Video Post Production
AnastasiyaW/codex-claude-code-config
Video post-production rules: audio mastering, color, captions, platform export.
Make an explainer video (MP4) with a voice-over using explainroo.
Install Explainroo
$ npx skills add vincentsch/explainroo --skill explainroo -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install vincentsch/explainroo explainroo --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/vincentsch/explainroo.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/explainroo .claude/skills/explainroo && 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 "explainroo" agent skill from https://github.com/vincentsch/explainroo/tree/main/skills/explainroo into .claude/skills/explainroo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "explainroo", 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/vincentsch/explainroo/tree/main/skills/explainrooType 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 vincentsch/explainroo --skill explainroo -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install vincentsch/explainroo explainroo --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vincentsch/explainroo.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/explainroo .agents/skills/explainroo && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "explainroo" agent skill from https://github.com/vincentsch/explainroo/tree/main/skills/explainroo into .agents/skills/explainroo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "explainroo", 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 vincentsch/explainroo --skill explainroo -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install vincentsch/explainroo explainroo --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vincentsch/explainroo.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/explainroo .cursor/skills/explainroo && 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 "explainroo" agent skill from https://github.com/vincentsch/explainroo/tree/main/skills/explainroo into .cursor/skills/explainroo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "explainroo", 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/vincentsch/explainroo.git --path skills/explainroo--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 vincentsch/explainroo --skill explainroo -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install vincentsch/explainroo explainroo --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vincentsch/explainroo.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/explainroo .gemini/skills/explainroo && 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 "explainroo" agent skill from https://github.com/vincentsch/explainroo/tree/main/skills/explainroo into .gemini/skills/explainroo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "explainroo", 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 vincentsch/explainroo explainrooInstalls 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 vincentsch/explainroo --skill explainroo -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/vincentsch/explainroo.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/explainroo .github/skills/explainroo && 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 "explainroo" agent skill from https://github.com/vincentsch/explainroo/tree/main/skills/explainroo into .github/skills/explainroo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "explainroo", 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 vincentsch/explainroo --skill explainroo -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install vincentsch/explainroo explainroo --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vincentsch/explainroo.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/explainroo .opencode/skills/explainroo && 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 "explainroo" agent skill from https://github.com/vincentsch/explainroo/tree/main/skills/explainroo into .opencode/skills/explainroo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "explainroo", 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
explainroo- GitHub stars
- 489
- Token cost
- ~439 tokens
- SKILL.md length
- 174 words
- Files
- 1
- Skills in repo
- 1
- Repo updated
- First seen
- Licence
- MIT
At a glance
Make an explainer video (MP4) with a voice-over using explainroo.
- The user asks for an explainer
- SKILL.md covers Find or install explainroo, Read AGENTS.md and Make the video
- Calls node, git and npm
- An animated diagram with a voice-over
What it does
Explainroo is an agent skill from vincentsch/explainroo. Make an explainer video (MP4) with a voice-over using explainroo. The voice is made on this computer and no API key is needed. Use when the user asks for an explainer, how-to, walkthrough, launch or tutorial video, an animated diagram with a voice-over, or a short for YouTube, Reels or TikTok.
Its SKILL.md is about 440 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 and Text to speech and voice. It works with TikTok, YouTube, FFmpeg and JavaScript. The repository describes itself as: Explainer videos and product demos made by your AI agent. Free and open source: a local voice (Kokoro), word timing (Whisper) and a canvas renderer turn a script into a narrated… The licence is MIT.
When your agent uses it
- The user asks for an explainer
- An animated diagram with a voice-over
- A short for YouTube
Example prompts
- “/explainroo”
Requirements
- Node.js
What it can do on your machine
Read from SKILL.md and the folder at commit 5347905. 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:
nodegitnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git and npm, which can reach the network depending on how they are called.
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
Explainroo loads about 439 tokens when it runs. Until then it costs about 76 tokens; SKILL.md has 174 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
The full file from vincentsch/explainroo at commit 5347905, republished under its MIT licence (© vincentsch). 174 words, ~439 tokens.
Download SKILL.mdSave it as
.claude/skills/explainroo/SKILL.md (or your agent's skills folder).- name
- explainroo
- description
- Make an explainer video (MP4) with a voice-over using explainroo. The voice is made on this computer and no API key is needed. Use when the user asks for an explainer, how-to, walkthrough, launch or tutorial video, an animated diagram with a voice-over, or a short for YouTube, Reels or TikTok.
Make an explainer video with explainroo
explainroo makes an MP4 video from two files: a script with the words the voice says, and a small JavaScript file that draws the pictures. A voice model on this computer reads the script. explainroo writes down when each word is spoken, Chrome draws the frames, and explainroo adds music and sound effects.
