E2B is enabled on all scripts when running standalone

[wsargent]

Describe the bug

When I set up E2B integration by.setting the E2B_API_KEY for the run_code tool, then I see that other python scripts such as excerpt.py are also run from the sandbox -- this breaks as I have Tailscale running and cannot resolve my local MCP server .

If I run the tool directly from ADE, I can see that I can't get to my tools server from the URL:

"Error executing function excerpt: ConnectionError: HTTPSConnectionPool(host='hayhooks-proxmox.tail88e86.ts.net', port=443): Max retries exceeded with url: /excerpt/run (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7f7df54d1310>: Failed to resolve 'hayhooks-proxmox.tail88e86.ts.net' ([Errno -2] Name or service not known)"))"

And when I look at the logs, I can see that excerpt.py is being run inside a sandbox, even though it's not using run_code:

  Letta.letta.services.tool_sandbox.e2b_sandbox - WARNING - E2B execution failed: excerpt

Please describe your setup

• How are you running Letta?
  • Docker
• Describe your setup
  • Ubuntu Linux running systemctl service on Letta 0.15.1

Additional context

To reproduce this, create a python script that uses requests and makes a GET call to an internal service -- the sandbox will not let it see the internal service.

[sarahwooders]

Yes this is designed to be a global setting (so tools also run in E2B if E2B is enabled), but I can see it's annoying if you want tools to run locally. We can maybe add a new env variable that's DISABLE_TOOL_SANDBOXING into settings?