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Agent skill

Feynman Explainer

by mohitagw15856 in mohitagw15856/pm-claude-skills

Learn something deeply by trying to explain it simply — the Feynman technique — surfacing exactly the gaps where your understanding is fake.

MITAuto-check passedWriting & Content

Install Feynman Explainer

skills CLI
$ npx skills add mohitagw15856/pm-claude-skills --skill feynman-explainer -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mohitagw15856/pm-claude-skills feynman-explainer --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/feynman-explainer .claude/skills/feynman-explainer && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
feynman-explainer
GitHub stars
1.4k
Token cost
~1k tokens
SKILL.md length
510 words
Files
1
Skills in repo
1,322
Repo updated
First seen
Licence
MIT

At a glance

Learn something deeply by trying to explain it simply — the Feynman technique — surfacing exactly the gaps where your understanding is fake.

  • Works in 5 steps: Explain it plainly. Have the person… → Hunt the vagueness. Where the… → Name the real gaps. Convert the fuzzy… → …
  • Asked help me really understand X
  • SKILL.md covers What This Skill Produces, Required Inputs, Framework: Explain Simply,… and Output Format, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Feynman Explainer is an agent skill from mohitagw15856/pm-claude-skills. Learn something deeply by trying to explain it simply — the Feynman technique — surfacing exactly the gaps where your understanding is fake. Use when asked help me really understand X, explain this back to check my understanding, use the Feynman technique on, or do I actually get this. Produces a prompt to explain the concept in plain language yourself, a check that flags where your explanation went vague, hand-wavy, or jargon-hid a gap, the specific things you don't actually understand yet, and how to close each…

Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Writing & Content, covering Plain language and style rules. The repository describes itself as: 1255 professional Agent Skills for Claude, ChatGPT, Gemini, Cursor & Codex — PRDs, postmortems, leases, medical bills, layoffs, go-bags, new countries. Plain markdown, MIT, in… The licence is MIT.

When your agent uses it

  • Asked help me really understand X
  • Explain this back to check my understanding
  • Use the Feynman technique on
  • Do I actually get this

Example prompts

  • “t actually understand yet, and how to close each — because if you can”
  • “/feynman-explainer”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Explain it plainly. Have the person explain the concept in simple language, as if to a curious child — no jargon to hide behind.
  2. Hunt the vagueness. Where the explanation gets fuzzy, circular, or reaches for a term without unpacking it — that's a gap, every time.
  3. Name the real gaps. Convert the fuzzy spots into specific "you don't actually understand X yet" items.
  4. Fill and re-explain. For each gap, point to what to relearn, then re-explain that piece simply — the loop is explain → find gap → fill →…
  5. Test the bar. Can they now explain the whole thing to a smart 12-year-old? If yes, they know it. If a part still needs jargon, that part…

What it can do on your machine

Read from SKILL.md and the folder at commit 1cbf1f0. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Feynman Explainer loads about 1k tokens when it runs. Until then it costs about 151 tokens; SKILL.md has 510 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~151
When it runs · the whole SKILL.md, loaded when a task matches
~1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from mohitagw15856/pm-claude-skills at commit 1cbf1f0, republished under its MIT licence (© mohitagw15856). 510 words, ~1,004 tokens.

Download SKILL.mdSave it as .claude/skills/feynman-explainer/SKILL.md (or your agent's skills folder).
name
feynman-explainer
description
Learn something deeply by trying to explain it simply — the Feynman technique — surfacing exactly the gaps where your understanding is fake. Use when asked help me really understand X, explain this back to check my understanding, use the Feynman technique on, or do I actually get this. Produces a prompt to explain the concept in plain language yourself, a check that flags where your explanation went vague, hand-wavy, or jargon-hid a gap, the specific things you don't actually understand yet, and how to close each — because if you can't explain it simply, you don't really know it.

Feynman Explainer

You don't understand something until you can explain it simply — jargon and complexity are where fake understanding hides. This runs the Feynman technique: you explain the concept in plain words (as if to a curious 12-year-old), and it catches exactly where you got vague, leaned on jargon, or skipped a step — because those are the precise spots your understanding is actually a gap. Then it helps you close them.

What This Skill Produces

  • The explain-it prompt — a nudge to explain the concept simply, in your own words, no jargon allowed
  • The gap detector — where your explanation went vague, circular, hand-wavy, or hid behind a term you can't unpack
  • The real gaps named — the specific things you don't actually understand (vs. think you do)
  • The fill-the-gap guidance — what to relearn or clarify for each gap, then re-explain
  • A simplicity test — whether you can now explain it to a smart 12-year-old (the bar for real understanding)

Required Inputs

Ask for these if not provided:

  • The concept — what you're trying to understand
  • Your explanation — your attempt to explain it simply (this is the raw material)
  • Why you need it — an exam, a decision, teaching someone, genuine curiosity
  • Your current confidence — sure you get it, or suspect you don't

