Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/b33eep/claude-code-setup/youtube-transcriptnpx skills add b33eep/claude-code-setup --skill youtube-transcriptgit clone --depth 1 https://github.com/b33eep/claude-code-setupWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00030 | $0.01501 |
| Opus 5 | $0.00015 | $0.00750 |
| Sonnet 5 | $0.00006 | $0.00300 |
| Haiku 4.5 | $0.00003 | $0.00150 |
Grade D, and why
youtube-transcript scanned grade D with 3 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo apt install ffmpeg Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
- Install deno if needed: `brew install deno` or `curl -fsSL https://deno.land/install.sh | sh` Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- Install deno if needed: `brew install deno` or `curl -fsSL https://deno.land/install.sh | sh` How it starts
The opening of the file, as written. The whole thing — 199 lines — stays where its author put it; the contents beside it link to each section on GitHub.
YouTube Transcript Skill
Download and analyze YouTube video transcripts with automatic frame extraction at visual reference points.
Usage
/youtube-transcript <youtube-url>
What This Skill Does
- Downloads transcript with timestamps (YouTube auto-captions or manual subtitles)
- Detects visual references in the text ("look at this diagram", "as you can see here")
- Extracts frames at those timestamps for context
- Presents transcript with embedded images for analysis
Requirements
macOS
brew install yt-dlp ffmpeg
Linux (Ubuntu/Debian)
sudo apt install ffmpeg
pip install yt-dlp
Linux (Arch)
sudo pacman -S yt-dlp ffmpeg
Instructions for Claude
When the user invokes /youtube-transcript <url>:
Step 1: Check Dependencies
command -v yt-dlp >/dev/null 2>&1 || echo "MISSING: yt-dlp"
command -v ffmpeg >/dev/null 2>&1 || echo "MISSING: ffmpeg"
If missing, show installation instructions for the user's platform.
Step 2: Create Output Directory
Use the scratchpad directory for output:
# Extract video ID from YouTube URL (POSIX-compatible, works on macOS and Linux)
# Handles: youtube.com/watch?v=ID, youtu.be/ID, youtube.com/embed/ID
URL="<url>"
VIDEO_ID=$(echo "$URL" | sed -E 's/.*[?&]v=([^&]+).*/\1/;s|.*/embed/([^?/]+).*|\1|;s|.*youtu\.be/([^?/]+).*|\1|')
OUTPUT_DIR="<scratchpad>/youtube-${VIDEO_ID}"
mkdir -p "${OUTPUT_DIR}/frames"
Step 3: Download Transcript
cd "${OUTPUT_DIR}"
# Try auto-generated subtitles first, fall back to manual
yt-dlp --write-auto-sub --sub-lang en,de --skip-download --convert-subs srt -o "transcript" "<url>" 2>/dev/null || \
yt-dlp --write-sub --sub-lang en,de --skip-download --convert-subs srt -o "transcript" "<url>"
Step 4: Analyze for Visual References
Read the transcript and identify timestamps where visual content is referenced. Look for patterns:
German:
- "schau(t)? (mal )?(hier|das)"
- "(dieses|das|dieser) (Diagramm|Bild|Schema|Chart|Graph|Screen|Slide)"
- "wie (du|ihr|Sie) (hier )?(siehst|sehen)"
- "auf (dem|diesem) (Bildschirm|Screen|Slide)"
- "hier sehen wir"
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 199 lines · 30 tokens per session scan D 07a5b0b3c367
youtube-transcript is a skill published in the GitHub repository b33eep/claude-code-setup (56 stars, last pushed 3mo ago), licensed MIT. It adds 30 tokens to every session and 1,501 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it D with 3 findings (asks for root, downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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