feat(native-alarms): per-binding IsMesReportable on native alarm source bindings (ScadaBridge#59)

TemplateNativeAlarmSource.IsMesReportable + tri-state InstanceNativeAlarmSourceOverride .IsMesReportableOverride flatten onto ResolvedNativeAlarmSource; NativeAlarmActor stamps every mirrored condition and InstanceActor the quiet-binding placeholder, so ScriptAlarm, Alarms.MesReportableAsync() and the #60 wire fields carry it. Additive to the 900-999 severity band. Migration AddNativeAlarmSourceMesReportable. Management commands, CLI --mes-reportable, Central UI (template dialog checkbox, instance override select), Transport DTOs/importer/diff and the revision hash (true-only, so existing hashes are unchanged) carry it. Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV
2026-11-09 15:09:54 -05:00
parent 69a2017000
commit f98369a786
38 changed files with 2579 additions and 43 deletions
@@ -87,6 +87,17 @@ Consequences, stated plainly:
  binding is reportable"), or (b) a new per-condition config entity — the first of its kind. Neither
  is designed here.

+**Update (Gitea #59, 2026-11-09): option (a) is built.** `TemplateNativeAlarmSource.IsMesReportable`
+(bool, default false) plus a tri-state `InstanceNativeAlarmSourceOverride.IsMesReportableOverride`
+(null inherits) mean "every condition mirrored under this binding is MES-reportable". It flattens onto
+`ResolvedNativeAlarmSource.IsMesReportable`, `NativeAlarmActor` stamps it on every condition it emits
+and `InstanceActor` stamps it on the quiet-binding placeholder rows, so `ScriptAlarm.IsMesReportable`
+/ `Alarms.MesReportableAsync()` and the wire fields from #60 carry it. It is **additive** to the
+900-999 severity band, which still flags a condition on its own (an inbound-API method ORs the two).
+Migration `AddNativeAlarmSourceMesReportable`; CLI `--mes-reportable` on
+`template native-alarm-source add|update` and `instance native-alarm-source set`; Transport carries
+both fields. Per-condition flags (option b) remain unbuilt.
+
 ### 2.4 Central visibility is a follow-up

 The Alarm Summary / Debug View rows are `AlarmStateChanged` values that arrive over gRPC. Showing a
@@ -651,9 +651,10 @@ public static class InstanceCommands
        var setConnectionOption = new Option<string?>("--connection") { Description = "Connection name override (blank = inherited)" };
        var setSourceRefOption = new Option<string?>("--source-ref") { Description = "Source reference override (blank = inherited)" };
        var setFilterOption = new Option<string?>("--filter") { Description = "Condition filter override (blank = inherited)" };
+        var setMesOption = new Option<bool?>("--mes-reportable") { Description = "MES-reportable override for the binding: true or false; omit to inherit" };
        var setCmd = new Command("set") { Description = "Set (upsert) a native alarm source override on an instance" };
        setCmd.Add(setIdOption); setCmd.Add(setSourceOption); setCmd.Add(setConnectionOption);
-        setCmd.Add(setSourceRefOption); setCmd.Add(setFilterOption);
+        setCmd.Add(setSourceRefOption); setCmd.Add(setFilterOption); setCmd.Add(setMesOption);
        setCmd.SetAction(async (ParseResult result) =>
        {
            return await CommandHelpers.ExecuteCommandAsync(
@@ -663,7 +664,8 @@ public static class InstanceCommands
                    result.GetValue(setSourceOption)!,
                    result.GetValue(setConnectionOption),
                    result.GetValue(setSourceRefOption),
-                    result.GetValue(setFilterOption)));
+                    result.GetValue(setFilterOption),
+                    result.GetValue(setMesOption)));
        });
        group.Add(setCmd);

@@ -180,6 +180,7 @@ public static class TemplateCommands
        var filterOption = new Option<string?>("--filter") { Description = "Condition filter; omit to clear and mirror all conditions" };
        var descriptionOption = new Option<string?>("--description") { Description = "Description; omit to clear" };
        var lockedOption = new Option<bool>("--locked") { Description = "Lock status; omit for unlocked" };
+        var mesOption = new Option<bool>("--mes-reportable") { Description = "Every condition under this binding is MES-reportable (additive to the 900-999 severity band); omit for false" };
        var cmd = new Command("update") { Description = "Replace the fields of a native alarm source binding" };
        cmd.Add(idOption);
        cmd.Add(nameOption);
@@ -188,6 +189,7 @@ public static class TemplateCommands
        cmd.Add(filterOption);
        cmd.Add(descriptionOption);
        cmd.Add(lockedOption);
+        cmd.Add(mesOption);
        cmd.SetAction(async (ParseResult result) =>
        {
            return await CommandHelpers.ExecuteCommandAsync(
@@ -195,7 +197,8 @@ public static class TemplateCommands
                new UpdateTemplateNativeAlarmSourceCommand(
                    result.GetValue(idOption), result.GetValue(nameOption)!,
                    result.GetValue(connectionOption)!, result.GetValue(sourceOption)!,
-                    result.GetValue(filterOption), result.GetValue(descriptionOption), result.GetValue(lockedOption)));
+                    result.GetValue(filterOption), result.GetValue(descriptionOption), result.GetValue(lockedOption),
+                    result.GetValue(mesOption)));
        });
        return cmd;
    }
@@ -838,6 +841,8 @@ public static class TemplateCommands
        var descOption = new Option<string?>("--description") { Description = "Description" };
        var lockedOption = new Option<bool>("--locked") { Description = "Lock status" };
        lockedOption.DefaultValueFactory = _ => false;
+        var mesOption = new Option<bool>("--mes-reportable") { Description = "Every condition under this binding is MES-reportable (additive to the 900-999 severity band)" };
+        mesOption.DefaultValueFactory = _ => false;

