Agent skill

Feynman

Use the Feynman technique to deeply learn a concept by explaining it simply, identifying gaps, filling them, and refining the explanation.

Custom licenceAuto-check passedKnowledge Management

Install Feynman

skills CLI

$ npx skills add SourceWeft/SourceWeft --skill feynman -a claude-code

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

GitHub CLI

$ gh skill install SourceWeft/SourceWeft feynman --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/SourceWeft/SourceWeft.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/builtin-skill-feynman .claude/skills/feynman && 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/

Paste into Claude Code

Install the "feynman" agent skill from https://github.com/SourceWeft/SourceWeft/tree/main/packages/builtin-skill-feynman into .claude/skills/feynman/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feynman", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/SourceWeft/SourceWeft/tree/main/packages/builtin-skill-feynman

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add SourceWeft/SourceWeft --skill feynman -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install SourceWeft/SourceWeft feynman --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SourceWeft/SourceWeft.git skills-src && mkdir -p .agents/skills && cp -r skills-src/packages/builtin-skill-feynman .agents/skills/feynman && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "feynman" agent skill from https://github.com/SourceWeft/SourceWeft/tree/main/packages/builtin-skill-feynman into .agents/skills/feynman/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feynman", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add SourceWeft/SourceWeft --skill feynman -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install SourceWeft/SourceWeft feynman --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SourceWeft/SourceWeft.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/packages/builtin-skill-feynman .cursor/skills/feynman && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "feynman" agent skill from https://github.com/SourceWeft/SourceWeft/tree/main/packages/builtin-skill-feynman into .cursor/skills/feynman/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feynman", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/SourceWeft/SourceWeft.git --path packages/builtin-skill-feynman

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add SourceWeft/SourceWeft --skill feynman -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install SourceWeft/SourceWeft feynman --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SourceWeft/SourceWeft.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/packages/builtin-skill-feynman .gemini/skills/feynman && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "feynman" agent skill from https://github.com/SourceWeft/SourceWeft/tree/main/packages/builtin-skill-feynman into .gemini/skills/feynman/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feynman", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install SourceWeft/SourceWeft feynman

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add SourceWeft/SourceWeft --skill feynman -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/SourceWeft/SourceWeft.git skills-src && mkdir -p .github/skills && cp -r skills-src/packages/builtin-skill-feynman .github/skills/feynman && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "feynman" agent skill from https://github.com/SourceWeft/SourceWeft/tree/main/packages/builtin-skill-feynman into .github/skills/feynman/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feynman", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add SourceWeft/SourceWeft --skill feynman -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install SourceWeft/SourceWeft feynman --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SourceWeft/SourceWeft.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/packages/builtin-skill-feynman .opencode/skills/feynman && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "feynman" agent skill from https://github.com/SourceWeft/SourceWeft/tree/main/packages/builtin-skill-feynman into .opencode/skills/feynman/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "feynman", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: feynman
GitHub stars: 158
Token cost: ~750 tokens
SKILL.md length: 364 words
Files: 8 (incl. references)
Skills in repo: 7
Repo updated: Oct 2, 2026
First seen: Oct 7, 2026
Licence: Custom licence

At a glance

Use the Feynman technique to deeply learn a concept by explaining it simply, identifying gaps, filling them, and refining the explanation.

Works in 4 steps: Explain It Simply → Identify Gaps → Fill the Gaps → …
Knowledge Management work in your project
SKILL.md covers Execution Rules, Output Format, Step 1: Explain It Simply and Step 2: Identify Gaps, plus 4 more sections
Runs TypeScript scripts from its folder

What it does

Feynman is an agent skill from SourceWeft/SourceWeft. Use the Feynman technique to deeply learn a concept by explaining it simply, identifying gaps, filling them, and refining the explanation.

Its SKILL.md is about 750 tokens, which your agent loads only when the skill is triggered. The skill folder holds 10 other files, including reference files (for example `README.md`, `package.json` and `references/examples.md`).

