Examine source code of Job Clipper

{
  "manifest_version": 2,
  "name": "Job Clipper",
  "version": "1.0.0",
  "description": "Extract job postings from LinkedIn, Indeed, and other job sites into markdown format for career-agent",
  "icons": {
    "48": "icons/icon-48.svg",
    "96": "icons/icon-48.svg"
  },
  "permissions": [
    "activeTab",
    "clipboardWrite"
  ],
  "browser_action": {
    "default_icon": {
      "48": "icons/icon-48.svg"
    },
    "default_title": "Job Clipper",
    "default_popup": "popup/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.linkedin.com/jobs/*",
        "*://*.indeed.com/*",
        "*://boards.greenhouse.io/*",
        "*://jobs.lever.co/*"
      ],
      "js": [
        "content-scripts/extractors/base.js",
        "content-scripts/extractors/linkedin.js",
        "content-scripts/extractors/indeed.js",
        "content-scripts/extractors/greenhouse.js",
        "content-scripts/extractors/lever.js",
        "content-scripts/extractors/generic.js",
        "content-scripts/detector.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "job-clipper@career-agent",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}