Stop Writing Prompts Like This

Difficulty: Beginner · Estimated time: 10 min

What You'll Learn

How to turn a vague, generic request into a clear, specific prompt — and why specificity is the single biggest lever you have over the quality of Claude's answers.

Why This Matters

Two people can ask Claude about the "same" thing and get wildly different answers — not because Claude is inconsistent, but because one of them gave it something to actually work with. A vague prompt gets a vague, generic answer; a specific prompt gets a usable one. This is the single most important skill in this entire course.

The Concept

Claude can't read your mind. When you give it a thin instruction, it has to guess your task, your audience, the format you want, and how much detail is appropriate — and it will guess something generic and safe, because it has nothing else to go on. The fix is simple: tell it what you'd tell a new colleague doing the task for you. A clear prompt usually covers four things:

You don't need all four in every single prompt, but the more of them you supply, the less Claude has to guess — and the less guessing it does, the better the first result.

Step-by-Step

Example

Vague prompt:

"Write something about our new product."

→ Claude has to guess the product, the audience, the length, the tone. The result will be generic filler.

Clear prompt:

"Write a 100-word LinkedIn post announcing our new product, a reusable water bottle with a built-in filter. Audience is eco-conscious young professionals. Tone: friendly and confident, not salesy. End with a question to encourage comments."

→ Claude now has a real brief and can produce something close to usable on the first try.

Try This

Take a prompt you'd normally type in one line and rewrite it adding the task, audience, format, and one constraint — then compare it to how you'd have asked it before.

Copy This

Task: [WHAT YOU WANT CLAUDE TO DO]
Audience: [WHO THIS IS FOR]
Format: [EMAIL / BULLET LIST / TABLE / SCRIPT / PARAGRAPH / ETC.]
Length: [E.G. UNDER 150 WORDS / 3 BULLET POINTS / ONE PAGE]
Tone: [E.G. FORMAL / FRIENDLY / CONFIDENT / PLAYFUL]
Must include: [ANYTHING ESSENTIAL]
Avoid: [ANYTHING TO STEER CLEAR OF]

Common Mistakes

Level-Up Tip

If you're not sure how to brief a task yet, you can ask Claude to help you brief it: "I want to [vague goal] — what should I tell you to get the best result?" It will often ask you exactly the clarifying questions you need to answer.

Action Checklist

Next Guide

Next: 03 — Claude Is Only as Smart as the Context You Give It, where you'll learn how background information changes everything Claude produces.