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 |
| Checklist | Verification list, pass/fail criteria | Code review checklist, Launch checklist |
A3: Extract Structure by Type
For How-to:
- •Prerequisites
- •Step sequence (with expected output per step)
- •Final expected result
- •Common errors
For Decision:
- •Decision factors
- •Options with pros/cons
- •Decision tree/flowchart
- •Recommended default
For Framework:
- •Core concepts
- •Analysis dimensions
- •Application method
- •Limitations
For Checklist:
- •Check items with criteria
- •Priority levels
- •Commonly missed items
A4: Generate Skill
Use this template:
## Applicable Scenarios [When to use this skill] ## Prerequisites - [What's needed before starting] ## Steps 1. [Step 1] - [Expected outcome] 2. [Step 2] - [Expected outcome] ... ## Quality Checkpoints - [ ] [Checkpoint 1] - [ ] [Checkpoint 2] ## Common Pitfalls - [Pitfall 1]: [How to avoid] ## Source - Document: [name/URL] - Extracted: [timestamp]
Path B: Reverse Engineer from Example
When input is a finished work (not a tutorial), reverse engineer the methodology.
B1: Identify Output Type
What kind of artifact is this?
- •Technical blog post
- •Product proposal/PRD
- •Academic paper
- •Code architecture
- •Design document
- •Other: [specify]
B2: Analyze Structure
Break down the example:
Structure Analysis: ├── [Part 1]: [Function] - [Proportion %] ├── [Part 2]: [Function] - [Proportion %] ├── [Part 3]: [Function] - [Proportion %] └── [Part N]: [Function] - [Proportion %]
Questions to answer:
- •How many parts does it have?
- •What's the function of each part?
- •What's the order and proportion?
B3: Extract Quality Characteristics
What makes this example good?
| Dimension | Questions |
|---|---|
| Structure | How is content organized? |
| Style | Tone, word choice, expression? |
| Technique | What methods make it effective? |
| Logic | How does information flow? |
| Details | Small but important touches? |
B4: Reverse Engineer the Process
Deduce: To create this output, what steps are needed?
## Deduced Production Steps 1. [Step 1]: [What to do] - [Key point] 2. [Step 2]: [What to do] - [Key point] ... ## Key Decisions - [Decision 1]: [Options] - [This example chose X because...] ## Reusable Techniques - [Technique 1]: [How to apply] - [Technique 2]: [How to apply]
B5: Generate Skill
Use this template for reverse-engineered skills:
## Output Type [What kind of artifact this produces] ## Applicable Scenarios [When to create this type of output] ## Structure Template 1. [Part 1]: [Function] - [~X%] 2. [Part 2]: [Function] - [~X%] ... ## Quality Characteristics (Learned from Example) - [Characteristic 1]: [How it manifests] - [Characteristic 2]: [How it manifests] ## Production Steps 1. [Step 1]: [What to do] - [Tips] 2. [Step 2]: [What to do] - [Tips] ... ## Checklist - [ ] [Check item 1] - [ ] [Check item 2] ## Reference Example - Source: [name/URL] - Analyzed: [timestamp]
Example: Path A (Methodology Document)
User: "Extract a skill from this article about writing good commit messages"
Process:
- •Read the article
- •Identify: This is a How-to type (has steps, teaching intent)
- •Extract:
- •Goal: Write clear, useful commit messages
- •Steps: Use conventional format, separate subject/body, etc.
- •Quality criteria: Subject < 50 chars, imperative mood, etc.
- •Generate skill with steps and checklist
Example: Path B (Reverse Engineering)
User: "Here's a great technical blog post. Learn from it and create a skill for writing similar posts."
Process:
- •Identify: This is an example (finished work, no teaching intent)
- •Analyze structure:
code
├── Hook: Real pain point (2-3 sentences) ├── Problem: 3 sentences on the core issue ├── Solution: Conclusion first, then details ├── Code: Each snippet < 20 lines, with comments ├── Pitfalls: 3 common errors └── Summary: One-line takeaway
- •Extract quality characteristics:
- •Title = specific tech + problem solved
- •One idea per paragraph
- •Code:text ratio ~40:60
- •Personal anecdotes for credibility
- •Reverse engineer steps:
- •Start with a real problem you solved
- •Write the solution first, then the setup
- •Add code samples progressively
- •etc.
- •Generate skill: "How to Write a Technical Blog Post"
Advanced: Multi-Example Learning
When user provides multiple examples of the same type:
Example A ──┐
Example B ──┼──> Extract commonalities ──> Core methodology
Example C ──┘ │
▼
Analyze differences ──> Style variants / Optional techniques
This produces more robust, generalizable skills.
Important Notes
- •Always validate first - Not all content is suitable for skill extraction
- •Identify the path early - Methodology doc vs Example require different approaches
- •Be specific - Vague skills are useless; include concrete steps and criteria
- •Preserve the source - Always credit where the knowledge came from
- •Ask for clarification - If unsure about user intent, ask before proceeding
- •Quality over speed - Take time to truly understand the content
What This Skill is NOT
- •NOT a summarizer (that's NotebookLM's job)
- •NOT a document converter
- •It's about extracting actionable methodology that can be repeatedly executed