chore: necessary updates given the changes in the alert controller

VigilCare.ClinicalContracts/Sync/SyncedAlertEvent.cs

@@ -4,4 +4,5 @@ public record SyncedAlertEvent(
     string AlertType,
     string Severity,
     string Details,
-    DateTimeOffset GeneratedAt);
+    DateTimeOffset GeneratedAt,
+    string? ExplanationJson = null);

VigilCare.Simulator/Client/Models/AlertExplanation.cs

@@ -0,0 +1,32 @@
+public class AlertExplanation
+{
+    public List<ScoreContributor> ScoreContributors { get; set; } = new();
+    public TrendContext? Trend { get; set; }
+    public MedicationContext? MedicationContext { get; set; }
+    public string NarrativeSummary { get; set; } = string.Empty;
+}
+
+public class ScoreContributor
+{
+    public string Parameter { get; set; } = string.Empty;
+    public int Points { get; set; }
+    public string? RawValue { get; set; }
+    public string? NormalRange { get; set; }
+}
+
+public class TrendContext
+{
+    public string Parameter { get; set; } = string.Empty;
+    public double PercentChange { get; set; }
+    public TimeSpan Duration { get; set; }
+    public string Direction { get; set; } = string.Empty;
+}
+
+public class MedicationContext
+{
+    public string DrugName { get; set; } = string.Empty;
+    public string Dose { get; set; } = string.Empty;
+    public string Route { get; set; } = string.Empty;
+    public DateTimeOffset AdministeredAt { get; set; }
+    public string? RelevanceNote { get; set; }
+}

VigilCare.Simulator/Client/Models/AlertResponse.cs

@@ -1,3 +1,19 @@
 public record AlertResponse(
-    Guid Id, string AlertType, string Severity, string Status,
+    Guid Id,
-    string Details, DateTimeOffset TriggeredAt);
+    Guid EncounterId,
+    Guid PatientId,
+    string AlertType,
+    string Severity,
+    string Details,
+    string Status,
+    DateTimeOffset TriggeredAt,
+    DateTimeOffset? AcknowledgedAt = null,
+    string? AcknowledgedBy = null,
+    DateTimeOffset? ResolvedAt = null,
+    AlertExplanation? Explanation = null)
+{
+    public string DisplaySummary =>
+        string.IsNullOrWhiteSpace(Explanation?.NarrativeSummary)
+            ? Details
+            : Explanation!.NarrativeSummary;
+}

VigilCare.Simulator/Client/VigilCareApiClient.cs

@@ -1,8 +1,11 @@
 using System.Net.Http.Headers;
 using System.Net.Http.Json;
+using System.Text.Json;
 
 public class VigilCareApiClient
 {
+    private static readonly JsonSerializerOptions ApiJsonOptions = new(JsonSerializerDefaults.Web);
+
     private readonly HttpClient _http;
 
     public VigilCareApiClient(HttpClient http)
@@ -147,7 +150,7 @@ public class VigilCareApiClient
         var response = await _http.GetAsync($"/api/v1/encounters/{encounterId}/alerts");
         if (!response.IsSuccessStatusCode) return new();
         var envelope = await response.Content
-            .ReadFromJsonAsync<ApiResponse<PagedResponse<AlertResponse>>>();
+            .ReadFromJsonAsync<ApiResponse<PagedResponse<AlertResponse>>>(ApiJsonOptions);
         return envelope?.Data?.Items?.ToList() ?? new();
     }
 

VigilCare.Simulator/Engine/ReplayEngine.cs

@@ -126,6 +126,19 @@ public class ReplayEngine
 
         // --- Phase 3: Summary ---
         result.Duration = DateTimeOffset.UtcNow - startTime;
+
+        if (!options.DryRun
+            && options.Target == ReplayTarget.Central
+            && scenario.ExpectedOutcomes is { Count: > 0 })
+        {
+            var failures = await ExpectedOutcomeValidator.ValidateAsync(
+                _client, result.EncounterId, scenario, ct);
+            result.HadExpectedOutcomes = true;
+            result.OutcomeFailures.AddRange(failures);
+            foreach (var failure in failures)
+                SimulatorConsole.Error(failure);
+        }
+
         SimulatorConsole.Summary(result);
         return result;
     }

