powershell VSCODE integrated formatter breaks certain linux commands on save by default

[NickVH-MS]

Prerequisites

• I have written a descriptive issue title.
• I have searched all open and closed issues to ensure it has not already been reported.
• I have read the troubleshooting guide.
• I am sure this issue is with the extension itself and does not reproduce in a standalone PowerShell instance.
• I have verified that I am using the latest version of Visual Studio Code and the PowerShell extension.
• If this is a security issue, I have read the security issue reporting guidance.

Summary

we made major changes to a .ps1 file. All was well until save and the powershell extension's formatter saw:

mount / -o remount,rw

And changed it to

mount / -o remount, rw

Which of course DESTROYS THE ENTIRE PIPELINE. We lost days of time investigating this ridiculous issue.
Please do not auto-format such commands, ever!

PowerShell Version

PS /home/nverhoe/fd> $PSVersionTable; $Host          

Name                           Value
----                           -----
PSVersion                      7.5.1
PSEdition                      Core
GitCommitId                    7.5.1
OS                             Ubuntu 22.04.5 LTS
Platform                       Unix
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Name             : ConsoleHost
Version          : 7.5.1
InstanceId       : 940da084-2fa0-4144-bb67-1f8bdd981c26
UI               : System.Management.Automation.Internal.Host.InternalHostUserInterface
CurrentCulture   : 
CurrentUICulture : 
PrivateData      : Microsoft.PowerShell.ConsoleHost+ConsoleColorProxy
DebuggerEnabled  : True
IsRunspacePushed : False
Runspace         : System.Management.Automation.Runspaces.LocalRunspace


PS /home/nverhoe/fd>

Visual Studio Code Version

PS /home/nverhoe/fd> code --version
1.100.2
848b80aeb52026648a8ff9f7c45a9b0a80641e2e
x64

Extension Version

PS /home/nverhoe/fd> code --list-extensions --show-versions | Select-String powershell

ms-vscode.powershell@2025.0.0

Steps to Reproduce

Install Vscode powershell extension.
Within vscode, create a .ps1 file containing:

mount / -o remount,rw

Save.

Line changes and breaks

Visuals

No response

Logs

No response

[JustinGrote]

Thanks for your submission!

Sorry for the frustration that caused you.

Does this happen when you run Invoke-ScriptAnalyzer on the same script? If so, then your issue needs to be filed in https://github.com/PowerShell/PSScriptAnalyzer, as the vscode extension basically just runs that and applies its recommendations.