What If Claude Could Actually Do Things?
Regular Claude answers questions. Claude Cowork does the work.
Instead of copying data between apps, manually researching prospects, or spending thirty minutes prepping for a meeting, you describe what you want and step away. Come back to finished work — a researched prospect with a drafted email, a cleaned dataset with visualizations, a weekly status report compiled from your project files.
Cowork is Anthropic's research preview that brings agentic AI to knowledge work. It runs locally on your computer through Claude Desktop, with full access to your files, code execution, and connections to tools like Gmail, Google Drive, Slack, and DocuSign.
This guide covers everything: setup, customization, plugins, scheduled automation, security, and real-world workflows for sales, marketing, data analysis, project management, finance, and research.
Download the Templates
We have created ready-to-use templates for every section of this guide. Download and customize them:
- Global Instructions — Sales Rep
- Global Instructions — Data Analyst
- Global Instructions — Project Manager
- Global Instructions — Content Writer
- Scheduled Task Templates — 7 ready-to-use automations
- Plugin Starter Kit — build your own custom plugin
What Cowork Can Do (That Regular Chat Cannot)
Here is what changes when you switch from regular Claude to Cowork:
- Execute multi-step tasks autonomously. Describe an outcome, step away, come back to finished work.
- Access your files and folders. Read, write, edit, and organize files on your computer.
- Run code and scripts. Python, JavaScript, shell commands, data analysis — all executed directly.
- Connect to your tools. Gmail, Google Drive, Slack, DocuSign, and more.
- Work while you sleep. Scheduled tasks run automatically on your chosen cadence.
- Learn your preferences. Global and folder-specific instructions shape how Claude works for you.
What Cowork Is Best At
- File management — organize folders, rename batches of files, convert formats
- Research and analysis — synthesize sources, compare documents, extract insights
- Document creation — reports, presentations, formatted docs from templates
- Data work — clean datasets, run analysis, generate visualizations
- Email and communication — draft responses, summarize threads, schedule sends
- Code and automation — write scripts, debug code, automate repetitive tasks
Getting Started
What You Need
- Claude subscription — Pro ($20/mo), Max, Team, or Enterprise
- Claude Desktop app — download from claude.com/download
- macOS or Windows
You do not need technical skills, command-line experience, or programming knowledge. Cowork is designed for non-coders.
Installation
Step 1: Download and install Claude Desktop from claude.com/download. Log in with your Claude account.
Step 2: Open Claude Desktop and look for the Cowork button in the left sidebar or top navigation. Click to open a new Cowork task.
First launch takes 2 to 5 minutes. Cowork downloads the latest version and sets up a secure virtual machine. This is normal.
Step 3: Grant file access. When you start a Cowork task, Claude asks for permission to access folders. You control this completely.
Best practice: Create a dedicated folder like ~/Claude-Work/ and grant access to that. Keep backups of important files elsewhere. Do not give access to your entire home directory.
Your First Task
Try this to test that everything works:
"Create a markdown file called test-report.md in this folder with a title, today's date, a bulleted list of 3 things Cowork can do, and show me the contents."
Claude will create the file, write the content, save it, and show you the result. You just ran your first autonomous task.
Customizing Claude With Instructions
Cowork lets you teach Claude how you work through instructions — standing rules that apply to every task automatically.
Global Instructions
Global instructions apply to every Cowork session, across all projects and folders. They define your preferred tone, your role, output formats, and things you never want Claude to do.
How to set them: Open Claude Desktop, go to Settings (gear icon), find "Cowork Settings" or "Global Instructions", and add your instructions.
We have created ready-to-use templates for four common roles. Download the one that fits you best and customize it:
What Goes in Global Instructions
Here is the structure every global instruction file should follow:
About Me — your role, industry, timezone, and work style. Example: "Role: Account Executive at a B2B SaaS company. Timezone: US Pacific. Work style: Direct, concise, no corporate jargon."
