Manim Video Production
browser-use/video-use
Produces math and technical explainer videos with Manim Community Edition: concept animations, equation derivations, algorithm walkthroughs and data stories.
Extracts body and hand keypoint trajectories from an authorized reference video, with skeleton previews and confidence data, for pose reference or motion control input.
Install Human Motion Extractor
$ npx skills add Pluviobyte/rnskill --skill rn-human-motion-extractor -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Pluviobyte/rnskill rn-human-motion-extractor --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/Pluviobyte/rnskill.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/rn-human-motion-extractor .claude/skills/rn-human-motion-extractor && 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 "rn-human-motion-extractor" agent skill from https://github.com/Pluviobyte/rnskill/tree/main/skills/rn-human-motion-extractor into .claude/skills/rn-human-motion-extractor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rn-human-motion-extractor", 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/Pluviobyte/rnskill/tree/main/skills/rn-human-motion-extractorType 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 Pluviobyte/rnskill --skill rn-human-motion-extractor -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Pluviobyte/rnskill rn-human-motion-extractor --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Pluviobyte/rnskill.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/rn-human-motion-extractor .agents/skills/rn-human-motion-extractor && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "rn-human-motion-extractor" agent skill from https://github.com/Pluviobyte/rnskill/tree/main/skills/rn-human-motion-extractor into .agents/skills/rn-human-motion-extractor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rn-human-motion-extractor", 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 Pluviobyte/rnskill --skill rn-human-motion-extractor -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Pluviobyte/rnskill rn-human-motion-extractor --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Pluviobyte/rnskill.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/rn-human-motion-extractor .cursor/skills/rn-human-motion-extractor && 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 "rn-human-motion-extractor" agent skill from https://github.com/Pluviobyte/rnskill/tree/main/skills/rn-human-motion-extractor into .cursor/skills/rn-human-motion-extractor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rn-human-motion-extractor", 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/Pluviobyte/rnskill.git --path skills/rn-human-motion-extractor--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 Pluviobyte/rnskill --skill rn-human-motion-extractor -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Pluviobyte/rnskill rn-human-motion-extractor --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Pluviobyte/rnskill.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/rn-human-motion-extractor .gemini/skills/rn-human-motion-extractor && 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 "rn-human-motion-extractor" agent skill from https://github.com/Pluviobyte/rnskill/tree/main/skills/rn-human-motion-extractor into .gemini/skills/rn-human-motion-extractor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rn-human-motion-extractor", 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 Pluviobyte/rnskill rn-human-motion-extractorInstalls 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 Pluviobyte/rnskill --skill rn-human-motion-extractor -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Pluviobyte/rnskill.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/rn-human-motion-extractor .github/skills/rn-human-motion-extractor && 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 "rn-human-motion-extractor" agent skill from https://github.com/Pluviobyte/rnskill/tree/main/skills/rn-human-motion-extractor into .github/skills/rn-human-motion-extractor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rn-human-motion-extractor", 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 Pluviobyte/rnskill --skill rn-human-motion-extractor -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Pluviobyte/rnskill rn-human-motion-extractor --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Pluviobyte/rnskill.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/rn-human-motion-extractor .opencode/skills/rn-human-motion-extractor && 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 "rn-human-motion-extractor" agent skill from https://github.com/Pluviobyte/rnskill/tree/main/skills/rn-human-motion-extractor into .opencode/skills/rn-human-motion-extractor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rn-human-motion-extractor", 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
rn-human-motion-extractor- GitHub stars
- 1.6k
- Token cost
- ~1k tokens
- SKILL.md length
- 458 words
- Files
- 5 (incl. scripts, references)
- Skills in repo
- 45
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Extracts body and hand keypoint trajectories from an authorized reference video, with skeleton previews and confidence data, for pose reference or motion control input.
- Works in 5 steps: Lock the range and timebase → Create a local runtime → Extract the trajectory → …
- Preparing skeleton reference data from a video you are allowed to analyze
- SKILL.md covers Boundary, Workflow and Completion gates
- Runs Python scripts from its folder; calls uv and python
What it does
Given a chosen range of a reference video, the bundled script scripts/extract_motion.py records 33 MediaPipe pose landmarks and 21 landmarks per detected hand, with raw and confidence-aware smoothed coordinates, normalized x and y, relative z, visibility, frame index and timestamp. The agent first probes the file with ffprobe for size, frame rate, duration and audio, and sets up an isolated Python environment with uv.
The skill is strict about boundaries: the reference must be public or one you are authorized to analyze, source footage and identity-preserving overlays stay in the private project workspace, and only the pure-skeleton video and keypoint data are treated as portable assets. Short gaps may be interpolated, but long ones stay missing. The agent inspects the previews and qc/extraction-stats.json before describing fidelity, and reports coverage instead of claiming exact finger motion.
When your agent uses it
- Preparing skeleton reference data from a video you are allowed to analyze
- Generating a pure-skeleton preview video of a performer's movement
- Producing machine-readable keypoints for avatar motion control
Example prompts
- “Extract the body and hand trajectories from the first part of clips/demo.mp4.”
