Prompt Builder

Takes your goal, audience, constraints, output format, context and examples and assembles them into the structure that consistently gets better answers from any AI model: role, task, context, constraints, examples, output contract and a self-check. Deterministic — the same input always produces the same prompt. Optionally refine it with Claude.

Why it matters

Most bad AI output comes from underspecified prompts. A consistent structure is the difference between generic filler and something you can use as-is.

What you get

A copy-ready prompt with clear sections, a character and token estimate, and (optionally) an AI-refined version side by side.

Replaces

~15 minutes of rewriting prompts by trial and error

EXAMPLE

## Role
You are a lifecycle email copywriter.

## Task
Write a 5-email onboarding sequence for a Notion invoice tracker for freelancers.

## Audience
Write for: first-time freelancers. Match their vocabulary and level of expertise.

## Constraints
- under 150 words each
- no exclamation marks
- If something essential is missing, state your assumption in one line and continue.

## Output format
Respond in this format: table with subject, preview text, body.