Golang configuration

Skill ComeOnOliver/skillshub/skills/HoangNguyen0403/agent-skills-standard/golang-configuration

Standards for application configuration using environment variables and libraries. Use when managing Go application config with environment variables or viper. (triggers: configs/**, cmd/**, configuration, env var, viper, koanf)From its SKILL.md

Install

npx -y skills add ComeOnOliver/skillshub --skill golang-configuration

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

SKILL.md

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Golang Configuration Standards

Priority: P1 (STANDARD)

Principles

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

Libraries

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

Pattern

Define Config struct.
Load from defaults.
Override from file (optional).
Override from Env (priority).
Validate.

References

Config Pattern

Anti-Patterns

No hardcoded secrets: Load all secrets from env vars or a secret manager.
No global config vars: Return a typed Config struct and inject it via constructors.
No startup without validation: Crash immediately on missing required env vars.

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.