Rachel Digital Human Production

Codex Skill for producing authorized digital-human talking-head videos with MiniMax overseas voice cloning and HeyGen Image-to-Video.

This skill turns a repeatable production workflow into a Codex-friendly playbook:

• Validate script, portrait, and voice-source assets before paid API calls.
• Use MiniMax for voice cloning and narration.
• Use HeyGen for image-driven digital-human video.
• Generate a 15-second preview before any full video.
• Wait for explicit user approval before full 1080p generation.
• Track voice_id, asset_id, video_id, job status, and outputs in work/job-state.json.
• Keep API keys, Authorization headers, signed URLs, private portraits, voice samples, and generated client videos out of the skill package.

Install

Copy this folder into your Codex skills directory:

cp -R rachel-digital-human-production ~/.codex/skills/

Start a new Codex task, then invoke it explicitly:

Use $rachel-digital-human-production to make a 15-second digital-human preview first.

Expected Project Layout

project/
├── inputs/
│   ├── portrait.jpg
│   ├── voice-source.mp3
│   └── script.md
├── work/
│   ├── voiceover-full.mp3
│   ├── preview-15s.mp3
│   └── job-state.json
└── outputs/
    ├── preview-15s.mp4
    └── final-1080p.mp4

Environment Variables

The skill expects the user to provide their own accounts, billing, permissions, and API keys:

export MINIMAX_API_KEY="..."
export HEYGEN_API_KEY="..."

Do not commit .env files or real keys.

Helper Scripts

Create a starter state file:

scripts/init_job_state.py --project demo --out work/job-state.json

Preflight common assets before API calls:

scripts/preflight_assets.py \
  --script inputs/script.md \
  --portrait inputs/portrait.jpg \
  --voice inputs/voice-source.mp3

Safety

Use this only for authorized voice, portrait, script, and publishing workflows. Installing the skill does not grant access to MiniMax, HeyGen, OpenAI, paid credits, network access, legal clearance, or the author's files.

For public use, explicit invocation is required through $rachel-digital-human-production so paid production workflows do not trigger accidentally.

License

MIT. See LICENSE.