The engine reads your prompt, picks 3 of the 120 tested codes that fix what is weak about it, and hands you a rewrite that is measurably better in the same reply. No copy-pasting from a cheat sheet, no guessing which prefix does what.
✓3 codes chosen for the exact shape of your prompt
✓Rewrite ready to paste into Claude in one click
✓Tooltip on every code so you learn why it was picked
Free forever tier. Digital product, all sales final. If it does not land for you, email team@clskills.in and we will add you to the full Skills Library as a goodwill gesture.
The engine picks 3 codes tuned to what you pasted.0 / 4,000
Proof by demonstration
Four prompts, four rewrites.
Click any example to load it into the compiler up top and see how it transforms. Every code chip is hoverable, every rewrite is copyable.
The should-I question
Your prompt
Should I add a referral program to my SaaS that pays 30% commission for every new buyer?
Compiled
/skepticL99/nofilter
/skeptic L99 /nofilter
Should I add a referral program to my SaaS that pays 30% commission for every new buyer?
Claude's response, first 100 tokens
Before you build this, the question you should be asking is different. A 30% referral commission works only when your CAC payback is shorter than 3 months and your gross margin is above 70%. If either fails, the program eats the margin it was meant to grow. Tell me your CAC and margin and I will tell you whether referrals are the right lever, or whether the leak is elsewhere.
The writing task
Your prompt
Rewrite my LinkedIn post about launching our new product so it sounds more human.
Compiled
/ghost/mirrorL99
/ghost /mirror L99
Rewrite my LinkedIn post about launching our new product so it sounds more human.
Claude's response, first 100 tokens
Give me two or three of your recent posts to mirror, and the draft you want rewritten. I will match your sentence length, your specific filler words, whether you sign off or not, and whether you use commas or line breaks between clauses. The output will read as if you typed it at 11pm, not as if an AI polished it at noon.
The strategy question
Your prompt
What is the best pricing strategy for a $19 one-time product with a small existing audience?
Compiled
INVERT/blindspotsCHAINLOGIC
INVERT /blindspots CHAINLOGIC
What is the best pricing strategy for a $19 one-time product with a small existing audience?
Claude's response, first 100 tokens
Working backwards from failure. The $19 one-time product with a small audience dies when either, one, the audience burns out after two launches and there is no recurring revenue to replace it, or two, the price is low enough that the buyer does not value the product enough to actually use it. Before pricing, the real question is whether one-time is the right shape at all. Here is the reasoning step by step.
The debugging ask
Your prompt
My Next.js build is failing with a hydration error on the homepage. Help me fix it.
Compiled
CHAINLOGIC/unpack/blindspots
CHAINLOGIC /unpack /blindspots
My Next.js build is failing with a hydration error on the homepage. Help me fix it.
Claude's response, first 100 tokens
Hydration errors have four common causes, and the stack trace usually points at the symptom, not the root. Before rewriting anything, we walk each of the four causes against your specific homepage. One, server output that differs from client output. Two, a Date, Math.random, or window reference at module scope. Three, a browser extension that mutates the DOM before hydration. Four, a mismatched HTML tree from a wrapping element with the wrong tag.
How the engine works.
Four steps, no magic. The reasoning behind every pick is visible on Full.
1
You paste
Drop in your prompt as you would normally type it. No format rules, no length limits under 4,000 characters.
2
The engine reads
It reads the shape of your prompt. Is it a should-I question, a writing task, a debugging ask, a strategy call?
3
3 codes get picked
The three codes that most improve reasoning for that shape get prepended. Order matters, and the engine handles it.
4
You paste to Claude
Copy the compiled prompt, paste to Claude, get an answer that is measurably less generic and less hedged.
Free forever, Full when it clicks.
The rewrite is the same on both tiers. Full unlocks the volume, the reasoning, and the full code library.
It reads your prompt for shape (question type, task type, hidden assumptions), matches that shape against the tested library of 120 codes, and returns the three that most improve reasoning quality for that shape. The Full tier shows you the exact reasoning behind each pick.
Why only three codes and not more?
Testing across hundreds of prompts, three is the sweet spot. Two is not enough leverage. Four or more starts fighting itself, and Claude begins ignoring the later ones. Three codes with the right ordering beats seven codes stacked.
Does the free tier limit the quality of the rewrite?
No. Free and Full return the same rewrite. Free is capped at 3 rewrites per day and hides the reasoning behind the picks. Full unlocks unlimited rewrites, the why-these-codes analysis, prompt history, and access to all 120 codes for manual composition.
Where do the 120 codes come from?
The Claude Code Cheat Sheet, tested over three months of daily use. Every code has a before-and-after, a when-not-to-use warning, and a classification tag. The engine draws from that same library.
Can I use this with ChatGPT or Gemini?
The codes were tested on Claude. Some carry across (INVERT, OODA, CHAINLOGIC) because they are reasoning frames, not model tricks. Others (like L99 and ULTRATHINK) are Claude-specific and will not do the same thing elsewhere.
Stop prompting. Compile.
Three rewrites free, every day. Unlimited on Full.
Free forever tier. Digital product, all sales final. If it does not land for you, email team@clskills.in and we will add you to the full Skills Library as a goodwill gesture.