# Media3 Video Effects Lottie Muxer

> Compact skill for Media3 video effects, Lottie effects, muxer/export decisions, and Transformer-adjacent processing boundaries.

- **Type:** Skill
- **Install:** `agentstack add skill-sunnat629-android-media-pack-media3-video-effects-lottie-muxer`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [sunnat629](https://agentstack.voostack.com/s/sunnat629)
- **Installs:** 0
- **Category:** [Content & Media](https://agentstack.voostack.com/c/content-and-media)
- **Latest version:** 0.1.0
- **License:** Apache-2.0
- **Upstream author:** [sunnat629](https://github.com/sunnat629)
- **Source:** https://github.com/sunnat629/android-media-pack/tree/main/.skills/media/processing/media3-video-effects-lottie-muxer

## Install

```sh
agentstack add skill-sunnat629-android-media-pack-media3-video-effects-lottie-muxer
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

## Trigger

Use for `media3-effect`, `media3-effect-lottie`, `media3-muxer`, visual processing, overlays, effect export, or muxed output.

## Rules

- Start with `media3-transformer-editing` when the task includes export.
- Pin Media3 to `1.10.1` through the version catalog.
- Keep effects/export code in Android source sets.
- Separate preview playback from final export; they can have different performance and fidelity constraints.
- Validate input/output container, audio preservation, frame rate, color, and device codec limits.
- Keep Lottie asset loading deterministic and bundled or cached.
- Track effect pipeline failures separately from playback failures.

## Example

```toml
media3-effect = { module = "androidx.media3:media3-effect", version.ref = "media3" }
media3-effect-lottie = { module = "androidx.media3:media3-effect-lottie", version.ref = "media3" }
media3-muxer = { module = "androidx.media3:media3-muxer", version.ref = "media3" }
```

## Do Not

- Do not apply expensive export effects directly inside Compose state updates.
- Do not assume preview output exactly matches final muxed output without validation.
- Do not mix processing errors into generic player analytics.

## Related

- `media3-transformer-editing`
- `media3-video-playback`
- `media3-inspector-metadata-thumbnails`

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [sunnat629](https://github.com/sunnat629)
- **Source:** [sunnat629/android-media-pack](https://github.com/sunnat629/android-media-pack)
- **License:** Apache-2.0

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-sunnat629-android-media-pack-media3-video-effects-lottie-muxer
- Seller: https://agentstack.voostack.com/s/sunnat629
- Browse the marketplace: https://agentstack.voostack.com/browse

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