Most people use Claude (or any AI) like a search engine on steroids: they ask a short question and expect a magic answer. The problem is that a vague question generates a generic response.
After months of intensive use, I discovered that one simple structural change transforms the quality of the output completely. I call it the "Role + Context + Task + Format" framework (RCTF).
The problem with normal prompts
Typical prompt: "Write me an analysis of the electric vehicle market."
What you get: a generic 500-word text you could find in any internet article. Correct but shallow information, no angle, no depth.
The RCTF framework
Improved prompt:
"Act as a senior automotive industry analyst with 15 years of experience in transport electrification [ROLE]. Context: I work at an EV charging infrastructure company in the North American market. Our main clients are commercial fleets and public transit operators [CONTEXT]. Task: analyze the three most important trends in the electric vehicle market for 2026 that directly impact demand for DC fast charging infrastructure [TASK]. For each trend, include: what's happening, why it matters for our business, and what concrete action we should take. Use specific data when possible. Format: maximum 800 words, professional but direct tone [FORMAT]."
The difference is massive. With the second prompt you get an analysis that reads like it was written by someone who knows your industry, with relevant data and actionable recommendations.
Why it works
Role: You give Claude an "expert persona" that filters the entire response through that lens. It's not the same when "a generic assistant" responds versus "a senior analyst with 15 years in the sector."
Context: Claude knows nothing about you or your situation. The more context you provide, the more specific and useful the response. Your industry, your role, your audience, your constraints.
Task: Instead of asking for something broad ("analyze the market"), you ask for something specific ("the three trends impacting DC fast charging demand"). This eliminates filler and forces high-density responses.
Format: You tell it exactly how you want the output. Length, tone, structure. Without this, Claude decides for you and rarely gets it right.
5 RCTF prompts ready to copy
Prompt for professional emails: "Act as an expert corporate communicator. Context: I need to send an email to [who] about [topic]. The tone should be [professional/casual/urgent]. Task: draft the complete email including subject line. Format: maximum 150 words, direct, no filler phrases."
Prompt for summarizing documents: "Act as a business analyst. Context: I'm going to paste you a [type] document. Task: extract the 5 most important points and actions that require my attention. Format: numbered list, maximum one sentence per point, mark with [URGENT] anything that needs immediate action."
Prompt for preparing meetings: "Act as a business strategist. Context: I have a meeting with [who] about [topic]. My goal is [what I want to achieve]. Task: give me a meeting script with key points to cover, possible objections, and how to respond to them. Format: agenda structure with estimated times."
Prompt for learning something new: "Act as an expert teacher in [topic]. Context: I'm at [your level] in this topic and I work in [sector]. Task: explain [concept] in a way I can apply it at work this same week. Format: start with a simple analogy, then go deeper, and end with a practical example from my industry."
Prompt for making decisions: "Act as a senior strategy consultant. Context: I'm deciding between [option A] and [option B] for [situation]. My priorities are [list of priorities]. Task: analyze both options with pros, cons, and risks. Give me your clear and justified recommendation. Format: comparison table + final recommendation paragraph."
Have a specific use case where you want to apply this framework? Subscribe and reply. I'll help you build the perfect prompt.