This repository is a community-driven research project that maintains structured telemetry coverage matrices for major EDR (Endpoint Detection and Response) products across Windows, Linux, and macOS. It currently tracks 25+ vendors with approximately 100 telemetry sub-categories mapped to MITRE ATT&CK data sources. The primary data artifacts are three JSON files (EDR_telem_windows.json, EDR_telem_linux.json, EDR_telem_macOS.json) that are manually curated through pull requests, each with evidence requirements. The project provides a scoring system that computes weighted vendor scores based on coverage, an automated statistics pipeline that generates historical change events, vendor score timeseries, and contributor summaries, and platform-specific telemetry generators that produce test events for validation purposes. While the core asset is the curated dataset, the repository also contains reusable software components including a modular scoring model, a diff engine for snapshot comparison, and a PR evidence classifier. The project has a substantial community with nearly 2000 stars, active issue triage, and continuous updates through GitHub Actions workflows that regenerate statistics and synchronize data to a Supabase database.