AI Prompt Engineering · 2026

The Ultimate Guide to AI Prompt Engineering (2026)

Frameworks, templates and 50 ready-to-use prompts for ChatGPT, Claude and Gemini — with before-and-after examples that actually work.

By Asfar Khan · AK Studios · Islamabad

The gap between a mediocre AI response and a genuinely useful one is almost never the model. It's the prompt. Two people can use the exact same version of ChatGPT and get completely different quality of output — one gets a generic paragraph they have to rewrite from scratch, the other gets something 80% finished. The difference is a learnable skill, not luck.

This guide breaks that skill down into its actual components: how AI models process instructions, the nine parts of a genuinely well-built prompt, seven proven frameworks, fifteen reusable templates, and fifty ready-to-use prompts across ten professions. Nothing here requires coding. It requires learning to write a clear brief — something most people have simply never been taught to do for an AI.

Table of Contents

  1. What Is Prompt Engineering?
  2. How AI Models Understand Prompts
  3. Anatomy of a Great Prompt
  4. Proven Prompt Frameworks
  5. Prompt Templates by Use Case
  6. Prompting ChatGPT, Claude & Gemini
  7. Advanced Prompting Techniques
  8. Common Prompt Mistakes
  9. Prompt Engineering for Business
  10. 50 Best Prompt Examples
  11. Final Thoughts
  12. Frequently Asked Questions

What Is Prompt Engineering?

Prompt engineering is the practice of writing instructions for an AI model in a way that reliably produces the output you actually want. It's not a technical discipline in the way software engineering is — there's no code to learn. It's closer to learning how to brief a very capable, very literal new employee who has no memory of your business, your voice, or what you actually meant by a one-line request.

AI models don't "understand" intent the way a colleague does. They predict the most statistically likely continuation of the text you give them, based on patterns learned from enormous amounts of writing. A vague prompt gives the model very little to work with, so it falls back on the most generic, average version of an answer. A specific, well-structured prompt narrows that space dramatically, pointing the model toward exactly the kind of response you had in mind.

A common misconception is that prompt engineering means finding a secret "magic phrase" that unlocks better answers. It doesn't. The improvement comes from consistently supplying the same information you'd give a human collaborator — goal, context, audience, constraints and format — instead of assuming the AI can infer it.

The skill matters more in 2026 than it did a couple of years ago simply because AI is now embedded in more of the daily workflow — inside email clients, design tools, spreadsheets and code editors, not just a standalone chat window. As models take on more multi-step, tool-using tasks, the quality of the initial instruction has a bigger compounding effect on the entire chain of results that follows it. A vague instruction at the start doesn't just produce one weak answer — it can send an entire multi-step workflow in the wrong direction.

How AI Models Understand Prompts

You don't need a technical background to write great prompts, but a basic sense of what's happening under the hood makes it much easier to predict why a prompt worked or didn't.

Tokens

Models don't read whole words — they break text into chunks called tokens. Extremely long or dense prompts eventually compete for the same limited space as the response itself.

Context Window

This is the total amount of text — your prompt, any uploaded documents, and the conversation history — the model can "see" at once. Older messages can fall out of view in very long conversations.

Instructions

Direct, explicit instructions ("write exactly 5 bullet points") are followed far more reliably than implied ones ("keep it short").

Roles

Assigning a role or persona ("act as a tax accountant") shifts the vocabulary, tone and assumptions the model draws on for its answer.

Memory

Some tools retain facts about you across sessions (like ChatGPT's memory feature); others treat every new chat as a blank slate unless you paste in context yourself.

Reasoning

Asking a model to work through a problem in visible, step-by-step stages before answering often produces more accurate results on multi-step or logical tasks.

Temperature

A setting (mostly relevant in developer tools, not consumer chat apps) that controls how predictable versus varied the output is — lower for precision, higher for creative variety.

None of these mechanics need to be memorized to write good prompts — but understanding that the model is predicting likely continuations, not reading your mind, explains why specificity works. Every extra detail you add narrows the range of plausible "next words" toward the answer you actually want.

Anatomy of a Great Prompt

Every strong prompt is built from some combination of these nine components. You won't need all nine every time, but knowing the full list means you'll notice which one is missing when a response falls flat.

1. Goal

What you actually want produced — the single clearest sentence in the prompt.

