Atlas / Skills / calesthio / Avatar Video

Avatar VideoSAFE

skills/calesthio/avatar-video

World's first open-source, agentic video production system. 12 production pipelines, 100+ tools, 700+ agent skill and production-knowledge files. Turn your AI coding assistant into a full video production studio.

Verdict
SAFE
Grade
B
Trust score
89 /100
Version
—
Hosts
1 documented
License
AGPL-3.0
Stars
71,037
01

Overview

World's first open-source, agentic video production system. 12 production pipelines, 100+ tools, 700+ agent skill and production-knowledge files. Turn your AI coding assistant into a full video production studio.

Read from source at commit b11cfc9f47c1OBSERVED · 2026-10-23
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02

Host compatibility

What the documentation claims. We have not run a compatibility test.

HostStatusNotes
openclawmentioned
03

What it tells the agent

The instruction file, verbatim from the audited commit — this is the text the model reads, and the surface the audit's instruction layer examines. Quoted here so you can judge it without cloning anything.

---
name: avatar-video
description: |
  Create AI avatar videos with precise control over avatars, voices, scripts, scenes, and backgrounds using HeyGen's v2 API. Use when: (1) Choosing a specific avatar and voice for a video, (2) Writing exact scripts for an avatar to speak, (3) Building multi-scene videos with different backgrounds per scene, (4) Creating transparent WebM videos for compositing, (5) Using talking photos as video presenters, (6) Integrating HeyGen avatars with Remotion, (7) Batch video generation with exact specs, (8) Brand-consistent production videos with precise control.
homepage: https://docs.heygen.com/reference/create-a-video
allowed-tools: mcp__heygen__*
metadata:
  openclaw:
    requires:
      env:
        - HEYGEN_API_KEY
    primaryEnv: HEYGEN_API_KEY
---

# Avatar Video

Create AI avatar videos with full control over avatars, voices, scripts, scenes, and backgrounds. Build single or multi-scene videos with exact configuration using HeyGen's `/v2/video/generate` API.

## Authentication

All requests require the `X-Api-Key` header. Set the `HEYGEN_API_KEY` environment variable.

```bash
curl -X GET "https://api.heygen.com/v2/avatars" \
  -H "X-Api-Key: $HEYGEN_API_KEY"
```

## Tool Selection

If HeyGen MCP tools are available (`mcp__heygen__*`), **prefer them** over direct HTTP API calls — they handle authentication and request formatting automatically.

| Task | MCP Tool | Fallback (Direct API) |
|------|----------|----------------------|
| Check video status / get URL | `mcp__heygen__get_video` | `GET /v2/videos/{video_id}` |
| List account videos | `mcp__heygen__list_videos` | `GET /v2/videos` |
| Delete a video | `mcp__heygen__delete_video` | `DELETE /v2/videos/{video_id}` |

Video generation (`POST /v2/video/generate`) and avatar/voice listing are done via direct API calls — see reference files below.

## Default Workflow

1. **List avatars** — `GET /v2/avatars` → pick an avatar, preview it, note `avatar_id` and `default_voice_id`. See [avatars.md](references/avatars.md)
2. **List voices** (if needed) — `GET /v2/voices` → pick a voice matching the avatar's gender/language. See [voices.md](references/voices.md)
3. **Write the script** — Structure scenes with one concept each. See [scripts.md](references/scripts.md)
4. **Generate the video** — `POST /v2/video/generate` with avatar, voice, script, and background per scene. See [video-generation.md](references/video-generation.md)
5. **Poll for completion** — `GET /v2/videos/{video_id}` until status is `completed`. See [video-status.md](references/video-status.md)

