Input

Each tool collects structured inputs, not a freeform chat prompt. The rewriter takes existing copy and a target voice. The brief tool takes a creative brief. The image prompt tool takes a concept and style direction.

System prompts

Each mode runs against a purpose-built system prompt that constrains the model's output format, quality bar, and behavior. This is prompt engineering as architecture, not as conversation.

Output

Responses are parsed into structured, labelled blocks. Copy is immediately usable, not a chat response you need to extract from. Every block is copyable with one click.

Architecture

Three modes, one API route, three system prompts. Built on Anthropic's Claude API via a server-side route handler. Inputs validated and rate-limited server-side. No data stored.