Bad Prompt vs Good Prompt: A Side-by-Side Guide

Example 1: Email draft

Bad

Write an email to my client.

Good

Draft a professional email to a client delaying a project launch.
Tone: firm but collaborative.
Include: new timeline ask, risk summary, next step meeting.
Max 150 words.

Example 2: Code help

Bad

Fix my React app.

Good

React 19 + Next.js App Router.
Bug: form submits twice on mobile Safari.
Paste: relevant component below.
Propose minimal fix; explain root cause in 3 bullets.

What changed

• Specific audience and situation
• Explicit tone and length
• Source material attached
• Clear definition of done