Communication Preferences — how you want Claude to format output. Example: "Use bullet points for lists. Keep explanations brief. When suggesting multiple options, rank them by recommendation."
Role-Specific Rules — the things that matter for your specific job. For sales reps, this might be "keep emails under 100 words" and "always research prospects before writing." For analysts, it might be "show summary statistics first" and "use descriptive variable names."
Default Behaviors — things Claude should always do. Example: "Include a TL;DR at the top of every document. Always show me a draft before sending anything. If unsure, ask rather than guess."
Never Do — hard constraints. Example: "Never send emails without my approval. Never delete files without confirmation. Never access my personal Documents folder."
Folder Instructions
Folder instructions add project-specific context. When you select a folder in Cowork, Claude looks for a .cowork-instructions.md file inside it and uses that context for the session.
Example: For a folder at ~/Projects/mobile-app-redesign/, you might include the project goal, target users, launch date, team conventions, design system, and current focus area.
You can either create this file manually or just tell Claude: "Create folder instructions for this project that include these details." Claude will create and update the file as you work.
Plugins: Your Workflow Supercharger
Plugins are pre-built packages that customize Cowork for specific roles and workflows. Each plugin bundles skills, connectors, slash commands, and specialized behaviors.
What Plugins Are Available
The built-in plugin library includes:
- Sales — prospecting, outreach, CRM management, follow-up tracking
- Finance — financial analysis, reporting, forecasting, expense auditing
- Legal — contract review, clause extraction, research
- Marketing — content creation, campaign planning, analytics
- HR — recruiting, onboarding, employee documentation
- Engineering — code review, documentation, debugging
- Design — asset organization, design system management
- Operations — process documentation, workflow automation
- Data Analysis — cleaning, visualization, statistical analysis
Browse all plugins by typing /plugins in Cowork or visiting the official collection on GitHub.
Installing a Plugin
From the Plugin Library (easiest): In a Cowork task, type /plugins, browse the available options, and click "Install." Done. The plugin's commands are now available.
From a file: If someone shares a plugin file, save it to your computer, go to Cowork Settings > Plugins, click "Install from file," and select it.
Plugins are saved locally on your machine. They do not upload to Anthropic's servers. Only you have access to your installed plugins.
Using Plugins
Once installed, plugins add slash commands you can use in Cowork. Type / to see all available commands.
Example with the Sales plugin: After installing, you get commands like:
- /prospect — research a company and draft personalized outreach
- /followup — generate follow-up email based on previous conversation
- /qualify — score a lead based on fit criteria
- /brief — create pre-call briefing doc with company research
How it works in practice: Type /prospect, fill in the company name, prospect name, their role, and any context (like "they just raised Series B funding"). Hit Enter. Claude will research the company, look up the prospect, draft a personalized email, and show you the research plus draft for review.
That is a 15-minute task done in 30 seconds.
Customizing a Plugin
Don't like how a plugin works? Change it. Go to Settings > Plugins, find the plugin, click "Edit" or "Customize," and modify the files. Plugins are just markdown and config.
Example customization: Change the Sales plugin's outreach instruction from "Draft emails that are professional and concise" to:
- Conversational, not corporate (use contractions, be warm)
- Under 75 words (busy people skim)
- Include ONE specific observation about their company from research
- End with a question, not a request for a meeting
- Never use buzzwords like "synergy," "leverage," or "innovative"
Now every email the plugin drafts follows YOUR style.
Building Your Own Plugin
Want something completely custom? Cowork includes Plugin Create — a built-in assistant that builds plugins for you. Type /create-plugin and describe what you want. Claude will ask clarifying questions, generate the plugin structure, create slash commands, and test it with you.
Download the Plugin Starter Kit for the full folder structure, example YAML configs, and command definitions you can use as a starting point.
