Reorganize: Move all skills to skills/ folder

- Created skills/ directory
- Moved 272 skills to skills/ subfolder
- Kept agents/ at root level
- Kept installation scripts and docs at root level

Repository structure:
- skills/           - All 272 skills from skills.sh
- agents/           - Agent definitions
- *.sh, *.ps1       - Installation scripts
- README.md, etc.   - Documentation

Co-Authored-By: Claude <noreply@anthropic.com>

skills/document-writer/skill.md

@@ -0,0 +1,95 @@
+---
+name: document-writer
+description: Use when writing blog posts or documentation markdown files - provides writing style guide (active voice, present tense), content structure patterns, and MDC component usage. Overrides brevity rules for proper grammar. Use nuxt-content for MDC syntax, nuxt-ui for component props.
+license: MIT
+---
+
+# Documentation Writer for Nuxt Ecosystem
+
+Writing guidance for blog posts and documentation following patterns from official Nuxt websites.
+
+## When to Use
+
+- Writing blog posts for Nuxt ecosystem projects
+- Creating or editing documentation pages
+- Ensuring consistent writing style across content
+
+## Writing Standard
+
+**Override**: When writing documentation, maintain proper grammar and complete sentences. The "sacrifice grammar for brevity" rule does NOT apply here.
+
+Documentation must be:
+
+- Grammatically correct
+- Clear and unambiguous
+- Properly punctuated
+- Complete sentences (not fragments)
+
+Brevity is still valued, but never at the cost of clarity or correctness.
+
+## Related Skills
+
+For component and syntax details, use these skills:
+
+| Skill            | Use For                                         |
+| ---------------- | ----------------------------------------------- |
+| **nuxt-content** | MDC syntax, prose components, code highlighting |
+| **nuxt-ui**      | Component props, theming, UI patterns           |
+
+## Available References
+
+| Reference                                                            | Purpose                                         |
+| -------------------------------------------------------------------- | ----------------------------------------------- |
+| **[references/writing-style.md](references/writing-style.md)**       | Voice, tone, sentence structure                 |
+| **[references/content-patterns.md](references/content-patterns.md)** | Blog frontmatter, structure, component patterns |
+
+**Load based on context:**
+
+- Writing prose → [references/writing-style.md](references/writing-style.md)
+- Blog structure and patterns → [references/content-patterns.md](references/content-patterns.md)
+
+## Quick Reference
+
+### Writing Patterns
+
+| Pattern       | Example                                            |
+| ------------- | -------------------------------------------------- |
+| Subject-first | "The `useFetch` composable handles data fetching." |
+| Imperative    | "Add the following to `nuxt.config.ts`."           |
+| Contextual    | "When using authentication, configure..."          |
+
+### Modal Verbs
+
+| Verb     | Meaning     |
+| -------- | ----------- |
+| `can`    | Optional    |
+| `should` | Recommended |
+| `must`   | Required    |
+
+### Component Patterns (WHEN to use)
+
+| Need              | Component                         |
+| ----------------- | --------------------------------- |
+| Info aside        | `::note`                          |
+| Suggestion        | `::tip`                           |
+| Caution           | `::warning`                       |
+| Required          | `::important`                     |
+| CTA               | `:u-button{to="..." label="..."}` |
+| Multi-source code | `::code-group`                    |
+
+> For component props: see **nuxt-ui** skill
+
+## Headings
+
+- **H1 (`#`)**: No backticks — they don't render properly
+- **H2-H4**: Backticks work fine
+
+## Checklist
+
+- [ ] Active voice (85%+)
+- [ ] Present tense
+- [ ] 2-4 sentences per paragraph
+- [ ] Explanation before code
+- [ ] File path labels on code blocks
+- [ ] Appropriate callout types
+- [ ] No backticks in H1 headings