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create-cli

Design CLI parameters, flags, subcommands, help text, and exit codes.

Updated Feb 25, 2026
Search Tags:#design#specification#cli#ux#command-line#interface
One-click install
npx skills add https://github.com/takuto-tanaka-4digit/excel-unidiff-cli --skill create-cli-takuto-tanaka-4digit
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: create-cli
Source: https://github.com/takuto-tanaka-4digit/excel-unidiff-cli/tree/main/.codex/skills/create-cli
Command: npx skills add https://github.com/takuto-tanaka-4digit/excel-unidiff-cli --skill create-cli-takuto-tanaka-4digit

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps design the user-facing aspects of command-line interfaces (CLIs), ensuring they are intuitive, consistent, and easy to use for both humans and scripts.

Core Features & Use Cases

  • Parameter & UX Design: Defines arguments, flags, subcommands, help messages, output formats, and error handling.
  • Specification Generation: Creates a clear, implementable specification for a new CLI or refines an existing one.
  • Use Case: You need to design a new CLI tool for managing cloud resources. This Skill will help you define its commands, options, and expected behavior before you start coding.

Quick Start

Design a CLI command called 'deploy' that takes a 'config-file' argument and a '--env' flag for the environment.

Frequently Asked Questions about create-cli

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

FAQPage Schema
How do I design a command-line interface specification before coding?▼

Designing a command-line interface (CLI) specification involves defining arguments, flags, subcommands, help text, output formats, error messages, and exit codes to ensure consistency and discoverability. This Skill generates that clear, implementable specification before you start development.

What's the best way to structure CLI arguments and flags for user experience?▼

The best way to structure CLI arguments and flags is by focusing on user experience design. This involves organizing parameters for consistency, composability, and discoverability, ensuring the interface is intuitive for both humans and scripts.

Can I refine the surface design of an existing command-line tool for consistency?▼

Yes, you can refine the surface design of an existing command-line tool for consistency. This Skill helps organize existing CLIs by redesigning their parameters, subcommands, and output formats to improve overall composability and discoverability.

How do I define error messages and exit codes for a CLI?▼

Defining error messages and exit codes for a CLI is part of user experience design. This Skill specifies these elements along with help text and output formats to ensure the command-line interface handles errors consistently and communicates clearly with scripts.

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