What is Cowork?

Cowork is Anthropic's agentic tool for knowledge workers โ€” think Claude Code, but for non-developers.

It runs in a lightweight Linux VM on your computer, giving Claude the ability to:

  • Create and edit documents (Word, Excel, PowerPoint, PDF)
  • Browse the web and research topics
  • Execute code and scripts
  • Connect to external tools via MCP (Model Context Protocol)

Available on: Pro and Max plans

What Are Plugins?

Plugins are pre-built bundles that give Cowork superpowers in specific domains.

Each plugin includes:

Component

What It Does

Skills

Domain expertise and workflows

Slash Commands

Quick actions (e.g., /review-contract)

MCP Connectors

Connect to external tools (CRM, databases, etc.)

Sub-agents

Specialized AI workers for specific tasks

Result: Instead of prompting from scratch, you get instant expertise.

The 11 Official Plugins

Anthropic released these open-source plugins on GitHub:

Plugin

Use Case

Key Skills

Productivity

Task management, memory

/start, /update, task tracking

Enterprise Search

Search across all sources

Multi-source queries, knowledge synthesis

Sales

Pipeline, outreach, research

/call-prep, /draft-outreach, /pipeline-review

Finance

Close, reconciliation, analysis

/journal-entry, /variance-analysis, /reconciliation

Legal

Contracts, NDAs, compliance

/review-contract, /triage-nda, /compliance

Marketing

Campaigns, content, SEO

/campaign-plan, /draft-content, /seo-audit

Product Management

Specs, roadmaps, research

/write-spec, /roadmap-update, /synthesize-research

Data

Analysis, visualization

Data insights, trend identification

Customer Support

Ticket handling, responses

Response templates, escalation

Biology Research

Scientific workflows

Research synthesis, literature review

How to Enable Plugins

Step 1: Access Cowork

  1. Open Claude.ai (Pro or Max plan required)
  2. Click the Cowork button (bottom left)
  3. Wait for the VM to initialize

Step 2: Select a Folder

When prompted, select a folder on your computer. This becomes your workspace where:

  • Claude can read/write files
  • Outputs are saved
  • Context files live

Step 3: Browse Available Plugins

Plugins appear in the skills list. Check available skills by asking:

What skills do you have available?

Or look for the / slash command menu.

Step 4: Use Slash Commands

Each plugin comes with slash commands. Examples:

/campaign-plan          โ†’ Generate a full marketing campaign
/review-contract        โ†’ Analyze a contract against your playbook
/write-spec             โ†’ Create a PRD from a feature idea
/draft-outreach         โ†’ Research prospect + draft personalized email
/journal-entry          โ†’ Prepare month-end journal entries

Setting Up Your Personal OS

The most powerful Cowork setup combines plugins with a Personal Operating System โ€” a folder structure that gives Claude persistent memory.

Claude/
โ”œโ”€โ”€ CLAUDE.md           โ† Attach this to start each session
โ”œโ”€โ”€ Context/
โ”‚   โ”œโ”€โ”€ profile.md      โ† Your preferences, goals, work style
โ”‚   โ””โ”€โ”€ projects.md     โ† Active projects and status
โ”œโ”€โ”€ Inbox/              โ† Drop files for Claude to process
โ”œโ”€โ”€ Outbox/
โ”‚   โ””โ”€โ”€ Daily/          โ† Daily briefings saved here
โ”œโ”€โ”€ Logs/               โ† Session logs
โ””โ”€โ”€ schedule.md         โ† Weekly/monthly recurring tasks

The CLAUDE.md File

This is your "brain file" โ€” attach it to every session. It tells Claude:

  • Who you are and how you work
  • Your active projects and priorities
  • How to run your morning routine
  • Where to find/save files

Pro tip: Start each day with "Let's start our day" and Claude will:

  1. Read your context files
  2. Ask what would make today a win
  3. Review your todo list
  4. Fetch relevant stats (YouTube, LinkedIn, etc.)
  5. Create a daily briefing

Plugin Deep Dives

Marketing Plugin

Best for: Campaign planning, content creation, SEO, brand consistency

Key commands:

Command

What It Does

/campaign-plan

Full campaign brief with objectives, channels, calendar

/draft-content

Blog posts, social media, emails, landing pages

/seo-audit

Keyword research, on-page analysis, content gaps

/brand-review

Check content against your style guide

/competitive-analysis

Competitor positioning and messaging comparison

Example workflow:

/campaign-plan for a product launch targeting enterprise CTOs,
$50K budget, 6-week timeline

