Claude Tool Schemas and MCP Servers

The Tool Design and MCP Integration domain of the CCAR-F blueprint, weighted at 18 percent, covering tool descriptions that route calls correctly, structured error responses, tool choice modes, MCP server configuration scopes, and the built-in file and search tools in Claude Code.

3 sections ยท 8 lessons

Course outline

Tool Interfaces

  1. Descriptions Route Tool Calls
  2. The Five-Element Description
  3. Splitting and Constraining Tools
  4. First Fix for a Misrouting Agent

Failure Contracts

  1. Four Categories of Tool Error
  2. Access Failure Versus Empty Result
  3. Triaging a Refund Tool

Toolkits and Integration

  1. Tool Choice and Toolkit Size
  2. MCP Server Configuration Scopes
  3. Grep, Glob, and the Edit Recovery
  4. Equipping a Research Agent

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