How to debug MCP tool call failures and cascading errors in production?
Prod_whiz · reddit · 2026-08-26
Discusses debugging Agent workflows with multiple MCP tools when unexpected calls or cascading failures occur. Key questions raised:
- Observability: Can you identify which tool was called, its inputs/outputs, and diagnosis time?
- Side Effects: Have you seen a tool's bad output cause unexpected agent behavior? How was it caught?
- Control: Do you have visibility into call sequences and error rates per tool? Is an "undo and re-route" capability needed?
Aims to understand best practices for maintaining MCP tool reliability at scale.
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