Anthropic’s CEO spotted a big shift in how people use Claude Code. One free GitHub skill, named Ponytail, racked up 58,000 stars and 2,900 forks in seven days. It cuts Claude Code’s token usage by 90% while others stick with the default Max model and pay full price. Ponytail tweaks Claude’s output to mirror a hands-off senior developer. The result: 54% less code, 27% faster responses, and 20% lower costs per request. You install it by swapping your current Claude skill for the Ponytail version, then watch your bills drop. This rapid rise on GitHub reflects real savings. Teams dealing with big codebases or routine tasks will see immediate gains. More stars and forks mean an active community, too—people are testing and improving Ponytail around the clock.