Section 189 · Appendices, Tools, Templates, and Reference

Appendix: Testing MCP Integrations

MCP turns tools, files, and services into model-accessible capabilities. That makes it a quality and security boundary.

integrationMCP integrationmcp integrations

What to do

  1. Start with contract testing.
  2. Test permission boundaries.
  3. Test prompt injection through resources.
  4. Treat MCP definitions as versioned release artifacts.

Evidence to preserve

  • Preserve the inputs, versions, configurations, raw outcomes, and results for integration, MCP integration, mcp integrations needed to reproduce work on Appendix: Testing MCP Integrations.
  • Report results for integration, MCP integration, mcp integrations by relevant slice, separate blocker failures from averages, state uncertainty and blind spots, and connect the result to a release decision.

Expert note

MCP testing combines API contract tests, authorization tests, prompt-injection tests, trace validation, schema fuzzing, tool-selection evals, and production monitoring. The MCP layer should be boring, observable, and constrained.

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Jason Arbon. "Appendix: Testing MCP Integrations." Testing AI Knowledge Edition, section 189.

https://jarbon.ai/testing-ai/knowledge/ch189-mcp-integrations.html

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