VigilCare.Simulator/Engine/ReplayResult.cs

@@ -9,6 +9,10 @@ public class ReplayResult
     public int OrdersPlaced { get; set; }
     public int OrdersResulted { get; set; }
     public TimeSpan Duration { get; set; }
+    public List<string> OutcomeFailures { get; } = new();
+    public bool HadExpectedOutcomes { get; set; }
+
+    public bool OutcomesPassed => OutcomeFailures.Count == 0;
 
     public ReplayResult(string scenarioId) => ScenarioId = scenarioId;
 }

VigilCare.Simulator/Output/SimulatorConsole.cs

@@ -47,6 +47,13 @@ public static class SimulatorConsole
         table.AddRow("Orders placed", r.OrdersPlaced.ToString());
         table.AddRow("Orders resulted", r.OrdersResulted.ToString());
         table.AddRow("Wall-clock time", $"{r.Duration.TotalSeconds:F1}s");
+        if (r.HadExpectedOutcomes)
+        {
+            table.AddRow("Expected outcomes",
+                r.OutcomeFailures.Count > 0
+                    ? $"[red]{r.OutcomeFailures.Count} failed[/]"
+                    : "[green]passed[/]");
+        }
         AnsiConsole.Write(table);
     }
 
@@ -88,8 +95,12 @@ public static class SimulatorConsole
                 $"[cyan][[{simTime}]][/] qSOFA screen = {poll.Qsofa.ActiveCriteria}/3");
 
         foreach (var alert in poll.NewAlerts)
-            AnsiConsole.MarkupLine(
+        {
-                $"[red][[{simTime}]][/] ALERT {alert.AlertType} ({alert.Severity})");
+            var line = $"[red][[{simTime}]][/] ALERT {alert.AlertType} ({alert.Severity})";
+            if (!string.IsNullOrWhiteSpace(alert.Explanation?.NarrativeSummary))
+                line += $" — {Markup.Escape(alert.Explanation.NarrativeSummary)}";
+            AnsiConsole.MarkupLine(line);
+        }
 
