feat(tools): rename get_random_words tool and improve error handling

tools/getRandomWords.ts

@@ -5,30 +5,30 @@ import { getRandomWords } from "@/services/randomWord"
 
 export const addRandomWordsTool = (server: McpServer) => {
   server.registerTool(
-    "get_random_words",
+    "get_random_words_from_dict",
     {
-      title: "Get Random Words",
+      title: "Get Random Word From Dictionary",
       description: "Get a list of random words from a dictionary.",
       inputSchema: z.object({
-        dictionary: z.string(),
+        dictionary_name: z.string(),
         count: z.number().optional().default(1)
       })
     },
     async (input) => {
       try {
-        const words: string[] = (await readDictionary(input.dictionary)).split("\n")
+        const words: string[] = (await readDictionary(input.dictionary_name)).split("\n")
 
         return { content: [{ type: "text", text: getRandomWords(words, input.count).join("\n") }] }
       } catch (error) {
         if (error instanceof Error) {
           return {
             isError: true,
-            content: []
+            content: [{ type: "text", text: `Error reading dictionary: ${error.message}` }]
           }
         }
         return {
           isError: true,
-          content: []
+          content: [{ type: "text", text: "Unknown error reading dictionary" }]
         }
       }
     }