A cloud-powered video processing tool that automatically generates and syncs professional captions for social media content.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install best-auto-caption
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 best-auto-caption 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 Best Auto Caption?
Best Auto Caption is a specialized tool designed for creators who need fast, accurate subtitle generation without taxing their local hardware. By utilizing Openclaw Skills, this agent connects to high-performance cloud GPU nodes to handle complex video rendering and audio-to-text synchronization. It is specifically optimized for short-form content like TikToks and Reels, as well as long-form YouTube tutorials, providing a seamless bridge between raw footage and captioned, ready-to-publish media.
This skill eliminates the manual labor of timing subtitles by using advanced intent classification and automated timeline mapping. Whether you are a content marketer or a developer advocate, using this within the ecosystem of Openclaw Skills ensures a streamlined workflow for video post-production, supporting files up to 500MB and delivering 1080p exports in less than a minute.
Best Auto Caption Use Cases
- Automatically generate subtitles for YouTube videos and TikTok clips to increase accessibility.
- Rapidly render 1080p MP4 files with synced captions for social media marketing campaigns.
- Batch process multiple video clips within a single session for efficient content creation using Openclaw Skills.
- Add text overlays and synchronized audio tracks to raw footage via simple natural language commands.
How Best Auto Caption Works
- The skill initializes a connection by verifying a NEMO_TOKEN or acquiring an anonymous session token from the backend API.
- Users upload video files (MP4, MOV, WebM) which are stored in a secure cloud session.
- Natural language prompts are processed via SSE (Server-Sent Events) to trigger specific actions like subtitle generation or track editing.
- The backend GPU nodes composite the video layers, apply text overlays, and sync the audio tracks based on the timeline draft.
- A final export command triggers the cloud render pipeline, providing a downloadable high-quality MP4 link.
Best Auto Caption Setup
To begin using this skill, ensure you have your environment variables configured. Openclaw Skills will look for a primary environment token to authenticate requests.
# Set your API token
export NEMO_TOKEN="your_nemo_token_here"
# The skill also utilizes configuration files stored at:
# ~/.config/nemovideo/
If no token is provided, the skill will automatically attempt to generate a UUID and fetch a free starter token via the anonymous auth endpoint.
Best Auto Caption Data Schema & Taxonomy
The skill organizes its data using a structured session model that tracks the timeline and media assets. This is essential for maintaining consistency across Openclaw Skills operations.
| Key | Description |
|---|---|
| session_id | Unique identifier for the current editing project |
| task_id | The specific task associated with the render pipeline |
| draft | The JSON representation of the timeline, including tracks (t) and segments (sg) |
| track_type | Mapping for assets: 0 for Video, 1 for Audio, 7 for Text |
| credits | Real-time balance of available processing units |
Best Auto Caption Advanced Features
- Real-time progress monitoring through SSE heartbeats and status updates.
- Support for multi-layered timelines allowing simultaneous video, BGM, and text track management.
- Automatic GUI instruction translation, mapping visual commands to complex API actions.
- Intelligent retry logic and error handling for session expirations or rate limits within Openclaw Skills.
- Cloud-side composition supporting H.264 compression for optimal social platform compatibility.
SKILL.md
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