Inside Runtime (Internal Brain)

This is a step-by-step view inside AWS Bedrock AgentCore Runtime — the internal brain — showing exactly how a request is processed from receipt to logging.

How it works

1. 1Receive the request from the application/API and load the agent, prompt and config.
2. 2Load memory (conversation history, session state) and user context.
3. 3Reason and plan the next action; if a tool is needed, call it via the gateway.
4. 4If knowledge is needed, retrieve from connected knowledge bases; update memory as needed.
5. 5Generate the final response, run policy/guardrail checks, stream it back, persist session and write logs.

Key points

• Runtime capabilities: stateful execution, secure by design, model agnostic, streaming-first.
• It integrates gateway tools, knowledge bases, memory stores, identity and policies.
• Enterprise-ready: scalable, reliable and fully managed.
• It maintains state across turns and sessions.

Why it matters

Understanding the runtime's internal steps demystifies how an agent actually executes — useful for debugging, optimising and trusting the system.

Frequently asked questions

Is the runtime model-specific?

No — it's model agnostic, working with Claude, Titan and other Bedrock models.

Does it keep state?

Yes — it maintains conversation and session state across turns.