12 Must-Have DeepSeek Harness Plugins to Install First (2026)
Just installed DeepSeek Harness (dsh) and staring at thousands of plugins? These are the must-have DeepSeek Harness plugins worth your time: a plugin market, vision, memory, web search, and Web UI upgrades — grouped by use case with install pointers.
Last updated: 2026-08-18
TL;DR
Everything in dsh is a plugin, and the plugin directory already lists thousands of them — but a new install really only needs the 12 below. The bar for making this list: useful the moment you install it, covers a high-frequency need (UI, vision, memory, search, code review), and strong community traction. Star counts are from snapshot time and drift over; check each plugin's detail page for current numbers.
New to installing plugins? Read Installing Plugins Safely first: most plugins are a single line in your Profile / Patch config, and every repo's README documents its own setup.
1. dsh-market/dsh-market — install this one first, use it for the rest
One-liner: a visual plugin market inside DeepSeek Harness — browse, search, one-click install community plugins.
Who it's for: everyone. It's the only "meta-plugin" on this list — once it's in, the other 11 are one click away under Settings → Plugin Market, no config edits. Installs are restricted to the curated registry with build scripts off by default, which is also safer for newcomers.
Install: see the plugin detail page.
2. nexu-io/open-design — the 87k-star design alternative
One-liner: the open-source Claude Design alternative. A local-first desktop app that turns your coding agent into a design agent.
Who it's for: frontend devs and indie hackers shipping pages and design drafts. The most-starred entry in the whole directory — if you do design work, just install it.
Install: see the plugin detail page.
3. volcengine/openviking — a self-evolving context database
One-liner: from Volcano Engine (ByteDance) — unifies agent memory, knowledge RAG, and skills in one self-evolving context database.
Who it's for: anyone running long tasks, building knowledge-base Q&A, or tired of agents that "can't remember anything." 29k stars and big-vendor maintenance make it the most solid foundation in the memory category.
Install: see the plugin detail page.
4. zhu1090093659/dsh-web-ui — the Web UI upgrade pack
One-liner: a plugin and skin collection for the DSH Web UI: task board, git graph, right-side panel, remote mobile UI, pets, live token stats.
Who it's for: anyone who lives in the Web UI and finds the stock interface limiting. One plugin that replaces a dozen tweaks — the UI feels like a different product.
Install: see the plugin detail page.
5. xiaobright/dsh-anchored-standard — a steadier two-phase preset
One-liner: a two-phase agent preset — bootstrap aligned with Minimal mode first, then unlock the full Standard toolset.
Who it's for: anyone who finds Standard mode too eager to "think big and change everything" up front. Align first, act second — noticeably less rework.
Install: see the plugin detail page.
6. liustack/modlens — eyes for text-only models
One-liner: the first vision plugin for DeepSeek Harness: paste an image, get structured JSON evidence (OCR, layout, semantics) — text-only coding models can finally "see."
Who it's for: anyone on a text-only model who still needs to handle screenshots, UI mocks, or error images. No need to switch to a multimodal model — bolt vision on instead.
Install: see the plugin detail page.
7. omdsh-dev/dsh-better-sidebar — the sidebar workbench
One-liner: an open sidebar foundation with built-in file viewing/editing, terminal, Git, and subagent pages — third-party plugins can register their own pages too.
Who it's for: anyone constantly switching between files, diffs, and subagent progress in the Web UI. After installing, you rarely need a second window.
Install: see the plugin detail page.
8. ccch1mneyyy/dsh-tui — a Claude Code-style TUI for terminal people
One-liner: a full-screen terminal interface: whale top bar, live status line, streaming thoughts, double-Esc rollback, context progress + TPS gauge. Featured on the official DSH WeChat account.
Who it's for: terminal dwellers who want that Claude Code feel. One npm install and the CLI experience is transformed.
Install: one-line npm install — see the plugin detail page.
9. hyhmrright/brooks-lint — AI code review grounded in the classics
One-liner: code review benchmarked against 12 classic engineering books, with citations, severity labels, decay-risk diagnostics, and 6 analysis modes.
Who it's for: teams who want AI reviews that argue from evidence instead of vibes. Every finding cites the book and principle behind it — review output drops straight into a PR.
Install: see the plugin detail page.
10. lum1104/dsh-browser — let dsh drive your browser
One-liner: a Chrome sidebar extension that lets DSH read, click, fill forms, and scroll the current tab — no vision capability needed, and it keeps your login sessions.
Who it's for: anyone who needs the agent to operate internal tools, admin panels, or login-gated sites. Text-first automation is far more reliable than screenshot recognition.
Install: see the plugin detail page.
11. liustack/modsearch — the web search bridge
One-liner: gives models without native web access Web / X search and fetching, returning structured JSON evidence with citations — a key-free engine option included.
Who it's for: research, doc-chasing, and investigation tasks. Same author as modlens — the two form a "senses kit" often installed together.
Install: see the plugin detail page.
12. xmanrui/dsh-im — put dsh in your chat apps
One-liner: connect IM bots to DeepSeek Harness via QR code or credentials — Feishu, WeChat, DingTalk, WeCom, QQ, Telegram, Discord, and WhatsApp, eight channels under one roof.
Who it's for: anyone who wants to dispatch tasks to the agent from a phone and get results back. Streaming replies and a settings page included.
Install: see the plugin detail page.
FAQ
How do I install DeepSeek Harness plugins?
Most plugins are a single line in your Profile / Patch config — each repo's README shows the exact snippet. For the easy route, install dsh-market first, then search and one-click install from the UI. Full walkthrough: Installing Plugins Safely.
Will too many plugins slow dsh down?
Plugins only register their tools and pages while enabled, and uninstalling one revokes everything it registered — no residue. So install on demand: even from this list, starting with three to five that match your workflow is fine.
Are these must-have plugins free?
Everything on this list is open source and free — check each repo's license before installing. What actually costs money is model usage: dsh runs on your own API key (e.g. DeepSeek API), billed per token, independent of plugins.
Are third-party plugins safe?
Three habits: prefer plugins marked "curated" in the plugin directory with strong star counts; drop the process sandbox to read-only or workspace-write for sensitive work; let the approval flow intercept risky operations. Details: Sandbox, Approvals & Secrets.
Where do I find more plugins?
The plugin directory on this site indexes thousands of plugins with category, star, and heat filters, synced with GitHub hourly. Or read the Plugin Development Guide and publish your own.