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/plugins/examples/knowledge-base/commands/export.ts

@@ -0,0 +1,115 @@
+/**
+ * Knowledge Export Command
+ * Export knowledge base to various formats
+ */
+
+import { writeFileSync, readFileSync, existsSync } from 'fs'
+import { join } from 'path'
+import { homedir } from 'os'
+
+export interface ExportOptions {
+  format: 'json' | 'markdown' | 'csv'
+  outputPath?: string
+  category?: string
+}
+
+const KNOWLEDGE_FILE = join(homedir(), '.claude', 'knowledge', 'knowledge.json')
+
+interface KnowledgeEntry {
+  id: string
+  title?: string
+  content: string
+  tags: string[]
+  category: string
+  source?: string
+  timestamp: string
+}
+
+export async function handle(args: ExportOptions, context: any): Promise<string> {
+  const { format, outputPath, category } = args
+
+  try {
+    if (!existsSync(KNOWLEDGE_FILE)) {
+      return 'Knowledge base is empty. Add some knowledge first!'
+    }
+
+    const data = readFileSync(KNOWLEDGE_FILE, 'utf-8')
+    let knowledge: KnowledgeEntry[] = JSON.parse(data)
+
+    if (category) {
+      knowledge = knowledge.filter(entry => entry.category === category)
+    }
+
+    let content: string
+    let defaultPath: string
+
+    switch (format) {
+      case 'json':
+        content = JSON.stringify(knowledge, null, 2)
+        defaultPath = join(homedir(), 'knowledge-export.json')
+        break
+
+      case 'markdown':
+        content = exportAsMarkdown(knowledge)
+        defaultPath = join(homedir(), 'knowledge-export.md')
+        break
+
+      case 'csv':
+        content = exportAsCSV(knowledge)
+        defaultPath = join(homedir(), 'knowledge-export.csv')
+        break
+
+      default:
+        throw new Error(`Unknown format: ${format}`)
+    }
+
+    const output = outputPath || defaultPath
+    writeFileSync(output, content, 'utf-8')
+
+    return `✓ Exported ${knowledge.length} entries to ${output}`
+  } catch (error: any) {
+    throw new Error(`Failed to export knowledge: ${error.message}`)
+  }
+}
+
+function exportAsMarkdown(entries: KnowledgeEntry[]): string {
+  const lines: string[] = ['# Knowledge Base Export', '', `Generated: ${new Date().toISOString()}`, '']
+
+  for (const entry of entries) {
+    lines.push(`## ${entry.title || 'Untitled'}`)
+    lines.push(`**ID:** ${entry.id}`)
+    lines.push(`**Category:** ${entry.category}`)
+    lines.push(`**Tags:** ${entry.tags.join(', ') || 'none'}`)
+    lines.push(`**Date:** ${new Date(entry.timestamp).toLocaleString()}`)
+    if (entry.source) {
+      lines.push(`**Source:** ${entry.source}`)
+    }
+    lines.push('')
+    lines.push(entry.content)
+    lines.push('')
+    lines.push('---')
+    lines.push('')
+  }
+
+  return lines.join('\n')
+}
+
+function exportAsCSV(entries: KnowledgeEntry[]): string {
+  const headers = ['ID', 'Title', 'Category', 'Tags', 'Content', 'Source', 'Date']
+  const rows = entries.map(entry => [
+    entry.id,
+    entry.title || '',
+    entry.category,
+    entry.tags.join('; '),
+    `"${entry.content.replace(/"/g, '""')}"`,
+    entry.source || '',
+    entry.timestamp
+  ])
+
+  return [
+    headers.join(','),
+    ...rows.map(row => row.join(','))
+  ].join('\n')
+}
+
+export default { handle }