         if (poll.SepsisBundle is not null)
             AnsiConsole.MarkupLine(

VigilCare.Simulator/Scenarios/ExpectedOutcomeValidator.cs

@@ -0,0 +1,150 @@
+public static class ExpectedOutcomeValidator
+{
+  private static readonly TimeSpan AsyncSettleDelay = TimeSpan.FromSeconds(8);
+
+  public static async Task<List<string>> ValidateAsync(
+      VigilCareApiClient client,
+      Guid encounterId,
+      ScenarioFile scenario,
+      CancellationToken ct = default)
+  {
+    if (scenario.ExpectedOutcomes is not { Count: > 0 })
+      return [];
+
+    await Task.Delay(AsyncSettleDelay, ct);
+
+    var failures = new List<string>();
+    var alerts = await client.GetAlertsAsync(encounterId);
+
+    foreach (var outcome in scenario.ExpectedOutcomes)
+    {
+      switch (outcome.Type)
+      {
+        case "alert":
+          failures.AddRange(ValidateAlertOutcome(outcome, alerts, scenario.Scenario.Id));
+          break;
+        case "score":
+          failures.AddRange(await ValidateScoreOutcomeAsync(client, encounterId, outcome, scenario.Scenario.Id, ct));
+          break;
+        case "bundle":
+          failures.AddRange(await ValidateBundleOutcomeAsync(client, encounterId, outcome, scenario.Scenario.Id, ct));
+          break;
+        default:
+          failures.Add($"[{scenario.Scenario.Id}] Unknown expected outcome type '{outcome.Type}'");
+          break;
+      }
+    }
+
+    return failures;
+  }
+
+  private static IEnumerable<string> ValidateAlertOutcome(
+      ExpectedOutcome outcome, List<AlertResponse> alerts, string scenarioId)
+  {
+    if (string.IsNullOrWhiteSpace(outcome.AlertType))
+    {
+      yield return $"[{scenarioId}] Alert outcome at T+{outcome.AfterOffsetMinutes}m missing alertType";
+      yield break;
+    }
+
+    var matching = alerts
+        .Where(a => string.Equals(a.AlertType, outcome.AlertType, StringComparison.OrdinalIgnoreCase))
+        .ToList();
+
+    if (matching.Count == 0)
+    {
+      yield return
+          $"[{scenarioId}] Expected alert {outcome.AlertType} at T+{outcome.AfterOffsetMinutes}m — not found " +
+          $"(description: {outcome.Description ?? "n/a"})";
+      yield break;
+    }
+
+    if (!string.IsNullOrWhiteSpace(outcome.NarrativeContains))
+    {
+      var withNarrative = matching.FirstOrDefault(a =>
+          a.Explanation?.NarrativeSummary?.Contains(
+              outcome.NarrativeContains, StringComparison.OrdinalIgnoreCase) == true);
+
+      if (withNarrative is null)
+      {
+        var summaries = matching
+            .Select(a => a.Explanation?.NarrativeSummary ?? a.Details)
+            .Take(2);
+        yield return
+            $"[{scenarioId}] Alert {outcome.AlertType} at T+{outcome.AfterOffsetMinutes}m — " +
+            $"narrative does not contain '{outcome.NarrativeContains}' " +
+            $"(got: {string.Join(" | ", summaries)})";
+      }
+    }
+  }
+
+  private static async Task<IEnumerable<string>> ValidateScoreOutcomeAsync(
+      VigilCareApiClient client,
+      Guid encounterId,
+      ExpectedOutcome outcome,
+      string scenarioId,
+      CancellationToken ct)
+  {
+    if (string.IsNullOrWhiteSpace(outcome.ScoreType))
+      return [$"[{scenarioId}] Score outcome at T+{outcome.AfterOffsetMinutes}m missing scoreType"];
+
+    if (!outcome.ExpectedMinimum.HasValue)
+      return [$"[{scenarioId}] Score outcome at T+{outcome.AfterOffsetMinutes}m missing expectedMinimum"];
+
+    var actual = await GetScoreAsync(client, encounterId, outcome.ScoreType, ct);
+    if (actual is null)
+    {
+      return
+      [
+        $"[{scenarioId}] Expected {outcome.ScoreType} ≥ {outcome.ExpectedMinimum} at T+{outcome.AfterOffsetMinutes}m — score not available"
+      ];
+    }
+
+    if (actual.Value < outcome.ExpectedMinimum.Value)
+    {
+      return
+      [
+        $"[{scenarioId}] Expected {outcome.ScoreType} ≥ {outcome.ExpectedMinimum} at T+{outcome.AfterOffsetMinutes}m — got {actual.Value} " +
+        $"(description: {outcome.Description ?? "n/a"})"
+      ];
+    }
+
+    return [];
+  }
+
+  private static async Task<IEnumerable<string>> ValidateBundleOutcomeAsync(
+      VigilCareApiClient client,
+      Guid encounterId,
+      ExpectedOutcome outcome,
+      string scenarioId,
+      CancellationToken ct)
+  {
+    var bundle = await client.GetSepsisBundleAsync(encounterId);
+    if (bundle is null)
+    {
+      return
+      [
+        $"[{scenarioId}] Expected sepsis bundle at T+{outcome.AfterOffsetMinutes}m — bundle not found " +
+        $"(description: {outcome.Description ?? "n/a"})"
+      ];
+    }
+
+    return [];
+  }
+
+  private static async Task<int?> GetScoreAsync(
+      VigilCareApiClient client,
+      Guid encounterId,
+      string scoreType,
+      CancellationToken ct)
+  {
+    return scoreType.ToUpperInvariant() switch
+    {
+      "NEWS2" => (await client.GetCurrentNews2Async(encounterId))?.TotalScore,
+      "GCS" => (await client.GetCurrentGcsAsync(encounterId))?.TotalScore,
+      "SOFA" => (await client.GetCurrentSofaAsync(encounterId))?.TotalScore,
+      "QSOFA" => (await client.GetCurrentQsofaAsync(encounterId))?.ActiveCriteria,
+      _ => null
+    };
+  }
+}

VigilCare.Simulator/Scenarios/List/cardiac-arrest-post-mi-01.json

@@ -1269,13 +1269,15 @@
       "afterOffsetMinutes": 105,
       "type": "alert",
       "alertType": "NEWS2_EMERGENCY",
-      "description": "NEWS2 total of 8 (>=7) triggers EMERGENCY alert \u2014 rapid hemodynamic compromise"
+      "narrativeContains": "NEWS2",
+      "description": "NEWS2 total of 8 (>=7) triggers EMERGENCY alert — rapid hemodynamic compromise"
     },
     {
       "afterOffsetMinutes": 105,
       "type": "alert",
       "alertType": "RAPID_DETERIORATION",
-      "description": "HR rose from 88 to 121 (+33 bpm) and SBP fell from 132 to 100 (-32 mmHg) within 75 minutes, SpO2 dropped from 97 to 93 \u2014 consistent with rapid deterioration detection"
+      "narrativeContains": "deterioration",
+      "description": "HR rose from 88 to 121 (+33 bpm) and SBP fell from 132 to 100 (-32 mmHg) within 75 minutes, SpO2 dropped from 97 to 93 — consistent with rapid deterioration detection"
     },
     {
       "afterOffsetMinutes": 130,