## Quick Reference

| Task | Read |
|------|------|
| List and preview avatars | [avatars.md](references/avatars.md) |
| List and select voices | [voices.md](references/voices.md) |
| Write and structure scripts | [scripts.md](references/scripts.md) |
| Generate video (single or multi-scene) | [video-generation.md](references/video-generation.md) |
| Add custom backgrounds | [backgrounds.md](references/backgrounds.md) |
| Add captions / subtitles | [captions.md](references/captions.md) |
| Add text overlays | [text-overlays.md](references/text-overlays.md) |
| Create transparent WebM video | [video-generation.md](references/video-generation.md) (WebM section) |
| Use templates | [templates.md](references/templates.md) |
| Create avatar from photo | [photo-avatars.md](references/photo-avatars.md) |
| Check video status / download | [video-status.md](references/video-status.md) |
| Upload assets (images, audio) | [assets.md](references/assets.md) |
| Use with Remotion | [remotion-integration.md](references/remotion-integration.md) |
| Set up webhooks | [webhooks.md](references/webhooks.md) |

## When to Use This Skill vs Create Video

This skill is for **precise control** — you choose the avatar, write the exact script, configure each scene.

If the user just wants to **describe a video idea** and let AI handle the rest (script, avatar, visuals), use the **create-video** skill instead.

| User Says | Create Video Skill | This Skill |
|-----------|:------------------:|:----------:|
| "Make me a video about X" | ✓ | |
| "Create a product demo" | ✓ | |
| "I want avatar Y to say exactly Z" | | ✓ |
| "Multi-scene video with different backgrounds" | | ✓ |
| "Transparent WebM for compositing" | | ✓ |
| "Use this specific voice for my script" | | ✓ |
| "Batch generate videos with exact specs" | | ✓ |

## Reference Files

### Core Video Creation
- [references/avatars.md](references/avatars.md) - Listing avatars, styles, avatar_id selection
- [references/voices.md](references/voices.md) - Listing voices, locales, speed/pitch
- [references/scripts.md](references/scripts.md) - Writing scripts, pauses, pacing
- [references/video-generation.md](references/video-generation.md) - POST /v2/video/generate and multi-scene videos

### Video Customization
- [references/backgrounds.md](references/backgrounds.md) - Solid colors, images, video backgrounds
- [references/text-overlays.md](references/text-overlays.md) - Adding text with fonts and positioning
- [references/captions.md](references/captions.md) - Auto-generated captions and subtitles

### Advanced Features
- [references/templates.md](references/templates.md) - Template listing and variable replacement
- [references/photo-avatars.md](references/photo-avatars.md) - Creating avatars from photos
- [references/webhooks.md](references/webhooks.md) - Webhook endpoints and events

### Integration
- [references/remotion-integration.md](references/remotion-integration.md) - Using HeyGen in Remotion compositions

### Foundation
- [references/video-status.md](references/video-status.md) - Polling patterns and download URLs
- [references/assets.md](references/assets.md) - Uploading images, videos, audio
- [references/dimensions.md](references/dimensions.md) - Resolution and aspect ratios
- [references/quota.md](references/quota.md) - Credit system and usage limits

## Best Practices

1. **Preview avatars before generating** —
04

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeNA
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
none-observed
Shell
none-observed
Dependencies
pinned
Secrets in source
none-found

Findings (0)

No findings outside the package's declared scope.

Gates applied: no_behavioural_pass.

Audited 2026-10-23 · audit v0.4.1 · source sha b11cfc9f47c1full audit observations/trust-audit/skill/calesthio__avatar-video.json · Report an issue / request a re-scan
05

Audit history

Every audit this skill has had.

DateSourceVerdictGradeScoreChange
2026-10-23b11cfc9f47c1SAFEB89first audit
06

Questions

What does the avatar-video — calesthio/openmontage skill do?

World's first open-source, agentic video production system. 12 production pipelines, 100+ tools, 700+ agent skill and production-knowledge files. Turn your AI coding assistant into a full video production studio.

Is avatar-video — calesthio/openmontage safe to install?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean skill reads B.

What can avatar-video — calesthio/openmontage access on my machine?

The audit observed no filesystem, network or shell use at all in its source.

Which assistants does avatar-video — calesthio/openmontage work with?

Its documentation mentions openclaw. That is what the text claims, not a compatibility test we ran.

How current is this page?

The grade is for one exact copy of the source (b11cfc9f47c1), read on 2026-10-23. The repository is watched, and a new audit runs when it changes — this is the first audit.

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