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Crash Report: Bash syntax (=) leaking into PowerShell execution causes CommandNotFoundException #11330

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Crash Report: Bash syntax (=) leaking into PowerShell execution causes CommandNotFoundException#11330
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rekram1-node
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windows

Description

@DaveW001
DaveW001
opened on Jan 30, 2026

GitHub Issue Draft: PowerShell Syntax Crash

Title

Crash Report: Bash syntax (=) leaking into PowerShell execution causes CommandNotFoundException

Body

Description

The OpenCode agent crashed while attempting to execute a command in a Windows environment using the default shell (PowerShell). The error indicates that a Bash-style variable assignment or command syntax containing = was passed directly to PowerShell, which interpreted = as a command name or argument it couldn't handle in that context.

Error Log

+ FullyQualifiedErrorId : CommandNotFoundException

= : The term '=' is not recognized as the name of a cmdlet, function, script file, or operable
program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try
again.

Environment

  • Platform: Windows (win32)
  • Shell: PowerShell (implied by error format)
  • Agent: 01-Planner (likely executing a Bash tool call)
  • Date: 2026-01-30

Reproduction Context

The agent was likely attempting to run a command that works in Bash but fails in PowerShell.
Possible triggers:

  1. Variable assignment: VAR=value command (Common in Bash, invalid in PowerShell)
  2. Command chaining with specific syntax.
  3. Attempting to use > or 2> redirection which resulted in the creation of a literal file named nul in the working directory (observed in file system artifacts).

Artifacts Observed

  • A file named nul was created in the root directory C:\development\marketing\. In Windows cmd/PowerShell, > /dev/null or incorrect redirection handling can sometimes result in writing to a file named nul if the driver isn't handled correctly or if it's quoted as a string.

Expected Behavior

The system should either:

  1. Detect the Windows environment and use cmd or powershell compatible syntax.
  2. Wrap Bash commands in wsl or bash.exe if a true Bash environment is expected.
  3. Sanitize inputs to prevent shell-specific syntax collisions.

Suggested Fix

Review the command execution layer in opencode-windows-x64. Ensure that when the Bash tool is called on Windows:

  • It actually routes to a bash.exe instance (Git Bash or WSL).
  • OR, if it falls back to PowerShell, it validates that the command syntax is compatible.

Activity

  1. github-actions
    assigned
    rekram1-node
    on Jan 30, 2026
  2. github-actions
    added
    windows
    on Jan 30, 2026

  3. github-actions commented on Jan 30, 2026

    @github-actions
    github-actionsBot
    on Jan 30, 2026 – with GitHub Actions
    Contributor

    This issue might be a duplicate of existing issues. Please check:

    Feel free to ignore if none of these address your specific case.