VigilCare.Simulator/Scenarios/List/neurological-decline-gcs-01.json

@@ -156,12 +156,14 @@
       "afterOffsetMinutes": 60,
       "type": "alert",
       "alertType": "GCS_WARNING",
+      "narrativeContains": "GCS",
       "description": "GCS 12 in 9–12 band"
     },
     {
       "afterOffsetMinutes": 150,
       "type": "alert",
       "alertType": "GCS_CRITICAL",
+      "narrativeContains": "GCS",
       "description": "GCS 6 ≤ 8"
     }
   ]

VigilCare.Simulator/Scenarios/List/sepsis-sofa-progression-01.json

@@ -252,6 +252,7 @@
       "afterOffsetMinutes": 130,
       "type": "alert",
       "alertType": "SOFA_SEPSIS",
+      "narrativeContains": "SOFA",
       "description": "SOFA delta ≥ 2 from baseline after labs + vasopressor"
     },
     {

VigilCare.Simulator/Scenarios/ScenarioFile.cs

@@ -25,4 +25,5 @@ public record ScenarioEvent(
 public record ExpectedOutcome(
     double AfterOffsetMinutes, string Type,
     string? AlertType, string? ScoreType,
-    double? ExpectedMinimum, string? Description);
+    double? ExpectedMinimum, string? Description,
+    string? NarrativeContains = null);

VigilCare.Simulator/Scenarios/schema.json

@@ -60,7 +60,8 @@
           "alertType": { "type": "string" },
           "scoreType": { "type": "string" },
           "expectedMinimum": { "type": "number" },
-          "description": { "type": "string" }
+          "description": { "type": "string" },
+          "narrativeContains": { "type": "string", "description": "Substring expected in explanation.narrativeSummary for explainable scoring alerts" }
         }
       }
     },

VigilCare.WardGateway/BackgroundService/SyncUploaderService.cs

@@ -170,7 +170,8 @@ public sealed class SyncUploaderService : BackgroundService
             p.AlertType,
             p.Severity,
             p.Details,
-            p.GeneratedAt);
+            p.GeneratedAt,
+            p.ExplanationJson);
     }
 
     private static SyncedAlertAcknowledgment MapAck(BufferedSyncItem item)
@@ -215,7 +216,8 @@ public sealed class SyncUploaderService : BackgroundService
         string AlertType,
         string Severity,
         string Details,
-        DateTimeOffset GeneratedAt);
+        DateTimeOffset GeneratedAt,
+        string? ExplanationJson = null);
 
     private sealed record BufferedAckPayload(
         Guid ClientRef,

VigilCare.WardGateway/Data/Configurations/LocalClinicalAlertConfiguration.cs

@@ -65,6 +65,9 @@ public class LocalClinicalAlertConfiguration : IEntityTypeConfiguration<LocalCli
         builder.Property(a => a.ResolvedAt).HasColumnName("resolved_at");
         builder.Property(a => a.ClientAlertId).HasColumnName("client_alert_id").IsRequired();
         builder.Property(a => a.TriggeredAt).HasColumnName("triggered_at").HasDefaultValueSql("NOW()");
+        builder.Property(a => a.ExplanationJson)
+            .HasColumnName("explanation")
+            .HasColumnType("jsonb");
 
         builder.HasOne(a => a.Encounter)
             .WithMany(e => e.Alerts)

VigilCare.WardGateway/Domain/Entities/LocalClinicalAlert.cs

@@ -14,6 +14,7 @@ public class LocalClinicalAlert
     public DateTimeOffset? ResolvedAt { get; set; }
     public DateTimeOffset TriggeredAt { get; set; }
     public Guid ClientAlertId { get; set; }
+    public string? ExplanationJson { get; set; }
 
     public ReplicaEncounter Encounter { get; set; } = null!;
 }

VigilCare.WardGateway/Migrations/20260625000000_AddLocalAlertExplanation.cs

@@ -0,0 +1,24 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace VigilCare.WardGateway.Migrations;
+
+public partial class AddLocalAlertExplanation : Migration
+{
+    protected override void Up(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.AddColumn<string>(
+            name: "explanation",
+            table: "clinical_alerts",
+            type: "jsonb",
+            nullable: true);
+    }
+
+    protected override void Down(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.DropColumn(
+            name: "explanation",
+            table: "clinical_alerts");
+    }
+}