Find or install explainroo
Try these first:
command -v explainroo
ls "${EXPLAINROO_HOME:-$HOME/.explainroo}/bin/explainroo.js"If neither exists, install it. It needs Node.js 20.11 or newer, ffmpeg, and Chrome or Chromium.
git clone https://github.com/vincentsch/explainroo.git "$HOME/.explainroo"
cd "$HOME/.explainroo" && npm install
node bin/explainroo.js doctor --fetchIn the rest of this file, explainroo means whichever one you found: the
explainroo command, or node "$HOME/.explainroo/bin/explainroo.js".
Read AGENTS.md
AGENTS.md in the explainroo folder has the steps, the writing rules, the
settings and the Scene API, which is the list of everything scenes.js can
draw. Read it before you start.
Make the video
Create the project where the user wants it, for example ./video:
explainroo init video --theme paper --title "..."Then follow the steps in AGENTS.md. When the video is done, tell the user
where video/out/video.mp4 is, how long it is, and what
explainroo verify video said.
© vincentsch, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/explainroo of vincentsch/explainroo.
Open the folder on GitHubat commit 5347905
Compare with similar skills
Explainroo 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 |
|---|---|---|---|---|---|---|
| Explainroo this skillvincentsch/explainroo | 489 | — | ~439 | Automated safety check: Pass | MIT | |
| Video Post ProductionAnastasiyaW/codex-claude-code-config | 154 | — | ~1.7k | Automated safety check: Pass | MIT | |
| Ffmpeg Skillkajisho5/ffmpeg-skill | 1.9k | — | ~7.4k | Automated safety check: Pass | MIT | |
| ShowtimeFavioVazquez/showtime | 178 | — | ~3k | Automated safety check: Pass | MIT | |
| Motion Adfabricioctelles/skills | 106 | — | ~4.1k | Automated safety check: Pass | Apache-2.0 | |
| Watchmathiaschu/watch | 141 | — | ~4k | Automated safety check: Warn | MIT |
Similar skills
Ffmpeg Skill
kajisho5/ffmpeg-skill
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…
Showtime
FavioVazquez/showtime
A skill your agent uses when the user wants a video made, edited or finished: a launch or promo, product demo, explainer, trailer or teaser, tutorial or walkthrough, a screen recording turned into a…
Motion Ad
fabricioctelles/skills
Produce a short motion-graphics video ad — a 15s Facebook/Instagram/TikTok spot — as a rendered MP4.
Watch
mathiaschu/watch
Watch a video from YouTube, Instagram, X/Twitter, Vimeo, TikTok or any of ~1800 yt-dlp sites (or a local path).
Video Editor
minicoohei/ai-agent-camp
TikTok/YouTube向け動画編集スキル。ffmpegでキャプション焼き込み、 Ken Burnsエフェクト、シーン結合、音声合成を行う。
Related
Works with
Categories
Questions about Explainroo
What does Explainroo do?
Make an explainer video (MP4) with a voice-over using explainroo. Explainroo is an agent skill from vincentsch/explainroo. Make an explainer video (MP4) with a voice-over using explainroo.
When should I use Explainroo?
Explainroo fits situations like: the user asks for an explainer; an animated diagram with a voice-over; A short for YouTube.
How do I install Explainroo in Claude Code?
Run `npx skills add vincentsch/explainroo --skill explainroo -a claude-code`. Or copy the skill folder (skills/explainroo in vincentsch/explainroo) into .claude/skills/explainroo in your project. Claude Code loads it when a task matches its description.
How do I install Explainroo in Codex?
Run `npx skills add vincentsch/explainroo --skill explainroo -a codex`. Or copy the skill folder (skills/explainroo in vincentsch/explainroo) into .agents/skills/explainroo in your project. Codex loads it when a task matches its description.
Can I use Explainroo 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 vincentsch/explainroo --skill explainroo -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/explainroo, .gemini/skills/explainroo, .github/skills/explainroo and .opencode/skills/explainroo in your project.
What does Explainroo need to run?
Going by SKILL.md and its folder, Explainroo needs the command-line tools its instructions call (node, git and npm). Our summary lists: Node.js.
Does Explainroo access the network?
SKILL.md contains no URLs. Its commands use git and npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Explainroo 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 Explainroo use?
Explainroo is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Explainroo use?
About 439 tokens (SKILL.md is roughly 1.8k 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 Explainroo?
Skills that share tags, products or a category with Explainroo: Video Post Production (AnastasiyaW/codex-claude-code-config, 154 stars), Ffmpeg Skill (kajisho5/ffmpeg-skill, 1.9k stars), Showtime (FavioVazquez/showtime, 178 stars) and Motion Ad (fabricioctelles/skills, 106 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Explainroo?
vincentsch (a GitHub user) maintains it in vincentsch/explainroo, which has 489 GitHub stars. The repository was last updated on October 4, 2026.
Source: vincentsch/explainroo on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.