relay-dsh-plugin-terminal

After a conversation in the DeepSeek Harness Web UI, if you need to run a command, check logs, or SSH into a remote host, the usual workaround is to open a system terminal in another window. relay-dsh-plugin-terminal embeds an xterm.js-based browser terminal panel into the official DSH Workbench bottom area, so the conversation and the live shell share the same workspace directory without forcing you to switch applications.

Core capabilities include bounded scrollback managed on the host side, a versioned ctx.relayTerminalProviders registry, and a provider-neutral pipeline for spawn, input, resize, output, and termination. The plugin does not spawn shells by itself; it relies on an execution backend such as relay-dsh-plugin-codex to supply the actual PTY. When no backend is registered the panel reports a clear provider-unavailable state instead of silently failing.

It is designed for developers who want to run commands alongside DSH conversations, for Relay plugin authors who embed terminal capability inside their own web workbenches, and for contributors who build new execution backends through the public provider registry. The plugin does not depend on Claude, Relay Events, or any private Relay runtime; Codex is an optional backend, not a hard dependency. Its clean boundary makes it easy to compose with Workbench, Files, and other DSH panels.