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Lead with a complete plugin quick start and add task-oriented usage, troubleshooting, customization, and contribution guides. Preserve the broader plugin framing, correct conflicting contract guidance, support Agents folder reviews, and align repository validation. Convert existing sample references to clickable links without changing knowledge rules. Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com> Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
26 lines
1.7 KiB
Markdown
26 lines
1.7 KiB
Markdown
---
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bc-version: [17..]
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domain: telemetry
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keywords: [telemetryscope, extensionpublisher, all, audience, logmessage, application-insights]
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technologies: [al]
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countries: [w1]
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application-area: [all]
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---
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# Choose TelemetryScope by who must receive the signal
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## Description
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`TelemetryScope::ExtensionPublisher` sends a custom trace only to the Application Insights resource configured by the extension publisher. `TelemetryScope::All` also sends it to the environment's telemetry, where the customer or partner operating the tenant can query it. The compiler accepts either value, so a plausible-looking scope can silently hide an actionable signal from tenant operators or expose publisher-only implementation noise to them.
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## Best Practice
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Use `ExtensionPublisher` for internal diagnostics that only the app publisher can interpret, such as cache behavior or private algorithm state. Use `All` for signals the tenant operator can act on, such as an integration failure, quota warning, or setup problem. Decide the audience independently from `DataClassification`; privacy guidance still governs whether the payload may be emitted at all.
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See sample: [`choose-telemetry-scope-by-audience.good.al`](choose-telemetry-scope-by-audience.good.al).
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## Anti Pattern
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Defaulting every call to `All`, including low-level implementation diagnostics, or defaulting every call to `ExtensionPublisher` and thereby hiding customer-actionable failures from environment telemetry. Review only when the message and surrounding branch make the intended audience clear; an ambiguous diagnostic is not enough to infer the wrong scope.
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See sample: [`choose-telemetry-scope-by-audience.bad.al`](choose-telemetry-scope-by-audience.bad.al).
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