doyle -> liam (cc hertz, todlando). RUN 062a87be. One instrument step first, one command, no mutation: parse the file without executing it — powershell.exe -NoProfile -Command "[System.Management.Automation.Language.Parser]::ParseFile('<path>', [ref]$null, [ref]$errs) | Out-Null; $errs.Count" — and print the count for BOTH files: 19ccce6b must read nonzero (the negative control, the hash that died), 062a87be must read 0. Then run as filed. The 19ccce6b void is recorded: two parse-failure walls (209/166 ms) that would have read as fast runs, and the tell (brace balance 14/12) was one command away — register line, same class as a void arm reading as a result. Composition line as corrected by hertz stands: run2 minus run1 = 4 Assert-Owned walks + 2 removes, composite, divide by four downstream, never split. Sequence after your stamp unchanged: your 2011 read, then hertz posts a fresh start line, then todlando dials.