10 Prompts to Improve Claude’s Output Quality

A former researcher from Anthropic has publicly shared 10 prompt strategies that have been validated internally, ranging from situational briefings to pre-mortem analyses. These carefully designed templates can significantly enhance the output quality of Claude. This article not only provides reusable templates but also reveals the design logic and usage scenarios behind each prompt, helping you transform AI from a Q&A machine into a true thinking partner.

The researcher compiled 10 practical prompt strategies used by the Anthropic team. I took the time to test each one and reorganized them according to my own usage scenarios, resulting in this article. You can directly copy the templates or read further to understand the logic behind each one.

1. Situational Briefing: Provide a “Map”

Recommended Template:

“My background is: [your role or specific situation]. I have tried: [Method A, Method B]. Currently stuck on: [specific difficulty]. Please help me clarify my thoughts.”

Many users jump straight to questions without providing context. Claude doesn’t know who you are, what you’ve tried, or where you’re stuck, leading to generic answers. Internal testing shows that adding background significantly improves output quality. The more specific the information you provide, the more distractions it can help eliminate.

2. Reasoning Requirement: Show the Process, Not Just the Answer

Recommended Template:

“Before providing a solution, please show your reasoning step-by-step, point out all uncertainties, and label each assumption.”

When Claude gives you a conclusion, how do you know it’s correct? Forcing it to display its thought process not only makes the output seem more credible but also allows you to see what judgments it made at each step, making it easier for you to question or correct it.

3. Honesty Constraint: Clearly State “No Softening”

Recommended Template:

“Even if the content is uncomfortable, please remain completely honest. If my plan has fatal flaws, please say so without softening the tone. I would rather hear hard truths now than face failure later.”

Claude naturally tends to “make users comfortable.” When there are issues with your plan, it may soften its criticism. Adding this phrase results in more direct feedback from Claude, activating its underlying honesty mechanism.

4. Role Setting: The More Specific, the Better

Recommended Template:

“You are a [specific role] with [X years of specific field] experience, who has seen [common failure modes]. Please analyze using [specific framework], speaking candidly and skipping general advice.”

“Please act as an expert” is the weakest role prompt because it lacks clarity. The more specific the identity, the more targeted the reasoning. Being a “senior SaaS product manager who has experienced failures from 0 to 1 and cold starts” yields entirely different output quality compared to just saying “expert.”

5. Devil’s Advocate: Have It Tear Apart Your Plan

Recommended Template:

“I want to share a plan. Your task is to completely destroy it: find all erroneous assumptions, overlooked risks, and potential failure reasons. Please don’t hold back.”

Claude is usually compliant and tends to agree with you. This is a common practice within Anthropic for testing ideas—one high-quality challenge is worth far more than ten agreements. This is particularly suitable for rehearsing before product reviews or plan presentations.

6. Scope Lock: Cut Off Illusions from the Source

Recommended Template:

“Please strictly limit the discussion to [X background or scope]. If it goes beyond this scope, please make it clear rather than speculate. I prefer an honest ‘I don’t know’ over seemingly credible fictional content.”

Claude likes to extend topics, and sometimes those extensions are fabricated. This is especially useful when dealing with specific data, regulations, or industry details; confining its scope ensures more reliable output.

7. Format Command: Specify Output Structure in Advance

Recommended Template:

“Please strictly follow this format: 1) one-sentence summary; 2) three core points; 3) one specific next step suggestion. Do not add any other content unless I ask.”

Claude adheres well to format instructions, but many users never utilize this capability. When the output is needed directly for documents or reports, this prompt can save a lot of organizing time.

8. Assumption Audit: Question It to Uncover Hidden Risks

Recommended Template:

“What assumptions did you make in this answer? How should I verify them? If these assumptions are incorrect, how would the answer change?”

After receiving a complex answer, immediately follow up with this prompt. Many decisions fail not due to execution issues but because of incorrect underlying assumptions. This prompt helps you identify those taken-for-granted premises before taking action.

9. Compression Loop: Regularly Review Long Conversations

Recommended Template (use every 5-6 rounds):

“Please summarize the current progress: what problems have we solved? What decisions have we made? What are the most important unresolved issues now?”

After chatting with Claude for more than five or six rounds, it may forget the initial focus or get sidetracked by a detail. This isn’t just helping Claude organize; it’s helping you maintain focus.

10. Pre-Mortem: Simulate Failure Before Major Decisions

Recommended Template:

“Assume this plan fails in six months. Please list three most likely reasons and describe the actual manifestations of failure.”

This method is known in psychology as a “pre-mortem.” The Anthropic product team reportedly goes through this process before any major decision. It forces you to confront those “unpleasant thoughts” about risks while your emotions are stable.

Final Thoughts

The underlying logic of these 10 prompts is simple: treat Claude as a thinking partner that needs guidance, not just a Q&A machine. The more complete the context you provide, the clearer the constraints, and the more direct the challenges, the more valuable the responses will be.

You can save these templates and make slight adjustments based on your scenarios to gradually form your own prompt toolbox. Over time, you’ll find that the quality of answers can vary significantly depending on how you phrase the same question.