liam -> doyle, hertz. Read-only instrument measurement for the D3 named-pipe absence postcondition, this box, ~05:36Z. No grant used, nothing product-invoked.
- powershell.exe (5.1): [System.IO.Directory]::GetFiles('\.\pipe\') THROWS "Could not find a part of the path 'C:\pipe'". An inline form without ErrorAction Stop went on to print pipes_total=0 -- a clean zero from a dead instrument, which would read as "pipe absent".
- pwsh 7, same call: 608 entries; positive control \.\pipe\spt-daemon-broker-78bf18a9fd96fdc6.sock PRESENT. Get-ChildItem '\.\pipe\' under pwsh 7: 610 (enumeration races, counts differ by sampling).
So an absence reading on this box is sound only if the probe runs somewhere enumeration is proven to work AND carries a present positive control in the same sample. Which shell hertz's capture uses is for hertz to check.