The `InvokeGuardrailChecks` API removes the requirement to pre-create guardrail resources, giving developers more flexible, granular control over where and when safety checks are applied within multi-turn agentic AI workflows.
Teams building agentic systems can use ToolSimulator to safely stress-test tool-dependent agents — including multi-turn workflows and edge cases — without risking PII exposure or unintended side effects from live API calls.