A plugin is just a folder containing:
- plugin.yaml — metadata (name, description, version, commands, skills)
- instructions.md — how Claude should behave with this plugin
- commands/ — slash command definitions (YAML files with inputs and instructions)
- skills/ — reusable capabilities (markdown files)
- README.md — documentation for you
Organization-Managed Plugins (Team and Enterprise)
If you are on a Team or Enterprise plan, your organization can distribute plugins to everyone, create internal plugin marketplaces, set required plugins for specific roles, and control permissions. Organization-managed plugins update automatically when admins push changes. Ask your admin about available org plugins.
Scheduled Tasks and Automation
Scheduled tasks let you delegate recurring work to Cowork. Set it up once, and Claude runs it automatically on your schedule.
Download all 7 scheduled task templates — ready to copy into Cowork.
What Scheduled Tasks Can Do
- Daily reports — sales pipeline, project status, team updates
- Email processing — inbox summaries, priority flagging, draft responses
- Research monitoring — track competitors, industry news, regulatory changes
- Data updates — refresh dashboards, update spreadsheets, generate charts
- File management — organize downloads, backup files, clean temp folders
- Meeting prep — pre-call briefings, agenda creation, note synthesis
How They Work
When you create a scheduled task, Claude saves your prompt as the task's instructions. It runs at the cadence you choose — daily, weekly, monthly, or on-demand. Each run is its own Cowork session that you can review afterward.
Important: Tasks only run while your computer is awake and Claude Desktop is open. If your computer is asleep at the scheduled time, the task will not run. This is a preview feature, not production-grade automation.
Creating a Scheduled Task
Method 1 — From an existing task: Start a Cowork task and run it manually first to make sure it works. Then type /schedule, fill in the name, frequency, time, and output folder.
Method 2 — From the Scheduled Tasks page: Click "Scheduled" in the left sidebar, click "New scheduled task," write the instructions, set the schedule, choose folder access, and save.
Example: Daily Inbox Summary (Every Morning at 8 AM)
"Connect to Gmail and check my inbox. Flag anything urgent from customers, investors, or containing 'URGENT.' Categorize the rest as Hot (reply today), Warm (reply this week), Cold (FYI). Create a summary saved to ~/Daily-Reports/ with sender, subject, and one-line summary for each email. Do not draft replies — just summarize."
Example: Weekly Competitor Monitoring (Every Monday at 9 AM)
"Research news about our top 3 competitors from the past week. For each, find product launches, funding news, key hires, and customer wins. Create a markdown report saved to ~/Competitor-Intel/ with a summary, source links, and analysis of how it affects our positioning."
Example: Friday Status Report (Every Friday at 4 PM)
"Read project files in ~/Projects/. Check for files modified this week, outstanding TODOs, and blockers mentioned in meeting notes. Generate a status report with accomplishments, planned work, blockers, and asks. Save to ~/Status-Reports/."
Example: Email Follow-Up Tracker (Every Monday at 10 AM)
"Check my Sent folder for outreach emails from last week. Find emails with no reply after 3 days. Draft a follow-up for each using a different angle from the original. Save all drafts to ~/Drafts/ for my review. Do not send anything."
Managing Scheduled Tasks
- View all tasks: Click "Scheduled" in the left sidebar
- Edit a task: Click on the task name, then "Edit"
- Pause or resume: Click the toggle next to a task
- Run manually: Click "Run now" on any scheduled task (great for testing)
- View history: Click on a task to see past runs, results, and any errors
Best Practices
- Test manually first — run the task interactively before scheduling
- Be specific — vague instructions lead to inconsistent results
- Set output locations — tell Claude exactly where to save files
- Monitor the first few runs — check results for the first week
- Keep your computer awake — tasks require Claude Desktop to be running
Avoid scheduling risky tasks — do not schedule tasks that delete files or send emails without review. Do not over-schedule — too many tasks can hit usage limits. Do not assume reliability — this is a preview feature.
Security and Best Practices
Cowork is powerful. It can read, write, and delete files on your computer. Use it safely.
