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twelve-factor-port-binding

Analyze the port-binding aspect of the Twelve-Factor App for self-contained services.

1|Updated Apr 4, 2026
Search Tags:#audit#software-engineering#twelve-factor#design-review#self-contained#port-binding
One-click install
npx skills add https://github.com/niboj/agent-skills-12-factor-app --skill twelve-factor-port-binding
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: twelve-factor-port-binding
Source: https://github.com/niboj/agent-skills-12-factor-app/tree/main/skills/twelve-factor-port-binding
Command: npx skills add https://github.com/niboj/agent-skills-12-factor-app --skill twelve-factor-port-binding

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Ce skill permet d'analyser le facteur VII du Twelve-Factor App afin de vérifier que l'application expose son service via un port et demeure auto-contenue, sans dépendre d'un conteneur web injecté.

Core Features & Use Cases

  • Vérification que l'application écoute sur un port configuré et que le service est accessible via ce port.
  • Garantie que l'application est auto-contenue et ne requiert pas d'injection d'un serveur externe.
  • Cas d'usage: audits, revues de conception et refactorisations pour des applications destinées à tourner sur port sans serveur externe injecté.

Quick Start

Lancer ce skill sur le projet cible pour vérifier que l'application écoute sur un port configuré et ne dépend pas d'un serveur web externe injecté.

Frequently Asked Questions about twelve-factor-port-binding

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I verify my self-contained app exposes its service via port binding?▼

To verify port binding for self-contained apps, run an audit to check that the application listens on a configurable port and exposes its service directly without depending on an injected external web server.

What does the Twelve-Factor App port binding factor require for self-contained apps?▼

The Twelve-Factor App port binding factor requires self-contained apps to listen on a configured port and expose their service directly via that port, using port binding as the surface for inter-process communication.

Can I use a port binding audit during a design review for app refactorings?▼

Yes, you can use a port binding audit during design reviews and refactorings to verify applications run on a configured port without requiring an injected external web server to function.

Why does my application still depend on an injected external web server?▼

Your application depends on an injected external web server because it fails the Twelve-Factor App port binding factor, meaning it does not listen on a configurable port to independently expose its service.

Do I need an external web server to expose my application service via a port?▼

No, a self-contained app following the Twelve-Factor App port binding principle does not need an external web server; it must listen on a configured port and serve as its own standalone surface for inter-process communication.

How do I audit inter-process communication via port binding in my application?▼

Audit inter-process communication by verifying the application is self-contained and uses port binding as the surface for inter-process communication, ensuring it listens directly on a configured port for service exposure.

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