review(skills): llm-rag-patterns-dev

## Skill Review

**Skill**: `llm-rag-patterns-dev`
**Category**: llm

## Review Checklist

### Structure
- [ ] SKILL.md exists and has valid frontmatter
- [ ] SKILL.md is under 500 lines (use progressive disclosure if needed)
- [ ] Has Overview section
- [ ] Has Quick Reference section
- [ ] Has Troubleshooting section (if applicable)

### Naming Convention
- [ ] Follows pattern: `-[-]-`
- [ ] Focus is valid (ops, dev, eng, nub, xec)
- [ ] Name uses lowercase and hyphens only

### Quality
- [ ] Description is action-oriented and under 200 chars
- [ ] Description contains trigger words for when to use
- [ ] Examples are included where helpful
- [ ] No time-sensitive information
- [ ] Consistent terminology throughout

## Validation Command

```bash
just validate-skill components/skills/llm-rag-patterns-dev
```