> ## Documentation Index
> Fetch the complete documentation index at: https://synthetiq.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Your first app
> Build a working web application from a chat message — describe what you need, review the plan, and open the finished app.
Build a working web application from a chat message. In this tutorial, you describe an app to Synthetiq, review the plan, and open the finished result.
## Prerequisites
* Synthetiq installed, signed in, and your Claude API key saved (see [Set Up Synthetiq and Set Your API Key](/quickstart/setup-and-api-key))
## Steps
Click the **chat icon** in the left menu, or press **⌘]**, to open the chat panel.
Type a description of your app into the chat. Be specific about the features you need.
For this tutorial, type:
> Create a training request form where employees can submit course requests with their name, the course title, estimated cost, and approval status
Press **Enter** to send your message.
The Workspace agent recognizes that you want to build an app and hands off to the **AppWriter** agent. A mode-switch indicator appears in the chat showing the transition.
The AppWriter agent presents a plan for your app. The plan card covers the app's features, data model, and pages. Read through it to make sure it matches what you had in mind.
If the plan looks good, click **Accept & Proceed** at the bottom of the plan card. The AppWriter agent begins building your app.
If something needs changing, click **Request Revisions** instead and describe what you want adjusted.
The AppWriter agent creates your app's frontend, backend, and database. You can watch progress as tool calls appear in the chat. This takes a minute or two depending on the complexity of your app.
When the build finishes, the agent provides a link to your app. Click the link to open it in a new tab.
You can always ask the agent to make changes after the app is built. Just describe what you want in the chat — for example, "Add a manager approval workflow to the training request form."