LLD: vfs.fs.discovery is implemented:

int	VFS_FS_DISCOVERY(AGENT_REQUEST *request, AGENT_RESULT *result)

It would be great to have perf_counter[\number(*)] have implemented:

item prototype:  perf_counter[\number({#DEV_NAME})\number] 

This would mean that you can have pre-defined templates for almost everything there is in windows...
this without any client sided adjusting of the agent config file.