AI Search service nothing queries
An Azure AI Search service with no queries at all over the window, billing its provisioned search units in full.
Why it happens
An AI Search service bills a fixed hourly rate per search unit, where a unit is replicas multiplied by partitions, and that rate is charged whether or not a query is ever run: a Standard S1 at three replicas and two partitions is six units and about $1,470 a month. Sustained zero queries means nothing is using the index while it charges in full. The rule fires only on zero rather than on low traffic, because the query metric publishes an average and an average cannot rule out a burst, and a bursty service genuinely needs its replicas. Scaling replicas and partitions down is reversible and loses nothing, but a service cannot go below one replica and one partition, so the saving reported here is only the units above that floor. The last unit keeps billing until the service is deleted, which destroys the index, so it is reported separately rather than counted as a saving.
What the agent does about it
An Azure AI Search service with no queries at all over the window, billing its provisioned search units in full.
It will not fix this one
It reports this and takes no action. A check only earns the right to change something once the action behind it can re-read live state before it fires and knows the way back.
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