Can I use this for complex CLI tools?

Yes, the skill includes templates for subcommand dispatching and self-documenting help text, making it ideal for building sophisticated command-line utilities.

How does the skill handle error reporting?

It implements a standard error-handling pattern using specialized shout, barf, and usage functions, providing consistent exit codes and stderr messaging for better debugging.

What makes this skill different from regular shell generation?

This skill strictly adheres to POSIX standards and UNIX philosophy, ensuring scripts are portable, modular, and follow rigorous engineering practices like atomic file writes rather than simple redirection.

Does this skill support Bash-specific features?

No, this skill is specifically designed for POSIX-compliant scripts (#!/bin/sh) and avoids Bashisms to ensure maximum portability across all UNIX-like systems.

POSIX Shell Scripting

Name: POSIX Shell Scripting
Author: SuperScript

bySuperScript

Deployment & DevOps

Generates robust, POSIX-compliant shell scripts following UNIX engineering principles and rigorous coding standards.

About

This skill enables Claude to author and maintain professional-grade POSIX shell scripts that prioritize portability, reliability, and modularity. By enforcing strict quoting rules, standard error handling patterns, and atomic file operations, it transforms shell scripting from a collection of ad-hoc commands into a disciplined engineering practice. It is ideal for developers building system utilities, automation scripts, and deployment tools that must run consistently across various UNIX-like environments without Bash-specific dependencies.

Key Features

Modular script design using a library of reusable standard functions and includes
0 GitHub stars
POSIX-compliant script generation for maximum cross-platform portability
Atomic file operations via temporary files to ensure data integrity during writes
Rigorous variable quoting to prevent word-splitting and globbing errors
Self-documenting subcommand dispatch system for building complex utility tools

Use Cases

Creating modular, maintainable shell libraries for infrastructure-as-code and CI/CD tasks
Building portable system utilities that run across Linux, macOS, and BSD environments
Automating deployment pipelines with reliable error handling and standardized exit codes

About

Key Features

Modular script design using a library of reusable standard functions and includes
0 GitHub stars
POSIX-compliant script generation for maximum cross-platform portability
Atomic file operations via temporary files to ensure data integrity during writes
Rigorous variable quoting to prevent word-splitting and globbing errors
Self-documenting subcommand dispatch system for building complex utility tools

Use Cases

Creating modular, maintainable shell libraries for infrastructure-as-code and CI/CD tasks
Building portable system utilities that run across Linux, macOS, and BSD environments
Automating deployment pipelines with reliable error handling and standardized exit codes