I built an open-source Claude usage meter that shows the 5-hour and 7-day windows inside the composer

An open-source extension called Claude Pulse has been developed to help users track their Claude AI usage. It displays 5-hour and 7-day usage windows directly within the Claude composer, along with a token estimate and cache countdown. The tool operates entirely locally, requires no account, and has already garnered over 1,000 users. It is available on GitHub under an MIT license and through the Chrome Web Store.