Prompt engineering, made effortless

Say it roughly. We make it expert.

Press Enter — our brain writes the full, detailed answer

© 2026 PromptCorrectly · prompt engineering, made effortless
WHAT GPT-5 ACTUALLY CHANGED

GPT-5 launched in 2025. Here's what actually changed — and what didn't.

WHAT CHANGED
Model capability at the ceiling
Reasoning on complex tasks improved. Creative range expanded. Tool use became more reliable. The ceiling rose.
WHAT DIDN'T CHANGE
The floor for unstructured prompts
Bad prompts still get bad outputs. The model is more capable — but that capability requires specification to activate. The gap between ceiling and floor got bigger.
A more capable model with a bad prompt is still a bad output. Structure is still the unlock.
THE AI EDUCATION MARKET IS EXPLODING

The AI education market is projected to reach $20B by 2027.

Verified Market Research 2025 · AI in Education market forecast
2023 market
AI education tools, courses, and platforms combined
$4B
2024 market
Post-ChatGPT acceleration · enterprise training surge
$8B
2025 estimate
Structured prompting education driving growth
$13B
2027 forecast
Projected with enterprise AI training mandates
$20B
What's driving the growth — and is the education being produced actually effective?
WHAT YOU ACTUALLY PAY — TOTAL

Here's the full cost comparison — including what other tools don't tell you.

PROMPT-ENHANCEMENT SUBSCRIPTION
€25–50/mo for output, not skill
Monthly cost for a tool that improves prompts for you. Skill development: zero. Cancel: back to your original capability.
PROMPTCORRECTLY + BYOK
From €9/mo + €3–5 API for skill + output
Platform cost plus your own API access at cost price. Skill develops permanently. Cancel: keep the skill.
You pay for capability you keep, or for a service you rent.
43%
avg. accuracy gain with Chain-of-Thought prompts
10x
productivity increase in 2025 enterprise studies
3,750+
expert prompts & skills in the library
2026
best practices, always up to date
★ Today's featured expert skillDaily pick

One new research-backed skill template, every day.

DataAdvanced

Data Story Analyst

Transform raw data into narratives with clear insights, visualizations, and recommendations.

Skill template · preview
[ROLE]
You are a senior data storyteller embedded in a product analytics team.
Your job is to turn raw numbers into a 90-second narrative an executive will act on.

[CONTEXT]
{{dataset}} — schema, time window, and known anomalies.

[METHOD]

…
Research hub · 100% free access

Backed by the latest science.

Every technique in our library is grounded in peer-reviewed research. Here's the evidence.

2024Sahoo et al. · arXiv 2402.07927

A systematic survey of prompt engineering in large language models

Structured multi-step prompting increases accuracy by up to 43% across reasoning tasks.

2024University of Maryland · June 2024

The Prompt Report — 58 prompting techniques benchmarked

Few-shot + Chain-of-Thought combined is the single highest-performing technique in 2024.

2025Chen et al. · ScienceDirect

Unleashing the potential of prompt engineering for large language models

Domain-specific role prompts reduce hallucinations by 31% in professional contexts.

2025medRxiv · April 2025

Patient education and AI readability across pediatric specialties

Properly structured prompts improved medical content readability scores by 2.4 grade levels.

View all 32 papers →
✦ Editorial

Latest insights & guides.

Practical, no-fluff articles on prompting AI correctly — free to read, grounded in cognitive science.

Fundamentals

How to Prompt AI Correctly: The Complete 2026 Guide

Prompt AI correctly by specifying role, context, task, constraints, and output. A practical 2026 guide with before/after examples and named techniques.

11 min readRead →
Fundamentals

The 5-Part Prompt Structure That Fixes 90% of Bad Outputs

Role, Context, Task, Constraints, Output: the 5-part prompt structure that fixes vague AI answers. With a full worked rewrite and a copy-paste template.

10 min readRead →
Techniques

Role Prompting: How to Make AI Think Like an Expert

Role prompting assigns the model an expert persona so it draws on the right vocabulary, standards, and priorities. Learn to do it well, with examples.

