Video Understand
calesthio/OpenMontage
Understand video content locally using ffmpeg frame extraction and Whisper transcription.
Rip a media URL to FLAC/MP3/MP4 via yt-dlp — quality-first format selection, metadata tagging, cover art, metadata-based filenames, .cue from chapters, and the main-window activity band.
Install Stream Ripper
$ npx skills add ad-repo/nullplayer --skill stream-ripper -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ad-repo/nullplayer stream-ripper --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/stream-ripper .claude/skills/stream-ripper && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "stream-ripper" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/stream-ripper into .claude/skills/stream-ripper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "stream-ripper", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/ad-repo/nullplayer/tree/main/skills/stream-ripperType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add ad-repo/nullplayer --skill stream-ripper -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ad-repo/nullplayer stream-ripper --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/stream-ripper .agents/skills/stream-ripper && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "stream-ripper" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/stream-ripper into .agents/skills/stream-ripper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "stream-ripper", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ad-repo/nullplayer --skill stream-ripper -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ad-repo/nullplayer stream-ripper --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/stream-ripper .cursor/skills/stream-ripper && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "stream-ripper" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/stream-ripper into .cursor/skills/stream-ripper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "stream-ripper", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/ad-repo/nullplayer.git --path skills/stream-ripper--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add ad-repo/nullplayer --skill stream-ripper -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ad-repo/nullplayer stream-ripper --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/stream-ripper .gemini/skills/stream-ripper && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "stream-ripper" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/stream-ripper into .gemini/skills/stream-ripper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "stream-ripper", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install ad-repo/nullplayer stream-ripperInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add ad-repo/nullplayer --skill stream-ripper -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/stream-ripper .github/skills/stream-ripper && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "stream-ripper" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/stream-ripper into .github/skills/stream-ripper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "stream-ripper", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ad-repo/nullplayer --skill stream-ripper -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ad-repo/nullplayer stream-ripper --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/stream-ripper .opencode/skills/stream-ripper && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "stream-ripper" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/stream-ripper into .opencode/skills/stream-ripper/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "stream-ripper", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
stream-ripper- GitHub stars
- 158
- Token cost
- ~2.2k tokens
- SKILL.md length
- 1,071 words
- Files
- 1
- Skills in repo
- 40
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Rip a media URL to FLAC/MP3/MP4 via yt-dlp — quality-first format selection, metadata tagging, cover art, metadata-based filenames, .cue from chapters, and the main-window activity band.
- Works in 6 steps: Output → Streaming → Rip URL…… → Paste a URL (the field pre-fills from… → Pick an output type: Audio — FLAC… → …
- Working on the Stream Ripper
- SKILL.md covers Quick Start (user), Requirements, Architecture and yt-dlp invocation…, plus 4 more sections
- Calls brew
What it does
Stream Ripper is an agent skill from ad-repo/nullplayer. Rip a media URL to FLAC/MP3/MP4 via yt-dlp — quality-first format selection, metadata tagging, cover art, metadata-based filenames, .cue from chapters, and the main-window activity band. Use when working on the Stream Ripper, yt-dlp/ffmpeg integration, or the Output → Streaming menu.
Its SKILL.md is about 2.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Media & Creative, covering Video production. It works with FFmpeg. The repository describes itself as: nullPlayer is a free open source macOS media player with some unique features.
When your agent uses it
- Working on the Stream Ripper
- Yt-dlp/ffmpeg integration
- The Output → Streaming menu
Example prompts
- “/stream-ripper”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Output → Streaming → Rip URL… (right-click anywhere, or the menu bar Output menu)
- Paste a URL (the field pre-fills from the clipboard when it holds an http(s) link)
- Pick an output type: Audio — FLAC (lossless), Audio — MP3, or video at 1080p / 4 Mbps / 720p / 2.5 Mbps / 1080p / 8 Mbps / 1440p / 16 Mbps…
- Choose a destination folder (defaults to Downloads)
- A spinner + message appears at the top of the main window during the rip
- When done: Play Now, Reveal in Finder, or Done
What it can do on your machine
Read from SKILL.md and the folder at commit 3d87ce1. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
brew
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Stream Ripper loads about 2.2k tokens when it runs. Until then it costs about 75 tokens; SKILL.md has 1,071 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,071 words (~2,153 tokens).
