Crypto trading bot silently recycled stale price data for over an hour undetected

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A solo developer's AI-managed crypto trading bot repeatedly fetched the same outdated price data for over an hour due to a missing parameter in its broker API call. Without an explicit start time, the API returned a fixed daily window instead of the most recent price bars, yet never raised an error or altered the response format. The bot continued logging fresh timestamps and decisions every five minutes, making its activity log appear entirely normal. The issue was only discovered when the developer noticed price values were identical to three decimal places across consecutive log entries during an unrelated review. The incident highlights a critical blind spot in process monitoring: confirming that output is arriving on schedule is not the same as confirming that the underlying work is meaningfully changing.

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