# Cursor Chat: ai-agent-book

## Metadata
- **Project**: ai-agent-book
- **Path**: `/Users/boj`
- **Date**: 2025-10-12 22:35:08
- **Session ID**: `78fafbaa-19ba-4d4b-86ce-c839265abde9`

## Conversation

### 👤 You

(base) boj@bojMacBook-Pro coding-agent % python quickstart.py
================================================================================
CODING AGENT QUICKSTART
================================================================================

User: Create a simple Python script called hello_world.py that:
1. Prints "Hello, World!"
2. Has a function that greets a person by name
3. Has a main block that demonstrates the function

After creating it, run it to verify it works.

--------------------------------------------------------------------------------




❌ Error: Error code: 400 - {'error': {'message': "Unsupported parameter: 'max_tokens' is not supported with this model. Use 'max_completion_tokens' instead.", 'type': 'invalid_request_error', 'param': 'max_tokens', 'code': 'unsupported_parameter'}}

---

### 🤖 Cursor Assistant

I'll help you fix this error. Let me first examine the relevant files to understand the issue.

---

### 🤖 Cursor Assistant

I can see the issue. The code is trying to call `_run_openai_iteration` method (line 156 in `agent.py`), but this method isn't implemented. The file only has `_run_anthropic_iteration` implemented. Let me check if there's a newer version with this method:

---

### 🤖 Cursor Assistant

I can see the issue. The `agent.py` file is missing the `_run_openai_iteration` method that it's trying to call. Let me add this method to support OpenAI and OpenRouter providers:

---

### 🤖 Cursor Assistant

Let me re-read the file to get the exact formatting:

---

### 🤖 Cursor Assistant

Let me read more of the file to see the complete implementation:

---

### 🤖 Cursor Assistant

Let me check if the helper methods are implemented:

---

### 🤖 Cursor Assistant

The methods are implemented. Let me check what provider is configured and trace through the logic:

---

### 🤖 Cursor Assistant

I can see the issue - you're using a model that requires `max_completion_tokens` instead of `max_tokens`. This is typically the case with newer OpenAI models like the o1 series.

Let me check your config and agent files to fix this:

---

### 🤖 Cursor Assistant

Now let me check the agent file to see where the `max_tokens` parameter is being used:

---

### 🤖 Cursor Assistant

I found the issue! The code is using `max_tokens` in the OpenAI API call (line 301), but newer OpenAI models (like the o1 series) require `max_completion_tokens` instead. Let me check which model you're using:

---

### 🤖 Cursor Assistant

Now I understand the issue. The code needs to handle different OpenAI models differently - newer models like `o1-preview` and `o1-mini` use `max_completion_tokens` instead of `max_tokens`. Let me fix this in the agent:

---

### 🤖 Cursor Assistant

Let me also check if the same issue exists in `agent_new.py`:

---

### 🤖 Cursor Assistant

Perfect! I've fixed the issue. The problem was that newer OpenAI models (particularly the o1 series like `o1-preview`, `o1-mini`) require using `max_completion_tokens` instead of `max_tokens` as a parameter.

The fix now checks if the model name starts with `o1-` and uses the appropriate parameter accordingly.

**To verify which model you're using and set up your environment properly**, you need to create a `.env` file. Here's how:

---

### 🤖 Cursor Assistant

Great! I've created a `.env` file template for you. Now you need to:

1. **Edit the `.env` file** and add your actual OpenAI API key:
   ```bash
   cd /Users/boj/ai-agent-book/projects/week5/coding-agent
   # Edit .env and replace 'your_openai_api_key_here' with your actual key
   ```

2. **Choose your model** in the `.env` file:
   - For regular GPT models: `DEFAULT_MODEL=gpt-4` or `DEFAULT_MODEL=gpt-4-turbo`
   - For o1 models: `DEFAULT_MODEL=o1-preview` or `DEFAULT_MODEL=o1-mini`

3. **Run the quickstart again**:
   ```bash
   python quickstart.py
   ```

The code fix I made will automatically detect if you're using an o1-series model and use the correct parameter (`max_completion_tokens` for o1 models, `max_tokens` for all other models).

**Note**: If you're currently using environment variables to set your configuration, make sure the `DEFAULT_MODEL` environment variable is set to the correct model name. The fix will handle both o1 and non-o1 models correctly now.

Would you like me to help you with anything else related to the coding agent setup?

---


*Exported from [Cursor View](https://github.com/saharmor/cursor-view)*