VigilCare.WardGateway/Migrations/GatewayDbContextModelSnapshot.cs

@@ -140,6 +140,10 @@ namespace VigilCare.WardGateway.Migrations
                         .HasColumnType("text")
                         .HasColumnName("details");
 
+                    b.Property<string>("ExplanationJson")
+                        .HasColumnType("jsonb")
+                        .HasColumnName("explanation");
+
                     b.Property<Guid>("EncounterId")
                         .HasColumnType("uuid")
                         .HasColumnName("encounter_id");

VigilCareClinicalAPI/BackgroundServices/ElasticsSearch/EsIndexerService.cs

@@ -227,6 +227,13 @@ public class EsIndexerService : BackgroundService
             AlertType = evt.AlertType,
             Severity = evt.Severity,
             Status = "Open",
+            Details = root.TryGetProperty("details", out var detailsElem)
+                ? detailsElem.GetString() ?? string.Empty
+                : string.Empty,
+            NarrativeSummary = root.TryGetProperty("explanation", out var explanationElem)
+                && explanationElem.TryGetProperty("narrativeSummary", out var narrativeElem)
+                ? narrativeElem.GetString()
+                : null,
             TriggeredAt = evt.TriggeredAt
         };
 

VigilCareClinicalAPI/Controllers/AlertsController.cs

@@ -135,13 +135,13 @@ public class AlertsController : ControllerBase
     /// <returns>The updated alert.</returns>
     [HttpPost("api/v1/alerts/{id:guid}/acknowledge")]
     [AuthorizePermission(ClinicalPermissions.AlertsAcknowledge)]
-    [ProducesResponseType(typeof(ApiResponse<ClinicalAlert>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<AlertResponse>), StatusCodes.Status200OK)]
     [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
     [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status409Conflict)]
     public async Task<IActionResult> Acknowledge(Guid id, [FromBody] AcknowledgeAlertRequest req)
     {
         var alert = await _alerts.AcknowledgeAsync(id, req);
-        return Ok(ApiResponse<ClinicalAlert>.Ok(alert));
+        return Ok(ApiResponse<AlertResponse>.Ok(alert));
     }
 
     /// <summary>
@@ -151,13 +151,13 @@ public class AlertsController : ControllerBase
     /// <returns>The updated alert.</returns>
     [HttpPost("api/v1/alerts/{id:guid}/resolve")]
     [AuthorizePermission(ClinicalPermissions.AlertsResolve)]
-    [ProducesResponseType(typeof(ApiResponse<ClinicalAlert>), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(ApiResponse<AlertResponse>), StatusCodes.Status200OK)]
     [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status404NotFound)]
     [ProducesResponseType(typeof(ApiResponse<object>), StatusCodes.Status409Conflict)]
     public async Task<IActionResult> Resolve(Guid id)
     {
         var alert = await _alerts.ResolveAsync(id);
-        return Ok(ApiResponse<ClinicalAlert>.Ok(alert));
+        return Ok(ApiResponse<AlertResponse>.Ok(alert));
     }
 
     /// <summary>

VigilCareClinicalAPI/DataLake/DataLakeEventParser.cs

@@ -39,6 +39,7 @@ public static class DataLakeEventParser
             AlertType      : GetString(d, "alertType"),
             Severity       : GetString(d, "severity"),
             Details        : GetString(d, "details"),
+            ExplanationJson: GetJsonObjectString(d, "explanation"),
             TriggeredAt    : GetTimestampString(d, "triggeredAt"),
             KafkaPartition : partition,
             KafkaOffset    : offset);
@@ -78,6 +79,13 @@ public static class DataLakeEventParser
         }
     }
 
+    private static string GetJsonObjectString(JsonElement d, string name)
+    {
+        if (!TryGetProperty(d, name, out var prop) || prop.ValueKind != JsonValueKind.Object)
+            return "";
+        return prop.GetRawText();
+    }
+
     private static string GetString(JsonElement d, string primary, string? alternate = null)
     {
         if (TryGetProperty(d, primary, out var prop))