- “Make a skeleton-only preview of the dance in ref.mp4 and report how well the hands were tracked.”
Requirements
- FFmpeg
- Python 3.10 to 3.12
- uv for the isolated environment
Workflow steps
5 steps, taken from the step headings in SKILL.md.
- Lock the range and timebase
- Create a local runtime
- Extract the trajectory
- Inspect evidence
- Deliver claims at the proved level
What it can do on your machine
Read from SKILL.md and the folder at commit 83d1783. 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 2 files in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
uvpython
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use uv, 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
Human Motion Extractor loads about 1k tokens when it runs, and up to ~1.3k if it reads all its reference files. Until then it costs about 88 tokens; SKILL.md has 458 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 458 words (~1,045 tokens).
“Convert a selected range of an authorized reference video into reusable motion data. Preserve motion and timing; do not package the source person's appearance, voice, subtitles, or footage as a reusable identity asset.”
- name
- rn-human-motion-extractor
Files
SKILL.md and 4 other files (scripts, references) in skills/rn-human-motion-extractor of Pluviobyte/rnskill.
- SKILL.md
- agents/openai.yaml
- references/keypoint-schema.md
- scripts/extract_motion.py
- scripts/requirements.txt
Open the folder on GitHubat commit 83d1783
Compare with similar skills
Human Motion Extractor 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 |
|---|---|---|---|---|---|---|
| Human Motion Extractor this skillPluviobyte/rnskill | 1.6k | — | ~1k | Automated safety check: Pass | Custom licence | |
| Manim Video Productionbrowser-use/video-use | 29k | 6 repos | ~3k | Automated safety check: Pass | MIT | |
| Vox DirectorAlisa0808/vox-director | 2.2k | — | ~5.6k | Automated safety check: Pass | MIT | |
| VectCutAPI Video Editingsun-guannan/VectCutAPI | 2.3k | — | ~2.1k | Automated safety check: Pass | Apache-2.0 | |
| Mobile Demo Film Editorsuperset-sh/superset | 15k | — | ~1.8k | Automated safety check: Pass | Custom licence | |
| Video Podcast Makerdtsola/xiaoyaosearch | 1k | — | ~3.4k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Human Motion Extractor
What does Human Motion Extractor do?
Extracts body and hand keypoint trajectories from an authorized reference video, with skeleton previews and confidence data, for pose reference or motion control input. py records 33 MediaPipe pose landmarks and 21 landmarks per detected hand, with raw and confidence-aware smoothed coordinates, normalized x and y, relative z, visibility, frame index and timestamp. The agent first probes the file with ffprobe for size, frame rate, duration and audio, and sets up an isolated Python environment with uv.
When should I use Human Motion Extractor?
Human Motion Extractor fits situations like: preparing skeleton reference data from a video you are allowed to analyze; generating a pure-skeleton preview video of a performer's movement; producing machine-readable keypoints for avatar motion control.
How do I install Human Motion Extractor in Claude Code?
Run `npx skills add Pluviobyte/rnskill --skill rn-human-motion-extractor -a claude-code`. Or copy the skill folder (skills/rn-human-motion-extractor in Pluviobyte/rnskill) into .claude/skills/rn-human-motion-extractor in your project. Claude Code loads it when a task matches its description.
How do I install Human Motion Extractor in Codex?
Run `npx skills add Pluviobyte/rnskill --skill rn-human-motion-extractor -a codex`. Or copy the skill folder (skills/rn-human-motion-extractor in Pluviobyte/rnskill) into .agents/skills/rn-human-motion-extractor in your project. Codex loads it when a task matches its description.
Can I use Human Motion Extractor 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 Pluviobyte/rnskill --skill rn-human-motion-extractor -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rn-human-motion-extractor, .gemini/skills/rn-human-motion-extractor, .github/skills/rn-human-motion-extractor and .opencode/skills/rn-human-motion-extractor in your project.
What does Human Motion Extractor need to run?
Going by SKILL.md and its folder, Human Motion Extractor needs Python for the scripts in its folder and the command-line tools its instructions call (uv and python). Our summary lists: FFmpeg; Python 3.10 to 3.12; uv for the isolated environment.
Does Human Motion Extractor access the network?
SKILL.md contains no URLs. Its commands use uv, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Human Motion Extractor 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 Human Motion Extractor use?
Human Motion Extractor 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 Human Motion Extractor use?
About 1k tokens (SKILL.md is roughly 4.2k 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 289 tokens, read only when the agent opens those files.
What are the alternatives to Human Motion Extractor?
Skills that share tags, products or a category with Human Motion Extractor: Manim Video Production (browser-use/video-use, 29k stars), Vox Director (Alisa0808/vox-director, 2.2k stars), VectCutAPI Video Editing (sun-guannan/VectCutAPI, 2.3k 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 Human Motion Extractor?
Pluviobyte (a GitHub user) maintains it in Pluviobyte/rnskill, which has 1,639 GitHub stars. The repository holds 45 skills in this directory. The repository was last updated on September 21, 2026.
Source: Pluviobyte/rnskill on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.