2. Context

Background the AI has no way of knowing — your product, industry or situation.

3. Role

The expert perspective you want the answer written from.

4. Audience

Who will actually read or use the output.

5. Constraints

Length limits, things to avoid, hard rules to follow.

6. Desired Output

The concrete deliverable — an email, a table, a script, a list.

7. Tone

Formal, casual, persuasive, technical — named explicitly.

8. Format

Headings, bullets, JSON, plain prose — stated up front.

9. Examples

A sample of the style or structure you're aiming to match.

Here's the same request written two ways — with none of those components, and with most of them included.

Weak PromptWrite about email marketing.
Strong PromptRole: You are an email marketing strategist with 10 years of B2B SaaS experience. Goal: Write a 5-email onboarding sequence for a new project management app. Audience: Busy startup founders who signed up but haven't logged in yet. Context: The product's core value is saving 5 hours a week on task tracking. Constraints: Each email under 150 words, one CTA per email, no jargon. Format: Subject line + body for each email, numbered 1-5.

The weak prompt could reasonably return a blog post, a tweet or a textbook definition — the model has to guess. The strong prompt leaves almost nothing to guess, which is exactly why it performs better. Notice that it doesn't use every one of the nine components — there's no explicit "examples" section — because the role, context and constraints together already remove most of the ambiguity. That's the actual skill: judging which components a given task needs, not mechanically filling in all nine every time.

Proven Prompt Frameworks

You don't need to invent a structure from scratch every time. These seven frameworks cover most real-world prompting situations.

Framework 1

Role – Task – Context – Format (RTCF)

The most reliable general-purpose structure. State who the AI should be, what to do, what background it needs, and how to deliver the answer — in that order.

Role: You are a UX writer for a fintech app. Task: Write 5 microcopy options for a "payment failed" error message. Context: Users are often mid-checkout and frustrated; the app supports Pakistan and UAE. Format: A numbered list, each option under 12 words.

Use it when: you're starting a new task from scratch and want the most reliable, all-purpose structure.

Framework 2

Goal – Constraints – Output (GCO)

A leaner version of RTCF for quick, low-stakes tasks where a full role isn't necessary — just the outcome, the boundaries, and the shape of the answer.

Goal: Suggest 10 Instagram caption ideas for a new coffee shop opening. Constraints: Under 15 words each, no emojis, upbeat tone. Output: A plain numbered list.

Use it when: the task is small enough that a full role would be overkill, and you just need boundaries and a shape.

Framework 3

Chain-of-Thought Prompting

Ask the model to reason through a problem in visible stages before giving a final answer. This is especially useful for math, logic, planning and debugging, where seeing the steps helps you catch errors in the reasoning, not just the result.

Walk through this step by step before giving your final answer: A client's budget is 300,000 PKR split across photography (40%), video (35%) and drone coverage (25%). Show each category's allocation, then total.

Use it when: the task involves calculation, logic or a decision with multiple factors — anywhere a wrong intermediate step would produce a wrong final answer.

Framework 4

Few-Shot Prompting

Show one or more examples of the exact input-output pattern you want before asking the model to continue it. This is the single most reliable way to lock in a specific tone or format.

Rewrite each product name in this playful style. Example: Input: "Wireless Earbuds" → Output: "Cord-Cutter Pods" Now do the same for: "Stainless Steel Water Bottle"

Use it when: tone or format is hard to describe in words but easy to show — voice matching, specific formatting, or a style you can't fully articulate.

Framework 5

Zero-Shot Prompting

The opposite of few-shot — clear instructions with no examples at all, relying entirely on the model's general training. Works well for straightforward, common tasks where the format is obvious and doesn't need demonstrating.

Summarize the following article in 3 bullet points for a busy executive who has 30 seconds to read it: [paste article text]

Use it when: the task is common enough that the model already has a strong default pattern for it, and an example would just add length without adding clarity.

Framework 6

Step-by-Step Prompting

Break a large task into an explicit numbered sequence inside the prompt itself, so the model addresses each part in order instead of collapsing everything into one shallow answer.

Do the following in order: 1. List 3 possible blog titles for a post about drone photography pricing. 2. Pick the strongest title and explain why in one sentence. 3. Write a 2-sentence meta description for that title.

Use it when: a task has genuinely separate stages, and letting the model tackle them out of order (or all at once) would blur the result.

