TOOLS

mcp_client.py

@@ -398,7 +398,7 @@ def fetch_url(url: str) -> str:
     if not url.startswith("http"):
         url = "https://" + url
 
-    req = urllib.request.Request(url, headers={'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)'})
+    req = urllib.request.Request(url, headers={'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36'})
     try:
         with urllib.request.urlopen(req, timeout=10) as resp:
             html = resp.read().decode('utf-8', errors='ignore')
@@ -406,6 +406,10 @@ def fetch_url(url: str) -> str:
         parser.feed(html)
         full_text = " ".join(parser.text)
         full_text = _re.sub(r'\s+', ' ', full_text)
+        
+        if not full_text.strip():
+            return f"FETCH OK: No readable text extracted from {url}. The page might be empty, JavaScript-heavy, or blocked."
+            
         # Limit to 40k chars to prevent context blowup
         if len(full_text) > 40000:
             return full_text[:40000] + "\n... (content truncated)"
@@ -417,7 +421,7 @@ def fetch_url(url: str) -> str:
 def get_ui_performance() -> str:
     """Returns current UI performance metrics (FPS, Frame Time, CPU, Input Lag)."""
     if perf_monitor_callback is None:
-        return "ERROR: Performance monitor callback not registered."
+        return "INFO: UI Performance monitor is not available (headless/CLI mode). This tool is only functional when the Manual Slop GUI is running."
     try:
         metrics = perf_monitor_callback()
         # Clean up the dict string for the AI