Universal Plugin Hub

August 31, 2026 · View on GitHub

English | 中文

Plugin marketplace for DeepSeek Harness (DSH). The official Claude plugin catalog comes pre-loaded, and Git repositories can be added as plugin sources — install with one click and skills, subagents, MCP connectors, LSP servers, and hooks are wired into DSH.

Universal Plugin Hub overview

What it does

Universal Plugin Hub brings a visual plugin market to DSH. The official Claude plugin catalog is built in: pick a plugin, click Install, and it is ready to use in DSH. You can add other Git repositories as plugin sources and install their plugins the same way.

When you install a plugin, the hub wires its pieces into DSH automatically:

skills and slash commands become agent skills (commands/ is mirrored into skills/, as is a root SKILL.md)
subagents are compiled into one delegated Hub skill per plugin (skills/<plugin>-agents/)
MCP connectors register into cordis.patch.yml as @deepseek-ai/dsh-mcp-client entries
LSP servers register as @deepseek-ai/dsh-lsp-stdio entries — install typescript-lsp, restart DSH, and the lsp tool works
hooks are loaded into DSH by registering a per-plugin @deepseek-ai/dsh-hooks-claude-code bridge entry; the bridge runs the plugin's native Claude Code hooks.json on DSH's own interception points

Features

Marketplace and browsing

Built-in catalog — the official Claude plugin catalog (anthropics/claude-plugins-official) loads by default, no configuration needed
Plugin sources — add Git repositories as sources; a new source is test-cloned first and its plugin count is shown before it is saved
Tab drag sorting — drag source tabs to reorder them; the bar auto-scrolls when you drag to an edge, and the order persists
Tab bar scrolling — the mouse wheel scrolls the bar horizontally, and fade masks at the edges show when more tabs are hidden
Scroll memory — each source keeps its own scroll position and filter; switching tabs or coming back from a detail page restores them
Quick scroll to top — clicking the selected source's tab again scrolls the grid to the top and re-sorts, bringing recently installed plugins to the front
Fuzzy search — ranked matching over name, author, and description, ignoring separators like - and _; filter and sort controls sit next to the search bar
Hover preview — hovering a card shows its description and category in a popover

Install and wiring

Automatic wiring — installing a plugin mirrors its skills and slash commands into the skills directory, compiles subagents into one Hub skill, and registers MCP connectors, LSP servers, and Claude/Codex hooks into cordis.patch.yml
Detail page — lists a plugin's skills, subagents, and prompts; connectors show connection state, LSP servers show an active dot, and hooks are listed by event name (SessionStart, PreToolUse: Bash)
LSP pre-flight — if a language server binary is missing, registration is skipped with an installation hint instead of writing a broken entry
Reinstall and replace — installing over an existing plugin replaces it; a same-name plugin from another source takes over the old record

Management

Enable / disable — toggle plugins and connectors without restarting DSH
Per-tool MCP switches — hover a tool to see its description and parameters, then click the status badge to disable or re-enable that single tool
Connector auth — test a token against the real endpoint (8-second timeout) before saving; token, URL, custom headers, env, args, and OAuth are stored per connector
Updates — the update button is enabled only when a newer version exists; the tooltip shows the target version
Uninstall — one confirmation removes the plugin copy, skill registration, patch entries, and cached tool state

Interface

Light and dark themes — separate design-token palettes for each mode, following the DSH UI theme
Markdown rendering — plugin descriptions render through a built-in Markdown renderer with headings, lists, quotes, code blocks, Note:/Warning: callouts, command highlighting, and links, styled for both themes
Local cache — sources and marketplace listings are cached in the browser, so the panel renders immediately while fresh data loads
Icon caching — avatars are served through a disk-cached proxy; plugins without an avatar get a vector badge picked by name hash
Rendering performance — offscreen cards skip layout (content-visibility: auto), and scroll masks update at most once per frame

Requirements

Node.js 18+
DSH with the web profile (0.1.0-rc.6 or newer recommended). The hub's own install (dsh plugin add universal-plugin-hub) runs a postinstall script that pre-provisions the 5 LSP/hook host packages into the DSH installation — versions are resolved to match the running DSH release, and a provisioning failure fails the hub install outright. After that, plugins declaring LSP servers or Claude/Codex hooks register as a single cordis.patch.yml write each (DSH HMR picks them up within ~1s).

Where data lives

All hub state sits under ~/.dsh/agent-skills/universal-plugin-hub/:

state.json — sources, installed-plugin records, and their order
market/<sourceId>/ — shallow (--depth 1) clones of each plugin source
market/remote/ — clones of plugin repositories installed from remote URLs
installed/<name>/ — the working copy of each installed plugin (skills, agents, connectors)
icons/ — cached plugin icons, served through the hub's /icon proxy

Connectors, LSP servers, and hooks register by writing entries into the DSH cordis patch ($DSH_HOME/profiles/web/cordis.patch.yml); per-tool MCP switches live in ~/.dsh/.mcp-tools-state.json.

Install

From the DSH marketplace

Search Universal Plugin Hub in the DSH plugin market and click install.

From the CLI

dsh plugin add universal-plugin-hub

Manually

cd ~/.dsh/plugins
git clone https://github.com/CaesarEmperor/universal-plugin-hub.git
cd universal-plugin-hub
npm install

Restart DSH, then open the Universal Plugin Hub panel from the DSH UI.

Quick start

Open the panel. The official Claude plugin catalog is loaded by default; browse or search right away.
Optional: add another source, e.g. anthropics/claude-plugins-community.
Browse or search. Open a plugin to see what it ships: skills, subagents, connectors, LSP servers.
Click Install. The hub copies the plugin, registers skills and subagents, wires any LSP servers and Claude/Codex hooks into DSH, and auto-connects what needs no setup.
Manage installed plugins from the manage page — enable/disable, toggle connectors and individual MCP tools, verify auth tokens, update, or remove.

Project structure

src/       server: REST routes, marketplace parser, git ops, agents compiler, install lifecycle
client/    UI — a single React file loaded through the DSH client runtime (no build step)
scripts/   postinstall — pre-provisions the 5 LSP/hook host packages into the DSH install

Development

npm install
node --check src/index.js
node --check client/client.js
node scratch/verify-lsp-support.mjs   # end-to-end check against a throwaway DSH_HOME

The UI is a single React file loaded through the DSH client runtime (dsh-client-runtime and dsh-client-ui-theme are injected by the host). There is no build step — edit client/client.js and reload.