Pantheon-Security/notebooklm-mcp-secure

🔍 Deep Health Check for Chat UI Verification

Catches stale sessions where cookies exist but the NotebookLM chat UI won't actually load.

New Feature

The get_health tool now supports a deep_check parameter:

{ "deep_check": true }

What it does:

• Actually navigates to a NotebookLM notebook
• Verifies the chat input UI element loads
• Returns chat_ui_accessible: true/false
• Provides actionable troubleshooting if UI is not accessible

Response with deep check:

{
  "authenticated": true,
  "chat_ui_accessible": true,
  "deep_check_notebook": "Fine-tuning Security",
  "troubleshooting_tip": null
}

When UI is stale:

{
  "authenticated": true,
  "chat_ui_accessible": false,
  "troubleshooting_tip": "Chat UI not accessible. Session may be stale. Run re_auth to refresh authentication."
}

Why This Matters

Previously, get_health only checked if auth cookies existed. This missed cases where cookies were valid but the actual NotebookLM session had expired. Now you can verify the UI actually loads before starting important query sessions.

Full Changelog: https://github.com/Pantheon-Security/notebooklm-mcp-secure/compare/v2026.1.0...v2026.1.1