# skill-from-notebook

Extracts actionable methodologies from documents, articles, videos, and finished examples to generate reusable skills for coding agents.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 369 installs · ★ 1590
- Author: GBSOSS
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/GBSOSS/skill-from-masters/tree/HEAD/skills/skill-from-notebook/SKILL.md
- Updated: 2026-02-16
- HTML: https://affpapa.org/en/nevibecode/skills/skill-from-notebook

## What it does

The skill transforms reference materials into structured Markdown skills. It handles local PDF, Word, and Markdown files, web links, NotebookLM exports, and YouTube videos. For YouTube sources, it relies on `yt-dlp` to pull subtitles, turning to `Whisper` if no transcript is found.

Processing splits into two paths depending on the source. Path A extracts step-by-step methodologies from guides or tutorials, classifying them into How-to, Decision, Framework, or Checklist formats. Path B reverse-engineers finished artifacts, such as technical blog posts or code architectures. It analyzes component ratios, identifies quality drivers, and reconstructs the workflow required to reproduce the output.

The skill halts early on unsuitable inputs. When material has neither educational structure nor an artifact to disassemble, generation stops with an alert.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add GBSOSS/skill-from-masters --skill skill-from-notebook -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/skill-from-notebook/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/skill-from-notebook/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add GBSOSS/skill-from-masters --skill skill-from-notebook -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/skill-from-notebook/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add GBSOSS/skill-from-masters --skill skill-from-notebook -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/skill-from-notebook/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install GBSOSS/skill-from-masters skill-from-notebook
```

2. **Manually: put the files in place**
- File: `.github/skills/skill-from-notebook/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add GBSOSS/skill-from-masters --skill skill-from-notebook -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/GBSOSS/skill-from-masters --path skills/skill-from-notebook
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/skill-from-notebook/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add GBSOSS/skill-from-masters --skill skill-from-notebook -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/GBSOSS/skill-from-masters/tree/HEAD/skills/skill-from-notebook/SKILL.md

## When to use it
- Extract an executable skill from a PDF guide or internal specification
- Reverse-engineer a technical article into a reusable writing framework
- Convert YouTube tutorial subtitles into an operational checklist
- Structure decision trees and trade-offs from analytical documents

## Example prompts
- I just read this article about code review, help me create a skill from it
- Here's a great technical blog post, extract the writing methodology
- Turn this PDF deployment guide into a skill I can reuse

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: d0a947c6375b2aa9.

BEGIN THIRD-PARTY FILE d0a947c6375b2aa9
````text
---
name: skill-from-notebook
description: Extract methodologies from documents or examples to create executable skills
model: sonnet
---

# Skill from Notebook

Extract actionable methodologies from learning materials (documents, articles, videos) or quality examples (blog posts, designs, code) to generate reusable Skills.

**Core Philosophy**: NotebookLM helps you understand. This skill helps you **do**.

## When to Use

When users want to turn knowledge into executable skills:

- "I just read this article about code review, help me create a skill from it"
- "Here's a great technical blog post, extract the writing methodology"
- "Turn this PDF guide into a skill I can reuse"
- "Learn from this example and create a skill to produce similar output"

## Supported Input Types

| Type | How to Process |
|------|----------------|
| Local files | PDF, Word, Markdown - Read directly |
| Web URL | WebFetch to extract content |
| YouTube | Use yt-dlp for subtitles, Whisper if unavailable |
| NotebookLM link | Browser automation to extract notes/summaries |
| Example/Output | Reverse engineer the methodology |

## Step 0: Identify Input Type

**Critical first step** - Determine which processing path to use:

```
User Input
    │
    ├─ Has teaching intent? ("how to", "steps", "guide")
    │   └─ YES → Path A: Methodology Document
    │
    ├─ Is a finished work? (article, design, code, proposal)
    │   └─ YES → Path B: Example (Reverse Engineering)
    │
    └─ Neither? → Tell user this content is not suitable
```

**Path A indicators** (Methodology Document):
- Contains words like "how to", "steps", "method", "guide"
- Has numbered lists or step sequences
- Written with teaching intent
- Describes "what to do"

**Path B indicators** (Example/Output):
- Is a complete work/artifact
- No teaching intent
- Is "the thing itself" rather than "how to make the thing"
- Examples: a well-written blog post, a polished proposal, a code project

---

## Path A: Extract from Methodology Document

### A1: Validate Document Suitability

Check if the document is suitable for skill generation (must meet at least 2):

- [ ] Has clear goal/outcome
- [ ] Has repeatable steps/process
- [ ] Has quality criteria
- [ ] Has context/scenario description

**If not suitable**: Tell user honestly and explain why.

### A2: Identify Skill Type

| Type | Characteristics | Examples |
|------|-----------------|----------|
| **How-to** | Clear step sequence, input→output | Deploy Docker, Configure CI/CD |
| **Decision** | Conditions, trade-offs, choices | Choose database, Select framework |
| **Framework** | Mental model, analysis dimensions | SWOT, 5W1H, First Principles |
````
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