golang-spf13-cobra

Build Go CLI applications with spf13/cobra command trees and flag parsing.

Updated Jun 27, 2026
One-click install
npx skills add https://github.com/LuigiAPCPereira/evolutiondocs --skill golang-spf13-cobra-luigiapcpereira
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: golang-spf13-cobra
Source: https://github.com/LuigiAPCPereira/evolutiondocs/tree/main/.agents/skills/golang-spf13-cobra
Command: npx skills add https://github.com/LuigiAPCPereira/evolutiondocs --skill golang-spf13-cobra-luigiapcpereira

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires cobra, spf13/cobra, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides comprehensive guidance on using the spf13/cobra library for building robust CLI applications in Go, addressing common challenges such as command tree management, flag parsing, and completion generation.

Core Features & Use Cases

  • Command Tree Management: Offers best practices for structuring command/subcommand relationships and utilizing built-in methods for grouping and labeling commands.
  • Flag Parsing and Validation: Demonstrates how to define and manage flags, enforce constraints, and provide dynamic completions.
  • Shell Completion: Explains how to extend shell completions for flags and positional arguments.
  • Testing and Best Practices: Highlights important testing patterns, common mistakes to avoid, and general best practices for writing maintainable CLI code.
  • Use Case: If you are developing a Go CLI application and need a robust, extendable command structure, this Skill will provide the necessary insights and code patterns to achieve your goals.

Quick Start

Run the following commands to get started with cobra:

go get github.com/spf13/cobra@latest

Frequently Asked Questions about golang-spf13-cobra

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

FAQPage Schema
How do I structure command and subcommand relationships in a Go CLI?

Structure command and subcommand relationships in a Go CLI by utilizing cobra's built-in command tree management methods for grouping and labeling commands. This approach provides a robust, extendable command hierarchy for complex applications.

What is the best way to parse and validate flags in a Go command line application?

The best way to parse and validate flags in a Go command line application is using cobra to define, manage, and enforce flag constraints. It also supports dynamic completions for flag values to enhance user interaction.

Can I generate shell completions for positional arguments and flags using cobra?

Yes, you can generate shell completions for positional arguments and flags using cobra. The library provides specific mechanisms to extend and customize shell completions for a Go CLI application.

Do I need prior Go experience to use the spf13/cobra library for CLI development?

Yes, you need prior knowledge of Go and CLI development concepts to use the spf13/cobra library effectively. This guidance is designed for software engineers working on robust CLI projects.

What testing patterns should I follow when building a Go CLI with cobra?

When building a Go CLI with cobra, you should follow specific testing patterns and best practices to avoid common mistakes. This ensures your command tree, flag parsing, and completions remain maintainable.