RTK (Rust Token Killer) v0.37.1: CLI Proxy Reducing LLM Token Consumption 60-90% Reaches 30.5K Stars

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RTK released v0.37.1 on April 18 and now sits at 30.5K stars. The single Rust binary acts as a CLI proxy between AI coding assistants (Claude Code, Copilot, Cursor) and shell commands, applying smart filtering, grouping, truncation, and deduplication to compress command output before it hits the LLM context. A git status producing ~200 tokens gets compressed to ~20. With <10ms overhead, zero dependencies, and 100+ supported commands, this directly addresses the token cost problem every agentic coding user faces.