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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

1

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 section. Reach for it whenever a block underperforms, or before you ship.
2

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.
3

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.
4

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.
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.

Learn more

Building Apps

The no-code builder where you assemble blocks, inputs, and routing.

Using Templates

Start from a proven App and adapt it to your workflow.

Prompting

The rules the prompting coach applies to every block.

Next

Dos, Don'ts and Pre-Launch Checklist

The fundamentals on one page, plus the checklist to run before every launch.