cloudflare-observability-review

What problem does it solve? It answers "what happened in production?" for the stellar-raven-codemode Cloudflare Worker by providing a structured runbook for querying Workers Logs, platform invocation events, and OTel spans without needing app-level correlation IDs. ## Core Features & Use Cases - Request Joining: Join single invocations via cf-ray headers, $metadata.requestId, and cloudflare.ray_id across app logs, platform events, and spans. - Failure Diagnosis: Investigate demo playground failures, skill retrieval errors, and auth rejections using documented event fields like demo-execute, skill_read, and auth_reject. - Measurement Trap Warnings: Avoid documented pitfalls such as ABR sampling bias, wide-window query undercounting, and misreading truncated flags. - Use Case: A user reports a failed playground chat; you query demo-chat events in a 10-hour window, join failing requests by requestId, and determine whether the failure was model-authored JavaScript or a sandbox timeout. ## Quick Start Ask the agent to investigate a production issue by providing a Ray ID or time window, for example: "Use the cloudflare observability runbook to find what happened to request with Ray ID a15a1ed37fa5b049 in the last 6 hours."