Trying to add an AHP host via SSH never completes.

从 github_app::remote_host::ssh::install 入口点开始，使用记录的 ssh.exe 命令和 PowerShell 7 重现 Windows-to-Windows 设置。跟踪通过标准输入发送的归档是否已关闭，然后验证添加 AHP 主机时不会出现卡住的 ssh.exe 进程或一直显示加载指示器的情况。

Trying to add an AHP host via SSH never completes. Windows on both client and server.

The last thing I see in the log is "github_app::remote_host::ssh::install: compatible copilotd not found; installing pinned version destination="meron-1" version="0.7.3"" and after that nothing happens. Some blank ssh.exe windows pop open and close over a few seconds until one finally stays open forever. Nothing else ever happens to complete adding the AHP host, it just keeps spinning the loading spinner and the ssh.exe window remains open.

Regular "ssh meron-1" works fine. Remote shell is powershell 7, in case it matters.

The ssh.exe that remains open seemingly forever has the following command line:

"C:\WINDOWS\System32\OpenSSH\ssh.exe" -o BatchMode=yes -o ConnectTimeout=10 -o ControlMaster=no -o ControlPath=none -- meron-1 "powershell -NoProfile -NonInteractive -EncodedCommand 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"

Decoded, that blob seems to be: $ErrorActionPreference='Stop'; $root=Join-Path $HOME '.copilotd\bin'; $zip=Join-Path $env:TEMP ('copilotd-'+[guid]::NewGuid()+'.zip'); $tmp=Join-Path $env:TEMP ('copilotd-'+[guid]::NewGuid()); try { $input=[Console]::OpenStandardInput(); $file=[IO.File]::Create($zip); $input.CopyTo($file); $file.Dispose(); New-Item -ItemType Directory -Force $tmp,$root | Out-Null; Expand-Archive -LiteralPath $zip -DestinationPath $tmp -Force; $exe=Get-ChildItem $tmp -Filter copilotd.exe -Recurse | Select-Object -First 1; if (-not $exe) { throw 'release archive did not contain copilotd.exe' }; $staged=Join-Path $root 'copilotd.exe.new'; Copy-Item $exe.FullName $staged -Force; Move-Item $staged (Join-Path $root 'copilotd.exe') -Force } finally { Remove-Item $zip,$tmp -Recurse -Force -ErrorAction SilentlyContinue }

So it reads the zip file from stdin. Presumably the failure for anything to happen is a side-effect of the stdin never closing. I wonder if this may be related to the SSH shell being PowerShell 7 instead of something more oldschool like cmd.exe? (Disproven)