Companion for OpenCode

Companion for OpenCode pushes browser context into your local Opencode (https://opencode.ai) agent — the AI coding tool you already run on your own machine. It is unofficial and open-source, and not affiliated with the opencode project. Everything happens between this extension and an opencode server you run yourself (by default `http://localhost:4096`). Nothing is sent to the extension developer or to any third party. Features Works with opencode v2 and v1 — detects your server's API generation and adapts; basic auth (username opencode) is handled for either. Send selection — right-click on highlighted text (or press Ctrl+Shift+U) to send it to opencode. Send page — right-click anywhere to capture the whole page's text, truncated at a configurable limit. GitHub-issue aware — sending from a GitHub issue page adds structured issue context to the prompt. Side panel — browse your sessions, stream responses live, abort runs, create new sessions, run slash commands, and delete sessions (current or all extension-created ones). Markdown replies — assistant messages render as sanitized markdown; your own messages stay plain text. Two delivery modes — create a new opencode session, or draft the prompt in the side panel for review before sending. Agent & model defaults — pick a default agent and model in options. Privacy by design — captured web content is wrapped in explicit UNTRUSTED CONTENT delimiters with a guard note, because page content is data, never instructions.