New agent skill

GOAL: create a new skill directory, standard sub-folders, and a compliant SKILL.md template based on the local reference guide.

WHEN: you need to create a new skill for the agent.

Prerequisites

• The skills/ directory must exist.
• The requested skill name requires kebab-case (lowercase, alphanumeric, dashes).
• references/skill-reference-guide.md must exist.

Efficiency directives

• Create all directories and files in a single pass.
• Optimize all operations for agent, token, and context efficiency.