r/ClaudeAI: The Second Sweep Finds Different Things — Developers Identify Agent Coverage Failure Misdiagnosed as Reliability Failure When No State Is Tracked

A developer post in r/ClaudeAI argues that agents performing repeated passes over a codebase or document set degrade in quality not because the model is unreliable but because agents maintain no representation of what they have already covered, producing a coverage failure that looks like a reliability failure. The post describes how second-run sweeps find different items rather than missing the same ones, and proposes external state tracking as the architectural fix. The observation is drawing discussion about how agent harnesses should explicitly model and persist coverage state across runs.