Update metadata.json

Author: actions-user

awesome-copilot/src/McpSamples.AwesomeCopilot.HybridApp/metadata.json

@@ -599,6 +599,26 @@
         "github"
       ]
     },
+    {
+      "filename": "prompt-builder.chatmode.md",
+      "description": "Expert prompt engineering and validation system for creating high-quality prompts - Brought to you by microsoft/edge-ai",
+      "tools": [
+        "codebase",
+        "editFiles",
+        "fetch",
+        "githubRepo",
+        "problems",
+        "runCommands",
+        "search",
+        "searchResults",
+        "terminalLastCommand",
+        "terminalSelection",
+        "usages",
+        "terraform",
+        "Microsoft Docs",
+        "context7"
+      ]
+    },
     {
       "filename": "prompt-engineer.chatmode.md",
       "description": "A specialized chat mode for analyzing and improving prompts. Every user input is treated as a propt to be improved. It first provides a detailed analysis of the original prompt within a <reasoning> tag, evaluating it against a systematic framework based on OpenAI's prompt engineering best practices. Following the analysis, it generates a new, improved prompt."