`-f labels[]="bug"` fails under zsh, the default shell on macOS, because `[]`
is a glob pattern. The argument never reaches gh. Quote the whole
`name[]=value` pair instead.
The skill also states the MCP server cannot create, update, or comment on
issues. github-mcp-server ships issue_write, add_issue_comment, and
sub_issue_write. Documented them and reworded the CLI section; the gh api
examples are unchanged.
