we only need one yaml lib

tools/cli/lib/agent-analyzer.js

@@ -1,4 +1,4 @@
-const yaml = require('js-yaml');
+const yaml = require('yaml');
 const fs = require('fs-extra');
 
 /**
@@ -91,7 +91,7 @@ class AgentAnalyzer {
    */
   async analyzeAgentFile(filePath) {
     const content = await fs.readFile(filePath, 'utf8');
-    const agentYaml = yaml.load(content);
+    const agentYaml = yaml.parse(content);
     return this.analyzeAgentObject(agentYaml);
   }
 

tools/cli/lib/agent/compiler.js

@@ -313,7 +313,11 @@ async function compileAgent(yamlContent, answers = {}, agentName = '', targetPat
   // Apply customization merges before template processing
   // Handle metadata overrides (like name)
   if (answers.metadata) {
-    agentYaml.agent.metadata = { ...agentYaml.agent.metadata, ...answers.metadata };
+    // Filter out empty values from metadata
+    const filteredMetadata = filterCustomizationData(answers.metadata);
+    if (Object.keys(filteredMetadata).length > 0) {
+      agentYaml.agent.metadata = { ...agentYaml.agent.metadata, ...filteredMetadata };
+    }
     // Remove from answers so it doesn't get processed as template variables
     const { metadata, ...templateAnswers } = answers;
     answers = templateAnswers;
@@ -353,6 +357,36 @@ async function compileAgent(yamlContent, answers = {}, agentName = '', targetPat
   };
 }
 
+/**
+ * Filter customization data to remove empty/null values
+ * @param {Object} data - Raw customization data
+ * @returns {Object} Filtered customization data
+ */
+function filterCustomizationData(data) {
+  const filtered = {};
+
+  for (const [key, value] of Object.entries(data)) {
+    if (value === null || value === undefined || value === '') {
+      continue; // Skip null/undefined/empty values
+    }
+
+    if (Array.isArray(value)) {
+      if (value.length > 0) {
+        filtered[key] = value;
+      }
+    } else if (typeof value === 'object') {
+      const nested = filterCustomizationData(value);
+      if (Object.keys(nested).length > 0) {
+        filtered[key] = nested;
+      }
+    } else {
+      filtered[key] = value;
+    }
+  }
+
+  return filtered;
+}
+
 /**
  * Process TTS injection markers in content
  * @param {string} content - Content to process
@@ -431,4 +465,5 @@ module.exports = {
   buildPersonaXml,
   buildPromptsXml,
   buildMenuXml,
+  filterCustomizationData,
 };

tools/cli/lib/config.js

@@ -1,5 +1,5 @@
 const fs = require('fs-extra');
-const yaml = require('js-yaml');
+const yaml = require('yaml');
 const path = require('node:path');
 const packageJson = require('../../../package.json');
 
@@ -18,7 +18,7 @@ class Config {
     }
 
     const content = await fs.readFile(configPath, 'utf8');
-    return yaml.load(content);
+    return yaml.parse(content);
   }
 
   /**

tools/cli/lib/platform-codes.js

@@ -1,6 +1,6 @@
 const fs = require('fs-extra');
 const path = require('node:path');
-const yaml = require('js-yaml');
+const yaml = require('yaml');
 const { getProjectRoot } = require('./project-root');
 
 /**
@@ -20,7 +20,7 @@ class PlatformCodes {
     try {
       if (fs.existsSync(this.configPath)) {
         const content = fs.readFileSync(this.configPath, 'utf8');
-        this.config = yaml.load(content);
+        this.config = yaml.parse(content);
       } else {
         console.warn(`Platform codes config not found at ${this.configPath}`);
         this.config = { platforms: {} };

tools/cli/lib/yaml-format.js

@@ -1,6 +1,6 @@
 const fs = require('node:fs');
 const path = require('node:path');
-const yaml = require('js-yaml');
+const yaml = require('yaml');
 const { execSync } = require('node:child_process');
 
 // Dynamic import for ES module
@@ -57,11 +57,10 @@ async function formatYamlContent(content, filename) {
     }
 
     // Parse and re-dump YAML to format it
-    const parsed = yaml.load(fixedContent);
-    const formatted = yaml.dump(parsed, {
+    const parsed = yaml.parse(fixedContent);
+    const formatted = yaml.stringify(parsed, {
       indent: 2,
-      lineWidth: -1, // Disable line wrapping
-      noRefs: true,
+      lineWidth: 0, // Disable line wrapping
       sortKeys: false, // Preserve key order
     });
     // Ensure POSIX-compliant final newline
@@ -96,7 +95,6 @@ async function processMarkdownFile(filePath) {
     const [fullMatch, yamlContent] = match;
     const formatted = await formatYamlContent(yamlContent, filePath);
     if (formatted !== null) {
-      // Remove trailing newline that js-yaml adds
       const trimmedFormatted = formatted.replace(/\n$/, '');
 
       if (trimmedFormatted !== yamlContent) {

tools/cli/lib/yaml-xml-builder.js

@@ -1,4 +1,4 @@
-const yaml = require('js-yaml');
+const yaml = require('yaml');
 const fs = require('fs-extra');
 const path = require('node:path');
 const crypto = require('node:crypto');
@@ -64,13 +64,13 @@ class YamlXmlBuilder {
   async loadAndMergeAgent(agentYamlPath, customizeYamlPath = null) {
     // Load base agent
     const agentContent = await fs.readFile(agentYamlPath, 'utf8');
-    const agentYaml = yaml.load(agentContent);
+    const agentYaml = yaml.parse(agentContent);
 
     // Load customization if exists
     let merged = agentYaml;
     if (customizeYamlPath && (await fs.pathExists(customizeYamlPath))) {
       const customizeContent = await fs.readFile(customizeYamlPath, 'utf8');
-      const customizeYaml = yaml.load(customizeContent);
+      const customizeYaml = yaml.parse(customizeContent);
 
       if (customizeYaml) {
         // Special handling: persona fields are merged, but only non-empty values override