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12-factor-app

Implement twelve-factor app principles for scalable service design.

Updated Mar 28, 2026
Search Tags:#devops#scalability#config#deploy#twelve-factor#stateless#backing-services
One-click install
npx skills add https://github.com/mechemsi/claude-template --skill 12-factor-app-mechemsi
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: 12-factor-app
Source: https://github.com/mechemsi/claude-template/tree/main/skills/12-factor-app
Command: npx skills add https://github.com/mechemsi/claude-template --skill 12-factor-app-mechemsi

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Designs and guides the creation of scalable, production-ready services by codifying best practices into a simple, repeatable framework.

Core Features & Use Cases

  • Environment-driven config: store all settings in environment variables rather than code, enabling seamless deployment across dev, test, staging, and production.
  • Stateless processes with attached backing services: run your web and worker processes independently and swap databases, queues, or caches without code changes.
  • Deployment discipline and observability: enforce separate build, release, and run stages; emit logs to stdout for centralized capture; provide admin one-offs for migrations and maintenance.
  • Use Cases: when creating a new service or hard-to-deploy app, apply the twelve-factor rules to achieve portability and resilience.

Quick Start

Adopt the twelve-factor guidelines in your next service project to ensure portability and production-readiness.

Frequently Asked Questions about 12-factor-app

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

FAQPage Schema
What is the best way to design stateless processes for scalable production services?▼

Stateless processes run web and worker components independently while attaching databases, queues, or caches as backing services, enabling independent scaling and swapping without code changes.

How do I manage configuration across dev, staging, and production environments?▼

Environment-driven configuration stores all settings in environment variables rather than code, enabling seamless deployment across dev, test, staging, and production without modifications.

Why does my deployment workflow need separate build, release, and run stages?▼

Separate build, release, and run stages enforce deployment discipline by isolating compilation, environment configuration, and process execution to ensure consistent releases across environments.

How do I handle centralized logging for a twelve-factor app?▼

Twelve-factor apps emit logs directly to stdout for centralized capture, allowing the execution environment to route event streams to analysis platforms without application-level log management.

Can I apply the twelve-factor methodology to existing applications that are hard to deploy?▼

Yes, existing applications can adopt the twelve-factor guidelines to decouple config, enforce stateless processes, and separate deployment stages to achieve portability and resilience.

When do I need to run admin tasks as one-off processes in a scalable service?▼

Admin tasks such as database migrations and maintenance run as one-off processes within the app environment, using the same codebase and config while remaining isolated from long-running web processes.

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