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

# Prototyping with AI

> Use the built-in prompting coach, app-creation assistant, single-block iteration, and stop-and-go checkpoints to move from idea to working prototype in minutes

VirtualBrain ships AI assistants that design, write, and refine Apps with you, so you can move from idea to working prototype in minutes and tighten it run by run.

## The four prototyping moves

<Steps>
  <Step title="Lean on the prompting coach">
    The built-in coach reviews a block's prompt and suggests improvements (a sharper role, clearer tasks, a tighter output format) drawn from the rules in the [prompting](/apps-academy/prompting) section. Reach for it whenever a block underperforms, or before you ship.
  </Step>

  <Step title="Start from the app-creation assistant">
    Describe the deliverable you want in plain language and the assistant drafts the whole pipeline: blocks, inputs, routing, and first-pass prompts. Treat its output as a scaffold to refine, not a finished App.
  </Step>

  <Step title="Iterate one block at a time">
    When you change a prompt, re-run only the block you edited: the session keeps every other block's output, so you see the effect of your change in seconds instead of re-running the whole App.
  </Step>

  <Step title="Add stop-and-go checkpoints to validate">
    Right after the session controls, drop in a checkpoint so the App pauses at a key step and waits for your go-ahead before continuing. Use it to inspect an intermediate output, approve it or tweak the prompt, then let the run resume: ideal while you are still tuning a pipeline.
  </Step>
</Steps>

<Tip>
  The two assistants compound. Let the app-creation assistant draft the scaffold, then run the prompting coach over each block to bring every prompt up to standard before you ship.
</Tip>

## Learn more

<CardGroup cols={3}>
  <Card title="Building Apps" icon="wrench" href="/features/apps/building-apps">
    The no-code builder where you assemble blocks, inputs, and routing.
  </Card>

  <Card title="Using Templates" icon="copy" href="/features/apps/using-templates">
    Start from a proven App and adapt it to your workflow.
  </Card>

  <Card title="Prompting" icon="pen-nib" href="/apps-academy/prompting">
    The rules the prompting coach applies to every block.
  </Card>
</CardGroup>

## Next

<CardGroup cols={1}>
  <Card title="Dos, Don'ts and Pre-Launch Checklist" icon="clipboard-check" href="/apps-academy/checklist">
    The fundamentals on one page, plus the checklist to run before every launch.
  </Card>
</CardGroup>