Examine source code of Default Search with Anthropic

{
  "declarative_net_request": {
    "rule_resources": [
      {
        "path": "rules.json",
        "enabled": false,
        "id": "bypass_rules"
      }
    ]
  },
  "browser_specific_settings": {
    "gecko_android": {
      "strict_min_version": "109.0"
    },
    "gecko": {
      "strict_min_version": "106.0",
      "id": "{2dcb0f8a-f9de-4b46-899b-e11f8efc92f4}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "description": "Set Claude as the default search engine (on install prompt), omnibox keyword claude, selection menus, and optional redirect toggle for claude.ai links.",
  "default_locale": "en",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "host_permissions": [
    "https://claude.ai/*",
    "*://*/*",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "version": "2.1.9",
  "omnibox": {
    "keyword": "claude"
  },
  "manifest_version": 3,
  "content_scripts": [
    {
      "matches": [
        "https://claude.ai/*"
      ],
      "run_at": "document_idle",
      "js": [
        "content.js"
      ]
    }
  ],
  "action": {
    "default_title": "Claude Search",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "permissions": [
    "storage",
    "declarativeNetRequest",
    "contextMenus",
    "tabs",
    "clipboardWrite"
  ],
  "chrome_settings_overrides": {
    "search_provider": {
      "search_url": "https://claude.ai/new?q={searchTerms}",
      "name": "Claude",
      "keyword": "claude.ai",
      "encoding": "UTF-8",
      "is_default": true,
      "favicon_url": "icons/icon48.png"
    }
  },
  "name": "Claude Search"
}