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Skill hosting

The Skill environment of Agent.zio provides a lightweight serverless hosting platform that allows users to instantly run and deploy various scripts they write, such as Python, Shell, Node.js, etc. When you set up a web server (FastAPI, Flask, etc.), the system automatically assigns a port and offers a secure URL exposed externally.

Feature Description
Dynamic Port Allocation (Zero‑Config) When writing a web server, use os.environ.get("PORT", 8000) instead of a fixed port. The system finds an empty port in 0.1 seconds and automatically performs a cold start.
One‑Stop Preview (Built‑in IDE) Clicking the preview icon in the upper right corner of the editor allows you to test the running screen immediately inside the IDE, without opening a new browser window.
Automatic External Deployment URL A finished web skill will have an externally accessible deployment address immediately. (e.g., https://<instance‑address>:7010/skills/[skill-name]/[path])
State‑Preserving Process Regular scripts have a 30‑second timeout, but code identified as a web server framework (FastAPI, Flask, etc.) runs in a separate process permanently and automatically restarts (Auto‑Reload) when the code changes (saved).

This is a basic skeleton of a simple web server that uses dynamic ports.

import os
import uvicorn
from fastapi import FastAPI
from fastapi.staticfiles import StaticFiles
from pathlib import Path
app = FastAPI(title="My Custom Skill")
@app.get("/api/hello")
def hello():
return {"message": "Hello from Serverless Skill!"}
# 웹 페이지 렌더링을 위한 정적 폴더 마운트 (폴더명: admin 권장)
admin_dir = Path(__file__).parent / "admin"
if admin_dir.exists():
app.mount("/", StaticFiles(directory=str(admin_dir), html=True), name="admin")
if __name__ == "__main__":
# 시스템이 주입하는 PORT 환경변수를 반드시 읽어와야 합니다.
port = int(os.environ.get("PORT", 8000))
uvicorn.run(app, host="0.0.0.0", port=port)

Tip: Name the folder containing your frontend static files as admin or static if possible. The console will automatically detect HTML files in that folder and generate shortcut links for you.