Secret Claude Sonnet Prompt Trick Nobody’s Talking About Yet

A small structural change that made every output noticeably more useful.

I almost missed this because it looks too simple to matter.

Most people use Claude the same way they used earlier models: ask a question, get an answer, move on. That works fine for simple tasks. But for anything with real stakes, a plan, a piece of writing, a decision, the first answer a model gives you is usually its safest, most average response. Not wrong, just not sharp.

The trick is asking Claude to argue with itself before you accept the answer. It sounds obvious once you see it, but almost nobody does it by default.

Why the first response is usually the weakest one

Language models are built to produce a reasonable answer quickly. Reasonable is not the same as best. The first draft of anything, human or model, tends to play it safe, cover the obvious points, and avoid controversial or specific claims that might be wrong.

The way to get past that is to explicitly ask for a second pass that critiques the first one. This forces the model to stop optimizing for “safe and plausible” and start optimizing for “actually useful.”

The technique

After Claude gives you a response to any real question, follow up with this:

Now critique your own answer as if you were a skeptical expert 
reviewing it. Specifically identify:
- Anything too generic or vague to be genuinely useful
- Any assumption you made that might not apply to my actual situation
- What a genuinely sharp, specific answer would include instead

Then give me a revised version that fixes these issues.

What actually happens

The revised version is almost always more specific, and often shorter. Claude will frequently admit in the critique that it defaulted to a common piece of advice instead of engaging with the specifics you gave it. Once it names that, the second draft actually addresses your situation instead of situations in general.

I tested this on a business decision I was stuck on. The first answer was a reasonable-sounding list of pros and cons. The critique pointed out that the list ignored the actual constraint I’d mentioned, which was budget. The revised answer was shorter and far more useful, because it stopped hedging.

Where this matters most

This isn’t necessary for quick factual questions. It matters for anything with judgment involved: strategy, writing, decisions with tradeoffs. Anywhere a “reasonable” answer isn’t actually what you need.

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