Building Skills

This skill auto-invokes whenever you attempt to create, update, or modify a Claude Code skill. Use it when you need help designing a skill's architecture, validating YAML frontmatter (like 'allowed-tools'), or determining if a new feature should be a Skill, an Agent, or a Command.

Building Skills is a specialized capability for Claude Code that streamlines the creation, validation, and standardization of new skills. It provides expert architectural guidance, generates directory structures, and performs automated schema checks to ensure your skills are built to professional standards.

It eliminates manual errors by providing automated validation for naming conventions and schema requirements. It also optimizes tool permission patterns and manages complex resource paths using the {baseDir} variable, allowing for faster deployment of new Claude capabilities.

The skill includes a validation script that checks for correct directory structures, YAML syntax, required fields (name and description), gerund-form naming conventions, and ensures that critical errors—like using prohibited model fields or incorrect tool list formats—are identified before deployment.

Claude Code requires 'allowed-tools' to be a comma-separated string rather than a YAML list. This skill automatically checks and corrects this formatting, ensuring your pre-approved permissions work correctly to provide a seamless, prompt-free user experience.