“Paste a URL and download it to a local file: lossless FLAC, MP3, or a playback-safe H.264/AAC MP4 video at a chosen resolution/bitrate profile (720p/2.5 Mbps, 1080p/4 Mbps recommended, 1080p/8 Mbps high quality, 1440p/16 Mbps, 4K/35 Mbps, Full/50 Mbps max)…”
- name
- stream-ripper
Files
Just SKILL.md in skills/stream-ripper of ad-repo/nullplayer.
Open the folder on GitHubat commit 3d87ce1
Compare with similar skills
Stream Ripper next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Stream Ripper this skillad-repo/nullplayer | 158 | — | ~2.2k | Automated safety check: Pass | Custom licence | |
| Video Understandcalesthio/OpenMontage | 66k | — | ~841 | Automated safety check: Pass | AGPL-3.0 | |
| HyperFrames Video Entry Pointheygen-com/hyperframes | 60k | 3 repos | ~5.2k | Automated safety check: Pass | Apache-2.0 | |
| Video Shotseternityspring/reelbench-skills | 878 | 1 repos | ~1.8k | Automated safety check: Notes | Apache-2.0 | |
| Mobile Demo Film Editorsuperset-sh/superset | 15k | — | ~1.8k | Automated safety check: Pass | Custom licence | |
| Video Editcalesthio/OpenMontage | 66k | — | ~855 | Automated safety check: Notes | AGPL-3.0 |
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heygen-com/hyperframes
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Mobile Demo Film Editor
superset-sh/superset
Edits real mobile screen recordings into a configurable demo video with phone framing, title cards, cutaways and an end card, using a bundled renderer.
Video Edit
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Edit videos locally using ffmpeg. An agent skill from calesthio/OpenMontage.
Lemo-Opuscar Short Film Director
lemomo-ai/lemo-opuscar
Directs a short film made entirely in code in one of the Lemo-Opuscar library's named visual styles, from fetching the library through production and delivery.
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Related
Works with
Categories
Questions about Stream Ripper
What does Stream Ripper do?
Rip a media URL to FLAC/MP3/MP4 via yt-dlp — quality-first format selection, metadata tagging, cover art, metadata-based filenames, .cue from chapters, and the main-window activity band. Stream Ripper is an agent skill from ad-repo/nullplayer.cue from chapters, and the main-window activity band.
When should I use Stream Ripper?
Stream Ripper fits situations like: working on the Stream Ripper; yt-dlp/ffmpeg integration; the Output → Streaming menu.
How do I install Stream Ripper in Claude Code?
Run `npx skills add ad-repo/nullplayer --skill stream-ripper -a claude-code`. Or copy the skill folder (skills/stream-ripper in ad-repo/nullplayer) into .claude/skills/stream-ripper in your project. Claude Code loads it when a task matches its description.
How do I install Stream Ripper in Codex?
Run `npx skills add ad-repo/nullplayer --skill stream-ripper -a codex`. Or copy the skill folder (skills/stream-ripper in ad-repo/nullplayer) into .agents/skills/stream-ripper in your project. Codex loads it when a task matches its description.
Can I use Stream Ripper in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ad-repo/nullplayer --skill stream-ripper -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/stream-ripper, .gemini/skills/stream-ripper, .github/skills/stream-ripper and .opencode/skills/stream-ripper in your project.
What does Stream Ripper need to run?
Going by SKILL.md and its folder, Stream Ripper needs the command-line tools its instructions call (brew).
Does Stream Ripper access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Stream Ripper safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Stream Ripper use?
Stream Ripper has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Stream Ripper use?
About 2.2k tokens (SKILL.md is roughly 8.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Stream Ripper?
Skills that share tags, products or a category with Stream Ripper: Video Understand (calesthio/OpenMontage, 66k stars), HyperFrames Video Entry Point (heygen-com/hyperframes, 60k stars), Video Shots (eternityspring/reelbench-skills, 878 stars) and Mobile Demo Film Editor (superset-sh/superset, 15k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Stream Ripper?
ad-repo (a GitHub user) maintains it in ad-repo/nullplayer, which has 158 GitHub stars. The repository holds 40 skills in this directory. The repository was last updated on October 10, 2026.
Source: ad-repo/nullplayer on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.