Autoshorts
Upload-Post/skill-autoshorts
Daily pipeline that picks one long video from a folder, transcribes it with Whisper, uses Gemini 3 Flash multimodal to find every viral short-form moment, cuts each candidate with FFmpeg, adds a…
Generate TikTok/Shorts-style karaoke captions using MLX Whisper, ASS subtitles, and FFmpeg libass.
Install Karaoke Captions
$ npx skills add AI-Builder-Club/skills --skill karaoke-captions -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install AI-Builder-Club/skills karaoke-captions --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/AI-Builder-Club/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/karaoke-captions .claude/skills/karaoke-captions && 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 "karaoke-captions" agent skill from https://github.com/AI-Builder-Club/skills/tree/main/skills/karaoke-captions into .claude/skills/karaoke-captions/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "karaoke-captions", 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/AI-Builder-Club/skills/tree/main/skills/karaoke-captionsType 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 AI-Builder-Club/skills --skill karaoke-captions -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install AI-Builder-Club/skills karaoke-captions --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AI-Builder-Club/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/karaoke-captions .agents/skills/karaoke-captions && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "karaoke-captions" agent skill from https://github.com/AI-Builder-Club/skills/tree/main/skills/karaoke-captions into .agents/skills/karaoke-captions/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "karaoke-captions", 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 AI-Builder-Club/skills --skill karaoke-captions -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install AI-Builder-Club/skills karaoke-captions --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AI-Builder-Club/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/karaoke-captions .cursor/skills/karaoke-captions && 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 "karaoke-captions" agent skill from https://github.com/AI-Builder-Club/skills/tree/main/skills/karaoke-captions into .cursor/skills/karaoke-captions/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "karaoke-captions", 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/AI-Builder-Club/skills.git --path skills/karaoke-captions--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 AI-Builder-Club/skills --skill karaoke-captions -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install AI-Builder-Club/skills karaoke-captions --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AI-Builder-Club/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/karaoke-captions .gemini/skills/karaoke-captions && 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 "karaoke-captions" agent skill from https://github.com/AI-Builder-Club/skills/tree/main/skills/karaoke-captions into .gemini/skills/karaoke-captions/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "karaoke-captions", 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 AI-Builder-Club/skills karaoke-captionsInstalls 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 AI-Builder-Club/skills --skill karaoke-captions -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/AI-Builder-Club/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/karaoke-captions .github/skills/karaoke-captions && 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 "karaoke-captions" agent skill from https://github.com/AI-Builder-Club/skills/tree/main/skills/karaoke-captions into .github/skills/karaoke-captions/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "karaoke-captions", 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 AI-Builder-Club/skills --skill karaoke-captions -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install AI-Builder-Club/skills karaoke-captions --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AI-Builder-Club/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/karaoke-captions .opencode/skills/karaoke-captions && 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 "karaoke-captions" agent skill from https://github.com/AI-Builder-Club/skills/tree/main/skills/karaoke-captions into .opencode/skills/karaoke-captions/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "karaoke-captions", 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
karaoke-captions- GitHub stars
- 1.3k
- Token cost
- ~850 tokens
- SKILL.md length
- 202 words
- Files
- 11 (incl. scripts, references)
- Skills in repo
- 11
- Repo updated
- First seen
- Licence
- None found
At a glance
Generate TikTok/Shorts-style karaoke captions using MLX Whisper, ASS subtitles, and FFmpeg libass.
- Works in 5 steps: Extract Word Timestamps → Select Style or Auto-match from… → Generate ASS Subtitles → …
- Burning word-level highlight captions into a video
- SKILL.md covers Requirements, File Architecture, Standard Workflow and References & Presets
- Runs Python and Shell scripts from its folder; calls python, pip and brew
What it does
Karaoke Captions is an agent skill from AI-Builder-Club/skills. Generate TikTok/Shorts-style karaoke captions using MLX Whisper, ASS subtitles, and FFmpeg libass. Use when burning word-level highlight captions into a video, matching caption style from a screenshot, rendering ASS karaoke subtitles, or when the user runs /karaoke-captions.
Its SKILL.md is about 850 tokens, which your agent loads only when the skill is triggered. The skill folder holds 13 other files, including scripts and reference files (for example `README.md`, `presets/style.json` and `presets/yellow.json`).
It sits in Media & Creative, covering Transcription, Video production and Speech recognition and synthesis. It works with FFmpeg and TikTok. The repository describes itself as: Codebase harness + loop engineer.
When your agent uses it
- Burning word-level highlight captions into a video
- Matching caption style from a screenshot
- Rendering ASS karaoke subtitles
- The user runs /karaoke-captions
Example prompts
- “/karaoke-captions”
Requirements
- Python 3
- A Bash shell
Workflow steps
5 steps, taken from the step headings in SKILL.md.
