# Enhance prompts

> Set magic_prompt to have Mynth rewrite the prompt for the chosen model before it runs, and read back the text that ran.

Set `magic_prompt: true` on `POST /image/generate`. Mynth rewrites the prompt
for the model that will run, then generates from the rewrite. Your original
prompt stays on the task's `request`, and the text that ran is
`result.magic_prompt`.

**SDK**

```ts
import Mynth from "@mynthio/sdk";

const mynth = new Mynth();

const task = await mynth.image.generate({
  model: "black-forest-labs/flux.2-pro",
  prompt: "please make a nice picture of a lighthouse",
  magic_prompt: true,
});

console.log(task.result?.magic_prompt?.positive);
```

**CLI**

```bash
npx @mynthio/cli image generate \
  -m black-forest-labs/flux.2-pro \
  -p "please make a nice picture of a lighthouse" \
  --magic-prompt
```

```json
{
  "magic_prompt": {
    "positive": "A lighthouse on a rocky point at dusk, film grain, cool blue haze",
    "negative": "blurry, watermark"
  }
}
```

`negative` is present only when the request had a `negative_prompt`, which is
rewritten too.

## What the rewrite does

It keeps your intent. The subject, counts, names, and any text meant to appear
in the image stay. Wrapper phrases such as "please generate" go. It does not
add objects you did not ask for, and it adapts to the style of the model that
will run. A more creative rewrite mode is in development.

## Price and limits

Magic Prompt costs $0 today. It is included in the generation estimate, so a
future price will show up before you send. Video requests do not take
`magic_prompt`.

## Next steps

- [Generate images](https://mynth.io/docs/guides/generate-images.md): the rest of the request.
- [Prompts and images](https://mynth.io/docs/concepts/prompts.md): what the rewrite reads, and what the provider receives.