= infra-telemetry

== purpose

Placeholder module reserved for telemetry infrastructure — metrics collection, structured logging, tracing export, and monitoring integration. Currently contains only a `Module` marker object with no implementation.

== responsibilities

* Intended: implement metrics collection (counters, gauges, histograms)
* Intended: provide log shipping and structured log formatting
* Intended: export distributed tracing data
* Intended: integrate with monitoring backends (Prometheus, OpenTelemetry, etc.)

== non-responsibilities

* Does not define observability contracts — that belongs to `core:observability`
* Does not implement application-level instrumentation — that belongs to individual modules
* Does not store or query telemetry data long-term

== key types

=== Module
* **kind**: object
* **purpose**: Module marker for the Gradle subproject; no behavior.

== event flow

*None.* No events are consumed or emitted. This is a placeholder.

== integration points

No integration points. The module has no dependencies beyond `core:events`.

== invariants

None — module is empty.

== PlantUML diagram

[plantuml, infra-telemetry, "png"]
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include::../../diagrams/infra-telemetry.puml[]
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== known issues

Module is a placeholder — no telemetry infrastructure exists.

== open questions

* Which telemetry backend will be used (Prometheus, OpenTelemetry, Datadog)?
* Will telemetry be synchronous (side-channel) or event-sourced?