In lesson 1 we found that prompts fail for three reasons: no role, vague task, no constraints. RTFC turns those fixes into a single, repeatable structure you can run on any task. It stands for Role, Task, Format, Constraints — and once it lives in your head, you'll write strong prompts on autopilot.
What RTFC Stands For
Each letter answers one question the AI needs answered before it can do its best work. Skip a letter and the model fills the gap with an average. Answer all four and you've handed it a real brief.
Role — Who the AI is
Assign a specific role. Not "you are an assistant" but "you are a senior copywriter specialising in B2B SaaS with 10 years of experience." The more specific the role, the more specific the output.
Task — What you need
State the exact deliverable. Not "help me with a proposal" but "write the executive summary section of a website redesign proposal for a mid-size e-commerce brand." Task = deliverable + context.
Format — What it should look like
Bullet points or prose? 200 words or 1000? Table or narrative? Specify it. If you don't, the AI guesses — and guesses average.
Constraints — What to avoid
The most underused part. "Do not use buzzwords." "Keep every sentence under 20 words." "Avoid passive voice." Constraints are what make the output sharp instead of padded.
Before and After — A Full Example
Here is the same job — writing the intro to a client proposal — done two ways. The first is how most people prompt. The second applies RTFC in full.
| Before (no framework) | After (RTFC applied) |
|---|---|
| "Write an intro for my proposal" | "You are a senior business consultant specialising in e-commerce strategy. [Role] Write the opening paragraph of a project proposal for a Shopify store redesign for a fashion brand with 50k monthly visitors. [Task] Format: 3 sentences, each under 25 words. Professional but direct tone. [Format] Do not use the word 'solutions', do not start with 'In today's'. [Constraints]" |
And here is the kind of output the second prompt produces — tight, specific, ready to drop into the document:
Your fashion store already earns 50,000 visits a month, yet the current design quietly loses sales at every step. This proposal lays out a focused Shopify redesign built to convert that existing traffic into revenue. Over the next six weeks, we'll rebuild the pages that matter most — and measure every change against sales, not opinions.
Three sentences, each doing a job, none of them generic. That is the entire difference between a wish and a brief.
Here's the same gap across five everyday freelance tasks — the weak prompt on the left, the RTFC-shaped one on the right:
| Task | Bad prompt | Good (RTFC) prompt |
|---|---|---|
| Client email | "Write a follow-up email" | "Act as a freelance designer. Write a 90-word follow-up chasing overdue feedback. Warm but direct. No 'just checking in'." |
| Blog intro | "Write a blog intro about SEO" | "Act as an SEO writer for small e-commerce owners. Write a 70-word intro for 'Local SEO Basics'. Hook first line. No 'In today's world'." |
| Social post | "Write a LinkedIn post" | "Act as a B2B copywriter. 150-word LinkedIn post announcing a new service. Conversational. No hashtags, no 'excited to'." |
| Summary | "Summarize these notes" | "Act as an analyst. Summarize these notes into 5 bullets, each under 20 words, action items only: [notes]." |
| Proposal | "Help with my proposal" | "Act as a consultant. Write the scope section for a [project] proposal. Numbered phases with deliverables. Flag unknowns." |
Apply RTFC to Your Next 3 Tasks
Reading the framework does nothing. Running it three times makes it muscle memory. Here is the fastest way to internalise it this week.
Pick one task you do every week
A recurring email, a content piece, a summary. Anything you've used AI for and got a meh result.
Write the R, T, F, C separately first
Don't combine them yet. Write each on its own line. This forces you to think through each component.
Combine and test
Paste them into ChatGPT or Claude. Compare the output to your previous attempt. The difference is usually immediate.
The Framework Is The Habit
You won't use RTFC consciously forever. After 20 prompts it becomes automatic — you'll just think in role/task/format/constraints without the acronym.
RTFC is not a template to fill in. It's a thinking habit. Role tells AI who it is. Task tells it what to produce. Format tells it how to structure it. Constraints tell it what to cut.
Continue Learning
Next in this course: Few-Shot and Chain-of-Thought Patterns
Also relevant: Prompt Templates for Freelance Work — see RTFC packaged into ready-to-use prompts.