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Courses/Claude Mastery/Tools, MCP and Skills

MCP without the jargon

8 min readTools, MCP and Skills

MCP is a standardized way for AI apps to connect to external tools and data. Conceptually, it lets Claude interact with systems outside the conversation.

  • MCP server: the connector that exposes capabilities.
  • Tools: actions Claude can call.
  • Resources: data Claude can inspect.
  • Permissions: what Claude is allowed to access or change.
  • Risk: every tool expands what a wrong instruction could affect.

MCP fit check

Evaluate whether this workflow needs MCP. Identify the external system, required tools, required permissions, failure modes, and human approval checkpoints. Workflow: [paste]