OpenTelemetry Instrumentation Skill When adding, changing, or reviewing OTel telemetry in the Copilot Chat extension, always read the two source-of-truth docs first and always keep them in sync with the code you change . 1. Authoritative Documents The directory contains the two specs that define the OTel contract for the extension. Treat them like the layout / layer specs in . | Document | Path | Audience | Covers | |---|---|---|---| | User-facing | | Extension users | Quick start, settings, env vars, exported spans/metrics/events, backend setup guides | | Architecture | | Developers | Multi-…