Generate, deploy, and share single-file web utilities instantly using simple voice or text commands.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install jits-builder
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 jits-builder 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 JITS Builder?
JITS Builder is a powerful tool within the Openclaw Skills ecosystem that realizes the vision of Just-In-Time Software. It allows developers and power users to bypass the traditional development lifecycle by generating fully functional, single-file web applications on demand. Whether you need a quick data conversion tool or a focused productivity timer, this skill handles the coding, local serving, and public deployment through automated tunnels.
The core philosophy of this skill is that software should be disposable and generated at the moment of need. By leveraging vanilla JavaScript and modern CSS, JITS Builder ensures that every generated tool is lightweight, mobile-responsive, and ready for immediate use without external dependencies or complex backend requirements. It is an essential addition for those looking to expand their Openclaw Skills library with rapid prototyping capabilities.
JITS Builder Use Cases
- Rapidly prototyping utility tools like bill splitters or unit converters via voice commands.
- Generating specialized developer tools such as JSON formatters or QR code generators on the fly.
- Creating temporary, focused productivity aids like Pomodoro timers or countdowns.
- Deploying secure, temporary public URLs for sharing mini-tools with colleagues or friends.
How JITS Builder Works
- The user describes the desired tool using natural language or voice input.
- The AI agent generates a self-contained HTML file incorporating all necessary CSS and vanilla JavaScript.
- The skill saves the application and metadata to the local file system and starts a local Node.js server.
- A Cloudflare tunnel is automatically initialized to expose the local server to a secure public URL.
- The system returns the live URL to the user, allowing for immediate interaction.
JITS Builder Setup
To utilize JITS Builder, ensure you have Node.js installed on your system. The required cloudflared binary will automatically download to /tmp/ if it is not detected. This seamless integration is a hallmark of the Openclaw Skills experience.
# List all currently running JITS applications
/data/clawd/skills/jits-builder/jits.sh list
# Stop a specific application and close its tunnel
/data/clawd/skills/jits-builder/jits.sh stop <name>
JITS Builder Data Schema & Taxonomy
The skill maintains an organized directory structure for every generated app within the /data/clawd/jits-apps/ path to ensure clean management of Openclaw Skills assets:
| File Type | Extension | Purpose |
|---|---|---|
| Application | .html | The core application code (HTML, CSS, and JS) |
| Server PID | .pid | The process ID for the local Node server |
| Port Config | .port | The local port number assigned to the app |
| Public Link | .url | The active Cloudflare tunnel URL |
| Tunnel PID | .tunnel.pid | The process ID for the Cloudflare tunnel process |
JITS Builder Advanced Features
- Automated Cloudflare tunnel provisioning for instant global access without port forwarding.
- Built-in process management to track, list, and terminate active mini-apps.
- Support for client-side persistence using localStorage for data that survives page refreshes.
- Strictly vanilla JS implementation ensuring zero external dependencies and high performance.
- Mobile-first responsive design templates used for all generated utility tools.
SKILL.md
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