Google Cloud’s Developer Device Platform is now in public preview with remote physical-device streaming, parallel emulator testing, smart sharding and an agent skill that can drive multi-step journeys, inspect visual issues and feed fixes back into coding agents. It is billed per active device minute and remains a pre-GA service.
Codex 0.149.0 includes the async-message tool, delivery metadata and removal of the client-side feature gate that BTN previously tracked only on main. Parallel human-agent work is now in a stable client, but late replies can still race with decisions and model capability metadata remains the final exposure gate.
Agent Plugins 1.0 now has documented support across VS Code, Cursor, GitHub Copilot, ChatGPT/Codex, Kiro and several open-source agents. That makes the format materially more useful for cross-client distribution, but portable components remain limited to Agent Skills and MCP servers while permissions, hooks, commands and host UX stay client-specific.