VigilCareClinicalAPI/DataLake/ParquetFileBuilder.cs

@@ -49,6 +49,7 @@ public static class ParquetFileBuilder
             new DataField<string>("alert_type"),
             new DataField<string>("severity"),
             new DataField<string>("details"),
+            new DataField<string>("explanation_json"),
             new DataField<string>("triggered_at"),
             new DataField<int>("kafka_partition"),
             new DataField<long>("kafka_offset")
@@ -65,9 +66,10 @@ public static class ParquetFileBuilder
             await rg.WriteColumnAsync(new DataColumn(f[3], rows.Select(r => r.AlertType).ToArray()));
             await rg.WriteColumnAsync(new DataColumn(f[4], rows.Select(r => r.Severity).ToArray()));
             await rg.WriteColumnAsync(new DataColumn(f[5], rows.Select(r => r.Details).ToArray()));
-            await rg.WriteColumnAsync(new DataColumn(f[6], rows.Select(r => r.TriggeredAt).ToArray()));
+            await rg.WriteColumnAsync(new DataColumn(f[6], rows.Select(r => r.ExplanationJson).ToArray()));
-            await rg.WriteColumnAsync(new DataColumn(f[7], rows.Select(r => r.KafkaPartition).ToArray()));
+            await rg.WriteColumnAsync(new DataColumn(f[7], rows.Select(r => r.TriggeredAt).ToArray()));
-            await rg.WriteColumnAsync(new DataColumn(f[8], rows.Select(r => r.KafkaOffset).ToArray()));
+            await rg.WriteColumnAsync(new DataColumn(f[8], rows.Select(r => r.KafkaPartition).ToArray()));
+            await rg.WriteColumnAsync(new DataColumn(f[9], rows.Select(r => r.KafkaOffset).ToArray()));
         }
         return ms.ToArray();
     }

VigilCareClinicalAPI/Elasticsearch/Documents/ClinicalAlertDocument.cs

@@ -7,5 +7,7 @@ public class ClinicalAlertDocument
     public string AlertType { get; set; } = null!;
     public string Severity { get; set; } = null!;
     public string Status { get; set; } = null!;
+    public string Details { get; set; } = string.Empty;
+    public string? NarrativeSummary { get; set; }
     public DateTimeOffset TriggeredAt { get; set; }
 }

VigilCareClinicalAPI/Models/Records/Alert/AlertRow.cs

@@ -5,6 +5,7 @@ public sealed record AlertRow(
     string AlertType,
     string Severity,
     string Details,
+    string ExplanationJson,
     string TriggeredAt,
     int    KafkaPartition,
     long   KafkaOffset

VigilCareClinicalAPI/Services/AlertService.cs

@@ -85,7 +85,7 @@ public class AlertService : IAlertService
         return AlertResponseMapper.ToResponse(alert);
     }
 
-    public async Task<ClinicalAlert> AcknowledgeAsync(Guid id, AcknowledgeAlertRequest req)
+    public async Task<AlertResponse> AcknowledgeAsync(Guid id, AcknowledgeAlertRequest req)
     {
         if (!_currentUser.IsAuthenticated)
             throw new ValidationException("Authentication required.", "AUTH_REQUIRED");
@@ -164,7 +164,7 @@ public class AlertService : IAlertService
                 reason: acknowledgmentNote);
         }
 
-        return alert;
+        return AlertResponseMapper.ToResponse(alert);
     }
 
     public async Task<AlertFeedback> SubmitFeedbackAsync(
@@ -234,7 +234,7 @@ public class AlertService : IAlertService
         return overrideMinutes ?? defaultWindowMinutes;
     }
 
-    public async Task<ClinicalAlert> ResolveAsync(Guid id)
+    public async Task<AlertResponse> ResolveAsync(Guid id)
     {
         var alert = await _db.ClinicalAlerts.FindAsync(id);
         if (alert is null)
@@ -256,7 +256,7 @@ public class AlertService : IAlertService
             previousValue: new { status = AlertStatus.Acknowledged.ToDbString() },
             newValue: new { status = alert.Status.ToDbString() });
 
-        return alert;
+        return AlertResponseMapper.ToResponse(alert);
     }
 
     public async Task ApplySyncedAcknowledgmentAsync(

VigilCareClinicalAPI/Services/ClinicalSyncBatchProcessor.cs

@@ -6,6 +6,11 @@ using VigilCare.ClinicalContracts.Sync;
 
