Engineers Report Painful Failure Modes as AI Agents Hit Production: Loops, Hallucinations, and Surprise Bills

Developers shipping AI agents to production are encountering a consistent pattern of failures — infinite loops, confident hallucinations, and runaway API costs — that suggest the tooling has outpaced the guardrails.

As the coding agent market heats up, a quieter conversation is happening among the engineers actually deploying these tools in production. @Tidianez reported spending a week talking to engineers shipping AI agents and documented a recurring set of failures: agents getting stuck in loops, generating confident but wrong outputs that required costly refunds, and accumulating API costs far beyond projections.

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