8 min readRead →
Techniques

Chain-of-Thought Prompting: How and When to Use It

When chain-of-thought prompting helps, when it hurts, and how to make the model reason step by step then hand you one clean answer.

9 min readRead →
Techniques

Few-Shot Prompting: Teaching AI by Example

Few-shot prompting shows the model 2–5 input/output examples so it copies your format and standard. How to pick, format, and count your shots.

8 min readRead →
Techniques

Self-Critique Prompting: Get AI to Improve Its Own Output

Self-critique prompting makes AI grade its own draft against named criteria, then revise. The generate-critique-revise loop, with before/after prompts.

9 min readRead →
Read all articles →
The Studio

A canvas for prompts — not a chat window.

Drag blocks. Wire them up. Run, iterate, version, ship. Every prompt becomes an asset your team can actually maintain.

PromptCorrectly
Untitled Canvasauto-saved · 12s ago
+ NewSaveLoadShare✦ Auto-Generate▷ Run Selected▶ Run · 1 call⬇ Export⛶ Focus
Add Node
GoalRoleContextInstructionChain-of-Thought{ }Output FormatSelf-CritiqueAgent LoopNote
Goal1
Role1
Context3
Files2
Examples4
Constrain…2
Instruction
{ }Output Format
Output
MAP100%
100%+
Idle · ready to runnodes 9edges 8done 0/9
tokens in 412tokens out 850this run 1 AI callour brainyour own key optional
Open Studio →
Cortex

Rewire how you think — before you prompt.

Twelve hand-crafted courses (5 free + 7 paid), taught by She — your AI guide. Each lesson is 4 minutes of theory, one A/B exercise, one prompt you'll actually use this week.

🧠
Course 01 · In Progress
Mindset 101 — Think before you prompt
3 of 6 lessons
50%
She
She · your AI guide
Lesson 2 · The Architect mindset
Most people prompt the model. Prompters tell it what they want. Architects tell it how to think — and then let it surprise them.
▶ play audio · 38s·full transcript
Exercise · Pick One
Which prompt will produce a better answer?
A

Write me something about climate change.

B

As a science journalist, explain how ocean acidification affects coral reefs in 3 short paragraphs, using one striking metaphor and one data point.

Correct — B gives the model a role, a topic, a structure, and constraints.
Practice · 90s
Now write your own.

Structure: Role + Topic + Constraints + Format.

