hw-smi is a minimal C++ tool for CPU/GPU telemetry that bypasses OS layers to read metrics directly from vendor APIs. It documents real-world vendor API fragmentation and runs lightweight ASCII terminal UIs.
CC Gateway is a TypeScript reverse proxy for Claude Code that normalizes telemetry and device identity, strips billing headers to reduce system prompt costs by ~85%, and manages OAuth tokens centrally.
Sampler is a Go CLI tool for terminal telemetry, visualizing server metrics via sparklines from various data sources. Easy to install, minimal dependencies, extensible.