Treated "couldn't measure" the same as "failed"

Data cleanup

Situation: Listing check results with pass/fail marks. Some items couldn't be measured because the conditions weren't met.
What the AI did: It gave the items it couldn't measure the same mark as "failed." The next person to read the list took it to mean those items had a problem.
How to ask next time (the operator's example): "Split results into three: 'pass,' 'fail,' and 'couldn't measure,' and give the reason for each one that couldn't be measured."
One question to ask: Do the results have a "couldn't measure" category?
Check it yourself: For each item marked "failed," ask for the measured value behind it. An item with no value was not measured, and belongs in its own column.
AI used (month): Claude Code (2026-09)
Times this mistake was recorded: once
Source: The operator's work records (the details were changed to a different task)