Built-In Safety Measures
Anthropic has implemented several protections:
- Isolated VM — Cowork runs in a virtual machine, not directly on your system
- Permission controls — you explicitly grant folder and file access
- Action confirmation — Claude asks before destructive operations
- Monitoring tools — you can see what Claude is doing in real time
- Safe mode — you can pause or stop tasks anytime
Seven Rules for Safe Cowork Use
Rule 1: Be selective about file access. Create a dedicated ~/Claude-Work/ folder. Never grant access to your entire home directory. Keep financial records, passwords, API keys, personal photos, and system directories out of reach. Always keep backups elsewhere.
Rule 2: Monitor for unexpected behavior. Watch for red flags: Claude accessing files or websites you did not mention, task scope expanding beyond what you asked, requests for credentials, or strange network activity. If something feels off, stop the task immediately.
Rule 3: Be cautious with scheduled tasks. Good scheduled tasks are read-only analysis, creating new files, and organizing existing files. Risky scheduled tasks involve deleting files automatically, sending emails without review, making API calls to external services, or anything involving credentials.
Rule 4: Limit browser and web access. Only allow access to sites you trust. Malicious websites can contain hidden prompt injection attacks that try to hijack Claude's behavior.
Rule 5: Vet plugins and MCPs carefully. Safe plugins come from Anthropic's official collection, trusted sources with clear documentation, and sources you have reviewed. Risky plugins come from unknown developers, request broad permissions, or have vague descriptions. Before installing, check who made it, what permissions it requests, and look at the code.
Rule 6: Be mindful of cross-app data sharing. If using Claude for Excel or PowerPoint add-ins with Cowork, sensitive data can flow between apps automatically. Avoid working with sensitive data in these add-ins while Cowork is active.
Rule 7: Report suspicious behavior. If Claude discusses unrelated topics, attempts to access unexpected resources, requests sensitive information unprompted, or acts in ways that do not match your instructions — stop the task and report it to safety@anthropic.com.
Your Responsibility
You remain responsible for all actions Claude takes on your behalf — files created or deleted, emails sent, code run, API calls made, and any legal or compliance implications. Treat Cowork like delegating to a very capable intern: oversee the work, check outputs, and do not ask it to do things you would not be comfortable with.
Current Limitations
Cowork is a research preview. It does not yet have audit logs (activity is not captured in Anthropic's Compliance API). It is not suitable for regulated workloads like HIPAA or SOC 2. It does not have guaranteed uptime, and enterprise controls are basic. If you need audit logs or compliance guarantees, use standard Claude chat instead.
Real-World Workflows by Role
For Sales Reps
Morning routine automation: Schedule a daily task at 7:30 AM to check your CRM exports, identify deals closing this week, flag deals that have not moved in 5+ days, and list new inbound leads from yesterday. Output: a daily dashboard saved to ~/Sales-Dashboard/.
Prospect research workflow: Tell Claude to research a company and prospect. It will search for recent news and funding, look up the contact on LinkedIn, identify pain points, and draft a personalized cold email — then show you the research and draft for approval before anything is sent.
Follow-up cadence automation: Schedule a Monday task to check your Sent folder for outreach emails with no reply after 3 days. Claude drafts follow-ups using a different angle from the original and saves them for your review. Nothing sends automatically.
For Content Creators
Weekly content calendar: Schedule a Friday task to generate 5 content ideas for next week based on trending topics, content gaps, and seasonal relevance. Each idea includes a hook, key points, target platform, and suggested publish date.
Batch content repurposing: Give Claude a blog post and ask it to repurpose into 3 Twitter threads, 1 LinkedIn post, and 1 email newsletter — each adjusted for the platform's tone and format. All saved as separate files for your review.
For Data Analysts
Automated data pipeline: Schedule a Monday task to check for new CSV files, clean data (handle nulls, fix formatting), run QA checks, update the master dataset, and generate a visual dashboard with key trends and anomalies.
