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/list.ts

@@ -0,0 +1,74 @@
+/**
+ * Knowledge List Command
+ * List all knowledge entries
+ */
+
+import { readFileSync, existsSync } from 'fs'
+import { join } from 'path'
+import { homedir } from 'os'
+
+export interface ListOptions {
+  category?: string
+  tags?: 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: ListOptions, context: any): Promise<string> {
+  const { category, tags } = args
+
+  try {
+    if (!existsSync(KNOWLEDGE_FILE)) {
+      return 'Knowledge base is empty. Add some knowledge first!'
+    }
+
+    const data = readFileSync(KNOWLEDGE_FILE, 'utf-8')
+    const knowledge: KnowledgeEntry[] = JSON.parse(data)
+
+    // Group by category
+    const byCategory: Record<string, KnowledgeEntry[]> = {}
+
+    for (const entry of knowledge) {
+      if (category && entry.category !== category) continue
+      if (tags && !tags.some(t => entry.tags.includes(t))) continue
+
+      if (!byCategory[entry.category]) {
+        byCategory[entry.category] = []
+      }
+      byCategory[entry.category].push(entry)
+    }
+
+    if (Object.keys(byCategory).length === 0) {
+      return 'No entries found matching criteria'
+    }
+
+    // Format output
+    const lines: string[] = []
+
+    for (const [cat, entries] of Object.entries(byCategory)) {
+      lines.push(`\n📁 ${cat} (${entries.length} entries)`)
+
+      for (const entry of entries) {
+        const title = entry.title || entry.content.slice(0, 50)
+        const date = new Date(entry.timestamp).toLocaleDateString()
+        lines.push(`  • ${title} [${entry.tags.join(', ') || 'no tags'}] - ${date}`)
+      }
+    }
+
+    return `\n📚 Knowledge Base (${knowledge.length} total entries)\n${lines.join('\n')}`
+  } catch (error: any) {
+    throw new Error(`Failed to list knowledge: ${error.message}`)
+  }
+}
+
+export default { handle }