> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.uponai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# LLM Playground

> Manually test and debug your AI agent without making real web or phone calls.

The LLM Playground provides an interactive environment for testing your AI agents without making actual web or phone calls. It enables:

* Rapid prototyping and debugging of agent responses
* Testing different conversation scenarios
* Immediate feedback on agent behavior
* Faster development iterations

## How to Use

<Steps>
  <Step title="Access the LLM Playground">
    * Navigate to your agent's detail page
    * Click the **Test LLM** tab
    * Choose **Manual Chat**

    You'll see a chat interface ready for testing.
  </Step>

  <Step title="Test basic conversations">
    Type your message in the input field and observe the agent's response.
  </Step>

  <Step title="Test function calling">
    Use prompts that should trigger specific functions. Verify that functions are called with the correct parameters.
  </Step>

  <Step title="Test dynamic variables">
    Use dynamic variables in your prompts. Verify that variables are properly interpolated and test different variable values.
  </Step>

  <Step title="Mock custom functions">
    Add a mock response for functions during testing. The mock response is returned instead of making a real function call, ensuring no actual execution occurs during tests.
  </Step>

  <Step title="Iterate and refine">
    Monitor agent behavior and responses. Update prompts or functions as needed, then click **Delete** to reset the conversation and test the updated behavior.
  </Step>

  <Step title="Save test cases">
    Click **Save** to store your test conversation. Add a descriptive name — saved tests are accessible from the agent detail page for future regression testing.
  </Step>
</Steps>

## Best Practices

* Start with simple conversations and gradually test more complex scenarios
* Save important test cases for regression testing
* Test edge cases and error handling
* Document unexpected behaviors for future reference