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Equation 3 · Part 1 · Ten Failure Modes That Define Production Tool-Protocol Integrations

Symbol i

ii
ii

What this part means

the fraction of those calls actually covered by a working.

Its job in the formula

i is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Where the article explains it

Let n be the number of side-effecting tool calls in a session, p the probability that any one call’s response is lost after the server has already executed it, and i the fraction of those calls actually covered by a working, executor-enforced idempotency key.

The passage around this formula

The shape of the exposure is simple enough to write down. Let n be the number of side-effecting tool calls in a session, p the probability that any one call’s response is lost after the server has already executed it, and i the fraction of those calls actually covered by a working, executor-enforced idempotency key. Then the expected count of uncontrolled duplicate side effects across the session is approximately

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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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Sources cited in the article section

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