Ad-hoc analysis: Give Claude a sales data file and ask what is driving a conversion rate drop. It calculates conversion by time period, source, product, and region, runs statistical tests, creates visualizations, and presents hypotheses with next steps.
For Project Managers
Weekly status reports: Schedule a Friday task at 4 PM that reads your project files, checks what was modified this week, finds outstanding TODOs and blockers, and generates a status report with accomplishments, planned work, risks, and asks from leadership.
Meeting prep: Tell Claude to prep you for a meeting. It reads your project brief, creates an agenda with time-boxed sections, prepares talking points, lists questions to ask, and saves everything as a meeting prep doc.
For Finance Professionals
Monthly P&L analysis: Give Claude your actuals and budget files. It compares revenue, COGS, gross margin, and OpEx by department, calculates variances, flags anything over 10%, creates charts, and generates an executive summary with wins, concerns, and recommendations.
Expense policy enforcement: Schedule a monthly task to check employee expense reports for missing receipts, amounts over policy limits, incorrect categories, and missing manager approvals. Output: a summary with policy violations and trends.
For Researchers
Literature review automation: Ask Claude to research a topic. It searches for recent papers, extracts the core thesis, key findings, and methodology from each, synthesizes emerging themes and gaps, and saves a full literature review with citations.
Interview transcript analysis: Point Claude at a folder of interview transcripts. It reads all of them, extracts key quotes, identifies recurring themes using thematic analysis, groups by frequency, and creates a report with top themes, supporting quotes, and recommendations.
Advanced Tips
Chain Tasks With Explicit Handoffs
Instead of one massive task, break it into steps with a review point between them:
- Task 1: "Research Acme Corp and save findings to ~/Research/acme-research.md"
- Task 2 (after reviewing): "Read ~/Research/acme-research.md and draft an outreach email"
This gives you a chance to verify the research before Claude acts on it.
Create Template Files for Common Outputs
Save a template file like ~/Templates/weekly-report-template.md with your preferred structure (Key Accomplishments, Challenges, Next Week's Focus, Blockers). Then tell Claude: "Generate this week's report using the template at ~/Templates/weekly-report-template.md."
Organize With a Standard Folder Structure
Keep Cowork outputs organized:
- ~/Claude-Work/Daily/ — daily automated task outputs
- ~/Claude-Work/Weekly/ — weekly scheduled task outputs
- ~/Claude-Work/Research/ — ad-hoc research outputs
- ~/Claude-Work/Drafts/ — emails and docs for review
- ~/Claude-Work/Final/ — approved, ready-to-use outputs
- ~/Claude-Work/Archive/ — old outputs
Build a Task Library
Document your best task prompts as "run books" so you can reuse them:
"~/Task-Library/competitor-research.md — Research [Competitor Name] for the past 30 days. Find product updates, funding news, key hires, and customer wins. Create a markdown report with sources. Save to ~/Competitor-Intel/. Frequency: Weekly, Monday 9 AM."
Debug Complex Tasks
If a task is not working, simplify and isolate. Instead of "Analyze this data, create charts, and generate a report," try each step separately. Ask Claude to explain its plan before starting: "Before you start, tell me step-by-step what you plan to do." Add checkpoints: "After each step, show me what you have done so far and wait for me to say continue."
Download Everything
Grab all the templates you need:
- Global Instructions — Sales Rep
- Global Instructions — Data Analyst
- Global Instructions — Project Manager
- Global Instructions — Content Writer
- Scheduled Task Templates (7 tasks)
- Plugin Starter Kit
Getting Started in Three Steps
- Install Claude Desktop and open Cowork. Run your first simple task to confirm everything works.
- Set up global instructions using our templates. Pick the one closest to your role and customize it in five minutes.
- Install one plugin for your role and try a slash command. See how much time it saves on a real task.
Once you are comfortable, add a scheduled task for something repetitive — an inbox summary, a weekly report, or competitor monitoring. Build from there.
The more you use Cowork, the better it gets at matching your style and understanding your needs. Start small. Build gradually. Let it compound.