Golang Configuration

SkillFiles & storage

Load and validate application configuration from environment variables and config files. Use when managing Go application config with environment variables or viper.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Golang Configuration skill

What this skill tells your AI

The instructions your AI receives, as published by hoangnguyen0403/agent-skills-standard in skills/golang/golang-configuration/SKILL.md and read by ahel’s review.

Priority: P1 (HIGH)

Principles

  • 12-Factor App: Store config in environment variables.
  • Typed Config: Load config into struct, validate immediately.
  • Secrets: Never commit secrets. Use env vars or secret managers.
  • No Globals: Return Config struct and inject it.

Implementation Workflow

  1. Define Config struct — Create typed struct with all required fields.
  2. Load defaults — Set sensible defaults for non-secret values.
  3. Override from file — Optionally load from YAML/JSON config file.
  4. Override from env — Environment variables take highest priority.
  5. Validate at startup — Crash immediately on missing required config.
  6. Inject via constructor — Pass Config to services; never use global config vars.

See config struct and usage examples

Libraries

  • Standard Lib: os.Getenv for simple apps.
  • Viper: Industry standard for complex configs (env, files, remote).
  • Koanf: Lighter, cleaner alternative to Viper.
  • Caarlos0/env: Strict struct tagging approach.

Anti-Patterns

  • No hardcoded secrets: load all secrets from env vars or secret manager.
  • No global config vars: return typed Config struct and inject via constructors.
  • No silent startup: crash immediately on missing required env vars.

References

Signals

GitHub stars
565
Forks
163
Last commit
Sep 2026
Advanced
Catalog kind
skill
Gateway key
golang-configuration
Source
github.com/hoangnguyen0403/agent-skills-standard