diff --git a/tools/standalone_llm_tool.py b/tools/standalone_llm_tool.py
index 92ecf11..3c13291 100644
--- a/tools/standalone_llm_tool.py
+++ b/tools/standalone_llm_tool.py
@@ -3,6 +3,8 @@ import os
 import json
 import logging
 from openai import OpenAI
+import urllib.request
+import urllib.error
 
 class StandaloneLLMTool(BaseTool):
     def __init__(self):
@@ -15,7 +17,7 @@ class StandaloneLLMTool(BaseTool):
         return [
             {
                 "type": "function",
-                    "function": {
+                "function": {
                     "name": "call_external_llm",
                     "description": "Call an external language model",
                     "parameters": {
@@ -29,34 +31,121 @@ class StandaloneLLMTool(BaseTool):
                                 "type": "string",
                                 "description": "The model to use for generating the detailed instructions. Use mini for most coding tasks, preview when needing sophisticated reasoning",
                                 "enum": ["mini", "max"],
-                                "default": "o1-mini"
+                                "default": "mini" # Set default to 'mini' as per spec
                             },
                             "max_tokens": {
                                 "type": "integer",
                                 "description": "The maximum number of tokens to use for generating the detailed instructions. Default is 16384.",
+                                "default": 16384
                             }
                         },
                         "required": ["prompt"]
                     }
                 },
                 "_tags": ["llm", "external"]
+            },
+            {
+                "type": "function",
+                "function": {
+                    "name": "call_external_copilot",
+                    "description": "Calls a separate AI copilot instance over HTTP to get a response.",
+                    "parameters": {
+                        "type": "object",
+                        "properties": {
+                            "prompt": {
+                                "type": "string",
+                                "description": "The plain text prompt to send to the external copilot."
+                            },
+                            "url": {
+                                "type": "string",
+                                "description": "The URL of the external copilot's API endpoint (e.g., 'http://localhost:8000/copilot')."
+                            }
+                        },
+                        "required": ["prompt", "url"]
+                    }
+                },
+                "_tags": ["copilot", "external", "http"]
             }
         ]
 
+    def _call_external_copilot(self, prompt: str, url: str):
+        logging.info(f"Calling external copilot at URL: {url} with prompt: {prompt[:50]}...")
+        if not url.startswith('http://') and not url.startswith('https://'):
+            error_message = f"Invalid URL scheme for external copilot: {url}. URL must start with http:// or https://"
+            logging.error(error_message)
+            return error_message
+        try:
+            req = urllib.request.Request(
+                url,
+                data=prompt.encode('utf-8'),
+                headers={'Content-Type': 'text/plain; charset=utf-8', 'User-Agent': 'DualAICopilot/0.1'},
+                method='POST'
+            )
+            with urllib.request.urlopen(req, timeout=60) as response:
+                if response.status == 200:
+                    response_data = response.read().decode('utf-8')
+                    logging.info(f"Received response from external copilot: {response_data[:100]}...")
+                    return response_data
+                else:
+                    error_message = f"External copilot at {url} returned an error: {response.status} {response.reason}"
+                    logging.error(error_message)
+                    return error_message # Return error as string
+        except urllib.error.HTTPError as e:
+            error_body = ""
+            try:
+                error_body = e.read().decode('utf-8', 'replace') # Added error decoding fallback
+            except Exception:
+                pass 
+            error_message = f"HTTP Error {e.code} calling external copilot at {url}: {e.reason}. Response: {error_body}"
+            logging.error(error_message)
+            return error_message
+        except urllib.error.URLError as e:
+            error_message = f"URL Error calling external copilot at {url}: {e.reason}"
+            logging.error(error_message)
+            return error_message
+        except Exception as e:
+            error_message = f"An unexpected error occurred while calling external copilot at {url}: {str(e)}"
+            logging.error(error_message)
+            return error_message
+
     def execute(self, function_name, **kwargs):
         if function_name == "call_external_llm":
-            return self.call_external_llm(kwargs.get("prompt"), kwargs.get("model"), kwargs.get("max_tokens"))
+            model = kwargs.get("model", "mini") # Default from spec
+            max_tokens = kwargs.get("max_tokens", 16384) # Default from spec
+            return self.call_external_llm(kwargs.get("prompt"), model, max_tokens)
+        elif function_name == "call_external_copilot":
+            return self._call_external_copilot(kwargs.get("prompt"), kwargs.get("url"))
         else:
             error_message = f"Unknown function: {function_name}"
             logging.error(error_message)
+            return error_message
 
-    def call_external_llm(self, prompt, model="o1-mini", max_tokens=16384):
-        logging.info(f"Calling external model: {model}")
-        response = self.client.completions.create(
-            model=model,
-            prompt=prompt,
-            max_tokens=max_tokens
-        )
-        token_amount = response.summary["total_tokens"]
-        logging.info("Response generated, {token_amount} tokens used.")
-        return response.choices[0].text
\ No newline at end of file
+    def call_external_llm(self, prompt, model="mini", max_tokens=16384):
+        logging.info(f"Calling external LLM model: {model} with max_tokens: {max_tokens}")
+        try:
+            actual_model_name = model
+            if model == "mini":
+                 actual_model_name = "o1-mini" 
+            # Add mapping for "max" if its name for OpenAI API is different
+            # elif model == "max":
+            #    actual_model_name = "some-other-openai-model-name"
+
+            response = self.client.completions.create(
+                model=actual_model_name,
+                prompt=prompt,
+                max_tokens=max_tokens
+            )
+            
+            tokens_used = "unknown" # Default if token info isn't where expected
+            if hasattr(response, 'summary') and isinstance(response.summary, dict) and "total_tokens" in response.summary:
+                tokens_used = response.summary["total_tokens"]
+            elif hasattr(response, 'usage') and hasattr(response.usage, 'total_tokens'):
+                 tokens_used = response.usage.total_tokens
+
+            logging.info(f"LLM response generated, {tokens_used} tokens used.")
+            return response.choices[0].text
+
+        except Exception as e:
+            error_message = f"Error calling external LLM: {str(e)}"
+            logging.error(error_message)
+            return error_message # Return error as string