Guides the design, implementation, and auditing of high-quality, POSIX-compliant command-line interfaces.
CLI Craft is a specialized skill for Claude Code designed to help developers build professional-grade command-line tools. Drawing from industry standards like clig.dev and 12-factor app principles, it provides structured guidance on designing intuitive subcommand hierarchies, managing exit codes, and ensuring proper separation of stdout and stderr. Whether you are sketching a new CLI contract or auditing an existing tool for CI/CD compatibility, this skill ensures your terminal applications are discoverable, scriptable, and follow established GNU/POSIX patterns.
Key Features
01Best practices for TTY detection and machine-readable JSON output
022 GitHub stars
03Automated compliance auditing using specialized Python scripts
04Guidance on robust exit code mapping and error handling
05Standardized CLI contract design for commands, flags, and arguments
06Templates for help text, versioning, and environment variable integration
Use Cases
01Standardizing help documentation and error messaging across a suite of tools
02Building a new multi-command developer tool from the ground up
03Refactoring an existing CLI to ensure compatibility with CI/CD environments
