A professional video packaging skill that automates the addition of motion graphics, transitions, and subtitles.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install overlay-skill
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install overlay-skill using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Overlay Skill?
The Overlay Skill is a robust toolset built for AI agents to automate high-quality video post-production. It provides a bridge between raw footage and professional-grade content by programmatically adding intros, outros, and lower thirds. As part of the Openclaw Skills library, it simplifies complex FFmpeg and MoviePy workflows into manageable, template-driven commands.
This skill is particularly valuable for developers building automated content pipelines. It supports a wide range of visual styles—from modern business aesthetics to high-energy cyberpunk themes—ensuring that every video generated via Openclaw Skills meets professional standards without manual editing.
Overlay Skill Use Cases
- Automatically branding videos with logos and watermarks.
- Generating localized subtitles and chapter titles for international audiences.
- Creating consistent intro and outro sequences for video series.
- Applying cinematic transitions and lower thirds to interview footage.
How Overlay Skill Works
- The AI agent selects a core feature such as adding subtitles or a transition.
- A specific visual template is chosen from the preset directory to maintain brand consistency.
- The agent configures parameters like text strings, timestamps, and file paths.
- A dedicated Python script is triggered, utilizing FFmpeg or MoviePy to process the video.
- The finalized video is rendered with all overlays baked in and delivered to the user.
Overlay Skill Setup
To begin using this skill within the Openclaw Skills environment, ensure your Python environment is ready and FFmpeg is installed. You can trigger specific effects using the following command structure:
# Example: Adding a lower third
python /home/ubuntu/skills/overlay-skill/scripts/add_lower_third.py --input raw_video.mp4 --output branded_video.mp4 --title "Lead Developer" --subtitle "Openclaw Skills Expert" --template modern
Overlay Skill Data Schema & Taxonomy
The skill organizes its resources into specialized directories to ensure efficient processing and easy customization within the Openclaw Skills framework:
/scripts/: Contains the primary Python logic for every visual enhancement category./templates/presets.json: A configuration file defining styles like modern, cyberpunk, and business./references/: Includes technical documentation for the FFmpeg and MoviePy engines.
Overlay Skill Advanced Features
- Dual-engine processing supporting both MoviePy and FFmpeg logic.
- Highly customizable template system for unique brand identities.
- Precise time-alignment for subtitles and dynamic text overlays.
- Scalable architecture for processing multiple video streams simultaneously using Openclaw Skills.
SKILL.md
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