twelve-factor-app
Applies the Twelve-Factor App methodology when designing, building, reviewing, or auditing cloud-native and SaaS applications. Use when asked about 12-factor compliance, app architecture for cloud platforms, environment configuration, stateless processes, deployment pipelines, service design, or scaling strategies. Covers all 12 factors: codebase, dependencies, config, backing services, build/release/run, processes, port binding, concurrency, disposability, dev/prod parity, logs, and admin processes.