/mcp-server-google-drive"]
    }
  }
}

{
  "embedding": {
    "provider": "local",
    "model": "Xenova/all-MiniLM-L6-v2",
    "dimensions": 384
  }
}

{
  "type": "stdio",
  "command": "npx",
  "args": ["-y", "@modelcontextprotocol/server-filesystem", "/path"],
  "env": { "KEY": "value" }
}

{
  "type": "remote",
  "url": "https://mcp.example.com",
  "headers": { "Authorization": "Bearer ..." }
}

discover_tools({ query: "search google drive", limit: 5 })

list_all_tools()

tool_info({ tool_name: "notion-update-page" })

similar_tools({ tool_name: "read_file", limit: 5 })

tools_by_category({ category: "filesystem" })

server_stats()

{
  "discovery": {
    "liteMode": true
  }
}

git clone https://github.com/msuther898/context-saver.git
cd context-saver
npm install
npm run build
npm start

src/
├── index.ts              # Entry point
├── server.ts             # MCP server + handlers
├── client-pool.ts        # Backend connections
├── config/               # Config types + loader
├── discovery/
│   ├── indexer.ts        # Tool indexing with synonyms
│   └── search.ts         # Vector search + re-ranking
├── embeddings/
│   ├── index.ts          # Provider factory
│   ├── openai.ts         # OpenAI embeddings
│   ├── gemini.ts         # Google Gemini embeddings
│   ├── cohere.ts         # Cohere embeddings
│   ├── ollama.ts         # Ollama local embeddings
│   └── local.ts          # Transformers.js embeddings
└── storage/
    └── lancedb.ts        # LanceDB vector storage