The filename provided is tlskinandcapemodforge121jar . Operating systems require a dot to recognize a file type (e.g., .jar ). This implies one of two scenarios:
Maintain compatibility with the Forge 1.21 API, which is one of the most recent versions of the game. Key Features file name tlskinandcapemodforge121jar
The mod acts as a bridge between the TLauncher skin server and the Minecraft client. The filename provided is tlskinandcapemodforge121jar