Guide
Claude skills vs MCP: what each does, and when you need both
MCP and skills answer different questions. MCP, the Model Context Protocol, is an open standard for connecting Claude to outside tools and data: a help desk, a drive, a database. A skill is a folder of instructions that teaches Claude how to do one task, loaded only when the task comes up. Anthropic's help puts it simply: MCP gives Claude access to tools, and skills teach Claude how to use those tools well. Most teams start with skills, which need nothing connected, and add a connector when a skill needs live data from another system. Review every connector before the team uses it, tool by tool, because it can read and change data elsewhere.
Short answer
- MCP: access to tools and data.
- Skill: how to do a task.
- Together: the connector fetches, the skill says what to do.
- Review connectors tool by tool before connecting.
Side by side
| Skill | MCP connector | |
|---|---|---|
| What it is | Instructions, and sometimes scripts and files, in a folder | A server that exposes tools and data to Claude |
| What it adds | How to do a task: steps, rules, format, examples | Access: search, read, create or change things in another system |
| When it loads | Name and description always; the rest when the task matches | Its tools are available while it's connected |
| Main risk | Scripts that run when used | Tools that write, send or delete elsewhere |
| On Team and Enterprise | Owners can provision skills for everyone | Owners add custom connectors |
From the Claude Help Center, the MCP introduction and Anthropic's engineering post on skills, read 5 November 2026.
A worked example: replies from the help desk
Illustration: a made-up business. A support team already has a reply-tone skill. To stop pasting tickets in, the lead wants Claude to read them from the help desk through its MCP connector, and reviews the connector first:
| Tool | Type | Setting |
|---|---|---|
| search_tickets | Read | Allow |
| get_ticket | Read | Allow |
| add_internal_note | Write | Ask every time |
| send_reply | Write | Off: agents send replies themselves |
| delete_ticket | Write | Off: the job doesn't need it |
Publisher: the help desk's own official server. Sign-in: each agent's own account, so each sees only their queue. Decision: connect with conditions, with send and delete off and a review in 90 days. Now an agent asks for "a reply to ticket 4812": the connector fetches the ticket, the skill writes the reply in the team's tone, and the agent reads it and sends it.
Choose
- Start with a skill if the task works on what people can paste or upload.
- Add a connector when the skill needs live data from another system.
- Review the connector tool by tool, and turn off any write the job doesn't need.
- Keep the method in the skill, not in each person's prompt.
Next step: sharing both with the team
Skills and connectors both need to reach everyone the same way. The cheapest way to share AI prompts with a small team compares the options, and serving skills over MCP to Claude Desktop shows the two working together.
Skills for this
- AI practiceReview an MCP connector before connectingReviews an MCP server or connector before the team connects it: who runs it, each tool sorted read or write, sign-in, data, approvals, and a decision.
- AI practiceTurn a prompt into a skillTurns a prompt that works into a skill the whole team can reuse, with a valid name, a when-to-use description, steps, an output template, an example, and checks.
- Customer successCustomer reply in our toneDrafts a support reply in your team's tone: answers the question first, owns mistakes, drops jargon, and ends with one clear next step.
- AI practiceHarness spec for an AI agentWrites a one-page harness for an AI agent before it runs: done test, tools and limits, progress notes, small steps, stop rules, human approvals, and logs.
Questions
What's the difference between Claude skills and MCP?
MCP connects Claude to outside tools and data, such as a help desk, a drive or a database. A skill is a set of instructions that teaches Claude how to do one task. Anthropic's help puts it this way: MCP gives Claude access to tools, and skills teach Claude how to use those tools effectively.
Do I need MCP to use skills?
No. A skill works on its own with whatever is in the chat: pasted text, uploaded files. You add a connector when the skill needs live data from another system, such as the ticket it should reply to.
Is a skill or an MCP server riskier?
Both need checking. A connector can read or change data in another system, so review its tools and set approvals for anything that writes. A skill can include scripts that run when Claude uses it, so read it before installing.
AI skill
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Sources
- Claude Help Center: What are skills? — "MCP connects Claude to external services and data sources. Skills provide procedural knowledge"; "You can use both together" (read 2026-11-05)
- Model Context Protocol: Introduction — an open-source standard for connecting AI applications to external systems; "like a USB-C port for AI applications" (read 2026-11-05)
- Anthropic: Equipping agents for the real world with Agent Skills (16 October 2025) — name and description pre-loaded; the body loaded when relevant (progressive disclosure); skills can complement MCP servers (read 2026-11-05)
- Claude Help Center: Custom connectors using remote MCP — on Team and Enterprise, owners add custom connectors (read 2026-11-05)