# AI agent tools vs skills vs MCP: what each one is and which to turn on

Tools let an AI agent act, skills tell it how to do a kind of job, and MCP is the plug that connects outside apps. Plain-language definitions, examples, and which ones to switch on first.

Canonical HTML: https://agentlane.net/guides/ai-agent-tools-vs-skills-vs-mcp/

## Steps

1. **Start with read tools.** Search, read, and look-up tools first. They let you judge the agent’s work without risk. See [read-only before trade connectors](https://agentlane.net/guides/read-only-quote-before-trade-connector/).
2. **Add one MCP connection at a time.** Connect one app, use it for a few days, then decide on the next. See [one connector at a time](https://agentlane.net/guides/one-connector-at-a-time/).
3. **Switch off tools the job does not need.** Many assistants let you disable single tools inside a connection. Turn off send, delete, and spend tools you will not use. See [connect only what you need](https://agentlane.net/guides/connect-only-what-you-need/).
4. **Read skills before installing.** Open the skill and skim it. Skip any that ask the agent to fetch keys, skip approvals, or run unknown scripts.
5. **Keep approval on for anything that acts.** Sending, posting, buying, trading, and deleting wait for your yes. See [review before place](https://agentlane.net/guides/review-before-place/).
6. **Revoke when idle.** Disconnect apps you have not used in a couple of weeks. See [revoke connectors when idle](https://agentlane.net/guides/revoke-connectors-when-idle/).

## FAQ

### What is the difference between an AI agent tool and a skill?

A tool is an action the agent can take, such as searching or sending. A skill is a set of instructions that helps it do one kind of job well using the tools it already has.

### Is MCP the same as a tool?

No. MCP is the standard used to connect an outside app. Each MCP connection usually brings in several tools from that app.

### Are MCP servers safe?

They are as safe as the tools they expose and the approvals you keep. Prefer official servers from the app’s maker, start with read tools, and keep send, spend, and delete tools behind your approval.

### Do skills give an agent more access?

Usually not. A skill guides how the agent works. But a skill can include scripts that run, so read it before you install it.

### Where do I find a list of AI agent tools?

Your assistant’s settings list the tools each connection provides. Use that list, not a public catalog, to decide what to switch on.

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