Part 2. Five plugins for Claude Cowork that quietly do real work for you. Here is what each one does, how to install them, and one example you can run today.
First, What Is a Plugin
Claude Cowork is the feature inside the Claude app where Claude builds and edits files for you. A plugin turns Claude into a specific kind of worker. Instead of a blank chat, you get a focused helper that knows one job well: your brand voice, your design reviews, your back-office ops.
Plugins launched in early 2026. On February 24, 2026, they expanded to all paid plans. You add them from the plugins directory inside Cowork, and you can install as many as you need. This is Part 2, so here are five more that do not get enough attention.
Brand Voice is a partner plugin built by Tribe AI. It studies your existing content and your connected sources, like Google Drive, Notion, Slack, and meeting transcripts, and distills your brand's voice from that material into real, enforceable guidelines.
Then it checks what you write against those guidelines. So everything you put out sounds like you, not like generic AI. It derives the rules from your own words. It does not train on them or invent a voice for you.
Try This
Build your voice guide
Connect your Google Drive and ask: “Pull my last 20 newsletters and landing pages, distill my brand voice into a one-page guideline, then check this draft against it and flag anything that sounds off.”
This one feels illegal. PDF Viewer opens any PDF in a live, interactive viewer right inside Claude, so you can actually work on it instead of just reading it.
You can mark up a contract, fill out the form with visual feedback, stamp approvals, and place your signature, then download the finished, signed copy. No printing, no scanning, no bouncing between five apps. It runs on five built-in skills: /view-pdf, /open, /annotate, /fill-form, and /sign.
Try This
Fill and sign a contract without leaving Claude
Drop in a contract and say: “Open this in the PDF viewer, fill in my details, and let me place my signature, then give me the signed copy to download.”
Design is a design-partner plugin. It critiques your mockups and designs, writes the UX copy and microcopy that lives inside a product, runs accessibility checks, and supports developer handoff so the work moves cleanly from design into build.
Think of it as a sharp second set of eyes that knows good design, plain language, and what makes a screen usable for everyone.
Try This
Get a real design review
Share a mockup and ask: “Critique this checkout screen, rewrite the button and error copy in plain language, run an accessibility check, and list what my developer needs to know for handoff.”
Operations runs your back-office work. It documents end-to-end processes into clear SOPs with decision points built in, so the steps are easy to follow and easy to hand to someone new.
It also compares vendors with cost and risk breakdowns, and forecasts your team capacity and hiring needs. It is the operations brain you wish you had time to build.
Try This
Document a process once, reuse it forever
Ask: “Document our client onboarding from first email to kickoff call as a clear SOP with decision points, then tell me where we will hit a capacity crunch if we add five more clients next quarter.”
Customer Support is the one that keeps your inbox calm. It triages every incoming ticket, drafts responses in your tone, and manages escalations so the right issues reach the right person fast.
The smartest part: it turns solved tickets into help-center articles. So the same question stops coming back, and your support load shrinks over time instead of growing.
Try This
Clear the queue and build your knowledge base
Ask: “Triage today's open tickets by urgency, draft a reply for each one for me to review, flag anything that needs to escalate, and turn the three most common questions into help-center articles.”
It takes about a minute, and you only have to do it once per plugin.
Step 01
Open Cowork
In the Claude app, open Cowork. This is where Claude builds and edits files, and where your plugins live.
Step 02
Open the plugins directory
Go to the plugins directory and browse what is available. Plugins are on all paid plans as of February 24, 2026.
Step 03
Install and connect
Pick the plugin you want and hit Install. If it uses a tool like Google Drive or DocuSign, connect that account once. Then start asking.
Where to Start
If you only try one, start with Customer Support. It gives you back time on day one and keeps paying off as your help-center articles pile up. Run a creator-heavy business instead? Brand Voice is the one to install first.
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