Framework 7

Iterative Refinement

Rather than trying to write the perfect prompt on the first attempt, treat the first response as a draft and refine it with short, targeted follow-ups. This is often faster than trying to anticipate every requirement up front.

That's a good start. Now: shorten it by half, remove the third bullet point, and make the tone more conversational.

Use it when: the task is subjective or hard to fully specify up front — tone, creative direction, or anything you'll "know when you see it."

Framework Cheat Sheet

FrameworkBest ForKey Move
Role – Task – Context – FormatMost everyday tasksState who, what, why and how before anything else
Goal – Constraints – OutputQuick, low-stakes requestsSkip the role, keep the boundaries
Chain-of-ThoughtMath, logic, planning, debuggingAsk for visible step-by-step reasoning
Few-ShotMatching a specific tone or formatShow one example, then ask for more
Zero-ShotCommon, well-understood tasksClear instructions, no example needed
Step-by-StepMulti-stage tasksNumber the stages explicitly
Iterative RefinementSubjective or creative outputTreat the first answer as a draft

These aren't mutually exclusive — a strong real-world prompt often combines two, like RTCF with a chain-of-thought instruction folded into the "task" line.

Prompt Templates by Use Case

Fifteen reusable templates — copy one, fill in the brackets, and adjust the details to your situation.

Blog Writing

Role: You are an experienced [industry] blogger. Task: Write a [word count]-word blog post titled "[title]" for [audience]. Context: [key facts, brand voice, or angle to include] Format: Intro, 3-5 H2 sections, conclusion. Conversational tone.

SEO Articles

Write a [word count]-word article optimized for the keyword "[keyword]". Include the keyword naturally in the title, intro and at least 2 subheadings. Target search intent: [informational/commercial/transactional]. Audience: [description]. Avoid keyword stuffing.

Social Media Captions

Write 5 Instagram caption options for a post about [topic/product]. Tone: [playful/professional/inspirational]. Each under [X] words. Include one relevant call-to-action per caption.

Email Writing

Write a [type: follow-up/cold outreach/announcement] email to [recipient description]. Goal: [what you want the reader to do]. Tone: [tone]. Keep it under [X] words with one clear CTA.

YouTube Scripts

Write a [length]-minute YouTube script about "[topic]" for [channel niche]. Structure: hook (first 10 seconds), 3 main points, call-to-action outro. Tone: [tone]. Audience: [description].

Thumbnail Ideas

Suggest 8 YouTube thumbnail concepts for a video titled "[title]". For each: describe the main visual, any text overlay (max 4 words), and the emotion it should convey.

Coding

Language: [e.g. JavaScript]. Task: [describe the function/bug/feature]. Context: [paste relevant existing code]. Constraints: [performance needs, libraries allowed, style guide to follow].

Marketing Campaigns

Plan a [platform] marketing campaign for [product/service] targeting [audience]. Goal: [awareness/leads/sales]. Budget context: [if relevant]. Output: campaign theme, 3 content pillars, and a 2-week content outline.

Business Plans

Act as a business consultant. Outline a business plan for [business idea] targeting [market]. Include: value proposition, target customer, revenue model, and 3 key risks. Keep each section to 2-3 sentences.

Product Descriptions

Write a product description for [product name] sold on [platform]. Key features: [list]. Target buyer: [description]. Tone: [tone]. Length: under [X] words. Include one benefit-focused headline.

Customer Support

Write a response to a customer who is [describe the complaint/issue]. Company policy: [relevant policy]. Tone: empathetic but professional. Goal: resolve the issue while [upsell/retain/de-escalate — pick one].

Resume Writing

Rewrite this resume bullet point to be more results-focused and use a strong action verb: "[paste current bullet point]" Target role: [job title]. Keep it to one line.

Interview Preparation

Act as an interviewer for a [job title] role at a [industry] company. Ask me 5 realistic interview questions one at a time, and give brief feedback on my answer before asking the next.

Research Summaries

Summarize the following [article/report/paper] in plain language for someone with no background in [field]. Include the 3 most important takeaways as bullet points. [paste source text]

Translation

Translate the following text into [language], keeping the tone [formal/ casual] and adapting any idioms so they sound natural to a native speaker rather than a literal translation: [paste text]

Prompting ChatGPT, Claude & Gemini

The core principles in this guide transfer across every major AI assistant. That said, each model has developed slightly different habits worth adapting to — without assuming one is universally "better" at prompting.

