- Installs
- 2.6K
- Last 24h
- +9
- Trending rank
- #8998
- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/remotion-dev/remotion --skill add-sfx- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads add-sfx automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Prerequisites
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.
The source of truth is generate.ts in that repo. A sound effect must exist there before it can be added to @remotion/sfx.
Sound effects must be:
- WAV format
- CC0 (Creative Commons 0) licensed
- Normalized to peak at -3dB
Steps
1. Add to remotion.media repo (must be done first)
In the remotion-dev/remotion.media repo:
- Add the WAV file to the root of the repo
- Add an entry to the
soundEffectsarray ingenerate.ts:{ fileName: "my-sound.wav", attribution: "Description by Author -- https://source-url -- License: Creative Commons 0", }, - Run
bun generate.tsto copy it tofiles/and regeneratevariants.json - Deploy
2. Add the export to packages/sfx/src/index.ts
Use camelCase for the variable name. Avoid JavaScript reserved words (e.g. use uiSwitch not switch).
export const mySound = 'https://remotion.media/my-sound.wav';
3. Create a doc page at packages/docs/docs/sfx/<name>.mdx
Follow the pattern of existing pages (e.g. whip.mdx). Include:
- Frontmatter with
image,title(camelCase export name),crumb: '@remotion/sfx' <AvailableFrom>tag with the next release version<PlayButton>import and usage- Description
- Example code using
@remotion/media's<Audio>component - Value section with the URL in a fenced code block
- Duration section (fetch the file and use
afinfoon macOS to get duration/format) - Attribution section with source link and license
- Convert section with a full-link sentence:
[Open this file on remotion.dev/convert](https://remotion.dev/convert?url=<encoded-sfx-url>) - See also section linking to related sound effects
4. Register in sidebar and table of contents
packages/docs/sidebars.ts— add'sfx/<name>'to the@remotion/sfxcategory itemspackages/docs/docs/sfx/table-of-contents.tsx— add a<TOCItem>with a<PlayButton size={32}>
5. Regenerate SFX waveforms
After the sound is added to packages/remotion-media and exported from packages/sfx/src/index.ts, regenerate the waveform samples used by the docs:
bun packages/docs/generate-sfx-waveforms.ts
This uses ffmpeg to sample every exported sound effect into around 2000 waveform samples and updates packages/docs/components/sfx-demos/sfx-waveforms.ts.
6. Update the skills rule file
Add the new URL to the list in packages/skills/skills/remotion-markup/sfx.md.
7. Build
cd packages/sfx && bun run make
Naming conventions
| File name | Export name |
|---|---|
my-sound.wav | mySound |
switch.wav | uiSwitch (reserved word) |
page-turn.wav | pageTurn |
Version
Use the current version from packages/core/src/version.ts.
For docs <AvailableFrom>, increment the patch version by 1.
FAQ
What does the add-sfx skill do?
Add a new sound effect to @remotion/sfx
How do I install add-sfx?
Run npx skills add https://github.com/remotion-dev/remotion --skill add-sfx in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/add-sfx/ (personal) or .claude/skills/add-sfx/ (project).
Which AI agents can use add-sfx?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is add-sfx safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains add-sfx?
It is published by remotion-dev in remotion-dev/remotion, and it is an official skill from the maker of the technology it covers. It has 2,571 recorded installs.
More from remotion-dev/remotion
web-renderer-test
remotion-dev/remotion
Add explicitly requested web renderer tests or update existing ones for implementation changes.
writing-docs
remotion-dev/remotion
Guides for writing and editing Remotion documentation. Use when adding docs pages, editing MDX files in packages/docs, or writing documentation content.
video-report
remotion-dev/remotion
Generate a report about a video
docs-demo
remotion-dev/remotion
Add an interactive demo to the Remotion documentation. Use when creating a new component for docs pages.
add-expert
remotion-dev/remotion
Add a new expert to the Remotion experts page
make-pr
remotion-dev/remotion
Open a pull request for the current feature
Popular media & creative skills
hyperframes
heygen-com/hyperframes
Read first to make, edit, animate or render any video with HyperFrames (HTML rendered to video), including launch films, explainers, music videos, charts, maps, vertical clips, title cards, captions and overlays. Holds the render contract, the work loop and what each kind of video needs.
media-use
heygen-com/hyperframes
Get or make any media for a HyperFrames video - music, sound effects, images, icons, logos, voiceover, avatar and generated video, transcripts, cutouts, colour grades and looks - with HeyGen or free local tools, and mix placed audio. Also for footage that looks dark, flat or dull, or should be stylized or hidden.
hyperframes-registry
heygen-com/hyperframes
About 450 ready-made HyperFrames blocks and components installed as editable source - transitions, overlays, titles, kinetic type, captions, charts, map overlays, 3D, camera moves. Use it before hand-building any named visual (CRT scanlines, glitch, film grain, a chart); also for hyperframes add and catalog.
hyperframes-creative
heygen-com/hyperframes
Non-animation creative direction for HyperFrames videos. Use for design spec (frame.md / design.md) handling, palettes, typography, narration, beat planning, audio-reactive visuals, composition patterns, and brand / style decisions. For atomic motion patterns and scene blueprints, use hyperframes-animation.
ai-video-generation
101-skills/superpowers
Generate AI videos with Google Veo, Seedance 2.0, HappyHorse, Wan, Grok and 40+ models via inference.sh CLI. Models: Veo 3.1, Veo 3, Seedance 2.0, HappyHorse 1.0, Wan 2.5, Grok Imagine Video, OmniHuman, Fabric, HunyuanVideo. Capabilities: text-to-video, image-to-video, reference-to-video, video editing, lipsync, avatar animation, video upscaling, foley sound. Use for: social media videos, marketing content, explainer videos, product demos, AI avatars. Triggers: video generation, ai video, text to video, image to video, veo, animate image, video from image, ai animation, video generator, generate video, t2v, i2v, ai video maker, create video with ai, runway alternative, pika alternative, sora alternative, kling alternative, seedance, happyhorse
ai-image-generation
101-skills/superpowers
Generate AI images with GPT-Image-2, FLUX, Gemini, Grok, Seedream, Reve and 50+ models via inference.sh CLI. Models: GPT-Image-2, FLUX Dev LoRA, FLUX.2 Klein LoRA, Gemini 3 Pro Image, Grok Imagine, Seedream 4.5, Reve, ImagineArt. Capabilities: text-to-image, image-to-image, inpainting, LoRA, image editing, upscaling, text rendering. Use for: AI art, product mockups, concept art, social media graphics, marketing visuals, illustrations. Triggers: flux, image generation, ai image, text to image, stable diffusion, generate image, ai art, midjourney alternative, dall-e alternative, text2img, t2i, image generator, ai picture, create image with ai, generative ai, ai illustration, grok image, gemini image, gpt image, openai image, chatgpt image