EngineeringFree to read
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Reviews a PR like a senior who optimizes for the next reader, not style nits.
Prompt library · Packs · Courses · Tailor
The prompt & skill library for the AI you already use.
4,700+ structured prompts and 860+ skills, organised by field. Read what each one does, fill in your details, and paste it into ChatGPT, Claude or Gemini.
No prompt yet? Pick one from the library or a pack for your trade.
4,700+ structured prompts · 860+ skills
Browse the libraryOrganised by field, written the same way every time — so you can read what a prompt will do, fill in your details, and take it to the AI you already use. 36 short courses teach the pattern behind them.
GTMFree to read
Cold Outbound — Peer-to-Peer
Reach a busy founder without AI-slop tone. Four lines, one ask, no hedging.
Founder VoiceFree to read
Calm + Concrete Investor Update
Monthly update that earns trust by being honest about misses.
How it works
- FindSearch by field or task. Every prompt has the same parts — role, context, task, constraints, output (the RCTCO prompt framework) — so you can see what it will do before you use it.
- FinishPress “Tailor to my brand”: fill the blanks, describe your business once, and the Studiorewrites it for your offer, audience and voice.
- UseCopy it, or download a ready .md file, into ChatGPT, Claude, Gemini, a custom GPT or Claude Code. The courses — and the guide on how to prompt AI — teach you to write the next one yourself.
36 short courses · 13 free
All coursesPrompting Mindset 101The 90% of prompting that happens before you type a word.Basic Chain-of-ThoughtForce the model to think out loud — the move that took PaLM 540B from 18% to 57% on grade-school math.Simple Role PromptingThe fastest one-line upgrade you can make to any prompt.Self-Consistency VotingRun the same prompt 3-5 times → take the majority answer. +12-18% accuracy on reasoning tasks (Wang et al. 2022).Few-Shot Pattern RecognitionShow 2-4 examples → the model maps the relational structure, not the surface details (Chase & Simon's chess masters, applied).Constraint CalibrationToo few constraints → drift. Too many → brittle. The 5-constraint sweet spot and how to find it.
Why structure works
32 papers, summarisedA systematic survey of prompt engineering in large language modelsA map of the field: 29 prompting techniques organised by what they are used for, with the models and datasets each was tested on.
The Prompt Report — 58 prompting techniques benchmarkedFew-shot + Chain-of-Thought combined is the single highest-performing technique in 2024.
Unleashing the potential of prompt engineering for large language modelsDomain-specific role prompts reduce hallucinations by 31% in professional contexts.
Pricing
The library and the courses. Tailoring runs included.
Titles and opening lines are public; full text is on a plan. You take the prompts to the AI you already use — no API key, nothing to install. Cancel anytime.
Free
Free
Browse everything. Open the free set.
- Every title, description and opening lines in the library
- The free prompt set, a starter skill per category, free samples in every field
- Foundation + Quick-Win courses
- 30 tailoring runs a month in the Studio
Library
€15 / mo
For people who came for the prompts and skills.
- Full text of every prompt and skill
- Download any of them as a ready .md file
- Finish prompts in the Studio with your own project context
- 80 tailoring runs a month
Most popular
Pro
€29 / mo
The library and every course.
- Everything in Library
- All courses, including the Pro tracks
- 400 tailoring runs a month, longer prompts and answers
- Open up to 120 different items a day
Prices in EUR, VAT included. Team plan for 3 seats is on the pricing page.
Questions
What is PromptCorrectly?
A library of structured prompts and skills for ChatGPT, Claude and Gemini, plus short courses that teach why they work. You find a prompt, fill in your details, and take it to the AI you already use.
Do I need an API key or to install anything?
No. Prompts are text: copy one, or download it as a ready .md file, and paste it into your AI. The Studio's tailoring runs work in the browser with nothing to set up.
What is free?
Every title, description and opening lines are public. A free account opens the free prompt set, a starter skill in each category, the foundation courses and 30 tailoring runs a month. Plans open everything else.
What does the Studio do?
It tailors a prompt to your business: paste any prompt or open one from the library, describe your brand once, and it comes back rewritten for your offer, audience and voice — ready for the AI you already use.
Can I cancel?
Yes, any time from your account. You keep access until the end of the period you paid for.