ProbeLab Gauge for FOC and Retrieval Testing will deliver production-grade measurement tooling and public dashboards to quantify Filecoin retrieval reliability and the performance of Filecoin Onchain Cloud. By continuously tracking retrievability success rates and key network and fetch metrics (e.g., latency, throughput, uptime, and error rates) across diverse vantage points, the project provides actionable observability for engineers, storage providers, and builders. These metrics enable data-driven optimizations and support credible SLA definition, strengthening trust and adoption across the Filecoin ecosystem.