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Equation 5 · Part 2 · Ten Failure Modes in Agentic Coding, from Prompt Injection to False Completion

subscript

pep_e
subscript

What this part means

The lower label selects a particular version, component, or indexed member of the quantity. For example, x₀ and xₜ can be values at different positions.

Its job in the formula

A subscript distinguishes a version, component, step, or member of a quantity. It does not automatically mean multiplication.

The passage around this formula

An attack path is a sequence of capabilities. If graph edge e has exploitation probability pep_e and consequence multiplier lel_e , prioritization cannot use pep_e alone. A low-probability path to release signing can dominate frequent harmless prompt deviations. Remove edges before trying to make the model refuse them.

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Learn the underlying idea

A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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