Tool Integrity: Preventing Hallucinated Function Calls
Five controls to ensure agents only call tools that actually exist.
Steps
- Inject a current tool manifest and forbid calls outside the list.
- Normalize common hallucinated tool names to real function names.
- Validate tool calls against a local registry before execution.
- Require a safe fallback response when a needed tool is unavailable.
- Limit the toolset to only what the current task phase requires.