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Harness Engineering on the AWS AgentCore Hyperscaler

A 12-part guide. Start at Part 1, or jump to any part below.

The parts

  1. What Amazon Bedrock AgentCore Actually Takes Off Your Plate
  2. Host a Claude Agent SDK Loop on AWS in Fifteen Lines. Then Read the Contract Twice.
  3. Two Harnesses, One Substrate: LangChain DeepAgents on Bedrock AgentCore
  4. Your AgentCore Session Is Not a Conversation. Confusing the Two Is How Continuity Dies.
  5. Your Agents Need Forty Systems. AgentCore Gateway Makes Them One Endpoint.
  6. Your Agent Has a Shell on the Box With the Credentials. Code Interpreter Is How You Fix That.
  7. Your Agent Can Browse Now. The Danger Is Not What It Can Click.
  8. Your Agent Remembers Nothing. AgentCore Memory Fixes Two Tiers and Leaves Trust to You.
  9. Per-User Agent Auth: The Model Cannot Leak a Token It Never Held
  10. Your Agent Is Fully Traced. That Still Does Not Mean It Was Right.
  11. Multi-Agent Is Not About Scale. It Is a Context Manager in Disguise.
  12. Your Agent Believed the Internet for Three Weeks. Every Component Worked.