Examine source code of Claude Helper

{
  "manifest_version": 2,
  "name": "Claude Helper",
  "version": "1.2",
  "description": "Allows folder uploads to Claude projects and removal of all uploaded files",
  "icons": {
    "128": "icons/claudehelper128x128.png"
  },
  "permissions": [
    "https://claude.ai/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://claude.ai/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "Claude Helper"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "claude-helper@merteraslan.github.io"
    }
  }
}