ChatGPT

Built for Fast, Conversational Iteration

ChatGPT handles quick back-and-forth refinement well — you can correct course mid-conversation without restating your whole prompt. Custom GPTs let you save a role and instruction set so you don't rebuild the same prompt structure every time. It also has native image generation and web browsing, so multimodal prompts (text plus a request for an image) work in a single message.

Claude

Rewards Long, Structured Instructions

Claude tends to follow detailed, multi-part prompts very precisely, including formatting rules and multi-step instructions given all at once. Its large context window makes it well suited to pasting in an entire document, transcript or draft alongside your instructions rather than summarizing it yourself first. It generally performs strongly on long-form writing tasks with a lot of stated constraints.

Gemini

Strongest When Grounded in Real Context

Gemini performs best when a prompt references content it can actually access — a connected Google Doc, a Gmail thread, or a request for current, web-grounded information. For tasks fully contained in Workspace (drafting inside Docs, summarizing a Sheet), it removes the copy-paste step other tools require.

SituationModel to Reach For First
Fast iteration on a rough ideaChatGPT
Long, detailed instructions with strict formattingClaude
Working inside Gmail, Docs or SheetsGemini
Summarizing a large pasted documentClaude
Need an image generated in the same chatChatGPT
Need current, web-grounded informationGemini

For a deeper comparison beyond prompting habits — pricing, use cases by profession, and a full decision matrix — see our ChatGPT vs Claude vs Gemini guide.

One practical habit worth building regardless of which model you use: re-test your go-to prompts every few months. Model behavior shifts with updates, and a prompt structure that worked perfectly last year can quietly start underperforming as a model's defaults change — the frameworks in this guide stay useful, but the exact wording that gets the best result from a specific model is worth revisiting periodically rather than treated as permanent.

Advanced Prompting Techniques

Once the fundamentals are solid, these nine techniques help with more complex or repeatable workflows.

Persona Prompting

Go beyond a generic role by giving the AI a detailed persona — years of experience, specific expertise, even a communication style — to shift both the vocabulary and judgment behind its answers. Example: "You are a skeptical CFO reviewing this pitch — point out every financial assumption that seems too optimistic."

Style Transfer

Paste a sample of writing in the style you want matched (yours, a publication's, a brand's) and ask the AI to rewrite new content to match that voice, sentence rhythm and vocabulary.

Structured Outputs

Explicitly request a specific structure — a comparison table, a numbered framework, a decision tree — rather than open prose, when the content is inherently comparative or sequential.

Markdown Formatting

Ask directly for headings, bold key terms, and bullet lists when you'll be pasting the output somewhere that renders markdown, so you skip manual reformatting.

JSON Generation

Provide the exact field names and structure you want, and ask for JSON only with no surrounding commentary — essential when the output feeds into another tool or script. Example: "Return only valid JSON with the fields: title, summary, tags (array). No extra text before or after the JSON."

Multi-Step Workflows

Combine several of the frameworks above into a single ordered prompt — research, then outline, then draft — when the task naturally has distinct stages.

Prompt Chaining

Split a complex task across multiple separate prompts, feeding each output into the next request, instead of trying to get a finished result from one giant prompt.

Self-Critique Prompts

After a first response, ask the model to review its own answer against specific criteria — "does this meet the word limit? Is anything vague?" — before you request a revision.

Iterative Improvement

Treat every AI response as v1, not final. The biggest quality jump often comes from a second or third targeted refinement, not a longer initial prompt.

Common Prompt Mistakes

Most disappointing AI output can be traced back to one of six recurring mistakes — all fixable in the prompt itself, without needing a different tool.

Prompt Engineering for Business

Prompting isn't just a writing skill — it's becoming a practical business tool across nearly every department.

Marketing

Campaign ideation, ad copy variations, and audience persona development at a speed no team could match manually.

Sales

Personalized outreach drafts, objection-handling scripts, and quick research summaries on a prospect before a call.

Customer Service

Drafting empathetic, on-policy responses to common complaints, then having a human review and send.

SEO

Content brief generation, meta description drafts, and FAQ ideation based on real search intent.

Content Calendars

Turning a single campaign theme into a month of platform-specific content ideas in minutes.

