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Cornell notes to print from a lecture

Turns docs, notes or a course into a dense one-page reference card: commands, shortcuts and formulas in grouped columns.
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Yours. Download it, then add it to your agent.
Turns documentation, notes or a course into a dense cheat sheet: short sections in two to four columns of commands, shortcuts, formulas, code and one-line explanations. Saved as a print-ready PDF (A4 or Letter, portrait or landscape) and a PNG preview. Sections never break across a column, and code keeps its spacing. Free to run: no API key, only Node and Chrome. Use when someone wants a cheat sheet, a quick reference card, a one-page summary of commands or shortcuts, or a formula sheet to print or pin up.
By RecaplyUpdated 11 Nov
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Cornell notes to print from a lecture
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Book summary sheet with key ideas
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Certificates to print for a list
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Printable chore rota with a name in each box
You say
Make a one-page cheat sheet of the statistics formulas in my notes for the exam
It said back
I made the cheat sheet. It fits on one A4 page and every formula from stats-notes.md is on it, worded as in your notes.
cheat-sheet/sheet.pdfcheat-sheet/sheet.pngWhat it did in run 1
mean = sum of values / n", "Average of the values"], ["median", "Middle value when sorted"], {"note": "n even: average the two middle ones."}, ["mode", "Most common value"] ] }, { "title": "Spread", "rows": [ ["range = max - min", "Biggest minus smallest"], ["s^2 = sum((x - mean)^2) / (n - 1)", "Variance (sample)"], ["s = sqrt(variance)", "Standard deviation"] ] }, { "title": "Position", "rows": [ ["z = (x - mean) / s", "z-score of a value x"] ] }, { "title": "IQR and outliers", "rows": [ ["IQR = Q3 - Q1", "Spread of the middle half"], ["x < Q1 - 1.5 IQR", "Outlier (low)"], ["x > Q3 + 1.5 IQR", "Outlier (high)"], {"note": "Learn this one: the formula booklet does NOT include the IQR outlier rule."} ] }, { "title": "Probability", "rows": [ ["P(A or B) = P(A) + P(B) - P(A and B)", "Either A or B"], ["P(A and B) = P(A) x P(B)", "Both, only if independent"], ["P(A|B) = P(A and B) / P(B)", "Conditional: A given B"] ] }, { "title": "Correlation", "rows": [ ["r between -1 and 1", "Strength of linear link"], ["r near 0", "No linear link"] ] } ] } EOF node ../.claude/skills/cheat-sheet/scripts/sheet.mjs sheet.jsonNo. Cheat Sheet costs $9.99 once and stays in your Recaply account, or it comes with the Recaply plan ($19.99 a month), which opens every premium skill and prompt.
Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode.
A ZIP of the whole skill folder (60 KB): the SKILL.md your agent follows and its 10 other files, the references, templates and scripts it uses. You download it from this page whenever you need it, and install it in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode. The Recaply plan opens it too, with every other premium skill and prompt.
Buy it, then download the ZIP from this page. For Claude Code, unzip it into .claude/skills/ in your project. For Codex, Cursor and Gemini CLI, unzip it and run npx skills add ./cheat-sheet with your agent's flag.
A print-ready PDF on A4 or Letter, and a PNG preview. Sections never break across a column, and code keeps its spacing. Free to run: no key and no cost.
Node 20+ and Chrome, and no API key. Each use costs nothing beyond your agent.
11 files, about 44,960 tokens in all. The SKILL.md is about 2,079 tokens, and your agent reads it only when the job fits.
Our 1 runs took 31 s to 31 s and $0.22 to $0.22 of API use each, in Claude Code with claude-opus-5-5. On a Claude plan, a run counts toward your usage instead.
Type /cheat-sheet first to make sure it loads. Without it, Claude Code may judge a small job simple enough to do without the skill.