youtube-caption SKILL.md skillA
youtube-caption from valtterimelkko/agent-workflow-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add valtterimelkko/agent-workflow-skills/youtube-caption@git:20260611.6de34bfPins git:20260611.6de34bf in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- valtterimelkko/agent-workflow-skills
- Path
skills/youtube-caption/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260611.6de34bf, committed Jun 11, 2026
- Size
- 4,497 bytes
- Repository stars
- 2
- License
- MIT
Fetch YouTube video captions/transcripts and metadata. Use when you need to download video transcripts, extract captions from YouTube URLs, get video descriptions and metadata, or process YouTube video text content. Supports residential proxy for reliable caption and metadata fetching (credentials can be auto-loaded from environment or a shell startup file).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# YouTube Caption Fetcher Download captions/transcripts and metadata from any YouTube video using the `youtube-transcript-api` library with optional residential proxy support. ## Prerequisites **Required Python package:** ```bash pip install youtube-transcript-api ``` **Residential Proxy Credentials** (auto-loaded from environment or a shell startup file): ```bash # Reddit proxy for YouTube caption and metadata fetching export YOUTUBE_PROXY_URL="http://username:password@host:port" # legacy fallback also supported: export REDDIT_PROXY_URL="http://username:password@host:port" ``` The skill automatically fetches these credentials from the environment or a shell startup file when caption or metadata fetching requires proxy support. ## Quick Start ### Fetch captions and metadata: ```bash python3 ./scripts/fetch_caption.py --url "https://www.youtube.com/watch?v=VIDEO_ID" ``` ### Fetch only metadata (uses proxy): ```bash python3 ./scripts/fetch_caption.py --url "https://youtu.be/VIDEO_ID" --metadata-only ``` ### Fetch captions only (uses proxy): ```bash python3 ./scripts/fetch_caption.py --url "https://www.youtube.com/watch?v=VIDEO_ID" --captions-only ``` ## Parameters …
Read the whole file at its exact version.
How to install
mdr add valtterimelkko/agent-workflow-skills/youtube-caption@sha256:3d5dcdfc6f413d0dThe line at the top of this page pins the label git:20260611.6de34bf, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_igzr7yl7at7dry52)
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Versions
The registry has recorded 1 version of this file, committed on Jun 11, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4497 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
valtterimelkko/agent-workflow-skills · 2 stars · license MIT · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_igzr7yl7at7dry52 GET https://markdownregistry.com/api/v1/resolve?ref=valtterimelkko/agent-workflow-skills/youtube-caption GET https://markdownregistry.com/api/v1/blob/3d5dcdfc6f413d0db8cb728736d13ad52b6be2951f7cba69d5f512a58e3f415a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.