Official agent skill

React Scan

by remotion-dev in remotion-dev/remotion

Capture and analyze Remotion Studio React render profiles through development-only WebMCP tools.

OfficialCustom licenceAuto-check passedMedia & Creative

Install React Scan

skills CLI

$ npx skills add remotion-dev/remotion --skill react-scan -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install remotion-dev/remotion react-scan --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/react-scan .claude/skills/react-scan && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "react-scan" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/react-scan into .claude/skills/react-scan/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react-scan", 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

$skill-installer install https://github.com/remotion-dev/remotion/tree/main/.agents/skills/react-scan

Type 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.

skills CLI

$ npx skills add remotion-dev/remotion --skill react-scan -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install remotion-dev/remotion react-scan --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/react-scan .agents/skills/react-scan && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "react-scan" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/react-scan into .agents/skills/react-scan/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react-scan", 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.

skills CLI

$ npx skills add remotion-dev/remotion --skill react-scan -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install remotion-dev/remotion react-scan --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/react-scan .cursor/skills/react-scan && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "react-scan" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/react-scan into .cursor/skills/react-scan/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react-scan", 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

$ gemini skills install https://github.com/remotion-dev/remotion.git --path .agents/skills/react-scan

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add remotion-dev/remotion --skill react-scan -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install remotion-dev/remotion react-scan --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/react-scan .gemini/skills/react-scan && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "react-scan" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/react-scan into .gemini/skills/react-scan/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react-scan", 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.

GitHub CLI

$ gh skill install remotion-dev/remotion react-scan

Installs 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).

skills CLI

$ npx skills add remotion-dev/remotion --skill react-scan -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/react-scan .github/skills/react-scan && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "react-scan" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/react-scan into .github/skills/react-scan/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react-scan", 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.

skills CLI

$ npx skills add remotion-dev/remotion --skill react-scan -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install remotion-dev/remotion react-scan --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/react-scan .opencode/skills/react-scan && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "react-scan" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/react-scan into .opencode/skills/react-scan/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "react-scan", 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: react-scan
GitHub stars: 62k
Token cost: ~786 tokens
SKILL.md length: 388 words
Files: 1
Skills in repo: 71
Repo updated: Oct 7, 2026
First seen: Oct 7, 2026
Licence: Custom licence

At a glance

Capture and analyze Remotion Studio React render profiles through development-only WebMCP tools.

Diagnosing unnecessary re-renders
SKILL.md covers Record a capture, Analyze the evidence and Verify an optimization
Calls bun
Frame-reactive component trees

What it does

React Scan is an agent skill from remotion-dev/remotion, published by the product's own GitHub organization. Capture and analyze Remotion Studio React render profiles through development-only WebMCP tools. Use when diagnosing unnecessary re-renders, slow commits, frame-reactive component trees, or when comparing render performance before and after a change.

Its SKILL.md is about 790 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 React and Remotion. The repository describes itself as: 🎥 Make videos programmatically with React.

When your agent uses it

Diagnosing unnecessary re-renders
Frame-reactive component trees
Comparing render performance before and after a change

Example prompts

“/react-scan”

What it can do on your machine

Read from SKILL.md and the folder at commit 1e4c5de. 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:
- bun
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

React Scan loads about 786 tokens when it runs. Until then it costs about 65 tokens; SKILL.md has 388 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~65
When it runs · the whole SKILL.md, loaded when a task matches: ~786

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 388 words (~786 tokens).

“Use targeted captures to optimize measured Studio interactions. Do not infer a performance problem from source alone when the workflow can be reproduced.”

— opening of SKILL.md by remotion-dev, Custom licence

name: react-scan

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/react-scan of remotion-dev/remotion.

Open the folder on GitHubat commit 1e4c5de

Compare with similar skills

React Scan 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.

React Scan compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
React Scan this skillremotion-dev/remotion	62k	—	~786	Automated safety check: Pass	Custom licence	today
Remotion Best Practiceslyonjs/shortvid.io	147	32 repos	~1k	Automated safety check: Pass	MIT	2 days ago
Remotion to HyperFrames Porterheygen-com/hyperframes	58k	3 repos	~2.8k	Automated safety check: Pass	Apache-2.0	today
Anything2explainerVincentwei1021/anything2explainer	2.3k	—	~2.7k	Automated safety check: Pass	Custom licence	19 days ago
Remotion BitsMarve10s/Better-Fullstack	752	1 repos	~8.2k	Automated safety check: Pass	MIT	today
Remotion Motion Graphicshaidrrrry/claude-remotion-skill	270	—	~2k	Automated safety check: Pass	MIT	1 mo ago

