AI Weekly Malaysia

DeepSeek has put Harness into worldwide public preview as an open-source desktop app for macOS and Windows, plus a web UI you can launch from code. It is built on Cordis's "everything is a plugin" architecture, with a Creator mode that writes and installs plugins from a chat prompt — the page's own demo builds a floating Pomodoro timer in 5m 24s (package.json +35 lines, client.js +638 lines, verified against live plugin state). Listed capabilities include coding, research, background tasks, and experimental agent teams, scheduled tasks, voice input, terminal, agent loop, and subagents.

Why: If your team is standardising on a closed coding agent and paying per seat, this is a free, open-source option whose extension path is a chat prompt rather than an SDK project. The concrete test: take one small internal tool you already script around (a notifier, a timer, a batch file processor) and try building it as a Harness plugin in Creator mode, then compare the effort against your current agent's plugin or MCP setup. The 252-point, 121-comment Hacker News thread is a signal peers are already evaluating it, but this is DeepSeek's own product page, so treat the demo timings as vendor-supplied. Nothing in the text ties this to Malaysia or Southeast Asia.

At its Dev Day on September 29, 2026, OpenAI said developers can now build app-like plugin extensions inside ChatGPT, giving apps a dedicated slot in the ChatGPT sidebar plus interactive panels and file viewers that support whatever formats the developer's product uses. It also introduced a Plugin Creator tool, a redesigned submission flow with clearer feedback, improved plugin ranking and recommendation in the directory and in conversations, per-plugin permission approval, plugin hosting on ChatGPT Sites, and support for the proposed MCP Events specification so plugins can trigger automations from events in a connected app.

Why: If you already maintain an MCP server or ChatGPT plugin, two changes are worth acting on: plugins can now live in the sidebar with their own interactive UI, and MCP Events support turns them from on-demand tool calls into event-driven automations. The text gives no pricing, availability dates, rate limits, or migration path for existing plugins, so treat this as something to prototype against rather than something to schedule a release around. There is no Malaysian or Southeast Asian angle in this article.