Closes: Part of#1428

MigratesGetLabel,ListLabels, andLabelWrite tools frommark3labs/mcp-go tomodelcontextprotocol/go-sdk.

Changes

• Tool definitions: Converted from DSL-basedmcp.NewTool() to struct-basedmcp.Tool{} with explicitjsonschema.Schema definitions
• Handler signatures: Updated fromfunc(context.Context, mcp.CallToolRequest) (*mcp.CallToolResult, error) to generic handlersfunc(context.Context, *mcp.CallToolRequest, map[string]any) (*mcp.CallToolResult, any, error)
• Parameter extraction: Changed fromRequiredParam[T](request, "param") toRequiredParam[T](args, "param") using passed args map
• Result constructors: Replacedmcp.NewToolResult* withutils.NewToolResult* helpers
• Toolsnaps: Updated to reflect property ordering changes (semantics unchanged)

Example

Before:

funcGetLabel(...) (mcp.Tool, server.ToolHandlerFunc) {returnmcp.NewTool("get_label",mcp.WithString("owner",mcp.Required(),...),...    ),func(ctx context.Context,request mcp.CallToolRequest) (*mcp.CallToolResult,error) {owner,err:=RequiredParam[string](request,"owner")...returnmcp.NewToolResultText(string(out)),nil    }}

After:

funcGetLabel(...) (mcp.Tool, mcp.ToolHandlerFor[map[string]any,any]) {tool:= mcp.Tool{Name:"get_label",InputSchema:&jsonschema.Schema{Properties:map[string]*jsonschema.Schema{"owner": {Type:"string",Description:"..."},...            },Required: []string{"owner","repo","name"},        },    }handler:= mcp.ToolHandlerFor[map[string]any,any](func(ctx context.Context,_*mcp.CallToolRequest,argsmap[string]any) (*mcp.CallToolResult,any,error) {owner,err:=RequiredParam[string](args,"owner")...returnutils.NewToolResultText(string(out)),nil,nil        })returntool,handler}

Custom agent used: go-sdk-tool-migrator
Agent specializing in migrating MCP tools from mark3labs/mcp-go to modelcontextprotocol/go-sdk

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