It sits in Knowledge Management. The repository describes itself as: Open-source, self-hostable alternative to ChatGPT and NotebookLM — agents, skills, MCP, and cited knowledge in one AI workstation. Your models, your infrastructure.

When your agent uses it

Knowledge Management work in your project

Example prompts

“/feynman”

Requirements

Node.js

Workflow steps

4 steps, taken from the step headings in SKILL.md.

Explain It Simply
Identify Gaps
Fill the Gaps
Refined Explanation

What it can do on your machine

Read from SKILL.md and the folder at commit 8facc65. 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
Ships script files (TypeScript), which the agent can run.
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 loads about 750 tokens when it runs, and up to ~1.7k if it reads all its reference files. Until then it costs about 37 tokens; SKILL.md has 364 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~37
When it runs · the whole SKILL.md, loaded when a task matches: ~750
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~1.7k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 364 words (~750 tokens).

“Use this skill when the user invokes /feynman to work through a concept with the full Feynman learning technique.”

— opening of SKILL.md by SourceWeft, Custom licence

name: feynman
argument-hint: [concept or question to understand]
user-invocable: true
disable-model-invocation: false

Read the full SKILL.md on GitHub

Files

SKILL.md and 7 other files (references) in packages/builtin-skill-feynman of SourceWeft/SourceWeft.

SKILL.md
README.md
package.json
references/examples.md
sourceweft.capability.json
src/index.ts
tests/manifest.test.ts
tsconfig.json

Open the folder on GitHubat commit 8facc65

Compare with similar skills

Feynman 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 compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Feynman this skillSourceWeft/SourceWeft	158	—	~750	Automated safety check: Pass	Custom licence	5 days ago
Soulaeonfun/soul.md	686	2 repos	~1.1k	Automated safety check: Pass	MIT	29 days ago
AI Career Plannerayush488-glitch/ai-career-planner-skill	196	—	~5.2k	Automated safety check: Pass	MIT	6 mo ago
Drkg QueryQSong-github/DrugClaw	116	1 repos	~915	Automated safety check: Pass	None	1 mo ago
Video Lenskar2phi/video-lens	112	—	~8.2k	Automated safety check: Notes	MIT	1 mo ago
Wiki NarrateAr9av/obsidian-wiki	3.5k	—	~1.7k	Automated safety check: Pass	MIT	yesterday

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Questions about Feynman

What does Feynman do?

Use the Feynman technique to deeply learn a concept by explaining it simply, identifying gaps, filling them, and refining the explanation. Feynman is an agent skill from SourceWeft/SourceWeft. Use the Feynman technique to deeply learn a concept by explaining it simply, identifying gaps, filling them, and refining the explanation.

When should I use Feynman?

Feynman fits situations like: knowledge Management work in your project.

How do I install Feynman in Claude Code?

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

How do I install Feynman in Codex?

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

Can I use Feynman 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 SourceWeft/SourceWeft --skill feynman -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, .gemini/skills/feynman, .github/skills/feynman and .opencode/skills/feynman in your project.

What does Feynman need to run?

Going by SKILL.md and its folder, Feynman needs TypeScript for the scripts in its folder. Our summary lists: Node.js.

Does Feynman 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 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 use?

Feynman has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Feynman use?

About 750 tokens (SKILL.md is roughly 3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 935 tokens, read only when the agent opens those files.

What are the alternatives to Feynman?

Skills that share tags, products or a category with Feynman: Soul (aeonfun/soul.md, 686 stars), AI Career Planner (ayush488-glitch/ai-career-planner-skill, 196 stars), Drkg Query (QSong-github/DrugClaw, 116 stars) and Video Lens (kar2phi/video-lens, 112 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Feynman?

SourceWeft (a GitHub organization) maintains it in SourceWeft/SourceWeft, which has 158 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 2, 2026.

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

Feynman

Install Feynman

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

Soul

AI Career Planner

Drkg Query

Video Lens

Wiki Narrate

Reading Digest

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Questions about Feynman

Install Feynman

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

More from SourceWeft/SourceWeft

Related

Questions about Feynman