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Prompt optimizer guide

Write a Prompt From a Rough Idea

Turn a one-line idea of what you want into a full, ready-to-paste structured prompt.

Direct answer

Start from what you want in plain words, then expand it into a structured prompt with a role, context, task, constraints, and output format. Use the optimizer when you do not yet have a prompt to critique — it rewrites the idea into something ready to paste into ChatGPT, Claude, or Gemini.

Open the Prompt Optimizer

When to use this

  • You know what you want but have not written a prompt yet.
  • Your first-draft prompt gets vague or generic answers.
  • You want a ready-to-paste prompt, not a critique.

Steps

  1. Write your goal in one plain sentence.
  2. Name who the answer is for and any must-have constraints.
  3. Run the optimizer to expand it into role, context, task, and format.
  4. Read the structured prompt and adjust specifics.
  5. Paste it into your model and iterate on the output.

Example

Rough prompt idea
help me write cold emails for my SaaS
Optimized prompt
You are a B2B copywriter.
Context: I sell a SaaS that automates invoice reconciliation for finance teams.
Task: Write a 90-word cold email.
Constraints: One clear value prop, one CTA, no buzzwords, friendly but direct.
Output format: Subject line, then the email body.

Common mistakes

  • Do not stop at the idea; an unstructured idea gives unstructured output.
  • Add the audience and constraints, or the optimizer has to guess them.
  • If you already have a working prompt, review it instead of regenerating from scratch.

FAQ

How do I write a prompt if I don't have one yet?
Describe your goal in one sentence and let the optimizer expand it into a structured prompt with role, context, task, constraints, and output format.
Should I use the optimizer or the reviewer?
Use the optimizer when you have only a rough idea and want a ready-to-paste prompt. Use the reviewer when you already have a prompt and want targeted critique.
Which models does the output work with?
The structured prompt works with ChatGPT, Claude, Gemini, and most assistants, since it relies on clear role, task, and format rather than model-specific tricks.

Related prompt guides

Prompt Reviewer vs Prompt Optimizer

Related Prompt Optimizer guides

How to Structure a Prompt (Template)

The building blocks of a strong prompt — role, context, task, constraints, output format, and examples — with a reusable template.

Few-Shot Prompting: Add Examples to Your Prompt

Show the model one to three input-output examples so it copies the pattern you want.

Chain-of-Thought Prompting: Ask for Step-by-Step Reasoning

Prompt the model to reason step by step to improve accuracy on multi-step math, logic, and planning tasks.

Role and Persona Prompting (Act As)

Assign the model a role or persona to control tone, depth, and vocabulary in its answers.

Control the AI Output Format (JSON, Tables, Lists)

Get consistent, parseable output by specifying the exact format, fields, and what to exclude.