Persistent Memory for OpenClaw on Bedrock: Getting Prompt Caching Right

If you're running an AI agent on Amazon Bedrock and injecting persistent memory into every conversation, where you put that memory in the request matters a lot — both for how well the agent uses it and for what it costs you. I learned this the direct way while connecting agent-memory-daemon to OpenClaw running on Amazon Bedrock AgentCore Runtime. The setup works beautifully. My agent now remembers my preferences, my projects, and the weird Bedrock timeout I debugged three weeks ago. But along th