What problem does it solve? Managing custom metrics and long-term data retention for Real User Monitoring requires navigating Datadog's RUM Metrics and Retention Filters APIs, which involves complex query syntax, aggregation rules, and sampling configuration that is error-prone when done manually. ## Core Features & Use Cases - RUM Metrics Management: List, create, update, and delete custom metrics from RUM events with count or distribution aggregations, filters, group-by tags, and percentile support. - Retention Filter Control: Create, update, reorder, and delete retention filters with sample rates from 0-100% to control which RUM events are stored long-term. - Use Case: A frontend team wants to track Core Web Vitals and retain only sessions with errors. Use this Skill to create distribution metrics for LCP, FID, and CLS, then configure a retention filter that keeps 100% of sessions with errors while sampling the rest. ## Quick Start Ask the agent to list all RUM metrics in your organization or create a retention filter for sessions with errors in a specific RUM application.
