Domain 8 – Tools and MCPs (10.6%)

3 lessons, each ending with a practice scenario (Pro)

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1. ✓8.1 — Tool ImplementationA tool is an action Claude can ask for. A tool you define has three parts: name, description, inputschema. When the model decides whether to call a tool, it reads only those three surfaces. If it chose badly, the information it needed was missing from one of them.Scenario: Pro
2. ✓8.2 — MCP Server DevelopmentMCP is a standard protocol for connecting an application to an outside system. An MCP server wraps the system and offers capabilities. Tools a server offers are ordinary tools — everything in 8.1 applies.Scenario: Pro
3. ✓8.3 — Agentic CustomisationFour mechanisms: built-in tools, custom tools, Skills, MCP servers. This sub-skill is choosing between them.Scenario: Pro