Framework: Explain Simply, Find The Fake Understanding

  1. Explain it plainly. Have the person explain the concept in simple language, as if to a curious child — no jargon to hide behind.
  2. Hunt the vagueness. Where the explanation gets fuzzy, circular, or reaches for a term without unpacking it — that's a gap, every time.
  3. Name the real gaps. Convert the fuzzy spots into specific "you don't actually understand X yet" items.
  4. Fill and re-explain. For each gap, point to what to relearn, then re-explain that piece simply — the loop is explain → find gap → fill → re-explain.
  5. Test the bar. Can they now explain the whole thing to a smart 12-year-old? If yes, they know it. If a part still needs jargon, that part isn't understood.
Show full SKILL.md (176 more words)Show less

Output Format

Concept: [what you're learning]

Your explanation: [what you said]. Where it got fuzzy (= gaps): [vague/circular/jargon-hidden spots]. What you don't actually understand yet: [the specific gaps]. Close each: [what to relearn/clarify] → then re-explain it simply. The bar: can you now explain it to a curious 12-year-old? [yes → you've got it / not the part about X].

Quality Checks

  • Prompts a genuine plain-language explanation
  • Catches vagueness, circularity, and jargon-hiding
  • Converts fuzzy spots into specific named gaps
  • Gives fill-the-gap guidance and a re-explain loop
  • Uses the "explain to a 12-year-old" bar

Anti-Patterns

  • Accepting a jargon-filled explanation as understanding.
  • Explaining it for them instead of catching their gaps.
  • Vague "you could go deeper" instead of named gaps.
  • Skipping the re-explain loop.

Example Trigger Phrases

  • "Help me really understand how interest rates work — I'll explain, you find my gaps."
  • "Use the Feynman technique on this concept with me."
  • "Let me explain this back — do I actually get it?"
  • "I think I understand recursion but I'm not sure. Test me."
  • "Check my understanding of this by making me explain it simply."

© mohitagw15856, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/feynman-explainer of mohitagw15856/pm-claude-skills.

Open the folder on GitHubat commit 1cbf1f0

Compare with similar skills

Feynman Explainer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Feynman Explainer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Feynman Explainer this skillmohitagw15856/pm-claude-skills1.4k—~1kAutomated safety check: PassMIT
Asd Ste100danyuchn/asd-ste100-skill4k—~4.1kAutomated safety check: PassMIT
Simple Issue Descriptionevery-app/open-seo23k1 repos~1.2kAutomated safety check: PassMIT
Ponytail AuditDietrichGebert/ponytail158k—~1.3kAutomated safety check: PassMIT
Technical Writing Standardcursor/plugins10k10 repos~2.4kAutomated safety check: PassNone
Natural Japanese Business Writingcoji/natural-japanese1.9k—~2.1kAutomated safety check: PassMIT

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Categories

Questions about Feynman Explainer

What does Feynman Explainer do?

Learn something deeply by trying to explain it simply — the Feynman technique — surfacing exactly the gaps where your understanding is fake. Feynman Explainer is an agent skill from mohitagw15856/pm-claude-skills. Learn something deeply by trying to explain it simply — the Feynman technique — surfacing exactly the gaps where your understanding is fake.

When should I use Feynman Explainer?

Feynman Explainer fits situations like: asked help me really understand X; explain this back to check my understanding; use the Feynman technique on; do I actually get this.

How do I install Feynman Explainer in Claude Code?

Run `npx skills add mohitagw15856/pm-claude-skills --skill feynman-explainer -a claude-code`. Or copy the skill folder (skills/feynman-explainer in mohitagw15856/pm-claude-skills) into .claude/skills/feynman-explainer in your project. Claude Code loads it when a task matches its description.

How do I install Feynman Explainer in Codex?

Run `npx skills add mohitagw15856/pm-claude-skills --skill feynman-explainer -a codex`. Or copy the skill folder (skills/feynman-explainer in mohitagw15856/pm-claude-skills) into .agents/skills/feynman-explainer in your project. Codex loads it when a task matches its description.

Can I use Feynman Explainer in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mohitagw15856/pm-claude-skills --skill feynman-explainer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/feynman-explainer, .gemini/skills/feynman-explainer, .github/skills/feynman-explainer and .opencode/skills/feynman-explainer in your project.

What does Feynman Explainer need to run?

SKILL.md names no scripts, command-line tools or credentials: Feynman Explainer is instructions for the agent only.

Does Feynman Explainer access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Feynman Explainer safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Feynman Explainer use?

Feynman Explainer is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Feynman Explainer use?

About 1k tokens (SKILL.md is roughly 4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Feynman Explainer?

Skills that share tags, products or a category with Feynman Explainer: Asd Ste100 (danyuchn/asd-ste100-skill, 4k stars), Simple Issue Description (every-app/open-seo, 23k stars), Ponytail Audit (DietrichGebert/ponytail, 158k stars) and Technical Writing Standard (cursor/plugins, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Feynman Explainer?

mohitagw15856 (a GitHub user) maintains it in mohitagw15856/pm-claude-skills, which has 1,431 GitHub stars. The repository holds 1,322 skills in this directory. The repository was last updated on October 7, 2026.

Source: mohitagw15856/pm-claude-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.