- Extract Word Timestamps
- Select Style or Auto-match from Reference Image
- Generate ASS Subtitles
- Render Preview & Visual Check
- Render Final Video
What it can do on your machine
Read from SKILL.md and the folder at commit 917780c. 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
Ships 4 files in scripts/ (Python and Shell), which the agent can run.
Shell commands in SKILL.md call:
pythonpipbrew
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
ffmpeg.org
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
Karaoke Captions loads about 850 tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 73 tokens; SKILL.md has 202 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); the scripts in this folder are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 202 words (~850 tokens).
“Generate dynamic, TikTok/Shorts-style karaoke captions with word-level highlight sweeps using ASS subtitles and FFmpeg libass. Supports style matching from a reference screenshot.”
- name
- karaoke-captions
- user_invocable
- true
Files
SKILL.md and 10 other files (scripts, references) in skills/karaoke-captions of AI-Builder-Club/skills.
- SKILL.md
- .gitignore
- README.md
- presets/style.json
- presets/yellow.json
- references/style-guide.md
- requirements.txt
- scripts/extract_words.py
- scripts/gen_ass.py
- scripts/match_style_from_image.py
- scripts/render.sh
Open the folder on GitHubat commit 917780c
Compare with similar skills
Karaoke Captions 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 |
|---|---|---|---|---|---|---|
| Karaoke Captions this skillAI-Builder-Club/skills | 1.3k | — | ~850 | Automated safety check: Pass | None | |
| AutoshortsUpload-Post/skill-autoshorts | 151 | — | ~5.3k | Automated safety check: Notes | MIT | |
| Watchmathiaschu/watch | 142 | — | ~4k | Automated safety check: Warn | MIT | |
| Bggg Tiktok Readvideobinggandata/bggg-skills | 605 | — | ~1.6k | Automated safety check: Pass | MIT | |
| Bggg Tiktok Cutbinggandata/bggg-skills | 605 | — | ~954 | Automated safety check: Pass | MIT | |
| Caption Burngooseworks-ai/goose-skills | 1.2k | — | ~1.2k | Automated safety check: Pass | MIT |
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Edit video and audio with local FFmpeg from natural-language requests: cut, trim, join, resize/reframe (9:16, 1:1), speed change, captions and subtitles (SRT/ASS, animated, karaoke), logos and text…
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Related
Categories
Questions about Karaoke Captions
What does Karaoke Captions do?
Generate TikTok/Shorts-style karaoke captions using MLX Whisper, ASS subtitles, and FFmpeg libass. Karaoke Captions is an agent skill from AI-Builder-Club/skills. Generate TikTok/Shorts-style karaoke captions using MLX Whisper, ASS subtitles, and FFmpeg libass.
When should I use Karaoke Captions?
Karaoke Captions fits situations like: burning word-level highlight captions into a video; matching caption style from a screenshot; rendering ASS karaoke subtitles; the user runs /karaoke-captions.
How do I install Karaoke Captions in Claude Code?
Run `npx skills add AI-Builder-Club/skills --skill karaoke-captions -a claude-code`. Or copy the skill folder (skills/karaoke-captions in AI-Builder-Club/skills) into .claude/skills/karaoke-captions in your project. Claude Code loads it when a task matches its description.
How do I install Karaoke Captions in Codex?
Run `npx skills add AI-Builder-Club/skills --skill karaoke-captions -a codex`. Or copy the skill folder (skills/karaoke-captions in AI-Builder-Club/skills) into .agents/skills/karaoke-captions in your project. Codex loads it when a task matches its description.
Can I use Karaoke Captions 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 AI-Builder-Club/skills --skill karaoke-captions -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/karaoke-captions, .gemini/skills/karaoke-captions, .github/skills/karaoke-captions and .opencode/skills/karaoke-captions in your project.
What does Karaoke Captions need to run?
Going by SKILL.md and its folder, Karaoke Captions needs Python and a shell for the scripts in its folder and the command-line tools its instructions call (python, pip and brew). Our summary lists: Python 3; A Bash shell.
Does Karaoke Captions access the network?
SKILL.md names 1 domain. As links in the text: ffmpeg.org. This is read from the text; nothing was executed.
Is Karaoke Captions 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Karaoke Captions use?
No licence was found for Karaoke Captions or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Karaoke Captions use?
About 850 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 691 tokens, read only when the agent opens those files.
What are the alternatives to Karaoke Captions?
Skills that share tags, products or a category with Karaoke Captions: Autoshorts (Upload-Post/skill-autoshorts, 151 stars), Watch (mathiaschu/watch, 142 stars), Bggg Tiktok Readvideo (binggandata/bggg-skills, 605 stars) and Bggg Tiktok Cut (binggandata/bggg-skills, 605 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Karaoke Captions?
AI-Builder-Club (a GitHub organization) maintains it in AI-Builder-Club/skills, which has 1,288 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on September 15, 2026.
Source: AI-Builder-Club/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.