dsh-web-terminal

When using DeepSeek Harness for AI-assisted coding, developers often face a pain point: after the model edits code, they need to copy-paste it into an external terminal to run commands, causing frequent context switching that breaks the workflow and wastes extra tokens and chat context. Additionally, terminal sessions are often non-persistent, with command history lost upon page refresh or tab switches.

dsh-web-terminal addresses this by integrating a real interactive PTY terminal (powered by xterm.js and node-pty) as a third tab in the Web UI—right alongside Chat and Trajectory. This terminal is completely decoupled from the model/agent, allowing you to run your own shell without polluting the conversation context, achieving zero context overhead. It features session persistence with automatic reconnection and output replay, so you can continue your work across sessions and refreshes. You can also open multiple terminals in parallel and switch shell types (like bash, zsh, PowerShell) via a dropdown menu.

This plugin is ideal for developers who want a one-stop experience within DeepSeek Harness to both write and run code. Whether you’re performing quick tests, building projects, committing Git changes, or debugging command-line tools, you can execute commands in real-time next to the chat without leaving the workspace. It streamlines the development cycle, letting you focus more on coding itself.