MCP

MCP (Model Context Protocol)

LingXiao connects to external systems through the unified mcp tool entry, supporting three capability types: tools, resources, and prompts.

Unified Entry

All MCP operations are performed through the mcp tool:

Action	Description
`list_servers`	List installed MCP servers
`list_tools`	List server-exposed tools
`call_tool`	Call a server tool
`list_resources`	List server resources
`read_resource`	Read a server resource
`list_prompts`	List server prompts
`get_prompt`	Get a server prompt
`list_resource_templates`	List resource templates
`capability_snapshot`	View server capability snapshot

MCP Server Configuration

MCP servers are configured via settings.mcp.servers:

stdio Servers

{
  "mcp": {
    "servers": {
      "filesystem": {
        "command": "npx",
        "args": ["-y", "@modelcontextprotocol/server-filesystem", "/path/to/dir"],
        "env": {}
      }
    }
  }
}

Remote HTTP Servers

{
  "mcp": {
    "servers": {
      "remote-api": {
        "url": "https://example.com/mcp",
        "transport": "streamable-http"
      }
    }
  }
}

Adding via Slash Commands

# Add remote HTTP server
/mcp add-remote my-server https://example.com/mcp "My Server"

# Add stdio server
/mcp add-stdio my-server npx -y @modelcontextprotocol/server-filesystem /tmp

MCP Share supports importing/exporting MCP server configurations via share links and .mcpb bundles.

Generates portable share links containing the server’s complete configuration (sensitive info sanitized).

.mcpb Bundles

.mcpb is a portable packaging format for MCP servers, containing:

Server code or configuration
Dependency declarations
Metadata

Plugin-Contributed MCP

When a plugin is enabled, its contributed MCP servers sync to settings.mcp.servers, accessible through the same mcp tool entry.

Runtime Relationship

MCP tools registered to ToolRegistry can be called by Agents at runtime
MCP resources are read via read_resource
MCP prompts are obtained via get_prompt
All MCP operation artifacts, URIs, and validation results are written to work notes

MCP