SKILL verified MIT Self-run

Youtube

Name: Youtube
Availability: InStock
Author: s-choung

skill-s-choung-research-skills-youtube · by s-choung

Use when the user provides a YouTube URL and wants to extract transcript content as markdown. Triggers - /youtube, YouTube transcript, 유튜브 자막, transcript 추출, 유튜브 내용 가져와.

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Install

$ agentstack add skill-s-choung-research-skills-youtube

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

✓ Prompt-injection patterns
✓ Secret / credential exfiltration
✓ Dangerous shell & filesystem operations
✓ Untrusted network calls
✓ Known-malicious package signatures

What it can access

✓ Network access No
✓ Filesystem access No
✓ Shell / process execution No
✓ Environment & secrets No
✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

✓ Security review passed

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● 3mo ago

Declared compatibility

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Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

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About

YouTube Transcript + Smart Frame Capture

YouTube URL에서 transcript(자막), 메타데이터, 주요 장면 스크린샷을 추출하여 Markdown 파일로 저장한다.

Usage

/youtube

Execution

python3 ~/.claude/skills/youtube/fetch_transcript.py  [options]

Options

| Flag | Description | |------|-------------| | --lang ko,en | 언어 우선순위 (default: ko,en) | | -o ./path | 출력 디렉토리 | | --frames 8 | 캡처할 프레임 수 (0=none, default: 0) | | --cookies cookies.txt | 로그인 필요/연령 제한 영상용 쿠키 파일 | | --proxy socks5://... | IP 차단 우회용 프록시 |

Smart Frame Capture (`--frames N`)

타임스탬프 자동 선택 전략 (우선순위):

Heatmap peaks — YouTube "가장 많이 재생된 구간" 데이터에서 peak 지점 캡처
Chapter starts — heatmap 없으면 챕터 시작점에서 캡처
Uniform interval — 둘 다 없으면 균등 분할

Output

output/_/
├── transcript.md      # 메타데이터 + Key Frames + 타임스탬프 transcript
├── metadata.json      # 제목, 채널, 조회수, 설명, 태그 등
└── frames/            # (--frames 사용 시) 캡처된 주요 장면 이미지
    ├── frame_000_0020.jpg
    └── ...

Requirements

yt-dlp (brew install yt-dlp)
ffmpeg (brew install ffmpeg) — 프레임 캡처용
youtube-transcript-api (자동 설치됨)

After Extraction

transcript.md가 생성되면 사용자에게 경로를 알려주고, 내용에 대해 질문이 있는지 물어본다.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Author: s-choung
Source: s-choung/Research-Skills
License: MIT

Install and usage instructions live in the source repository linked above.

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Versions

v0.1.0 Imported from the upstream source.