Motion Designer
Hainrixz/editor-pro-max
Advanced motion designer with decades of After Effects and motion graphics experience, specialized in creating engaging video specifications for Remotion.
“Add a new sound effect to @remotion/sfx”
Install Add Sfx
$ npx skills add remotion-dev/remotion --skill add-sfx -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install remotion-dev/remotion add-sfx --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/remotion-dev/remotion.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/add-sfx .claude/skills/add-sfx && 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 "add-sfx" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/add-sfx into .claude/skills/add-sfx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-sfx", 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/remotion-dev/remotion/tree/main/.agents/skills/add-sfxType 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 remotion-dev/remotion --skill add-sfx -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install remotion-dev/remotion add-sfx --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/add-sfx .agents/skills/add-sfx && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "add-sfx" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/add-sfx into .agents/skills/add-sfx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-sfx", 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 remotion-dev/remotion --skill add-sfx -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install remotion-dev/remotion add-sfx --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/add-sfx .cursor/skills/add-sfx && 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 "add-sfx" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/add-sfx into .cursor/skills/add-sfx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-sfx", 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/remotion-dev/remotion.git --path .agents/skills/add-sfx--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 remotion-dev/remotion --skill add-sfx -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install remotion-dev/remotion add-sfx --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/add-sfx .gemini/skills/add-sfx && 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 "add-sfx" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/add-sfx into .gemini/skills/add-sfx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-sfx", 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 remotion-dev/remotion add-sfxInstalls 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 remotion-dev/remotion --skill add-sfx -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/add-sfx .github/skills/add-sfx && 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 "add-sfx" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/add-sfx into .github/skills/add-sfx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-sfx", 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 remotion-dev/remotion --skill add-sfx -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install remotion-dev/remotion add-sfx --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/remotion-dev/remotion.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/add-sfx .opencode/skills/add-sfx && 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 "add-sfx" agent skill from https://github.com/remotion-dev/remotion/tree/main/.agents/skills/add-sfx into .opencode/skills/add-sfx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-sfx", 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
add-sfx- GitHub stars
- 62k
- Token cost
- ~816 tokens
- SKILL.md length
- 352 words
- Files
- 1
- Skills in repo
- 70
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
- Works in 7 steps: Add to remotion.media repo (must be done… → Add the export to… → Create a doc page at… → …
- SKILL.md covers Prerequisites, Steps, Naming conventions and Version
- Calls bun; reaches remotion.dev and remotion.media
About this skill
Add Sfx is an official skill in remotion-dev/remotion (62k stars). Its SKILL.md is about 816 tokens. Licence: Custom licence.
Workflow steps
7 steps, taken from the step headings in SKILL.md.
- Add to remotion.media repo (must be done first)
- Add the export to packages/sfx/src/index.ts
- Create a doc page at packages/docs/docs/sfx/.mdx
- Register in sidebar and table of contents
- Regenerate SFX waveforms
- Update the skills rule file
- Build
What it can do on your machine
Read from SKILL.md and the folder at commit 4d2a66f. 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
Hosts in commands or code, which the agent is likely to contact:
remotion.devremotion.media
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
Add Sfx loads about 816 tokens when it runs. Until then it costs about 12 tokens; SKILL.md has 352 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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NoteMentions a .env fileSKILL.md:9
be deployed using `bun run build`. The `.env` may be missing if we are in a worktree, but on the main non-worktree bran
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 352 words (~816 tokens).
“Sound effects must first be added to the remotion.media package. Then it can be deployed using bun run build. The .env may be missing if we are in a worktree, but on the main non-worktree branch it should be present.”
- name
- add-sfx
Files
Just SKILL.md in .agents/skills/add-sfx of remotion-dev/remotion.
Open the folder on GitHubat commit 4d2a66f
Compare with similar skills
Add Sfx 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 |
|---|---|---|---|---|---|---|
| Add Sfx this skillremotion-dev/remotion | 62k | — | ~816 | Automated safety check: Notes | Custom licence | |
| Motion DesignerHainrixz/editor-pro-max | 261 | — | ~2.3k | Automated safety check: Pass | Custom licence | |
| Sound Effects Planner for Shortshassancs91/claude-faceless-shorts-creator | 271 | — | ~2.6k | Automated safety check: Notes | MIT | |
| Suggest Sfxhassancs91/claude-youtube-editor | 322 | — | ~3k | Automated safety check: Pass | MIT | |
| Video Polishgooseworks-ai/goose-skills | 1.2k | 1 repos | ~3.5k | Automated safety check: Notes | MIT | |
| Stitch to Remotion Walkthrough Videosgoogle-labs-code/stitch-skills | 8.4k | 6 repos | ~3.2k | Automated safety check: Notes | Apache-2.0 |
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Sound Effects Planner for Shorts
hassancs91/claude-faceless-shorts-creator
Proposes beat-synced sound effects for a rendered short from a reusable library, then mixes an audition preview under the voice once you approve the plan.
Suggest Sfx
hassancs91/claude-youtube-editor
Step 4 of the AI Video Editor pipeline — the SFX pass. An agent skill from hassancs91/claude-youtube-editor.
Video Polish
gooseworks-ai/goose-skills
Takes an existing screen recording or demo video and adds professional zoom/pan effects synchronized to the narration.
- Official
Stitch to Remotion Walkthrough Videos
google-labs-code/stitch-skills
Builds walkthrough videos from Stitch design projects using Remotion, with transitions, zoom effects and text overlays on each screen.
Video Shotcraft
Vincentwei1021/video-shotcraft
Makes cinematic product videos with Remotion from shot recipe cards, a ready template, real page screenshots, camera moves and sound design, or builds a single animated shot.
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Related
Works with
Categories
Questions about Add Sfx
How do I install Add Sfx in Claude Code?
Run `npx skills add remotion-dev/remotion --skill add-sfx -a claude-code`. Or copy the skill folder (.agents/skills/add-sfx in remotion-dev/remotion) into .claude/skills/add-sfx in your project. Claude Code loads it when a task matches its description.
How do I install Add Sfx in Codex?
Run `npx skills add remotion-dev/remotion --skill add-sfx -a codex`. Or copy the skill folder (.agents/skills/add-sfx in remotion-dev/remotion) into .agents/skills/add-sfx in your project. Codex loads it when a task matches its description.
Can I use Add Sfx 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 add-sfx -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-sfx, .gemini/skills/add-sfx, .github/skills/add-sfx and .opencode/skills/add-sfx in your project.
What does Add Sfx need to run?
Going by SKILL.md and its folder, Add Sfx needs the command-line tools its instructions call (bun).
Does Add Sfx access the network?
SKILL.md names 2 domains. In commands or code: remotion.dev and remotion.media; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.
Is Add Sfx safe to install?
Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Add Sfx use?
Add Sfx 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 Add Sfx use?
About 816 tokens (SKILL.md is roughly 3.3k 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 Add Sfx?
Skills that share tags, products or a category with Add Sfx: Motion Designer (Hainrixz/editor-pro-max, 261 stars), Sound Effects Planner for Shorts (hassancs91/claude-faceless-shorts-creator, 271 stars), Suggest Sfx (hassancs91/claude-youtube-editor, 322 stars) and Video Polish (gooseworks-ai/goose-skills, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Add Sfx?
remotion-dev (a GitHub organization, an official publisher) maintains it in remotion-dev/remotion, which has 62,407 GitHub stars. The repository holds 70 skills in this directory. The repository was last updated on October 8, 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.