AI Skill Certs
Domain 8·10.6% of exam·8 concepts

Tools and MCPs

Implement tools and MCP servers for Claude and choose between built-in tools, custom tools, Skills, and MCPs for each use case.

8.1

Tool Implementation (4.4%): Tool implementation practices for Claude applications, including tool use and function calling, configuration for external system interaction, tool description writing, error handling, tool usage patterns (agentic harness dispatch, client-side vs. server-side tools, approval patterns), and tool set construction best practices.

8.2

MCP Server Development (2.1%): MCP server development practices, including server authoring, deployment, integration with Claude applications, MCP resources, tools, and prompts, and communication patterns (stdio, sockets, client vs. server).

8.3

Agentic Customization (4.1%): Tradeoffs among built-in Tools, custom Tools, Skills, and MCPs for selecting and applying the appropriate approach for a given use case.

Other exam domains

Domain 1 · 14.7%Agents and WorkflowsDomain 2 · 33.1%Applications and IntegrationDomain 3 · 3.1%Claude CodeDomain 4 · 2.6%Eval, Testing, and DebuggingDomain 5 · 16.8%Model Selection and OptimizationDomain 6 · 11%Prompt and Context EngineeringDomain 7 · 8.1%Security and Safety
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