Brainstorming

Generating a wide spread of directions fast, then having a human pick and refine the strongest ones.

Documentation

Turning rough internal notes into clear, structured process documents or onboarding guides.

Meeting Summaries

Condensing a transcript into decisions made, owners assigned, and next steps — in a consistent format every time.

None of these use cases require a dedicated AI team or a big software budget — most start with someone on staff learning the frameworks in this guide and applying them to whatever task is currently eating the most hours. The businesses getting real value from AI in 2026 usually didn't start with a formal strategy; they started with one person getting good at prompting one recurring task, then sharing what worked with the rest of the team.

50 Best Prompt Examples

Ready-to-use prompts across ten professions — copy, adjust the bracketed details in [brackets], and go. These are deliberately written as complete, specific requests rather than one-word topics, so you can paste most of them directly into ChatGPT, Claude or Gemini with minimal editing.

For Bloggers & Writers

For Marketers & Advertisers

For Social Media Managers

For YouTubers & Video Creators

For Developers

For Designers

For Business Owners & Entrepreneurs

For Students & Researchers

For Customer Support Teams

For SEO Specialists

Before You Hit Enter: A Quick-Start Checklist

Run through this in your head before sending any prompt that matters — it takes less time than reading a bad first draft.

Final Thoughts

Prompt engineering isn't a formula you memorize once and apply forever — the models keep changing, and the best prompt for a task today may need adjusting in six months. What doesn't change is the underlying discipline: be specific about your goal, give the context a stranger would need, state your constraints, and treat the first answer as a draft rather than a verdict.

If you take one thing from this guide, make it this: the quality gap between people who "use AI" and people who get real, repeatable value from it almost never comes down to which tool they subscribed to. It comes down to whether they learned to brief it clearly. That's a skill you build through repetition on your own real tasks, not by reading one more list of prompts — so pick the frameworks and templates above that match what you actually do every week, and start there.

Practical takeaway: Pick one real task you do weekly, rewrite your usual prompt for it using the RTCF framework above, and compare the result to what you'd normally get. That single comparison teaches the skill faster than reading about it.

Want AI-Powered Content Without Learning Every Tool Yourself?

At AK Studios by Asfar Khan, we already build prompts, workflows and AI-assisted production into our photography, video and content work for clients across Islamabad, Rawalpindi and Pakistan. If you'd rather hand this off than learn it yourself, we're happy to talk.

Talk to Us

Frequently Asked Questions

What is prompt engineering?

Prompt engineering is the practice of writing instructions for an AI model in a way that reliably produces the output you actually want. It covers how you structure a request — the goal, context, role, constraints and format — rather than any change to the AI model itself.

Can anyone learn prompt engineering?

Yes. Prompt engineering doesn't require a technical or coding background. It's closer to learning to write a clear brief than learning a programming language, and most of the improvement comes from practicing the frameworks in this guide on your own real tasks.

Which AI responds best to prompts?

There's no single winner — ChatGPT, Claude and Gemini all respond well to clear, structured prompts, but each has slightly different strengths. Claude tends to follow long, detailed instructions very precisely. ChatGPT is strong at fast, conversational iteration. Gemini performs best when you reference content already in Google Workspace or need current, web-grounded information.

Do better prompts actually improve AI accuracy?

Yes, in most practical cases. A well-structured prompt reduces ambiguity, which reduces the chance the AI guesses wrong about what you meant. It doesn't eliminate factual errors entirely — you should still verify important claims — but it significantly reduces vague, off-target or generic answers.

Are prompt engineering skills worth learning in 2026?

Yes. As AI tools become standard in more jobs, the ability to get precise, usable output on the first or second try is a real productivity advantage — regardless of whether your job title includes the words "prompt engineer."

How do I write better ChatGPT prompts?

Give ChatGPT a role, a clear goal, relevant context, and your desired format in the same message. Then treat the first response as a draft — refine it with follow-up instructions rather than starting a new chat from scratch each time.

What's the difference between a prompt and a query?

A search query is usually a few keywords aimed at finding existing information. A prompt is a full instruction — with context, constraints and a desired format — aimed at generating new, custom output. Treating an AI prompt like a search query is one of the most common reasons people get vague results.

Do I need to know how to code to learn prompt engineering?

