{
  "messages": [
    {
      "role": "system",
      "content": "You are a helpful AI assistant with access to tools. Use tools when they help answer the user's question. Be concise and accurate."
    },
    {
      "role": "user",
      "content": "What's the difference between browse and headless tools?"
    },
    {
      "role": "assistant",
      "content": "<think>\nBrowse vs headless — same tool surface, different browser instances. Explain when to use which.\n</think>\n\nThe `headless_*` tools are an identical 19-tool surface to `browse_*` but run a separate headless browser instance (no visible window). Same API: launch, goto, click, query, screenshot, eval_js, etc.\n\nWhen to use which:\n\n- **browse_*** — when the user wants to see what's happening, when you need to debug visually, or when sites require a visible browser (some anti-bot checks).\n- **headless_*** — when you need a second parallel browser session, when running automated scraping that doesn't need visual feedback, or when operating on a server without a display.\n\nThey are independent instances — you can have both running simultaneously. Launch browse for an interactive debugging session while headless runs a background scrape. They don't share cookies, storage, or state.\n\nBoth support stealth mode for bot detection avoidance, device emulation, and the full inspection surface (network capture, console messages, errors, metrics)."
    }
  ]
}