A copy-desk pass in your browser — not a cloud rewrite.

When you click Optimize, your draft is transformed by deterministic rules in the tab. No prompt is uploaded for generation, scoring, or storage. The badge Structured rewrite · no model API call is literal.

If you want a model to critique the prompt, paste the output into ChatGPT, Claude, or Gemini yourself — we do not broker that call.

We look for four common failure modes: buried task, missing audience or tone, unnamed output format, and filler phrases that eat context window. Each fix shows as a redline in the before/after view.

Model presets only change labels and phrasing habits. They do not change the checklist or call vendor APIs.

The optimizer does not add product metrics, customer names, or policy guarantees you did not supply. Expand mode on the Length tuner adds empty labeled slots — not fabricated claims.

You are always the editor. We structure; you judge facts, tone, and whether to send.

Methodology lists the same rules with tool-by-tool notes. Framework and marketing tools use separate assembly templates but the same no-API discipline.