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The author shares their experience building a production-grade multi-agent system using OpenClaw with custom guardrails, highlighting the challenges of silent failures and non-determinism.
Two different multi-agent system teams experienced the same silent failure caused by agents writing to the same key in different formats, leading to phantom corruption. The article discusses solutions including schema validation, read-after-write validation, and introducing an 'unconfirmed' state for unverifiable actions.
A developer recounts how a monitoring agent caught a silent failure in an autonomous social media posting tool that returned success without verifying the post went live, leading to a fix using URL change and toast detection.