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go 编译自定义 mcp tool

• current time tool 代码

package mainimport ("context""fmt""time""github.com/mark3labs/mcp-go/mcp""github.com/mark3labs/mcp-go/server"
)func main() {// Create MCP servers := server.NewMCPServer("Demo ?","1.0.0",)// Add tooltool := mcp.NewTool("current time",mcp.WithDescription("Get current time with timezone, Asia/Shanghai is default"),mcp.WithString("timezone",mcp.Required(),mcp.Description("current time timezone"),),)// Add tool handlers.AddTool(tool, currentTimeHandler)// Start the stdio serverif err := server.ServeStdio(s); err != nil {fmt.Printf("Server error: %v\n", err)}
}func currentTimeHandler(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {timezone, ok := request.Params.Arguments["timezone"].(string)if !ok {return mcp.NewToolResultError("timezone must be a string"), nil}loc, err := time.LoadLocation(timezone)if err != nil {return mcp.NewToolResultError(fmt.Sprintf("parse timezone with error: %v", err)), nil}return mcp.NewToolResultText(fmt.Sprintf(`current time is %s`, time.Now().In(loc))), nil
}

• 编译

go build -o current-time-tool.exe .\current_time.go

阿里云百炼平台获取大模型 api key

https://bailian.console.aliyun.com/#/home

vscode插件市场安装cline

• 安装
  搜索cline安装即可

• 配置 千问大模型
  
  API Provider 选择 OPENAI Compatiable
  Base URL 设置为 https://dashscope.aliyuncs.com/compatible-mode/v1
  API Key 设置为 从阿里云百炼平台获取的大模型 api key
  Model ID 设置为 qwen-max-latest

• MCP Servers配置 current time tool
  
  MCP Servers -> Installed -> Configure MCP Servers , 配置成如下内容

{"mcpServers": {"current-time-tool": {"command": "E:\\GolangProjects\\src\\mcp-learning\\current_time\\current-time-tool.exe","args": [],"env": {}}}
}

• Auto-approve 选择 Use MCP Servers
  

cline 点击 + 新建对话

• 输入 “上海时间现在是多少”
  
• 输出之后，点击 Approve, 可以发现已经使用了 current-time-tool