Tunneling

Skill elprogramador-kaik/skills/skills/tunneling

Create free SSH tunnels to expose local ports to the internet using tinyfi.sh. Use when you need to share a locally running app, test webhooks, demo a prototype, or get a public HTTPS URL for any local service — no signup or authentication required.From its SKILL.md

Install

npx -y skills add elprogramador-kaik/skills --skill tunneling

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SKILL.md

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TinyFish Tunneling Service (tinyfi.sh)

Creates instant public HTTPS URLs for locally running apps via SSH tunneling. Free, no account, no installation beyond SSH.

Pre-flight Check (REQUIRED)

Verify SSH is available (it almost always is):

which ssh && echo "SSH available" || echo "SSH not found — install OpenSSH first"

Quick Start

Expose a local port to the internet:

ssh -o StrictHostKeyChecking=accept-new -R 80:localhost:<PORT> tinyfi.sh

Replace <PORT> with the port your app is running on. The command will print a public https://<random>.tinyfi.sh URL.

Custom Subdomain

Request a specific subdomain instead of a random one:

ssh -o StrictHostKeyChecking=accept-new -R myname:80:localhost:<PORT> tinyfi.sh

This gives you https://myname.tinyfi.sh.

Keep-Alive (Stable Connections)

For long-running tunnels, add a keep-alive interval to prevent disconnection:

ssh -o StrictHostKeyChecking=accept-new -o ServerAliveInterval=60 -R 80:localhost:<PORT> tinyfi.sh

Usage Guidelines

When starting a tunnel for the user:

Ask which port to expose if not already specified
Run the SSH command in the background so the agent can continue working
Report the public URL back to the user once the tunnel is established
The tunnel stays open as long as the SSH connection is alive

Common Ports

Framework / Tool	Default Port
Next.js / React / Express	3000
Vite	5173
Django	8000
Flask	5000
Go (net/http)	8080
Ruby on Rails	3000
PHP (built-in)	8000

Rate Limits

5 SSH connections per minute per IP
100 HTTP requests per minute per IP
50 concurrent connections max
48-hour idle timeout

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.