Unable to install skills for Gemini

[kumarldh]

I followed instructions mentioned in readme file and tried installing skills for Gemini, however it failed. Here is the output

[my-mbp] $ gemini skills install https://github.com/callstackincubator/agent-skills.git
(node:12685) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
Loaded cached credentials.
Cloning skill from https://github.com/callstackincubator/agent-skills.git...
Searching for skills in /var/folders/cd/gcrq2_3x0n5_wx_17zy4ssvm0000gn/T/gemini-skill-IxPlbq...
No valid skills found in https://github.com/callstackincubator/agent-skills.git. Ensure a SKILL.md file exists with valid frontmatter.