v1.0.0 to v1.0.0

---

name: youtube-summarizer

display-name: YouTube Summarizer

description: Summarize YouTube videos by extracting transcripts and generating structured summaries with key points, timestamps, and topic segmentation

version: 1.0.0

category: knowledge

user-invocable: true

tags: [youtube, video, summary, transcript, learning, notes]

capabilities: [transcript-extraction, summary-generation, timestamp-mapping, topic-segmentation]

handler: ./handler.js

os: [win32, darwin, linux]

tools: [yt-summarize, yt-transcript, yt-chapters]

instructions: |

Use this skill when the user wants to summarize a YouTube video,

extract its transcript, or generate study notes from video content.

Extracts captions/subtitles via YouTube's timedtext API and produces

structured summaries.

examples:

- input: "summarize https://youtube.com/watch?v=abc123"

action: summarize

- input: "transcript https://youtu.be/abc123"

action: transcript

- input: "chapters https://youtube.com/watch?v=abc123"

action: chapters

input-schema:

type: string

description: "Action (summarize|transcript|chapters) followed by YouTube URL"

output-schema:

type: object

properties:

success: { type: boolean }

action: { type: string }

videoId: { type: string }

summary: { type: object }

transcript: { type: array }

message: { type: string }

model-hints:

context-window: medium

capability: text

cost: low

author: ChainlessChain

license: MIT

---

# YouTube Summarizer

Extract transcripts and generate summaries from YouTube videos.

## Usage

```

/youtube-summarizer summarize <youtube-url> [--lang en]

/youtube-summarizer transcript <youtube-url>

/youtube-summarizer chapters <youtube-url>

```

## Features

- Auto-detect video ID from various YouTube URL formats

- Extract auto-generated or manual captions

- Generate structured summaries with key points

- Topic-based chapter segmentation

- Timestamp-linked notes