Shell commands can hang on Windows after process exit

[ahasasjeb]

Description

On Windows, shell command execution can occasionally hang even after the command process has exited. When this happens, OpenCode keeps waiting and does not return the command result back to the model

Plugins

No response

OpenCode version

1.15.12

Steps to reproduce

Completely randomly, executing any command, whether simple or complex, may lead to the occurrence of this issue

Screenshot and/or share link

Operating System

Windows 11

Terminal

Windows Terminal

[github-actions]

This issue doesn't fully meet our contributing guidelines.

What needs to be fixed:

• The Operating System field is empty (_No response_) — this is particularly important for a Windows-specific bug report. Please specify your exact Windows version (e.g., Windows 11 24H2).
• The Terminal field is also empty — please specify which terminal you are using (e.g., Windows Terminal, PowerShell, cmd).
• Steps to reproduce is listed as "Completely random" — please try to provide any additional context that might help narrow down when this occurs (e.g., specific command types, shell configuration, project size).

Please edit this issue to address the above within 2 hours, or it will be automatically closed.

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

• Bug: bash tool hangs on Windows when grandchild process inherits stdout pipe #24784: Bash tool hangs on Windows when grandchild process inherits stdout pipe — describes the same symptom with a specific root cause analysis (grandchild processes keeping pipe handles open)
• Bash tool hangs on Windows when command spawns detached child processes (e.g. playwright-cli) #24731: Bash tool hangs on Windows when command spawns detached child processes — same hang behavior on Windows with detached child processes
• Windows: terminal tool stays in thinking state after dotnet build completes successfully #24926: Windows terminal tool stays in thinking state after dotnet build completes successfully — same symptom on Windows after process exit
• bash tool hangs when command spawns background child processes #20902: bash tool hangs when command spawns background child processes — related hanging behavior with background processes

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

Thanks for updating the issue! It now meets the contributing guidelines and has been marked as compliant.