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

# Co-Builder

> The assistant panel inside the app builder, formerly the Builder Assistant. Ask questions about the app you have open and get context-aware suggestions for its instructions.

> [!NOTE]
>
> Playlab has two assistants. **Co-Builder**, on this page, lives inside the app builder and
> helps you with the single app you have open. The
> [**Playlab Assistant**](https://learn.playlab.ai/features/Playlab%20Assistant) is its own environment, at the top of the left
> sidebar — it works across all of your apps, can build new ones, and can run simulated student
> conversations against them.

Co-Builder helps you build and improve the app you have open. Whether you need help drafting instructions, troubleshooting behavior, or generating content, it works alongside you in the builder.

> [!NOTE]
>
> **Enhance Development Experience**
>
> Co-Builder can help you accelerate development, solve problems, generate content, and learn new concepts through guided explanations.

## Watch How to Use Co-Builder

Watch a short clip of how to interact with Co-Builder in your Playlab app.

[https://www.loom.com/embed/e6fcb0dde4ef4c53a4f535a7da5d15fa?sid=d8ab38f9-0790-4bdb-9ec9-7ccd995e9939](https://www.loom.com/embed/e6fcb0dde4ef4c53a4f535a7da5d15fa?sid=d8ab38f9-0790-4bdb-9ec9-7ccd995e9939)

Using Co-Builder (recorded before the rename, so it still shows the old Assistant label)

## Accessing and Using Co-Builder

**1. Open Your Playlab App**

**Start in your space.**

1. Navigate to your Playlab space
2. Open the app you want to work on

**2. Open Co-Builder**

**Locate and open the Co-Builder panel.**

1. Click **Co-Builder** in the toolbar on the right side of the builder

![The Co-Builder button in the builder toolbar](https://mintcdn.com/playlabai/jGgFmGWCXiL6PphG/images/assistanticon.jpeg?fit=max\&auto=format\&n=jGgFmGWCXiL6PphG\&q=85\&s=f9d195489d2565ca0a883c5506c96bbb)

2. The Co-Builder panel will open on the right side of your screen

![The Co-Builder panel open next to the app's instructions](https://mintcdn.com/playlabai/jGgFmGWCXiL6PphG/images/assistant.jpeg?fit=max\&auto=format\&n=jGgFmGWCXiL6PphG\&q=85\&s=a4464e3977c687e6f1123ab382f5ef74)

**3. Interact with Co-Builder**

**Begin your conversation.**

1. Type your question or request in the input field at the bottom of the panel
2. Review Co-Builder's response
3. Apply any relevant changes to your existing builder instructions
4. Continue to test and iterate to improve your Playlab app

## Tips for Getting the Best Results

When working with Co-Builder, keep these tips in mind:

* **Be specific in your requests** to get more accurate responses
* **Include relevant context** about what you're trying to accomplish
* **Use follow-up questions** to refine Co-Builder's suggestions
* **Request explanations** for things that you are unclear about
* **Try different phrasings** if you don't get the result you expected

## Frequently Asked Questions

> [accordion] Can Co-Builder access my app's builder instructions?
>
> Yes, Co-Builder can analyze your current instructions to provide context-aware suggestions. This helps it provide more relevant assistance based on your specific app.

> [accordion] Can Co-Builder generate complete apps?
>
> While Co-Builder can generate significant portions of the app, it works best as a collaborative tool rather than a complete app generator. It excels at helping you implement specific features and solve particular problems.

> [accordion] Does Co-Builder remember previous conversations?
>
> No, Co-Builder keeps context only within a single session. The [Playlab Assistant](https://learn.playlab.ai/features/Playlab%20Assistant) does carry notes across sessions.

> [accordion] What do I do if Co-Builder is not able to help me?
>
> Co-Builder is not perfect. If you still need additional support, continue leveraging the Playlab Learning Hub for additional information. If you're still stuck, feel free to email us at [support@playlab.ai](mailto:support@playlab.ai) for additional help.

## Need Support?

If you encounter any issues while using Co-Builder:

* Contact us at [support@playlab.ai](mailto:support@playlab.ai)

Last updated: 10-05-2026


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