  4. DaveW001 commented on Jan 30, 2026

    @DaveW001
    DaveW001
    on Jan 30, 2026
    Author

    Closing as duplicate of #11288. The underlying issue is Bash syntax ( or declare -x AGENT="1"
    declare -x ALLUSERSPROFILE="C:\ProgramData"
    declare -x ANTIGRAVITY_CLI_ALIAS="agy"
    declare -x APPDATA="C:\Users\DaveWitkin\AppData\Roaming"
    declare -x BUNDLED_DEBUGPY_PATH="c:\Users\DaveWitkin\.antigravity\extensions\ms-python.debugpy-2025.18.0-win32-x64\bundled\libs\debugpy"
    declare -x CHROME_CRASHPAD_PIPE_NAME="\\.\pipe\crashpad_185720_GDUZSRXPWYZUIVPV"
    declare -x COLORTERM="truecolor"
    declare -x COMMONPROGRAMFILES="C:\Program Files\Common Files"
    declare -x COMPUTERNAME="DWITKIN2025"
    declare -x COMSPEC="C:\Windows\system32\cmd.exe"
    declare -x ChocolateyInstall="C:\ProgramData\chocolatey"
    declare -x ChocolateyLastPathUpdate="134111735990034308"
    declare -x CommonProgramW6432="C:\Program Files\Common Files"
    declare -x DriverData="C:\Windows\System32\Drivers\DriverData"
    declare -x EFC_12832_1592913036="1"
    declare -x EXEPATH="C:\Program Files\Git\bin"
    declare -x GEMINI_CLI_IDE_AUTH_TOKEN="7d1da24e-b329-419e-a3f4-7bcb88bbbde0"
    declare -x GEMINI_CLI_IDE_SERVER_PORT="55774"
    declare -x GEMINI_CLI_IDE_WORKSPACE_PATH="c:\development\marketing"
    declare -x GIT_ASKPASS="c:\Users\DaveWitkin\AppData\Local\Programs\Antigravity\resources\app\extensions\git\dist\askpass.sh"
    declare -x HOME="/c/Users/DaveWitkin"
    declare -x HOMEDRIVE="C:"
    declare -x HOMEPATH="\Users\DaveWitkin"
    declare -x JAVA_HOME="C:\Program Files\Eclipse Adoptium\jdk-21.0.9.10-hotspot\"
    declare -x LANG="en_US.UTF-8"
    declare -x LOCALAPPDATA="C:\Users\DaveWitkin\AppData\Local"
    declare -x LOGONSERVER="\\DWITKIN2025"
    declare -x MOZ_PLUGIN_PATH="C:\Program Files (x86)\Foxit Software\Foxit PDF Editor\plugins\"
    declare -x MSYSTEM="MINGW64"
    declare -x NUMBER_OF_PROCESSORS="22"
    declare -x OLDPWD
    declare -x OPENCODE="1"
    declare -x ORIGINAL_XDG_CURRENT_DESKTOP="undefined"
    declare -x OS="Windows_NT"
    declare -x OneDrive="C:\Users\DaveWitkin\OneDrive - Packaged Agile"
    declare -x OneDriveCommercial="C:\Users\DaveWitkin\OneDrive - Packaged Agile"
    declare -x PATH="/mingw64/bin:/usr/bin:/c/Users/DaveWitkin/bin:/c/Users/DaveWitkin/AppData/Local/Programs/Python/Python313:/c/Users/DaveWitkin/AppData/Local/Programs/Python/Python313/Scripts:/c/Program Files/PowerShell/7:/c/Program Files/Eclipse Adoptium/jdk-21.0.9.10-hotspot/bin:/c/Program Files/Eclipse Adoptium/jdk-17.0.17.10-hotspot/bin:/c/Windows/system32:/c/Windows:/c/Windows/System32/Wbem:/c/Windows/System32/WindowsPowerShell/v1.0:/c/Windows/System32/OpenSSH:/c/Program Files/dotnet:/c/Windows_PCTrans/System32:/c/Windows_PCTrans/SysWOW64:/c/Program Files/nodejs:/cmd:/c/Program Files/gsudo/Current:/c/Program Files/Warp/bin:/c/Program Files (x86)/AOMEI/AOMEI Backupper/8.0.0:/c/Program Files/GitHub