Building a Self-Service Observability Platform with OpenTelemetry

Originally published in Japanese at https://zenn.dev/ymotongpoo/books/observability-platform-with-otel.

This is the companion book to my Platform Engineering Kaigi 2026 talk “Building a Self-Service Observability Platform with OpenTelemetry” (in Japanese). It designs a platform on which development teams set up their own telemetry, using an SDK distribution, zero-code instrumentation, the OpenTelemetry Collector, and semantic conventions. It also extends the platform to observe AI workloads and to let AI agents take part in incident investigation.

• Introduction
• Designing an SDK Distribution
• Distributing Zero-Code Instrumentation
• Designing the Collector Layer and Building a Custom Collector
• Managing a Collector Fleet with OpAMP
• Governing Semantic Conventions with Weaver
• Telemetry for AI Workloads
• AI Reads the Telemetry
• Running the Reference Implementation
• Conclusion
• References