POST /design/prompts/enhance rewrites a free-form prompt so it’s grounded in the brand profile of an existing completed submission. Unlike submissions, this call is synchronous: you get the rewritten prompt back in the response.
Use it to steer downstream generation toward a specific brand’s look and feel.
Request
submission_id: a completed submission whose brand profile grounds the rewrite.prompt: the free-form prompt to enhance.
Response
enhanced_prompt along with the brand context used: brand_name, source_url, and model_used.
The referenced submission must have completed extraction. See Extract a brand for how to get there.

