Learn how telemetry works in the Apollo GraphOS Router, from OpenTelemetry instrumentation to metric exporters. Understand cardinality limits, diagnose overflow issues, and tune your router config for production-scale observability.
Apollo Skills teaches AI agents to write production-quality GraphQL. Covers Apollo Client, Apollo Server, Connectors, schema design, and operations. Install: npx skills add apollographql/skills. Works with Claude Code, Cursor, Copilot. Open source at github.com/apollographql/skills