An AWS Machine Learning blog covers hosting coding agents on Amazon Bedrock AgentCore Runtime: each session gets a Firecracker microVM, /mnt/workspace survives idle, agentcore exec --it provides a real PTY, and Gateway MCP keeps GitHub/Jira tokens out of the VM. Run Claude Code, Codex, Kiro, and Cursor in isolation without localhost port fights.
Key Takeaways
- ✓Isolation: per-session Firecracker microVM with persistent /mnt/workspace.
- ✓Security: Gateway MCP holds GitHub/Jira tokens outside the VM.
- ✓Use case: race Claude Code / Codex / Kiro / Cursor on the same issue.
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