OpenAI Adds Persistent Codex Cloud Tasks and ChatGPT Plugin Extensions

OpenAI says Codex cloud environments let agents continue working after a user closes their laptop. [1] Reusable environments retain a repository, dependencies, scripts, and settings, reducing setup and enabling faster starts. [1] Users can start a cloud task, track its progress, and steer Codex remotely from a phone or another computer while the original laptop is off. [1]

OpenAI has introduced plugin extensions that allow developers to build applications directly into ChatGPT and Codex while adding new plugin placements across ChatGPT. [3] Through OpenAI MCP Extensions, developers can register sidebar apps, conversation panels, settings, file viewers and editors, display modes, deep links, context sharing, composer mentions, and rich forms with a small amount of SDK code. [3] OpenAI published developer tools in TypeScript and Python plus a protocol specification for a language-agnostic API. [3] Early implementations include Canva sidebar tabs, Figma composer mentions, and Adobe file handlers for editing through Acrobat and Photoshop within ChatGPT. [3]

Together, Codex Cloud and plugin extensions move OpenAI’s developer tooling in two directions: agents can keep working remotely, while applications can occupy more of the ChatGPT interface. The Canva, Figma, and Adobe implementations distinguish the extension system through concrete design, file-search, and editing workflows rather than only a protocol description. For teams, the practical test is whether reusable environments and embedded interfaces reduce handoffs without creating new configuration burdens. What the sources don't address: how extension review, permissions, security, pricing, or general availability will work.