# "tools/list" input:
mcpServer("tools/list")
# sending out payload before smart packed by msghandler
Dict(
  "method"=> "tools/list"
)
# expected return after smart unpacked by msghandler
Dict("tools" => [
  Dict("toolName" => "getWeather",
    "title" => "Weather Lookup",
    "description" => "Fetch current weather for a city.",
    "inputSchema" => Dict("type"=>"object",
                          "properties" => Dict("city"=>Dict("type"=>"string", "description"=>"City name"),
                                              "units"=>Dict("type"=>"string", "enum"=>["celsius","fahrenheit"], "default"=>"celsius")),
                          "required" => ["city"])
  )
])

# "tools/call" input:
mcpServer("tools/call", "getWeather", Dict("city"=>"Tokyo", "units"=>"celsius"))
# sending out payload before smart packed by msghandler
Dict(
  "method"=> "tools/call",
  "tools"=> Dict("toolName"=>"getWeather", "arguments"=>Dict("city"=>"Tokyo", "units"=>"celsius"))
)
# expected return after smart unpacked by msghandler
Dict(
  "toolName"=>"getWeather",
  "content": [{"type": "text", "text": "Weather in Tokyo: Sunny, 22°C"}],
  "isError": false
)

# If an error occurs, mcpServer returns after smart unpacked by msghandler:
Dict(
  "toolName"=>"getWeather",
  "content": [],
  "error": Dict("code"=>1, "message"=>"City not found"),
  "isError": true
)