Vibe Meter 2.0: Calculating Claude Code Usage with Token Counting
Read OriginalThe article details the development of Vibe Meter 2.0, a tool created to monitor usage of the Claude Code subscription. Since no official API exists, the author built a solution that parses large JSON-L log files and implements a custom, high-performance token counter using SIMD-accelerated Byte Pair Encoding (BPE). The project, written in Swift with high test coverage, explores technical challenges like file parsing, performance optimization with SIMD operations, and approximating costs and usage limits for the AI coding assistant.
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