As a senior product designer, review this onboarding flow, flag friction in the first 90 seconds, output a bulleted list with severity
4 of 4 ingredients · strong specCheck my answer →
🧠
Resume
Prompting Mindset 101
The 90% of prompting that happens before you type a word.
Most people lose 80% of their prompt's power before they type a single word.
2 of 6 · resume
Free
Basic Chain-of-Thought
Force the model to think out loud. +43% accuracy on reasoning tasks.
Force the model to think out loud.
● 6 lessons · 10 min
👤
Free
Simple Role Prompting
The fastest one-line upgrade you can make to any prompt.
The fastest one-line upgrade you can make to any prompt.
● 6 lessons · 8 min
Free
Output Format Basics
Stop fighting messy outputs — control format with five words.
Stop fighting messy outputs — control format with five words.
● 6 lessons · 9 min
Free
Clarity Over Cleverness
The counter-intuitive rule that breaks most prompts.
The counter-intuitive rule that breaks most prompts.
● 6 lessons · 7 min
Free
Prompt Anatomy 101
The 5-part canvas: Role · Context · Task · Format · Constraints. Every elite prompt has all five.
Most prompts fail because one ingredient is missing — and the writer doesn't know which one.
● 6 lessons · 6 min
Free
Delimiters & Tags
Why <context>…</context> tags beat quotes. The tokenizer-level reason your structured prompts get ignored.
Claude was trained on XML-tagged documents.
● 6 lessons · 5 min
Free
Tone & Audience
Why "write for a CFO" beats "write professionally" — audience-aware prompting in one sentence.
Why "write for a CFO" beats "write professionally" — audience-aware prompting in one sentence.
● 6 lessons · 5 min
Free
Single-shot vs Iteration
When to one-shot. When to chain. The decision rule pros run in their head before every prompt.
When to one-shot.
● 6 lessons · 7 min
Free
The 3-Line Rule
Compress any prompt to three lines: Who · What · How. If it doesn't fit, you don't understand the task.
Compress any prompt to three lines: Who · What · How.
● 6 lessons · 5 min
Free
Before You Prompt
Thirty seconds of pre-flight saves an hour of iteration. Four questions you answer before typing a word.
Thirty seconds of pre-flight saves an hour of iteration.
● 6 lessons · 6 min
Free
Negative Instructions
"NEVER do X" is sometimes the most powerful line in the prompt. Here's when to use them — and where they backfire.
"NEVER do X" is sometimes the most powerful line in the prompt.
● 6 lessons · 6 min
Free
Prompt Debugging 101
Read bad outputs as data. A 3-question diagnostic that finds the broken field in any prompt.
Read bad outputs as data.
● 6 lessons · 7 min
€6
Self-Consistency Voting
Run the same prompt 3-5 times → take the majority answer. +12-18% accuracy on reasoning tasks (Wang et al. 2022).
One prompt, one answer = a guess.
● 6 lessons · 14 min
€7
Few-Shot Pattern Recognition
Show 2-4 examples → the model maps the relational structure, not the surface details (Chase & Simon's chess masters, applied).
Chess masters don't memorize moves — they recognize patterns.
● 6 lessons · 16 min
€5
Constraint Calibration
Too few constraints → drift. Too many → brittle. The 5-constraint sweet spot and how to find it.
Too few constraints → drift.
● 6 lessons · 12 min
€6
Multi-turn Refinement
Conversation as compute. Use 3-5 turn loops when the goal is discovered, not pre-specified.
Conversation as compute.
● 6 lessons · 13 min
€7
Meta-Prompting
Ask the model to write its own prompt. The technique that compresses 4 hours of prompt-engineering into 4 minutes.
Ask the model to write its own prompt.
● 6 lessons · 14 min
€8
Prompt Evaluation Rubrics
Build your own grader. The Chip-Huyen-style eval rubric that catches drift before it ships.
Build your own grader.
● 6 lessons · 18 min
🧬
€5
Advanced Chain-of-Thought Mastery
Stack CoT with role + self-critique for 60%+ accuracy on multi-evidence reasoning.
Naive Chain-of-Thought looks impressive.
● 6 lessons · 22 min
🎭
€4
Role & Persona Prompting That Actually Works
Multi-dimensional personas that shape voice, taste, and decision-making — not a frankenstein average of 10,000 examples.
"Write like a CEO" gives you a frankenstein average of every CEO the model has ever read.
● 6 lessons · 16 min
{}
€6
Output Formatting Secrets
Schema enforcement, prefilling, XML tags — the production tricks vendors don't teach.
"Output the result as JSON" sounds like a constraint.
● 6 lessons · 18 min
🛡
€7
Stop Hallucinations Forever
Production-grade hallucination prevention via citation-or-refuse + admit-uncertainty + claim triage.
Models don't hallucinate because they're lying.
● 6 lessons · 16 min
€9
Building Simple Agents (ReAct)
Thought → Action → Observation — the foundation of every modern agent, with halt conditions that don't burn $500.
Bad agent prompts are the most expensive prompts you'll ever write.
● 6 lessons · 24 min
€5
Pre-Project Thinking Framework
The 30-minute setup that 10× any AI project — before you write a line of code.
Most AI projects fail in the first 30 minutes.
● 6 lessons · 16 min
€8
Tree-of-Thoughts for Planning
When linear reasoning fails — enumerate branches, score independently, surface trade-offs, recommend a hybrid path.
CoT picks one path and rides it — even when 3 better paths existed.
● 6 lessons · 22 min
€9
Legal Precision Architect
IRAC + 5 C's: the framework that turns hallucination-prone research into committee-ready memos.
The legal field doesn't punish prompts that fail — it punishes prompts that fail confidently.
● 6 lessons · 22 min
€7
SaaS Velocity Engineer
RICE scoring · churn-proof CS emails · PRDs that ship. The SaaS PM playbook in prompt form.
RICE scoring · churn-proof CS emails · PRDs that ship.
● 6 lessons · 18 min
€8
Founder Pitch Architect
10-slide YC-style decks · investor Q&A prep · MVP roadmap loops — the founder's prompt stack.
10-slide YC-style decks · investor Q&A prep · MVP roadmap loops — the founder's prompt stack.
● 6 lessons · 20 min
€7
Marketing Campaign Director
Brand voice doc + multi-channel campaign engineering + ROI projection — the agency director's playbook.
Brand voice doc + multi-channel campaign engineering + ROI projection — the agency director's playbook.
● 6 lessons · 18 min
€6
Viral Content Alchemist
8-word scroll-stop hooks · platform-specific scripts · viral pattern recognition from 3 reference videos.
8-word scroll-stop hooks · platform-specific scripts · viral pattern recognition from 3 reference videos.
● 6 lessons · 16 min
€6
Clip Architect
Turn 1 long video into 30+ platform-optimized clips. The OpusClip prompting layer.
Turn 1 long video into 30+ platform-optimized clips.
● 6 lessons · 15 min
€6
Internalization Drills
5-minute daily reps that wire prompt anatomy into reflex. Designed for the commute.
The goal isn't to know the technique — it's to use it without remembering you're using it.
● 6 lessons · 12 min
€8
Prompt Literacy Audit
Score yourself against the Deloitte 4-flavor framework. Discover which of your gaps is the bottleneck.
Deloitte's 2024 AI skills gap research found 4 distinct gap flavors.
● 6 lessons · 24 min
€9
Our Goal Is You Don't Need Us
Graduate the platform. The capstone that wires every technique into a single mental model.
Our goal is for you to not need us.
● 6 lessons · 26 min
€10
The Architect Mindset
The final synthesis. One mental model that fits in 60 seconds — and changes how you work with AI for life.
Most people prompt the model.
● 6 lessons · 28 min
How it works

