can ssh-agent produce any debug logs?

[pakud]

Summary of the new feature / enhancement

I'm experimenting with putty + wihssh-pageant + openssh's ssh-agent + FIDO2 key and i experience frequent hangs and failures of putty to authenticate, as described in ndbeals/winssh-pageant#32

when this happens openssh's ssh is also unable to use the running agent:

but once i kill putty - it can use it fine again.

i'm wondering if it's possible to enable debug mode / verbose logging for the openssh's ssh-agent with binaries from this project, running under MS Windows 11.

thanks in advance for your suggestions!

Windows 11, x64
Openssh v9.2.2.0p1-Beta 64 bit

Proposed technical implementation details (optional)

enabling, documenting -D, -d options in the windows built as available under linux version of openssh's ssh-agent