fixes

Author: ezynda3

www/docs/pages/servers/advanced.mdx

@@ -15,6 +15,7 @@ import (
     "context"
     "encoding/json"
     "fmt"
+    "time"
 
     "github.com/mark3labs/mcp-go/mcp"
     "github.com/mark3labs/mcp-go/server"
@@ -136,6 +137,13 @@ func handleCreateUser(ctx context.Context, req mcp.CallToolRequest, input UserCr
 ### Custom Validation
 
 ```go
+import (
+    "path/filepath"
+    "strings"
+
+    "github.com/go-playground/validator/v10"
+)
+
 type FileOperationInput struct {
     Path      string `json:"path" validate:"required,filepath"`
     Operation string `json:"operation" validate:"required,oneof=read write delete"`

www/docs/pages/servers/prompts.mdx

@@ -28,6 +28,14 @@ prompt := mcp.NewPrompt("code_review",
 ### Basic Code Review Prompt
 
 ```go
+import (
+    "context"
+    "fmt"
+
+    "github.com/mark3labs/mcp-go/mcp"
+    "github.com/mark3labs/mcp-go/server"
+)
+
 func main() {
     s := server.NewMCPServer("Code Assistant", "1.0.0",
         server.WithPromptCapabilities(true),

www/docs/pages/transports/stdio.mdx

@@ -78,17 +78,24 @@ func main() {
 }
 
 func handleListFiles(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
-    path := req.Params.Arguments["path"].(string)
-    recursive := req.Params.Arguments["recursive"].(bool)
+    path, err := req.RequireString("path")
+    if err != nil {
+        return mcp.NewToolResultError(err.Error()), nil
+    }
+    
+    recursive, err := req.RequireBool("recursive")
+    if err != nil {
+        return mcp.NewToolResultError(err.Error()), nil
+    }
 
     // Security: validate path
     if !isValidPath(path) {
-        return nil, fmt.Errorf("invalid path: %s", path)
+        return mcp.NewToolResultError(fmt.Sprintf("invalid path: %s", path)), nil
     }
 
     files, err := listFiles(path, recursive)
     if err != nil {
-        return nil, fmt.Errorf("failed to list files: %w", err)
+        return mcp.NewToolResultError(fmt.Sprintf("failed to list files: %v", err)), nil
     }
 
     return mcp.NewToolResultJSON(map[string]interface{}{