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src/Policy/StellaOps.Policy.Engine/Events/ExceptionEventPublisher.cs

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+using Microsoft.Extensions.Logging;
+using StellaOps.Policy.Engine.ExceptionCache;
+
+namespace StellaOps.Policy.Engine.Events;
+
+/// <summary>
+/// Publishes exception lifecycle events and keeps local caches warm.
+/// </summary>
+public interface IExceptionEventPublisher
+{
+    Task PublishAsync(ExceptionEvent exceptionEvent, CancellationToken cancellationToken = default);
+}
+
+internal sealed class LoggingExceptionEventPublisher : IExceptionEventPublisher
+{
+    private readonly IExceptionEffectiveCache? _cache;
+    private readonly ILogger<LoggingExceptionEventPublisher> _logger;
+
+    public LoggingExceptionEventPublisher(
+        IExceptionEffectiveCache? cache,
+        ILogger<LoggingExceptionEventPublisher> logger)
+    {
+        _cache = cache;
+        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
+    }
+
+    public async Task PublishAsync(ExceptionEvent exceptionEvent, CancellationToken cancellationToken = default)
+    {
+        ArgumentNullException.ThrowIfNull(exceptionEvent);
+
+        if (_cache is not null)
+        {
+            await _cache.HandleExceptionEventAsync(exceptionEvent, cancellationToken).ConfigureAwait(false);
+        }
+
+        _logger.LogInformation(
+            "Published exception event {EventType} for exception {ExceptionId} tenant {TenantId}",
+            exceptionEvent.EventType,
+            exceptionEvent.ExceptionId,
+            exceptionEvent.TenantId);
+    }
+}