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src/Telemetry/AGENTS.md

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+# Telemetry Module Charter
+
+## Mission
+- Provide deterministic telemetry context, propagation, and metrics outputs.
+
+## Responsibilities
+- Propagate trace, tenant, and correlation context across services.
+- Implement redaction, sampling, and metrics aggregation.
+- Keep telemetry output stable and offline-friendly.
+
+## Required Reading
+- docs/README.md
+- docs/07_HIGH_LEVEL_ARCHITECTURE.md
+- docs/modules/platform/architecture-overview.md
+- docs/modules/telemetry/architecture.md
+- docs/modules/telemetry/guides/telemetry-standards.md
+
+## Working Agreement
+- Use TimeProvider and IGuidGenerator for timestamps and IDs.
+- Use invariant formatting for numeric and date outputs.
+- Avoid external network dependencies in core telemetry paths.
+
+## Testing Strategy
+- Unit tests for context propagation, redaction, and metrics calculations.
+- Determinism tests for sampling windows and output ordering.