Five steps. No vendor lock-in. Your keys, your data.

Drop blocks, wire them up, paste your API key, run. Export anywhere.

01

Drop nodes

Drag Goal, Role, Context, Instruction, Output Format from the sidebar onto the canvas.

02

Wire logic

Connect blocks with a line. Add Skills like Chain-of-Thought, Self-Critique, JSON Enforcer.

03

Bring your key

Paste your Anthropic or OpenAI API key once. We never store it — it lives in your browser.

04

Run & stream

Hit Run. Watch tokens stream into Output in real time. Iterate. Diff against earlier runs.

05

Export anywhere

Copy to clipboard. Push to Notion. Generate Python. Save as a versioned prompt for your team.

The Library

3,750+ expert prompts, ready to run.

Curated, versioned, peer-reviewed. Copy one, or open it straight into your Studio. Browse a free starter set — unlock the full library with Bring Your Own Key.

Search 3,750+ prompts — try "investor update", "SQL", "tone of voice"…⌘ K
All 3,750EngineeringDesignGTMDataWritingResearchOpsSort · Most copied ▾
EngineeringClaude
Advanced
Staff-Engineer Code Review

Reviews a PR like a senior who optimizes for the next reader, not style nits.

Open full page ↗
EngineeringClaude
Advanced
Architecture Decision Record (ADR)

Write an ADR that future-you will still understand in 18 months.

Open full page ↗
EngineeringClaude
Advanced
Blameless Postmortem

Outage report that reduces fear of speaking up and produces real action items.

Open full page ↗
EngineeringClaude
Advanced
Bug Repro — Minimal Failing Case

Turn a vague bug report into a clean repro: steps, expected vs actual, environment.

