The Seven Deadly Sins of MCP: Operational Sins
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MCP's operational sins, Sloth and Wrath, cause systems to fail obscurely or amplify failures under stress. Combat Sloth by implementing structured ToolError classes with codes like 'invalid_input' and 'not_found', enforcing stdio hygiene (log to stderr), and surfacing precise error contracts via functions like toMcpErrorResult. This ensures truthful failure reporting and sane recovery in live model-facing interfaces.
Define explicit error contracts with machine-readable codes and retry hints at every MCP tool boundary.
You orchestrate AI agents using protocols like MCP; poor error handling and transport hygiene directly undermine system reliability, debugging efficiency, and the robustness of multi-agent workflows you design.