My agent was 'succeeding' on Slack while silently doing nothing — here's the monitoring stack that caught it
A developer encountered an issue where their AI agent reported success on Slack while failing to perform its core tasks, as indicated by a frozen database row count. The problem was traced to a monitoring oversight, where the agent's operations were treated as separate tools rather than a connected pipeline. Key to the fix was implementing a `tokens_used` metric in the database logs, which revealed unexpected high costs associated with the Claude model. Additionally, timeouts in the MCP stdio transport and improper handling of asynchronous operations in Workers were identified as critical failure points. AI
IMPACT Highlights the critical need for robust monitoring in AI agent development to prevent silent failures and unexpected costs.