CLI:/c/Users/DaveWitkin/.cargo/bin:/c/Users/DaveWitkin/AppData/Local/Microsoft/WindowsApps:/c/Users/DaveWitkin/AppData/Roaming/npm:/c/Users/DaveWitkin/AppData/Local/Microsoft/WinGet/Packages/BurntSushi.ripgrep.MSVC_Microsoft.Winget.Source_8wekyb3d8bbwe/ripgrep-15.1.0-x86_64-pc-windows-msvc:/c/Users/DaveWitkin/AppData/Local/Microsoft/WinGet/Packages/OpenAI.Codex_Microsoft.Winget.Source_8wekyb3d8bbwe:/c/Users/DaveWitkin/AppData/Local/Microsoft/WinGet/Packages/Oven-sh.Bun_Microsoft.Winget.Source_8wekyb3d8bbwe/bun-windows-x64:/c/Users/DaveWitkin/.bun/bin:/c/Users/DaveWitkin/AppData/Local/Programs/Antigravity/bin:/c/Program Files/GitHub CLI:/c/Users/DaveWitkin/AppData/Local/Programs/Microsoft VS Code/bin:/c/Users/DaveWitkin/.antigravity/extensions/ms-python.debugpy-2025.18.0-win32-x64/bundled/scripts/noConfigScripts:/c/Users/DaveWitkin/.gemini/extensions/splitrail/target/release"
    declare -x PATHEXT=".COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.CPL"
    declare -x PLINK_PROTOCOL="ssh"
    declare -x PROCESSOR_ARCHITECTURE="AMD64"
    declare -x PROCESSOR_IDENTIFIER="Intel64 Family 6 Model 170 Stepping 4, GenuineIntel"
    declare -x PROCESSOR_LEVEL="6"
    declare -x PROCESSOR_REVISION="aa04"
    declare -x PROGRAMFILES="C:\Program Files"
    declare -x PROMPT="$P$G"
    declare -x PSModulePath="C:\Users\DaveWitkin\OneDrive - Packaged Agile\Documents\PowerShell\Modules;C:\Program Files\PowerShell\Modules;c:\program files\powershell\7\Modules;C:\Program Files\WindowsPowerShell\Modules;C:\Windows\system32\WindowsPowerShell\v1.0\Modules"
    declare -x PUBLIC="C:\Users\Public"
    declare -x PWD="/c/development/marketing"
    declare -x PYDEVD_DISABLE_FILE_VALIDATION="1"
    declare -x PYTHONSTARTUP="c:\Users\DaveWitkin\AppData\Roaming\Antigravity\User\workspaceStorage\90b6e692e9097100af88322ca6cce8b3\ms-python.python\pythonrc.py"
    declare -x PYTHON_BASIC_REPL="1"
    declare -x ProgramData="C:\ProgramData"
    declare -x ProgramW6432="C:\Program Files"
    declare -x SESSIONNAME="Console"
    declare -x SHLVL="1"
    declare -x SYSTEMDRIVE="C:"
    declare -x SYSTEMROOT="C:\Windows"
    declare -x TEMP="/tmp"
    declare -x TERM="xterm-256color"
    declare -x TERM_PROGRAM="vscode"
    declare -x TERM_PROGRAM_VERSION="1.104.0"
    declare -x TMP="/tmp"
    declare -x USERDOMAIN="AzureAD"
    declare -x USERDOMAIN_ROAMINGPROFILE="AzureAD"
    declare -x USERNAME="DaveWitkin"
    declare -x USERPROFILE="C:\Users\DaveWitkin"
    declare -x VSCODE_DEBUGPY_ADAPTER_ENDPOINTS="c:\Users\DaveWitkin\.antigravity\extensions\ms-python.debugpy-2025.18.0-win32-x64\.noConfigDebugAdapterEndpoints\endpoint-aed848e00a783f5e.txt"
    declare -x VSCODE_GIT_ASKPASS_EXTRA_ARGS=""
    declare -x VSCODE_GIT_ASKPASS_MAIN="c:\Users\DaveWitkin\AppData\Local\Programs\Antigravity\resources\app\extensions\git\dist\askpass-main.js"
    declare -x VSCODE_GIT_ASKPASS_NODE="C:\Users\DaveWitkin\AppData\Local\Programs\Antigravity\Antigravity.exe"
    declare -x VSCODE_GIT_IPC_HANDLE="\\.\pipe\vscode-git-b24394abf1-sock"
    declare -x VSCODE_INJECTION="1"
    declare -x VSCODE_PYTHON_AUTOACTIVATE_GUARD="1"
    declare -x WINDIR="C:\Windows"
    declare -x ZES_ENABLE_SYSMAN="1") leaking into the Windows native shell (PowerShell/CMD) because the Bash tool failed to locate/use a valid bash executable (likely related to #10871).

  5. DaveW001
    closed this as completedon Jan 30, 2026
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