 public class ClinicalSyncBatchProcessor
 {
+    private static readonly JsonSerializerOptions ExplanationJsonOptions = new()
+    {
+        PropertyNameCaseInsensitive = true
+    };
+
     private readonly AppDbContext _db;
     private readonly IObservationService _observations;
     private readonly IAlertService _alerts;
@@ -163,6 +168,7 @@ public class ClinicalSyncBatchProcessor
             AlertType = AlertTypeExtensions.FromDbString(alert.AlertType),
             Severity = AlertSeverityExtensions.FromDbString(alert.Severity),
             Details = alert.Details,
+            Explanation = ParseExplanation(alert.ExplanationJson),
             Status = AlertStatus.Open,
             TriggeredAt = alert.GeneratedAt
         };
@@ -172,7 +178,7 @@ public class ClinicalSyncBatchProcessor
         {
             Id = Guid.NewGuid(),
             Topic = "alert.generated",
-            Payload = JsonSerializer.Serialize(new
+            Payload = ClinicalAlertFactory.SerializeOutboxPayload(new
             {
                 alertId = clinicalAlert.Id,
                 encounterId = alert.EncounterId,
@@ -180,6 +186,7 @@ public class ClinicalSyncBatchProcessor
                 alertType = alert.AlertType,
                 severity = alert.Severity,
                 details = alert.Details,
+                explanation = clinicalAlert.Explanation,
                 syncedFromGateway = true,
                 triggeredAt = alert.GeneratedAt,
                 partitionKey = alert.EncounterId.ToString()
@@ -231,4 +238,9 @@ public class ClinicalSyncBatchProcessor
         _db.ClinicalSyncConflicts.Add(new ClinicalSyncConflict(batchId, clientRef, itemType, reason));
         await _db.SaveChangesAsync(ct);
     }
+
+    private static AlertExplanation? ParseExplanation(string? explanationJson) =>
+        string.IsNullOrWhiteSpace(explanationJson)
+            ? null
+            : JsonSerializer.Deserialize<AlertExplanation>(explanationJson, ExplanationJsonOptions);
 }

VigilCareClinicalAPI/Services/Interfaces/IAlertService.cs

@@ -8,9 +8,9 @@ public interface IAlertService
 
     Task<AlertResponse> GetByIdAsync(Guid id);
 
-    Task<ClinicalAlert> AcknowledgeAsync(Guid id, AcknowledgeAlertRequest req);
+    Task<AlertResponse> AcknowledgeAsync(Guid id, AcknowledgeAlertRequest req);
 
-    Task<ClinicalAlert> ResolveAsync(Guid id);
+    Task<AlertResponse> ResolveAsync(Guid id);
     Task ApplySyncedAcknowledgmentAsync(Guid alertId, SyncedAlertAcknowledgment ack, CancellationToken ct);
     Task ApplySyncedResolutionAsync(Guid alertId, SyncedAlertResolution resolve, CancellationToken ct);
     Task<AlertFeedback> SubmitFeedbackAsync(Guid alertId, AlertFeedbackType type, string? comment);

docs/alert-optimization-roadmap.md

@@ -24,16 +24,16 @@ Each priority is scored on three dimensions using a 1-10 scale.
 
 ## Summary Matrix
 
-| Phase | Feature                            | Commercial | Clinical | Composite | Dependencies       |
+| Phase | Feature                            | Commercial | Clinical | Composite | Dependencies       | Status    |
-|-------|------------------------------------|------------|----------|-----------|--------------------|
+|-------|------------------------------------|------------|----------|-----------|--------------------|-----------|
-| 33    | Alert Quality Analytics            | 10         | 9        | 9.5       | None               |
+| 33    | Alert Quality Analytics            | 10         | 9        | 9.5       | None               | —         |
-| 34    | Explainable Alerts                 | 8          | 10       | 9.0       | None               |
+| 34    | Explainable Alerts                 | 8          | 10       | 9.0       | None               | Complete  |
-| 35    | Alert Lifecycle Analytics          | 9          | 7        | 8.0       | Phase 33           |
+| 35    | Alert Lifecycle Analytics          | 9          | 7        | 8.0       | Phase 33           | —         |
-| 36    | Role-Based Alert Routing           | 8          | 9        | 8.5       | Phase 33, 35       |
+| 36    | Role-Based Alert Routing           | 8          | 9        | 8.5       | Phase 33, 35       | —         |
-| 37    | Alert Bundling and Correlation     | 7          | 8        | 7.5       | Phase 34           |
+| 37    | Alert Bundling and Correlation     | 7          | 8        | 7.5       | Phase 34           | —         |
-| 38    | Adaptive Threshold Recommendations | 9          | 6        | 7.5       | Phase 33, 35 (months of data) |
+| 38    | Adaptive Threshold Recommendations | 9          | 6        | 7.5       | Phase 33, 35 (months of data) | — |
-| 39    | Scoring Framework Abstraction      | 5          | 4        | 4.5       | None               |
+| 39    | Scoring Framework Abstraction      | 5          | 4        | 4.5       | None               | —         |
-| 40    | MEWS                               | 5          | 5        | 5.0       | Phase 39           |
+| 40    | MEWS                               | 5          | 5        | 5.0       | Phase 39           | —         |
 
