How to Install the PM Skills Marketplace for Claude Cowork: Complete Guide

You can install the PM Skills Marketplace for Claude Cowork by adding the repository phuryn/pm-skills via the Customize panel (Browse plugins → Personal → + → Add marketplace from GitHub) or by running claude plugin marketplace add phuryn/pm-skills in the CLI.

The PM Skills Marketplace is a curated collection of nine Claude plugins that provide domain-specific product management capabilities. Hosted in the phuryn/pm-skills repository, this marketplace bundles frameworks, templates, and analyses into instantly callable skills and slash commands. Once installed, Claude Cowork automatically loads all nine plugins, enabling workflows like /discover and /strategy without additional configuration.

What Is the PM Skills Marketplace?

The marketplace is defined by a JSON manifest located at .claude-plugin/marketplace.json in the repository root. This manifest enumerates nine plugin packages:

• pm-toolkit
• pm-product-strategy
• pm-product-discovery
• pm-market-research
• pm-data-analytics
• pm-marketing-growth
• pm-go-to-market
• pm-execution
• pm-ai-shipping

Each plugin follows a standardized structure containing a skills/ folder with markdown-formatted skill definitions (*.md) and a commands/ folder with slash-command definitions (*.md). When you install the marketplace, Claude downloads the manifest and registers all plugins simultaneously, making commands like /discover, /strategy, and /plan-launch available immediately.

Installation Methods

You have two primary paths to install the marketplace: the Claude Cowork user interface or the command-line interface.

Method 1: Claude Cowork UI Installation

This is the recommended approach for non-developers. The UI automatically handles manifest registration and plugin installation.

1. Open the Customize panel in the bottom-left corner of the Claude Cowork window.
2. Navigate to Browse plugins → Personal → +.
3. Select Add marketplace from GitHub and enter the repository identifier phuryn/pm-skills.
4. Confirm the installation.

Claude Cowork downloads the marketplace manifest from .claude-plugin/marketplace.json and installs all nine plugins automatically. You will see the full command set appear in your workspace immediately.

Method 2: Claude Code CLI Installation

For developers or users preferring terminal workflows, use the claude CLI to register the marketplace and install individual plugins.

First, register the marketplace:

claude plugin marketplace add phuryn/pm-skills

Then install the specific plugins you need (or install all nine):

claude plugin install pm-toolkit@pm-skills
claude plugin install pm-product-strategy@pm-skills
claude plugin install pm-product-discovery@pm-skills
claude plugin install pm-market-research@pm-skills
claude plugin install pm-data-analytics@pm-skills
claude plugin install pm-marketing-growth@pm-skills
claude plugin install pm-go-to-market@pm-skills
claude plugin install pm-execution@pm-skills
claude plugin install pm-ai-shipping@pm-skills

The CLI reads the same manifest file as the UI, ensuring identical plugin behavior across installation methods.

Method 3: Codex CLI Installation

If you are using Codex CLI, the workflow is similar:

codex plugin marketplace add phuryn/pm-skills
codex plugin add pm-toolkit@pm-skills
codex plugin add pm-product-strategy@pm-skills

Replace pm-product-strategy with any other plugin identifier from the nine available packages.

Marketplace Architecture and Key Files

Understanding the underlying structure helps troubleshoot installation issues and customize your workflow.

The Manifest File

The .claude-plugin/marketplace.json file serves as the source of truth. It lists all available plugins and their metadata. When you add the marketplace via UI or CLI, Claude reads this file to determine which plugin packages to fetch.

Plugin Structure

Each plugin directory (e.g., pm-toolkit/, pm-product-strategy/) contains:

• skills/ – Markdown files defining reusable capabilities and frameworks
• commands/ – Markdown files defining Claude-specific slash commands that chain skills into workflows

This separation allows commands to act as thin wrappers that invoke one or more skills in sequence. For example, the /discover command runs four discovery skills sequentially: brainstorming ideas, identifying assumptions, prioritizing assumptions, and designing experiments.

Documentation References

• README.md – Central documentation at the repository root explains installation and provides an overview of all plugins.
• Plugin-specific READMEs – Files like pm-toolkit/README.md and pm-product-strategy/README.md detail individual plugin capabilities.

Using Commands After Installation

Once installation completes, invoke skills directly or use prefixed commands:

/discover AI-powered meeting summarizer for remote teams

Claude automatically loads the relevant skills based on conversation context. For explicit skill loading, use the prefix syntax:

/pm-product-discovery:assumption-mapping

Summary

• The PM Skills Marketplace (phuryn/pm-skills) bundles nine product management plugins into a single installable unit.
• UI Installation requires navigating to Customize → Browse plugins → Personal → + → Add marketplace from GitHub, then entering phuryn/pm-skills.
• CLI Installation uses claude plugin marketplace add phuryn/pm-skills followed by claude plugin install <plugin-name>@pm-skills.
• Automatic Loading occurs immediately after installation—commands like /discover and /strategy require no additional setup.
• Core Architecture relies on .claude-plugin/marketplace.json to define plugins, with each plugin containing skills/ and commands/ folders.

Frequently Asked Questions

How do I verify that the PM Skills Marketplace installed correctly?

After installation, type / in the Claude Cowork chat input to see available slash commands. If you see commands like /discover, /strategy, and /plan-launch, the marketplace is active. You can also check the Customize panel to confirm all nine plugins appear in your installed plugins list.

Can I install only specific plugins from the marketplace instead of all nine?

Yes. While the UI method installs all plugins automatically, the CLI method allows selective installation. After running claude plugin marketplace add phuryn/pm-skills, install only the specific plugins you need (e.g., claude plugin install pm-toolkit@pm-skills) rather than all nine.

What is the difference between skills and commands in the PM Skills Marketplace?

Skills are individual capabilities (frameworks, templates, analyses) stored as markdown files in each plugin's skills/ folder. Commands are user-facing slash commands (like /discover) stored in commands/ folders that chain multiple skills into end-to-end workflows. Commands provide guided experiences while skills offer modular, reusable components.

Where are the skill definitions stored in the repository?

Skill definitions reside in markdown files within each plugin's skills/ directory. For example, the pm-toolkit plugin stores its skills in pm-toolkit/skills/*.md. These files contain the prompts, frameworks, and instructions that Claude uses when you invoke a skill or command.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}