Equation 22 · Part 1 · Why Coding Agents Fail: Long-Horizon Reliability in OpenAI Codex
Symbol Z
What this part means
Z is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
Z is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol Z→Article meaning
The passage around this formula
The product formula is most misleading when failures share a cause. Let Z represent a latent condition such as an ambiguous requirement, poisoned dependency, missing platform constraint, or flawed test oracle. Conditional on Z , stages or parallel agents may appear independent; marginally, their errors are correlated:
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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