Sales Plugin

Best for: Pipeline management, call prep, prospecting, competitive intel

Key commands:

Command

What It Does

/pipeline-review

Analyze deals, flag risks, prioritize actions

/call-prep

Account context, attendee research, agenda

/draft-outreach

Research prospect + personalized email

/forecast

Weighted forecast with best/likely/worst scenarios

/competitive-intelligence

Build battlecards for competitors

Example workflow:

/call-prep for my meeting with Acme Corp tomorrow โ€”
they're evaluating our enterprise plan

Finance Plugin

Best for: Month-end close, reconciliation, variance analysis, SOX compliance

Key commands:

Command

What It Does

/journal-entry

Prepare entries with debits, credits, documentation

/reconciliation

GL to subledger, bank, third-party balances

/variance-analysis

Decompose variances with narrative explanations

/income-statement

Generate P&L with period-over-period comparison

/sox-testing

Sample selection, workpapers, control assessments

Example workflow:

/variance-analysis for Q4 marketing spend โ€”
we're $200K over budget and I need to explain why

Best for: Contract review, NDA triage, compliance, risk assessment

Key commands:

Command

What It Does

/review-contract

Flag deviations from your negotiation playbook

/triage-nda

Classify as GREEN/YELLOW/RED for review priority

/compliance

GDPR, CCPA, DPA review, data subject requests

/legal-risk-assessment

Severity-by-likelihood framework

/respond

Generate templated responses to common inquiries

Example workflow:

/triage-nda โ€” attached is a new NDA from a vendor,
tell me if this needs full counsel review

Product Management Plugin

Best for: PRDs, roadmaps, user research synthesis, stakeholder updates

Key commands:

Command

What It Does

/write-spec

Full PRD from a feature idea

/roadmap-update

Reprioritize using RICE, MoSCoW, or ICE

/synthesize-research

Turn interview notes into structured insights

/stakeholder-update

Tailored updates for execs, eng, or customers

/competitive-brief

Feature comparison and positioning analysis

Example workflow:

/write-spec for a user notification preferences feature โ€”
users are complaining about too many emails

MCP Connectors

Plugins connect to external tools via Model Context Protocol (MCP).

Available Connectors

Connector

What It Connects

Slack

Read/send messages, search channels

Notion

Read/write pages and databases

Google Analytics

Pull traffic and conversion data

Facebook Ads

Campaign insights, ad library search

n8n

Execute automation workflows

GitHub

Issues, PRs, code search

Salesforce

CRM data, pipeline

HubSpot

Contacts, deals, marketing

Setting Up Connectors

  1. Ask Claude: "What connectors are available?"
  2. For missing connectors, use: "Search for [tool name] connector"
  3. Follow the OAuth flow to authenticate
  4. Connector becomes available in your session

Power User Tips

1. Stack Plugins for Complex Workflows

Example: Launching a product

1. /write-spec โ†’ Define the feature
2. /campaign-plan โ†’ Plan the launch
3. /draft-content โ†’ Create launch content
4. /draft-outreach โ†’ Prepare sales enablement

2. Use Context Files for Memory

Claude doesn't remember between sessions. Keep critical info in:

  • profile.md โ€” Your preferences and goals
  • projects.md โ€” Active work and status
  • Domain-specific files โ€” Playbooks, templates, guidelines

3. Create Custom Slash Commands

Use the /create-shortcut command to build your own:

/create-shortcut "weekly-report" that generates a marketing
performance summary using Google Analytics data

4. Batch Similar Tasks

Instead of one-off requests, batch work:

Review these 5 contracts and create a summary table
showing risk level, key deviations, and recommended actions

5. Let Claude Work Autonomously

For complex tasks, give Claude permission to work through multiple steps:

Research our top 3 competitors, create battlecards for each,
and save them to the Outbox folder. Work through this autonomously.

Troubleshooting

"Plugin not found"

โ†’ Check if plugin is enabled in your plan settings

"Connector not authenticated"

โ†’ Re-authenticate the MCP connector

"File not saved"

โ†’ Make sure you've selected a workspace folder

"Context lost between sessions"

โ†’ Attach your CLAUDE.md file at the start of each session

Resources

Quick Start Checklist

  • Upgrade to Pro or Max plan
  • Open Cowork from Claude.ai
  • Select a workspace folder
  • Create your Personal OS folder structure
  • Write your CLAUDE.md file
  • Try a slash command (/draft-content)
  • Connect an MCP source (Slack, Notion, etc.)
  • Run your first morning routine

Guide created by Rananjay Raj โ€” Marketing Automation Specialist Follow for more AI workflow breakdowns