OpenCode Chrome Annotation is a free browser extension designed specifically for users of the OpenCode environment. This tool allows users to efficiently annotate web pages by selecting UI elements and providing contextual instructions, which can be sent directly to their local OpenCode setup. The extension operates within Chromium-based browsers and ensures that all data remains local, enhancing privacy and control over the annotation process.

The functionality is straightforward: users activate the extension, connect it to an active OpenCode session, and create annotations by selecting elements on the page. Each annotation includes user comments, metadata about the selected element, page context, and a screenshot, all of which are sent exclusively to the local OpenCode plugin. This ensures that no data is transmitted to external cloud services, making it a secure choice for developers and teams working with OpenCode.