fix: restore missing files (package.json etc) and fix sync script logic

scripts/ci/validate-agents.js

@@ -0,0 +1,67 @@
+#!/usr/bin/env node
+/**
+ * Validate agent markdown files have required frontmatter
+ */
+
+const fs = require('fs');
+const path = require('path');
+
+const AGENTS_DIR = path.join(__dirname, '../../agents');
+const REQUIRED_FIELDS = ['model', 'tools'];
+
+function extractFrontmatter(content) {
+  // Strip BOM if present (UTF-8 BOM: \uFEFF)
+  const cleanContent = content.replace(/^\uFEFF/, '');
+  // Support both LF and CRLF line endings
+  const match = cleanContent.match(/^---\r?\n([\s\S]*?)\r?\n---/);
+  if (!match) return null;
+
+  const frontmatter = {};
+  const lines = match[1].split('\n');
+  for (const line of lines) {
+    const colonIdx = line.indexOf(':');
+    if (colonIdx > 0) {
+      const key = line.slice(0, colonIdx).trim();
+      const value = line.slice(colonIdx + 1).trim();
+      frontmatter[key] = value;
+    }
+  }
+  return frontmatter;
+}
+
+function validateAgents() {
+  if (!fs.existsSync(AGENTS_DIR)) {
+    console.log('No agents directory found, skipping validation');
+    process.exit(0);
+  }
+
+  const files = fs.readdirSync(AGENTS_DIR).filter(f => f.endsWith('.md'));
+  let hasErrors = false;
+
+  for (const file of files) {
+    const filePath = path.join(AGENTS_DIR, file);
+    const content = fs.readFileSync(filePath, 'utf-8');
+    const frontmatter = extractFrontmatter(content);
+
+    if (!frontmatter) {
+      console.error(`ERROR: ${file} - Missing frontmatter`);
+      hasErrors = true;
+      continue;
+    }
+
+    for (const field of REQUIRED_FIELDS) {
+      if (!frontmatter[field]) {
+        console.error(`ERROR: ${file} - Missing required field: ${field}`);
+        hasErrors = true;
+      }
+    }
+  }
+
+  if (hasErrors) {
+    process.exit(1);
+  }
+
+  console.log(`Validated ${files.length} agent files`);
+}
+
+validateAgents();