Build Go CLI architecture with Cobra and Viper for command routing and configuration.
npx skills add https://github.com/spf13/go-skills --skill cobra-viper
Please help me install this Agent Skill. Skill: cobra-viper Source: https://github.com/spf13/go-skills/tree/main/cobra-viper Command: npx skills add https://github.com/spf13/go-skills --skill cobra-viper
This Skill helps you design, implement, and test Go command-line applications without burying core logic inside framework code or tangled directory layouts. It reduces configuration drift, simplifies command routing, and makes CLI behavior easier to maintain.
Ask the assistant to design or refactor your Go CLI using Cobra and Viper while keeping business logic decoupled, configuration typed, and tests in memory.
High-intent search queries and answers about installing and using this skill.
To structure a Go CLI with Cobra and Viper, keep Cobra focused on flags, subcommands, and routing while maintaining independent, reusable business logic. This command-first architecture prevents core logic from getting buried inside framework code.
Managing configuration in a Go CLI is best handled by combining defaults, config files, environment variables, and flags through Viper. This unified approach uses typed config structs to prevent configuration drift and simplify maintenance.
Yes, you can exercise Cobra commands in memory for fast, deterministic testing without compiling or spawning binaries. This reliable CLI testing approach validates command behavior and ensures repeatable tests for production Go applications.
Viper supports typed configuration unmarshalling by binding defaults, config files, environment variables, and flags into typed config structs. This explicit flag binding ensures configuration is strictly typed and validated for Go commands.
Handle errors in Cobra subcommands by implementing resilient error handling with RunE and PersistentPreRunE. This context-aware approach allows subcommands to return errors directly instead of causing fatal exits, improving CLI behavior.
Go CLI configuration drift happens when flags and environment variables are not explicitly bound through a unified configuration system. Using Viper with typed config structs and explicit flag binding eliminates drift by consolidating defaults and overrides.
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