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picocli-command

Generate Picocli CLI command skeletons with options, converters, and tests.

Updated Aug 23, 2026
Search Tags:#scaffolding#cli#command#generate#unit-tests#hexagonal-architecture#picocli
One-click install
npx skills add https://github.com/edercnj/ia-dev-environment --skill picocli-command
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: picocli-command
Source: https://github.com/edercnj/ia-dev-environment/tree/main/src/main/resources/claude/skills/picocli-command
Command: npx skills add https://github.com/edercnj/ia-dev-environment --skill picocli-command

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Generating boilerplate for Picocli-based CLIs is repetitive and error-prone; this skill automates creation of command classes, options, converters, and tests to accelerate development.

Core Features & Use Cases

  • Generates a complete @Command class implementing Callable<Integer> with proper annotations.
  • Creates @Option and @Parameters fields including type converters and exit-code handling.
  • Produces unit tests that exercise the command via CommandLine.execute() to validate behavior.

Quick Start

Invoke the /picocli-command trigger with a CommandName to generate a complete command skeleton.

Frequently Asked Questions about picocli-command

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

FAQPage Schema
How do I generate Picocli CLI commands with unit tests automatically?▼

You can generate a Picocli CLI command skeleton by invoking the skill with a CommandName, which produces a complete @Command class, @Option fields, and unit tests executable via CommandLine.execute().

Can I scaffold a CLI command following hexagonal architecture using Picocli?▼

Yes, the Picocli command generation creates a command skeleton based on the hexagonal architecture pattern, implementing a Command class with proper annotations, options, parameters, and exit-code handling.

What does a generated Picocli command skeleton include for scalable CLI tools?▼

The generated Picocli command skeleton includes a @Command class implementing Callable<Integer>, @Option and @Parameters fields with type converters, exit-code handling, and unit tests validating behavior via CommandLine.execute().

Do I need any dependencies to auto-generate Picocli CLI command skeletons?▼

No dependencies are required to run this generation skill itself, but your Java project must include the Picocli library to compile and execute the generated command classes and their associated unit tests.

Why generate boilerplate for Picocli-based CLIs instead of writing commands manually?▼

Generating boilerplate for Picocli-based CLIs accelerates development by automating the creation of repetitive command classes, options, converters, and tests, reducing the error-prone manual setup process.

How do I test Picocli commands using CommandLine.execute()?▼

The skill produces unit tests that exercise your Picocli command behavior via CommandLine.execute(), validating the generated command class, option parsing, and exit codes without manual test scaffolding.

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