diff --git a/.gemini/settings.json b/.gemini/settings.json
index afd7f27..e505627 100644
--- a/.gemini/settings.json
+++ b/.gemini/settings.json
@@ -7,7 +7,7 @@
       "*"
     ],
     "discoveryCommand": "powershell.exe -NoProfile -Command \"Get-Content .gemini/tools.json -Raw\"",
-    "callCommand": "python scripts/tool_call.py"
+    "callCommand": "scripts\\tool_call.exe"
   },
   "hooks": {
     "BeforeTool": [
diff --git a/.gemini/tools.json b/.gemini/tools.json
index ec68e20..0a1b709 100644
Binary files a/.gemini/tools.json and b/.gemini/tools.json differ
diff --git a/get_file_summary.bat b/get_file_summary.bat
new file mode 100644
index 0000000..d27226f
--- /dev/null
+++ b/get_file_summary.bat
@@ -0,0 +1,2 @@
+@echo off
+uv run python scripts/tool_call.py get_file_summary
diff --git a/mcp_client.py b/mcp_client.py
index 6ae74ad..c42356c 100644
--- a/mcp_client.py
+++ b/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
diff --git a/scripts/tool_call.bat b/scripts/tool_call.bat
new file mode 100644
index 0000000..6b3c46f
--- /dev/null
+++ b/scripts/tool_call.bat
@@ -0,0 +1,2 @@
+@echo off
+uv run python "%~dp0tool_call.py" %*
diff --git a/scripts/tool_call.cmd b/scripts/tool_call.cmd
new file mode 100644
index 0000000..734cc8e
--- /dev/null
+++ b/scripts/tool_call.cmd
@@ -0,0 +1,2 @@
+@echo off
+uv run python scripts\tool_call.py %*
diff --git a/scripts/tool_call.cpp b/scripts/tool_call.cpp
new file mode 100644
index 0000000..36c1d02
--- /dev/null
+++ b/scripts/tool_call.cpp
@@ -0,0 +1,56 @@
+#include <iostream>
+#include <string>
+#include <vector>
+#include <windows.h>
+#include <process.h>
+
+int main(int argc, char* argv[]) {
+    if (argc < 2) {
+        std::cerr << "No tool name provided" << std::endl;
+        return 1;
+    }
+
+    std::string tool_name = argv[1];
+    
+    // Construct the command: uv run python scripts/tool_call.py <tool_name>
+    std::string command = "uv run python scripts/tool_call.py " + tool_name;
+
+    // Use CreateProcess to run the command and handle pipes
+    STARTUPINFOA si;
+    PROCESS_INFORMATION pi;
+    ZeroMemory(&si, sizeof(si));
+    si.cb = sizeof(si);
+    si.dwFlags = STARTF_USESTDHANDLES;
+    si.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
+    si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
+    si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
+    ZeroMemory(&pi, sizeof(pi));
+
+    // Create the process
+    if (!CreateProcessA(
+        NULL, 
+        (char*)command.c_str(), 
+        NULL, 
+        NULL, 
+        TRUE, 
+        0, 
+        NULL, 
+        NULL, 
+        &si, 
+        &pi
+    )) {
+        std::cerr << "CreateProcess failed (" << GetLastError() << ")" << std::endl;
+        return 1;
+    }
+
+    // Wait for the process to finish
+    WaitForSingleObject(pi.hProcess, INFINITE);
+
+    DWORD exit_code;
+    GetExitCodeProcess(pi.hProcess, &exit_code);
+
+    CloseHandle(pi.hProcess);
+    CloseHandle(pi.hThread);
+
+    return exit_code;
+}
diff --git a/scripts/tool_call.exe b/scripts/tool_call.exe
new file mode 100644
index 0000000..c5cbbcb
Binary files /dev/null and b/scripts/tool_call.exe differ
diff --git a/scripts/tool_call.ps1 b/scripts/tool_call.ps1
new file mode 100644
index 0000000..77d464a
--- /dev/null
+++ b/scripts/tool_call.ps1
@@ -0,0 +1,3 @@
+$toolName = $args[0]
+$inputData = $input | Out-String
+$inputData | uv run python "$PSScriptRoot/tool_call.py" $toolName
diff --git a/scripts/tool_call.py b/scripts/tool_call.py
index 6f155bd..5263131 100644
--- a/scripts/tool_call.py
+++ b/scripts/tool_call.py
@@ -1,6 +1,11 @@
 import sys
 import json
 import os
+import io
+
+# Force UTF-8 for stdout/stderr to avoid encoding issues on Windows
+sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
+sys.stderr = io.TextIOWrapper(sys.stderr.buffer, encoding='utf-8')
 
 # Add project root to sys.path
 sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
diff --git a/scripts/tool_discovery.py b/scripts/tool_discovery.py
index 188d183..1d3c09f 100644
--- a/scripts/tool_discovery.py
+++ b/scripts/tool_discovery.py
@@ -37,6 +37,11 @@ def main():
         }
     })
     
+    # Rename 'parameters' to 'parametersJsonSchema' for Gemini CLI
+    for spec in specs:
+        if "parameters" in spec:
+            spec["parametersJsonSchema"] = spec.pop("parameters")
+    
     # Output as JSON array of FunctionDeclarations
     print(json.dumps(specs, indent=2))