This pattern deploys an Amazon Bedrock Agent that uses an OpenAI GPT OSS foundation model to orchestrate tool-use workflows. The agent reasons about user queries and invokes a Lambda action group to retrieve weather and time data.

OpenAI GPT OSS models are available on Amazon Bedrock with the same security, governance, and API experience as other Bedrock models. The agent uses the standard Bedrock Agent orchestration to plan and execute multi-step tool calls.