Our code silently replaced our own $50 daily loss limit with $142

说明与用途

代码将硬性每日亏损限额$50悄悄替换为更宽松的$142限额，导致每日亏损高达$100。修复后，系统将执行更严格的限额。

问题

A hard daily loss limit of $50 was silently overridden by a looser automatic cap of ~$142, allowing losses up to $100 without triggering the guard.

结果

The bug allowed daily losses up to $100.26 over 42 trading days, with the $50 limit never firing. After fixing, the stricter cap rule now prevents such losses.

工作流

• Read risk rule file at startup
• Compute automatic cap as 1.5% of balance each tick
• Unconditionally overwrite config cap with automatic cap
• Stop trading when cap reached

证据

we set a hard daily loss limit of $50. For at least the 42 trading days we can measure, the number actually running was about $142.

来源

Every tick, the bot computes a day cap from the account balance: 1.5% of the balance, which on a roughly $9,500 account is about $142. Then it assigned that value to the variable that holds the cap.

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That assignment was unconditional. It did not compare the two numbers. It did not ask which one was stricter. It just wrote over whatever was there — including the $50 that our own rule file had just supplied.

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The change is two lines long and the principle is one sentence: when a rule and a default disagree, take the stricter one.

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Five days below a limit that was supposedly live is not a subtle discrepancy. It is a contradiction, and it had been sitting in our own data the whole time.

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