Open full page ↗
EngineeringClaude
Advanced
Tech Debt Prioritization

Rank a backlog by leverage × pain × confidence. Output an ordered ranking.

Open full page ↗
GTMClaude
Advanced
Cold Outbound — Peer-to-Peer

Reach a busy founder without AI-slop tone. Four lines, one ask, no hedging.

Open full page ↗
Founder VoiceClaude
Advanced
Calm + Concrete Investor Update

Monthly update that earns trust by being honest about misses.

Open full page ↗
GTMClaude
Advanced
Press Release — YC Tone

Announce a B2B SaaS launch in the YC style. Sharp lede, two metrics, one founder quote.

Open full page ↗
SalesClaude
Advanced
Sales Discovery — 7 Questions That Surface Pain

Ask the questions that surface pain, not features. Seven questions, no leading the witness.

Open full page ↗
MarketingClaude
Advanced
Cold Landing Page Rewrite

Headline earns the scroll. Three benefits with proof. One CTA. No hero-image lies.

Open full page ↗
GTMClaude
Advanced
SaaS Pricing — First Principles

Set pricing for a new B2B SaaS. Three tiers, unit economics, anchor + decoy logic.

Open full page ↗
GTMClaude
Advanced
Positioning — April Dunford Method

Five-step positioning canvas: competitive alternatives, unique attributes, value, ICP, market.

Open full page ↗
Browse all 3,750 prompts →
Privacy by default

Your keys + your data never leave your browser.

🔑
Bring your own key
Paste your Anthropic / OpenAI / Grok key once on /settings. It writes to your browser's localStorage. Our server forwards it per-request and never persists, logs, or shares it. Audit the network tab to verify.
💻
Client-side execution
Every Run streams from the provider directly to your browser through our zero-log proxy. No middleware reads your prompts. No analytics tracks your outputs.
📦
Own everything
Your canvases save to localStorage now, your own Hetzner-hosted Postgres next. Open-source canvas component on GitHub (MIT). Export to JSON / YAML / Mermaid / LangGraph / executable JS any time.
Simple pricing · Free to start

Instant start — free, in 30 seconds.

Sign up free and run on our brain instantly — 30 free AI calls, no card, no key needed. When you're ready, €9/mo plus your own AI key unlocks the full library and unlimited runs (you pay only your own API usage, ≈ €3–5/month typical).

Free plan
Open now · no card needed
FREE
30 free AI calls + the starter library
no card · no key needed · works on the landing brain + Studio

Then pick a paid plan when you're ready — €9/mo — Bring Your Own Key. Single paid plan. Cancel anytime.

Claim my spot
228 of 369 spots filled · 141 left
  • Full Studio · Cortex · Library — all unlocked the moment you connect your key
  • Unlimited runs on your own key — you pay only your API usage (≈ €3–5/mo typical) and stay in control
  • Founding-contributor badge on your library profile, forever
  • Your key never leaves your browser — we never store it
  • Upload a prompt → if it passes our originality + quality filter, it joins the public library → +10 pts
  • Upload a reusable Skill → +30 pts
  • Private uploads stay in your library only · 0 points · zero pressure to publish
  • Cross a milestone and you'll unlock a Hall-of-Founders badge for your library profile
Reward Milestones
Level 1 · 570 pts
Contributor badge
≈ 30 approved prompts + 9 approved skills
Level 2 · 1,500 pts
Featured contributor badge
≈ 60 prompts + 30 skills
Level 3 · 3,000 pts
Hall of Founders badge
≈ 150 prompts + 45 skills · Hall of Founders unlocked
Level 4 · 6,000+ pts
Legend status
≈ 300+ prompts + 90 skills · permanent Legend badge
1 approved prompt = 10 pts · 1 approved skill = 30 pts · points never expire
When you're ready to upgrade
Paid plan — €9/mo — Bring Your Own Key. Single paid plan. Pay by card, cancel anytime. Library publishing stays open to all users.