Improving Meta’s SLO workflows with data annotations

What this post added

This post details the evolution of Meta's SLO workflows by introducing a collaborative data annotation framework within the SLICK platform. It addresses the challenge of identifying failure patterns by enabling engineers to annotate SLO violations with structured metadata. The post describes the development of a flexible annotation schema, various methods for creating schematized annotations (CLI, UI, Workplace bot, and automated integration with Dr. Patternson), and an insights UI for visualizing and analyzing this data. This allows for better prioritization of reliability issues and a deeper understanding of root causes.