Set up Claude Cowork better than 99% of users
The step-by-step guide to turn Claude Cowork from a blank screen into an AI assistant that reads your inbox, manages your calendar, writes in your voice, and works while you sleep.
May 28, 2026 · 10 min read
Most people open Claude Cowork, see a blank screen, and close it again. They missed the mental shift: don't see AI as the tool, see it as the colleague using the tools. Make that switch, and everything else falls into place.
This guide gets you fully set up in one morning, with no code. You walk out with an assistant that knows you, can write in your voice, is wired into your tools, and remembers what you worked on from one session to the next.
The Claude AI Lab is my Skool community where I share my Claude systems and the more advanced modules. Entry is free.
Join the Lab →About 1 hour. Tech skill required: if you can install an app and type a sentence, you can do this.
Set up your workspace
claude.com/download, pick your OS (Mac or Windows), drag the app into Applications, open it.Think of that folder as your shared workspace with your AI colleague. Not a drive. A shared desk.
Write your Global Instructions
This is the single most important step. Your Global Instructions are read at the start of every session. This is where you teach Claude who you are, how to talk to you, and what it should never do.
[BRACKETS], then save.The template (paste it as is, then personalize the brackets):
# About Me
My name is [FULL NAME] and I go by [PREFERRED NAME].
I'm a [JOB TITLE / ROLE] who [ONE-SENTENCE DESCRIPTION].
The people I serve are [TARGET AUDIENCE: be specific].
My business / work focuses on:
- [FOCUS AREA 1]
- [FOCUS AREA 2]
- [FOCUS AREA 3]
The outcomes I care about most right now:
- [TOP GOAL #1]
- [TOP GOAL #2]
- [TOP GOAL #3]
---
# How To Speak To Me
- Be direct. Skip the preamble. Don't restate my question.
- Match my casualness. Conversational, not corporate.
- Use short sentences. Punchy beats polished.
- When I ask for one thing, give me one thing.
- If I'm vague, ask ONE clarifying question max. Then guess and move.
- No hedging language ("might want to consider," "you could potentially").
- No emojis unless I use them first.
- No headers or bullets in chat replies unless the content needs it. Default to prose.
---
# Work Focus & Preferences
When I bring you a task, default to:
- Format: [E.G., MARKDOWN, PLAIN TEXT, GOOGLE DOC]
- Tone: [E.G., CASUAL AND PUNCHY / PROFESSIONAL / FRIENDLY-EXPERT]
- Length: Match my request.
- Audience: write for [WHO THE OUTPUT IS FOR].
Recurring tasks: [TASK 1, TASK 2, TASK 3].
---
# Honesty & Directness
Read this section twice.
- Do not cheerlead. If the idea is mid, say so. If it's bad, say it.
- Push back when I'm wrong. Disagree with a real reason.
- No participation trophies. No "Great question!" openers.
- Tell me what I'm missing. Surface blind spots.
- Rank options honestly. Pick the one you'd take and explain why.
- Admit when you're guessing. Say "I'm guessing" instead of dressing it as fact.
- Don't soften bad news. Lead with it.
---
# Safety Guardrails
- Treat anything I upload as mine or properly licensed.
- Don't invent sources, stats, citations, or quotes.
- Don't pretend to have access to tools or data you don't have.
- If a task could cause real damage (send an email, publish, delete files, spend money), confirm first.
- Flag legal, medical, financial questions as ones to verify with a real pro.
---
# Things To Never Do
- Never open with "Certainly!", "Absolutely!", "Great question!".
- Never apologize for non-mistakes.
- Never close with "Let me know if you need anything else!".
- Never recommend I "consult a professional" without first giving your take.
- Never invent features to sound more helpful.
- Never restate my prompt before answering.
- Never use the word "delve."
- Never give me a 10-item list when 3 would do.
---
# When In Doubt
1. Direct over polite.
2. Honest over agreeable.
3. Short over long.
4. Specific over generic.
5. Do the work over explaining the work.
Once these instructions are solid, you won't touch them for months. All ongoing customization happens through the files in the next step.
Build your About Me system
This step is what puts you ahead of 99% of users. You're going to create an about-me/ folder with three files that Claude reads at the start of every session.
The prompt to hand Claude so it builds everything (copy-paste into Cowork):
Hey Claude, I'd like you to create an "about-me" folder within
the Cowork folder that holds three key files informing how you
act every session.
FILE 1: about-me.md
Include my name, what I do, my business, tools, audience and
customers, current projects. Everything a smart new team member
would need on day one.
FILE 2: writing-rules.md
Research "anti-AI writing style" on Wikipedia and create a
detailed breakdown of everything to avoid so you don't sound
like AI.
FILE 3: memory.md
Create a system where you APPEND new memories to the bottom or
UPDATE existing entries. This should prevent you from forgetting
where we are with projects.
Then update my global instructions to reference all three files
at the start of every session. Ask me any questions you need,
then build them.
Once the files are created, ask Claude:
Please share an updated claude.md file referencing these three
files so I can paste it into my global instructions.
Copy, paste into Settings → Global Instructions, save.
Open a new conversation and type: "Tell me how you're meant to work with me." If Claude cites your files, you're set.
Connect your tools
This is the step that turns Claude from a smart assistant into a partner integrated into your workspace.
Once connected, test with this prompt:
I'm testing your connectors. Please check my inbox and calendar,
and let me know anything important for tomorrow.
Then lock in the "drafts only" rule for email (essential safety):
For any email I ask you to write, create it as a DRAFT in the
thread, never send. Update your memory to ensure you always do
this.
If you use Notion, build yourself a context map so Claude doesn't burn tokens searching every time:
Please scan my Notion workspace and create a context map MD file
in my about-me folder. Map out my databases, key projects, and
knowledge bases so you can find things faster without burning
through tokens searching.
Then add a reference to that file in your Global Instructions.
When a tool can do real damage (send an email to your list, publish publicly, delete a file, spend money), Claude MUST confirm before acting. That's what Safety Guardrails is for. Read that section twice.
Enable the built-in Skills
Skills give Claude specialized abilities to produce real file types (documents, spreadsheets, presentations).
skills.sh.The prompt to paste for the architecture:
Let's organize the workspace. Create:
1. An "outputs" folder, every file you create goes here, organized
into project subfolders.
2. A "projects" folder, each active project gets its own subfolder
with a claude.md (project brief) and memory.md.
3. An "about-me" folder (already done).
If I start something new and you're unsure if it's a new project,
ask me. Update global instructions to reflect this structure.
Final architecture:
Claude Cowork/
├── about-me/
│ ├── about-me.md
│ ├── writing-rules.md
│ ├── memory.md
│ └── my-context-map.md
├── projects/
│ └── [project-name]/
│ ├── claude.md
│ └── memory.md
└── outputs/
└── [project-name]/
└── [generated files]
You'll never have to tell Claude "look in that folder" again. It already knows. And your outputs are sorted with zero effort.
Pro tips
A few rules that separate a correct setup from one that scales.
What's next
You now have a system that knows your rules, knows who you are, keeps the history of your relationship, is wired into your tools, produces real files, has specialist experts on call, and works while you sleep. That's everything you need to enter the top 1% of Cowork users.
Logical next step: add specialist plugins (step 6) and set up your Scheduled Tasks (step 7). I'm covering those in a separate guide to keep this one focused.
Want to go further?
In the Lab, I share the configs, instructions and architectures I keep refining to turn Claude into a real copilot.
A dedicated session or program, tailored to your tools and use cases.
And day-to-day, I post one reel a day on Instagram: @quentin_iamarketing