The new InvokeAgentRuntimeCommandShell API provides developers with PTY-backed interactive shells, complementing existing one-shot command APIs by delivering a full terminal experience inside isolated microVMs. Features like tab completion, terminal resizing, and automatic reconnect improve interactivity. Persistent session state supports environment variables and command history across commands.
This enhancement targets developers running coding agents such as Claude Code and Amazon Kiro, allowing inspection, debugging, and parallel session management with up to 10 concurrent shells per runtime. AWS details user commands and session management, while independent performance evaluations in production contexts remain unreported.
Source & further reading
Amazon Bedrock AgentCore Runtime introduces interactive shells for terminal access into agent sessions ↗Source published 2026-06-05. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.