Similar skills

Remotion Best Practices
lyonjs/shortvid.io
Best practices for Remotion - Video creation in React. An agent skill from lyonjs/shortvid.io.
147 GitHub starsUsed in 32 repos~1k tokens
Media & CreativeAuto-check passed
Remotion to HyperFrames Porter
heygen-com/hyperframes
Ports an existing Remotion (React) composition to HyperFrames HTML with GSAP, one way, and grades the result against a tiered set of reference fixtures.
58k GitHub starsUsed in 3 repos~2.8k tokens
Media & CreativeAuto-check passed
Anything2explainer
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给一个主题，产出一条黑底 MG 风格（幕底可选星点或点阵波）、有配音字幕章节进度条的科普讲解视频（中文或英文；Remotion 代码动画；时长由用户定，常用 3–5 分钟）。内含可编译模板、图元库、配音/分镜/渲染工具、风格与动效规范、多 agent 分工协议与 QC 判据，以及一条完整样片（《RAG 与知识库》）作为质量标尺。Turn any topic into a narrated…
2.3k GitHub stars~2.7k tokensUpdated 19 days ago
Media & CreativeAuto-check passed
Remotion Bits
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Animation components and utilities for Remotion video projects.
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Remotion Motion Graphics
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Create and edit professional motion graphics videos with Remotion (React-based video).
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Media & CreativeAuto-check passed
Create Remotion Geist
Marve10s/Better-Fullstack
Create Remotion videos using the Geist design system aesthetic.
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Media & CreativeAuto-check passed

More from remotion-dev/remotion

All 71 skills in this repo

Gh Stack
remotion-dev/remotion
Official
Manages stacked PRs and splits multi-part work into reviewable branches with gh-stack.
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Auto-check passed
Canvas Capture Extension
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Rebuild, install, and reload the private Remotion Canvas Capture unpacked Chrome extension.
62k GitHub stars~868 tokensUpdated today
Auto-check passed
Nullable New Params
remotion-dev/remotion
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Fix newly added optional parameters, optional React props, and optional type/interface members in Remotion monorepo diffs by converting internal APIs to required nullable values and updating call…
62k GitHub stars~1k tokensUpdated today
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Vercel
remotion-dev/remotion
Official
Set up a Codex monitor for Vercel deployments and preview URLs.
62k GitHub stars~1.2k tokensUpdated today
Auto-check passed
Writing Docs
remotion-dev/remotion
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Guides for writing and editing Remotion documentation. An agent skill from remotion-dev/remotion.
62k GitHub starsUsed in 1 repo~1.9k tokens
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Find Unplanned Issues
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Audit and clean the Remotion GitHub masterplan hierarchy. An agent skill from remotion-dev/remotion.
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Works with

Questions about React Scan

What does React Scan do?

Capture and analyze Remotion Studio React render profiles through development-only WebMCP tools. React Scan is an agent skill from remotion-dev/remotion, published by the product's own GitHub organization. Capture and analyze Remotion Studio React render profiles through development-only WebMCP tools.

When should I use React Scan?

React Scan fits situations like: diagnosing unnecessary re-renders; frame-reactive component trees; comparing render performance before and after a change.

How do I install React Scan in Claude Code?

Run `npx skills add remotion-dev/remotion --skill react-scan -a claude-code`. Or copy the skill folder (.agents/skills/react-scan in remotion-dev/remotion) into .claude/skills/react-scan in your project. Claude Code loads it when a task matches its description.

How do I install React Scan in Codex?

Run `npx skills add remotion-dev/remotion --skill react-scan -a codex`. Or copy the skill folder (.agents/skills/react-scan in remotion-dev/remotion) into .agents/skills/react-scan in your project. Codex loads it when a task matches its description.

Can I use React Scan 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 remotion-dev/remotion --skill react-scan -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/react-scan, .gemini/skills/react-scan, .github/skills/react-scan and .opencode/skills/react-scan in your project.

What does React Scan need to run?

Going by SKILL.md and its folder, React Scan needs the command-line tools its instructions call (bun).

Does React Scan 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 React Scan 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 React Scan use?

React Scan 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 React Scan use?

About 786 tokens (SKILL.md is roughly 3.1k 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 React Scan?

Skills that share tags, products or a category with React Scan: Remotion Best Practices (lyonjs/shortvid.io, 147 stars), Remotion to HyperFrames Porter (heygen-com/hyperframes, 58k stars), Anything2explainer (Vincentwei1021/anything2explainer, 2.3k stars) and Remotion Bits (Marve10s/Better-Fullstack, 752 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains React Scan?

remotion-dev (a GitHub organization, an official publisher) maintains it in remotion-dev/remotion, which has 62,235 GitHub stars. The repository holds 71 skills in this directory. The repository was last updated on October 7, 2026.

Source: remotion-dev/remotion on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install React Scan

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

More from remotion-dev/remotion

Related

Questions about React Scan