 ---
 

docs/decisions/data-lake-design.md

@@ -90,6 +90,7 @@ offsets are not committed and events are re-read on the next start.
 | `alert_type` | `alertType` | e.g. `WARNING_HEART_RATE`, `CRITICAL_HEART_RATE` |
 | `severity` | `severity` | e.g. `Warning`, `Critical` |
 | `details` | `details` | Required on all new alert producers; parser defaults to `""` if absent |
+| `explanation_json` | `explanation` | Optional JSON object (Phase 34); null for threshold-only alerts |
 | `triggered_at` | `triggeredAt` | ISO-8601 |
 
 Phase 11 aligned warning and sepsis outbox producers with critical ingest alerts by

docs/patient-encounter-api-lifecycle.md

@@ -980,7 +980,7 @@ The Vue ward dashboard (`vigilcare-dashboard/`) implements this lifecycle throug
 | Patient Detail | `GET /encounters/{id}`, `GET .../news2/current`, `GET .../sofa/current`, `GET .../medications`, `GET .../orders`, `GET .../sepsis-bundle/current`, `GET .../observations`, `GET .../news2/history` |
 | Alert Center | `GET /alerts?status=OPEN` |
 | Alert actions | `POST /alerts/{id}/acknowledge`, `POST /alerts/{id}/resolve` |
-| Alert reasoning | `alert.details` from alert list + client-side medication window from `GET .../medications` |
+| Alert reasoning | `alert.explanation` from alert list/GET (narrative, score contributors, trend, medication context); legacy alerts fall back to `alert.details` |
 
 ---
 
@@ -996,7 +996,7 @@ The Vue ward dashboard (`vigilcare-dashboard/`) implements this lifecycle throug
 | qSOFA screen | No | PostgreSQL → Kafka → sepsis engine (reads Redis) → PostgreSQL | `GET .../alerts`, `GET .../qsofa/current` |
 | GCS score / alert | No | PostgreSQL → Kafka → GCS scorer → PostgreSQL | `GET .../gcs/current`, `GET .../alerts` |
 | Trend alert | No | PostgreSQL → Kafka → trend analyzer (reads Redis history) → PostgreSQL | `GET .../alerts` |
-| Medication annotation on alert | No — applied at alert creation | Kafka consumer reads recent meds from PostgreSQL | `GET .../alerts` → read `details` field |
+| Medication annotation on alert | No — applied at alert creation | Kafka consumer reads recent meds from PostgreSQL | `GET .../alerts` → read `explanation.medicationContext` or legacy `details` |
 | Search index updated | No | PostgreSQL → Kafka → ES indexer → Elasticsearch | `GET /analytics/...` endpoints |
 | Data lake file written | No | PostgreSQL → Kafka → data lake writer → MinIO (Parquet); offsets only committed for successful partition uploads | MinIO bucket `vigilcare` |
 | Clinician paged | No | Kafka → notification publisher → RabbitMQ paging queue | Alert `status` field |

vigilcare-dashboard/src/api/alerts.js

@@ -1,5 +1,9 @@
 import { api } from './client'
 
+export function fetchAlertById(alertId) {
+  return api.get(`/api/v1/alerts/${alertId}`)
+}
+
 export function fetchAlerts(encounterId, status) {
   const params = new URLSearchParams()
   if (status) params.set('status', status)

vigilcare-dashboard/src/views/PatientDetail.vue

@@ -9,6 +9,7 @@ import { useAlertStore } from '@/stores/alerts'
 import { useScoringStore } from '@/stores/scoring'
 import * as encountersApi from '@/api/encounters'
 import * as clinicalApi from '@/api/clinical'
+import * as alertsApi from '@/api/alerts'
 import PatientBanner from '@/components/patient/PatientBanner.vue'
 import VitalsPanel from '@/components/patient/VitalsPanel.vue'
 import ScoresPanel from '@/components/patient/ScoresPanel.vue'
@@ -157,8 +158,12 @@ async function loadAll() {
   }
 }
 
-function onSelectAlert(alert) {
+async function onSelectAlert(alert) {
+  try {
+    selectedAlert.value = await alertsApi.fetchAlertById(alert.id)
+  } catch {
     selectedAlert.value = alert
+  }
   jumpToTimestamp(alert.triggeredAt)
 }