No. Prompt engineering for everyday use — writing, research, marketing, planning — requires no coding at all. Coding knowledge only becomes useful for advanced use cases like calling AI models through an API or building structured JSON-output pipelines.

What is few-shot vs zero-shot prompting?

Zero-shot prompting asks the AI to complete a task with instructions alone and no examples. Few-shot prompting includes one or more examples of the input-output pattern you want before asking for a new one. Few-shot generally produces more consistent formatting and tone.

What is chain-of-thought prompting?

Chain-of-thought prompting asks the AI to work through a problem in visible, step-by-step stages in its answer rather than jumping straight to a final answer. It's especially useful for math, logic, multi-step planning and debugging tasks where the reasoning matters as much as the result.

How long should a good prompt be?

As long as it needs to be to remove ambiguity — often a few sentences to a short paragraph. Length isn't the goal; completeness is. A short, vague prompt usually needs more editing afterward than a slightly longer, specific one.

Should I say "please" and "thank you" to AI?

It's not necessary for the AI to understand your request, but it costs nothing and some users simply prefer the habit. Politeness has no meaningful effect on output quality — clarity, context and structure do.

Can prompt engineering fix AI hallucinations?

It can reduce them but not eliminate them. Asking the AI to cite sources, say "I'm not sure" when uncertain, or stick strictly to provided context all help. But for anything factual and important, verify the claim independently rather than trusting the prompt alone to prevent errors.

What's the best way to get consistent formatting from AI?

Explicitly describe the format you want — headings, bullet points, a table, JSON — rather than assuming the AI will guess correctly. Providing one example of the exact format is the most reliable way to get consistent output across multiple requests.

How do I get an AI to write in my own voice?

Paste a few paragraphs of your own past writing into the prompt and ask the AI to match that tone, sentence length and vocabulary. Reference specific traits — "short sentences, no jargon, occasional humor" — rather than a vague instruction like "sound natural."

What is a system prompt?

A system prompt is a standing instruction that sets the AI's role, tone or rules for an entire conversation or custom assistant, rather than being repeated in every message. Custom GPTs and Claude Projects both let you set this once and reuse it across many conversations.

Do prompts work the same way across ChatGPT, Claude and Gemini?

The core principles — clarity, context, role, format — transfer across all three. Minor adjustments help: Claude rewards longer, well-structured instructions; ChatGPT is comfortable with quick conversational iteration; Gemini performs best when grounded in connected documents or current information.

How do I write prompts for coding tasks?

Specify the programming language, the exact function or file you're working with, any constraints (performance, libraries allowed, existing code style), and paste relevant code directly into the prompt rather than describing it in words.

What is prompt chaining?

Prompt chaining breaks a complex task into a sequence of smaller prompts, where each step's output feeds into the next — for example, research, then outline, then draft, then edit — rather than trying to get a finished result from a single mega-prompt.

Can I reuse the same prompt for different AI models?

Mostly, yes — a well-structured prompt with clear role, context and format usually works reasonably well across ChatGPT, Claude and Gemini. You may need small adjustments since each model has slightly different defaults for tone and verbosity.

How do I stop AI from giving generic answers?

Add specific context the AI can't guess — your actual audience, brand details, constraints, or an example of the style you want. Generic prompts produce generic answers; specific prompts produce specific ones.

What is temperature in AI prompting?

Temperature is a setting (available in some tools and APIs, not always in consumer chat interfaces) that controls how random or creative the output is. Lower temperature gives more predictable, focused answers; higher temperature gives more varied, creative ones.

Is prompt engineering a real job in 2026?

As a standalone job title, dedicated "prompt engineer" roles have narrowed compared to a couple of years ago, since the skill has become an expected part of many existing roles — marketing, content, development and support — rather than a separate specialty.

How do I write prompts that generate JSON or structured data?

Explicitly show the exact JSON structure you want, including field names, in the prompt itself, and ask the model to return only that structure with no extra commentary. Providing a one-example template dramatically improves consistency.

What's the biggest beginner mistake in prompt writing?

Being too vague and expecting the AI to infer missing context. Most disappointing AI output traces back to a prompt that left out the goal, audience or format the person actually had in mind.

How often should I refine a prompt?

Treat the first response as a draft, not a final answer. Most experienced users refine a prompt at least once — tightening the format, adding a missing constraint, or asking for a different tone — before using the output for real work.

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