How to preprocess filament name for autonaming print files?

[dewi-ny-je]

I am uploading prints directly to my Klipper printer and the standard name is "project name_material_time.gcode".

Can I modify it to add filament name? even better, filament name before the "@", so "filament@printer name layer height" would become just "project name_material_filament_time.gcode"

[dewi-ny-je]

Ok I found
https://github.com/SoftFever/OrcaSlicer/wiki/others_settings_g_code_output#filename-format
linking to
https://github.com/SoftFever/OrcaSlicer/wiki/built-in-placeholders-variables

Right now I have

{input_filename_base}_{filament_type[0]}_{print_time}.gcode

Using

{input_filename_base}_{filament_type[0]}_{filament_preset[0]}_{print_time}.gcode

I get what I wanted, except for the @...:

Cube_ABS_ABS Amazon Basics @Qidi Q1 Pro 0.4 nozzle 17mm3s_11m52s.gcode

I want to cut away the text starting from @ in the filament name portion.