create-cli

Generate a comprehensive CLI specification covering commands, arguments, flags, and UX.

130|15|Updated Dec 14, 2025
One-click install
npx skills add https://github.com/jMerta/codex-skills --skill create-cli-jmerta
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: create-cli
Source: https://github.com/jMerta/codex-skills/tree/main/create-cli
Command: npx skills add https://github.com/jMerta/codex-skills --skill create-cli-jmerta

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps teams design a consistent CLI surface, capturing commands, arguments, flags, help text, usage syntax, error handling, and configuration rules so automation and humans interact with predictable, well-documented interfaces.

Core Features & Use Cases

  • Structured CLI spec: capture the command tree, usage, options, and subcommands with clear semantics.
  • Help, output & UX guidelines: define help text, default behavior, and machine-friendly outputs like JSON or plain text.
  • Configuration & safety: specify environment/config precedence, prompts, and validation rules to prevent destructive or ambiguous actions.

Quick Start

Draft a CLI spec for a hypothetical tool named backupctl. Define a top-level command with subcommands (e.g., create, list, restore), global flags (e.g., --config, --verbose, --dry-run), and example invocations. Include a usable USAGE synopsis, an options table, and at least two concrete examples showing JSON and plain-text outputs.

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 CLI interface with consistent commands and flags?

To design a CLI interface, generate a comprehensive specification capturing the command tree, arguments, flags, and help text. This ensures consistent semantics, predictable scripting interactions, and well-documented usage syntax for both new tools and refactoring projects.

What should be included in a CLI specification for predictable scripting?

A CLI specification should include a structured USAGE section, an explicit options table, environment and configuration precedence guidance, practical invocation examples, and robust error and exit-code mappings to ensure predictable scripting behavior.

How do I standardize help text and output formats for command line tools?

Standardize help text and output formats by defining UX guidelines within your CLI spec, specifying default behaviors, and detailing machine-friendly outputs like JSON or plain text to ensure automation and humans interact predictably.

How do I prevent destructive actions when building a command line interface?

Prevent destructive or ambiguous actions in a CLI by specifying configuration precedence, defining validation rules, and establishing prompt guidelines within the specification to enforce safety before execution.

Can I use this CLI design approach for refactoring an existing command line tool?

Yes, this CLI design approach targets both new CLI design and refactoring projects. It captures existing commands, arguments, and flags into a structured specification to standardize interfaces and improve automation predictability.

What is the best way to document CLI environment variables and configuration precedence?

The best way to document environment variables and configuration precedence is to include explicit guidance within the CLI specification, ensuring users understand how global flags and config files interact during command execution.