[Bug]: Not valid zip file

Author: osilovaCreated Jun 30, 2026Updated Sep 10, 2026
Labelsbug

Operating System

Windows

Python Version

No response

Command That Failed

File upload to Anthropic

Full Error Output

bash
Unable to add the skill. When trying to add in Anthropic admin settings as a zip file from Github repo, Anthropic says that it is not a valid zip file - zip file contains path with invalid characters. Tested on multiple devices, different browsers and OS. Please see if there's an issue with the archive. Thanks!

Ad Platform and Account Context

No response

Expected Behavior

No response