Kroger MCP Server

Instructions

    Get information about the current authentication state and token.
    
    Returns:
        Dictionary containing authentication information
    

Implementation Reference

• src/kroger_mcp/tools/profile_tools.py:101-151 (handler)

  The main execution logic for the 'get_authentication_info' tool. This async function retrieves the authenticated Kroger client, extracts token information (type, expiration, scope, previews without full tokens for security), token file path, and returns a structured dictionary with authentication status.

  @mcp.tool()
  async def get_authentication_info(ctx: Context = None) -> Dict[str, Any]:
      """
      Get information about the current authentication state and token.
      
      Returns:
          Dictionary containing authentication information
      """
      if ctx:
          await ctx.info("Getting authentication information")
      
      try:
          client = get_authenticated_client()
          
          result = {
              "success": True,
              "authenticated": True,
              "message": "User is authenticated"
          }
          
          # Get token information if available
          if hasattr(client.client, 'token_info') and client.client.token_info:
              token_info = client.client.token_info
              
              result.update({
                  "token_type": token_info.get("token_type", "Unknown"),
                  "has_refresh_token": "refresh_token" in token_info,
                  "expires_in": token_info.get("expires_in"),
                  "scope": token_info.get("scope", "Unknown")
              })
              
              # Don't expose the actual tokens for security
              result["access_token_preview"] = f"{token_info.get('access_token', '')[:10]}..." if token_info.get('access_token') else "N/A"
              
              if "refresh_token" in token_info:
                  result["refresh_token_preview"] = f"{token_info['refresh_token'][:10]}..."
          
          # Get token file information if available
          if hasattr(client.client, 'token_file') and client.client.token_file:
              result["token_file"] = client.client.token_file
          
          return result
          
      except Exception as e:
          if ctx:
              await ctx.error(f"Error getting authentication info: {str(e)}")
          return {
              "success": False,
              "error": str(e),
              "authenticated": False
          }

• src/kroger_mcp/server.py:76-76 (registration)

  Invocation of profile_tools.register_tools(mcp) in the server creation function, which defines and registers the get_authentication_info tool (along with other profile tools) by applying the @mcp.tool() decorator.

  profile_tools.register_tools(mcp)

• src/kroger_mcp/server.py:27-27 (registration)

  Import of the profile_tools module containing the get_authentication_info tool definition and registration logic.

  from .tools import profile_tools