Emergency maintenance for Uma Musume and Granblue Fantasy due to PHP vulnerability. What is PHP? Why shutting it down is a form of protection

On the night of October 21, 2026, the words "emergency maintenance" appeared all over the Japanese internet. Uma Musume, ...

Even though I wrote it in CLAUDE.md, it's not being followed—I measured which formats cause @import and rules with paths to fail, based solely on official docume…

I specified a style guide in CLAUDE.md using @import and wrote paths in the rule file. Yet, the model does not follow those ...