add-sfx SKILL.md skillA
add-sfx from moizibnyousaf/marketing-cli is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add moizibnyousaf/marketing-cli/add-sfx@git:20260504.6ea1fd4Pins git:20260504.6ea1fd4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- moizibnyousaf/marketing-cli
- Path
skills/remotion-best-practices/references/upstream-internal/skills/add-sfx/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260504.6ea1fd4, committed May 4, 2026
- Size
- 2,507 bytes
- Repository stars
- 34
- License
- MIT
Add a new sound effect to @remotion/sfx.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
## Prerequisites
Sound effects must first be added to the [remotion.media](https://github.com/remotion-dev/remotion.media) repository. 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:
1. Add the WAV file to the root of the repo
2. Add an entry to the `soundEffects` array in `generate.ts`:
```ts
{
fileName: "my-sound.wav",
attribution:
"Description by Author -- https://source-url -- License: Creative Commons 0",
},
```
3. Run `bun generate.ts` to copy it to `files/` and regenerate `variants.json`
4. 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`).
```ts
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:
…Read the whole file at its exact version.
How to install
mdr add moizibnyousaf/marketing-cli/add-sfx@sha256:af0f045ab3247611The line at the top of this page pins the label git:20260504.6ea1fd4, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_7cnaowuragkonmhx)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 4, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2507 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
moizibnyousaf/marketing-cli · 34 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7cnaowuragkonmhx GET https://markdownregistry.com/api/v1/resolve?ref=moizibnyousaf/marketing-cli/add-sfx GET https://markdownregistry.com/api/v1/blob/af0f045ab32476114360761edeb7091e4636c1f22b8ded03e72eb3a923a522f0
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.