TL;DR: A Redditor stress-tested prompts across Claude, GPT-4, and Gemini for 6 months and distilled their daily toolkit into 10 templates. Each one saves 15-30 minutes. The meta-formula tying them all together is at the bottom and worth reading.
Prompt lists are everywhere. Most of them are theoretical. This one is not.
The original poster, u/Consistent-Carpet-40, published this after 6 months of daily use across three major AI models. Not “I tried this once and it seemed good.” Daily use. That kind of real-world vetting is what separates a useful list from a wishlist.
Here are all 10 prompts, reproduced exactly, with notes on why each one actually works.
1. Universal Rewriter
Rewrite this text for [audience]. Maintain all key information but adjust tone, vocabulary, and structure. Target style: [casual/professional/technical]. Text: [paste]
The “[audience]” and “[style]” fields do the heavy lifting. They eliminate ambiguity so the AI doesn’t guess who it’s writing for. Swap in “senior engineers” or “first-time buyers” and the output shifts completely.
2. Code Review Assistant
Review this code for: bugs, security vulnerabilities, performance issues, and readability. For each issue found, explain WHY it’s a problem and provide the corrected version. Code: [paste]
The “explain WHY” instruction separates this from a generic review. You get reasoning alongside the fix, not just a list of flags. That context is what actually teaches you something.
3. Meeting Prep Generator
I have a meeting with [person/company] about [topic]. Generate: 5 talking points, 3 potential objections they might raise, and 2 smart questions I should ask. Keep each under 2 sentences.
Three distinct outputs in one prompt. The sentence limit per item keeps the result scannable before you walk into the room. Works for sales calls, investor meetings, and tough client conversations.
4. Email Style Matcher
Here’s an email I received: [paste]. Draft a response that matches their communication style, addresses all their points, and moves toward [desired outcome]. Max [N] words.
Feeding the original email in as a style reference is the key move. Without it, you get a generic reply. With it, you match the other person’s register. The “desired outcome” field keeps the response strategic, not just polite.
5. Decision Matrix Builder
I need to choose between [Option A] and [Option B] for [context]. Create a weighted decision matrix using these criteria: [list]. Score each option 1-10 with brief justification. Recommend the best choice.
“Recommend the best choice” is the critical instruction. Without it, you get a table and a shrug. With it, you get a verdict. Most people skip that line and then wonder why the AI hedges.
6. Content Multiplier
Take this blog post and create: 3 tweet-length takeaways, 1 LinkedIn post with the key insight, and 5 bullet points for an email newsletter. Maintain my voice: [describe]. Original: [paste]
One piece of content into three formats in a single shot. The “maintain my voice” field is the one people skip and then wonder why everything sounds generic. Put something specific there, not just “casual.”
7. Competitive Intelligence
Analyze [competitor] based on publicly available info. Structure: strengths, weaknesses, market positioning, pricing strategy, and 3 opportunities they’re missing that I could capitalize on. My business: [brief description].
“3 opportunities they’re missing that I could capitalize on” turns a standard analysis into something actionable. That phrase alone is worth stealing for any competitive research prompt you write from scratch.
8. Expert Consultant (System Prompt)
You are a senior [role] with 20 years of experience in [industry]. You give direct, actionable advice. You always ask clarifying questions before diving into solutions. You back recommendations with reasoning. Never use corporate buzzwords.
This is a system prompt, not a task prompt. It sets the AI’s behavior for the entire conversation. “Always ask clarifying questions” and “never use corporate buzzwords” are the two rules that make the output actually usable rather than confident-sounding noise.
9. Debug Assistant
Analyze this error/bug: [paste details]. Provide: 1) Most likely root cause, 2) Step-by-step debugging approach, 3) Potential fix with code, 4) How to prevent this in the future.
Four outputs in order: root cause, approach, fix, prevention. That structure mirrors how a senior engineer actually works through a bug. Skipping any of the four usually means the same bug surfaces again in two weeks.
10. Socratic Tutor
I want to learn [topic]. Instead of explaining everything at once, ask me questions that guide me to understand the concept myself. Start with the most fundamental question. Adjust difficulty based on my answers. If I’m stuck, give a hint, not the answer.
Instead of asking for an explanation, this asks for questions. Passive reading becomes active thinking. The “hint, not the answer” rule keeps you doing the cognitive work. Multiple readers in the thread flagged this as the standout prompt, and it’s easy to see why.
The formula behind all 10
The author spells it out directly: [ROLE] + [CONTEXT] + [TASK] + [FORMAT] + [CONSTRAINTS]
Here’s the before and after they included:
- Bad: “Write a marketing email”
- Good: “You’re a senior SaaS copywriter. Our product helps freelancers track time. Write a cold email to users who currently use spreadsheets. Keep it under 150 words. Tone: casual but professional.”
The extra setup takes 15 seconds. The output is meaningfully better. That trade-off holds every time.
🧠 Prompt of the Day
The Socratic Tutor. It works for any subject, any skill level. Drop in “machine learning,” “stoic philosophy,” or “double-entry bookkeeping” and the AI walks you through it by questioning rather than lecturing.
I want to learn [topic]. Instead of explaining everything at once, ask me questions that guide me to understand the concept myself. Start with the most fundamental question. Adjust difficulty based on my answers. If I’m stuck, give a hint, not the answer.
Start with two, not ten
Don’t try to integrate all of these at once. Pick two that fit your current workflow and test them this week. The Universal Rewriter and the Expert Consultant work in almost any context and are good starting points.
The full post and community discussion live in r/ChatGPTPromptGenius. The replies added a few more prompts worth seeing. Worth a look if you want to keep building out your toolkit.
My top 10 daily-use prompts after 6 months of prompt engineering (copy-paste ready)
by u/Consistent-Carpet-40 in ChatGPTPromptGenius