# Stop server-side tool calls from breaking managed Gemini agents

> On the agent path for Antigravity and Deep Research, the autonomous loop runs its tools inside Google's server-managed sandbox.

- Published: 2026-05-21
- Author: Agno Team
- Category: Changelog
- Canonical: https://agno-com-nine.vercel.app/articles/stop-server-side-tool-calls-from-breaking-managed-gemini-agents
- Markdown: https://agno-com-nine.vercel.app/articles/stop-server-side-tool-calls-from-breaking-managed-gemini-agents.md

On the agent path for Antigravity and Deep Research, the autonomous loop runs its tools inside Google's server-managed sandbox. Agno used to surface those steps as local tool calls, which triggered `Function <name> not found` errors and follow-up `400 invalid_request` failures. Those server-side steps are now skipped on the agent path, so managed agents run cleanly. The model path with your own declared tools is unchanged.