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Use a Claude Code plugin to package and distribute a reusable setup of skills, agents, hooks, and optionally MCP servers. Configure an MCP server directly when Claude Code needs to connect to a particular external tool, database, or API. They are not mutually exclusive: a plugin can bundle an MCP server alongside other Claude Code components.
What is the difference between a plugin and an MCP server?
Claude Code plugins package behavior
A plugin is an installable directory of Claude Code components, usually with a manifest. It can include skills (instructions Claude loads when relevant), agents (subagent definitions), hooks (commands run at lifecycle points), and MCP servers. Anthropic describes the packaging use case this way: “Use a plugin when you want several skills, subagents, hooks, or MCP servers packaged as one unit.” Anthropic’s Claude Code Plugins overview explains that plugins can make a ready-made setup installable as a unit and support sharing versioned setups across projects. Individual components can also be used without a plugin.
MCP servers connect to external systems
An MCP server connects Claude Code to external tools, databases, and APIs through the Model Context Protocol (MCP), an open standard. Anthropic describes MCP as “an open protocol that standardizes how applications provide context to LLMs.” Anthropic’s MCP overview introduces the protocol; the Claude Code MCP reference covers its use in Claude Code.
Anthropic suggests connecting a server when you find yourself copying information from another tool into chat and want Claude Code to read or act on that system directly. Documented examples include issue trackers, monitoring systems, databases, design systems, and workflow tools. Those examples do not mean every integration has the same permissions or capabilities.
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Which one should you use?
| Need | Best fit | Why |
|---|---|---|
| Connect Claude Code to a particular service or data source | Standalone MCP server | MCP provides the connection; a larger bundle is not necessary. |
| Install or share a reusable set of Claude Code behaviors | Plugin | A plugin can package skills, agents, hooks, and potentially MCP servers as one setup. |
| Distribute an MCP integration with related Claude Code behaviors | Plugin containing an MCP server | The plugin is the packaging and distribution layer; MCP supplies the external connection. |
| Complete a one-off task using existing session tools or project instructions | Neither by default | There is no need to install an extension just because a task is one-off. |
The last recommendation is practical advice, not a quoted Anthropic rule. The key distinction is purpose: plugins package Claude Code components, while MCP servers connect Claude Code to external systems.
How do sharing and configuration differ?
Plugin scopes
Claude Code plugin scopes include:
- User: available across projects on that computer.
- Project: enabled for repository collaborators through committed Claude settings, although each collaborator installs the plugin locally.
- Local: available only to the user in that repository.
Plugins can support distribution as versioned releases, but a shared project setup does not mean collaborators automatically receive every component’s credentials or authorization.
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- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
MCP scopes
MCP server configuration has local, project, and user scopes. Project-scoped configuration is stored in .mcp.json for sharing and requires user approval before Claude Code uses the server. Plugin and MCP scopes belong to separate configuration systems; installing a plugin does not automatically commit MCP credentials or authorize teammates to access a service.
What transport should an MCP server use?
Anthropic’s current Claude Code MCP reference recommends remote HTTP when available. It also describes local stdio servers, which run as processes on the machine and suit tools that need direct system access or custom scripts. The reference marks Server-Sent Events (SSE) as deprecated in favor of HTTP where available. Transport guidance can change, so check the current MCP reference when configuring a server.
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- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
What should you consider before enabling either?
Plugins affect the session beyond the moment you invoke a component
An enabled plugin participates in every session. Skill, agent, and command names or descriptions can occupy context; plugin-defined MCP processes run alongside sessions when enabled, and hooks run at their configured lifecycle events. Plugins execute with the user’s privileges, so review their source and behavior before installation. These costs are worth weighing when deciding whether a reusable bundle is useful for your workflow.
MCP servers require trust and permission checks
Verify that you trust each MCP server. A server that fetches external content can expose you to prompt-injection risk, and a project-scoped server declared in .mcp.json requires approval before use. Consider who operates the server, how it authenticates, what permissions it requests, what data it can access, and how it behaves. MCP is a protocol, not a certification that every server is safe.
Quick Recap
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- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
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- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
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