Auto Fishing Stool is a small Dalamud plugin that uses /sit once after the player enters fishing mode. It waits for fishing to remain active and for any fishing action to finish before sitting.

Build

From this directory, run:

dotnet build

The development DLL is produced at bin/Debug/AutoFishingStool.dll.

Load in Dalamud

Start Final Fantasy XIV through XIVLauncher with Dalamud enabled.
Run /xlsettings and open the Experimental tab.
Select bin/Debug/AutoFishingStool.dll under Dev Plugin Locations.
Run /xlplugins and open Dev Tools, then Installed Dev Plugins.
Enable Auto Fishing Stool.

The development plugin location only needs to be added once. Rebuild the plugin and reload it from the installed development plugins screen after future changes.