fix: correct invalid skill `name` fields to kebab-case

[sjnims]

Summary

Six of seven skills in the plugin-dev plugin have invalid name fields in their YAML frontmatter. Per the official Claude Code skills documentation:

Name: Must use lowercase letters, numbers, and hyphens only (max 64 characters)

The current skills use Title Case with spaces, which violates this specification.

Affected Skills

Skill Directory	Current name	Correct name
agent-development	agent-development	✅ Already correct
command-development	Command Development	❌ → command-development
mcp-integration	MCP Integration	❌ → mcp-integration
plugin-structure	Plugin Structure	❌ → plugin-structure
skill-development	Skill Development	❌ → skill-development
plugin-settings	Plugin Settings	❌ → plugin-settings
hook-development	Hook Development	❌ → hook-development

Files to Update

• plugins/plugin-dev/skills/command-development/SKILL.md
• plugins/plugin-dev/skills/mcp-integration/SKILL.md
• plugins/plugin-dev/skills/plugin-structure/SKILL.md
• plugins/plugin-dev/skills/skill-development/SKILL.md
• plugins/plugin-dev/skills/plugin-settings/SKILL.md
• plugins/plugin-dev/skills/hook-development/SKILL.md

Example Fix

# FROM:
---
name: Command Development
description: This skill should be used when...
---

# TO:
---
name: command-development
description: This skill should be used when...
---

Acceptance Criteria

• All 6 affected skill name fields updated to kebab-case
• Names match their directory names exactly
• No other changes to SKILL.md files
• Plugin loads correctly after changes

Priority

Critical - Invalid name fields may cause skill discovery issues per official spec.

References

• Official Skills Documentation
• Plugins Reference

[github-actions]

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[sjnims]

PR submitted: #6