Migrate: Replace quick_check_skill.sh with JavaScript

[ashleyshaw]

Overview

Migrate skills/design-md-agent/*/scripts/quick_check_skill.sh (appears in 2 locations) from Bash to JavaScript with Jest test coverage.

Current Implementation

The script validates skill structure by checking:

• Skill directory exists
• SKILL.md file exists
• agents/openai.yaml file exists
• SKILL.md starts with YAML frontmatter (---)
• Frontmatter name is lowercase hyphen-case
• Frontmatter description field is present
• Folder name matches frontmatter name
• No package noise (macOS, Python, Node artifacts)
• Optional: warnings for TODO/placeholder text

Locations

1. skills/design-md-agent/figma-wordpress-skill-creator/scripts/quick_check_skill.sh
2. skills/design-md-agent/wordpress-plugin-packaging-review/scripts/quick_check_skill.sh

Requirements

• Create scripts/skill-utils/validateSkillStructure.js (single source of truth)
• Support both with/without grep exclusion pattern for TODO checks
• Return exit codes: 0 (pass), 1 (fail), 2 (usage)
• Jest tests covering all validation rules
• Console output matching original implementation
• Remove both .sh files after verification

Related

Part of #[bash-to-js-migration-epic]

[linear-code]

LS-802