4.3 Browser Options (All Profiles)

Control browser behavior for queries and authentication.

Available Options

{
  // Visibility
  "headless": true,        // Run without visible window (default: true)
  "show": false,          // Show browser window (default: false)

  // Performance
  "timeout_ms": 30000,    // Operation timeout (default: 30000)

  // Viewport
  "viewport": {
    "width": 1920,        // Default: 1920
    "height": 1080        // Default: 1080
  },

  // Stealth mode (human-like behavior)
  "stealth": {
    "enabled": true,           // Master switch (default: true)
    "human_typing": true,      // Simulate typing speed (default: true)
    "random_delays": true,     // Random pauses (default: true)
    "mouse_movements": true,   // Realistic mouse moves (default: true)
    "typing_wpm_min": 160,     // Min typing speed (default: 160)
    "typing_wpm_max": 240,     // Max typing speed (default: 240)
    "delay_min_ms": 100,       // Min delay between actions (default: 100)
    "delay_max_ms": 400        // Max delay between actions (default: 400)
  }
}

Usage Examples

Debug authentication visually:

"Log me in to NotebookLM with visible browser"

# Claude calls: setup_auth(show_browser=true)

Custom timeout for slow connections:

"Ask NotebookLM (with 60s timeout): What are the main concepts?"

# Claude calls: ask_question(timeout_ms=60000, ...)

Disable stealth for faster queries (if rate limits not a concern):

# Advanced: requires direct tool call (not natural language)
ask_question(
  question="...",
  browser_options={
    "stealth": {"enabled": false},
    "timeout_ms": 10000
  }
)

When to customize:

• Show browser: Debugging auth issues, verifying account selection
• Increase timeout: Slow network, large notebooks, complex queries
• Disable stealth: Local testing, debugging, speed priority
• Custom viewport: Testing responsive notebook UI (rare)