Examine source code of YouTube Comment Summarizer

{
  "manifest_version": 3,
  "name": "YouTube Comment Summarizer",
  "version": "1.3.0",
  "description": "Securely summarizes YouTube video comments using Claude, OpenAI, or Gemini AI with enhanced privacy and security features.",
  "author": "Your Extension Team",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "youtube-comment-summarizer@extension.local"
    }
  },
  "permissions": [
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "*://*.youtube.com/*",
    "https://api.anthropic.com/*",
    "https://api.openai.com/*",
    "https://generativelanguage.googleapis.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/watch*"
      ],
      "css": [
        "style.css"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; connect-src 'self' https://api.anthropic.com https://api.openai.com https://generativelanguage.googleapis.com; style-src 'self' 'unsafe-inline'"
  },
  "minimum_chrome_version": "88",
  "action": {
    "default_title": "YouTube Comment Summarizer",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  }
}