Prompt Builder

Turn a rough idea into instructions you can read, edit, and reuse.

AI engineer or manual builder

In AI mode, describe an outcome or include an existing prompt. Allow the submission to OpenAI, answer focused questions, then review a separately critiqued proposal before applying it. Manual mode assembles editable instructions locally without an AI request.

Start with the task

Say what you want done. Add context that changes the answer, requirements that matter, and a useful output format. Role, tone, and detail are optional; more fields do not automatically make a better prompt.

A small example

Task:
Review this project brief for missing requirements.

Constraints:
- Separate confirmed requirements from suggestions.
- Ask about missing information rather than inventing it.

Output format:
A short list of questions, with a reason for each.

Keep control of the final text

The editor is authoritative. Copy, export, analysis, and local saving use its exact text. After you edit directly, changing a form field offers a regenerated preview, Keep manual text, or Cancel. Undo provides a session recovery path.

Reusable details, literal substitution

Register variables such as {{PROJECT_NAME}} and fill them in once. Only registered variables are expanded. Ordinary braces in JSON or code are left alone, and variable values are never expanded recursively.