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Bobo Yang
Bobo Yang

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I Built a DeepSeek Harness Plugin That Installs Other Plugins from Chat

#tools

DeepSeek Harness supports plugins, but installing one usually means finding the
right package name, running a command, checking the profile, and deciding
whether DSH needs a restart.

I built a standalone plugin called relay-dsh-plugin-manager. Install it once,
and you can search for and manage other DSH plugins directly from a
conversation.

Plugin Manager searching for, confirming, and installing the Codex plugin in DSH

19-second demo: search for the Codex plugin, inspect the installation plan, confirm it separately, and finish the installation. Watch the full 38-second MP4 at normal speed.

What it does

You can write requests such as:

Find a workspace file browser plugin
Install relay-dsh-plugin-codex
List my installed plugins and their status
Disable example-dsh-plugin
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Plugin Manager can:

  • search npm and GitHub from a description of the capability you need;
  • show a plugin's source, version, and basic information;
  • install, update, enable, disable, or remove a plugin;
  • show a plan first and wait for a separate confirmation before changing DSH.

Search and inspection are read-only. A vague request cannot immediately start
an installation.

How it differs from a typical plugin marketplace

Typical plugin marketplace DSH Plugin Manager
Browse categories and lists Describe the capability you need
Click an install button Ask from the current conversation
Search mainly by name Search with a natural-language requirement
Start after the click Review a plan, then confirm separately

This is not meant to replace a visual marketplace. A traditional marketplace is
better for browsing. Plugin Manager is useful when you are already working in
DSH and want to find or install something without leaving the conversation.

Install it

The current release is a preview. Stop DSH Web, then run:

dsh plugin --profile web add relay-dsh-plugin-manager@next
dsh web
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The manager itself still needs this one command. After that, other plugins can
be managed from Chat. KeySync's one-click DSH setup installs Plugin Manager
automatically.

The current release manages the running web profile. Some plugin changes may
still require a DSH restart.

Links

The plugin is developed in Relay but installs independently on official DSH. It
does not require a Relay fork.

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