        var addCmd = new Command("add") { Description = "Add a native alarm source binding to a template" };
        addCmd.Add(templateIdOption);
@@ -847,6 +852,7 @@ public static class TemplateCommands
        addCmd.Add(filterOption);
        addCmd.Add(descOption);
        addCmd.Add(lockedOption);
+        addCmd.Add(mesOption);
        addCmd.SetAction(async (ParseResult result) =>
        {
            return await CommandHelpers.ExecuteCommandAsync(
@@ -858,7 +864,8 @@ public static class TemplateCommands
                    result.GetValue(sourceRefOption)!,
                    result.GetValue(filterOption),
                    result.GetValue(descOption),
-                    result.GetValue(lockedOption)));
+                    result.GetValue(lockedOption),
+                    result.GetValue(mesOption)));
        });
        group.Add(addCmd);

@@ -333,7 +333,7 @@ Bind a native alarm source to a template — a read-only mirror of an OPC UA Ala
 Conditions server's or the MxAccess Gateway's alarms (no ack-back).

 ```sh
-scadabridge --url <url> template native-alarm-source add --template-id <int> --name <string> --connection <string> --source-ref <string> [--filter <string>] [--description <string>] [--locked]
+scadabridge --url <url> template native-alarm-source add --template-id <int> --name <string> --connection <string> --source-ref <string> [--filter <string>] [--description <string>] [--locked] [--mes-reportable]
 ```

 | Option | Required | Description |
@@ -345,6 +345,7 @@ scadabridge --url <url> template native-alarm-source add --template-id <int> --n
 | `--filter` | no | Condition filter (omit to mirror all conditions under the source) |
 | `--description` | no | Description |
 | `--locked` | no | Lock the binding in derived templates |
+| `--mes-reportable` | no | Every condition under this binding is MES-reportable (additive to the 900-999 severity band) |

 #### `template native-alarm-source list`

@@ -359,10 +360,10 @@ scadabridge --url <url> template native-alarm-source list --template-id <int>
 Replace the fields of an existing native alarm source binding.

 ```sh
-scadabridge template native-alarm-source update --id <source-id> --name <name> --connection <name> --source-ref <reference> [--filter <expression>] [--description <text>] [--locked]
+scadabridge template native-alarm-source update --id <source-id> --name <name> --connection <name> --source-ref <reference> [--filter <expression>] [--description <text>] [--locked] [--mes-reportable]
 ```

-The ID, name, connection, and source reference are required. Omitted filter and description clear those values; omitted `--locked` means unlocked. Requires Designer access; the server enforces locking rules.
+The ID, name, connection, and source reference are required. Omitted filter and description clear those values; omitted `--locked` means unlocked and omitted `--mes-reportable` means not MES-reportable. Requires Designer access; the server enforces locking rules.

 #### `template native-alarm-source remove`

@@ -621,7 +622,7 @@ Override an inherited native alarm source binding for a single instance (upsert)
 options keep the inherited value.

 ```sh
-scadabridge --url <url> instance native-alarm-source set --instance-id <int> --source <string> [--connection <string>] [--source-ref <string>] [--filter <string>]
+scadabridge --url <url> instance native-alarm-source set --instance-id <int> --source <string> [--connection <string>] [--source-ref <string>] [--filter <string>] [--mes-reportable <true|false>]
 ```

 | Option | Required | Description |
@@ -631,6 +632,7 @@ scadabridge --url <url> instance native-alarm-source set --instance-id <int> --s
 | `--connection` | no | Connection name override (blank = inherited) |
 | `--source-ref` | no | Source reference override (blank = inherited) |
 | `--filter` | no | Condition filter override (blank = inherited) |
+| `--mes-reportable` | no | MES-reportable override for the binding: `true` or `false` (omit = inherited) |

 #### `instance native-alarm-source clear`

@@ -653,6 +653,7 @@
                                <th style="width: 220px;">Connection override</th>
                                <th style="width: 220px;">Source reference override</th>
                                <th style="width: 170px;">Filter override</th>
+                                <th style="width: 150px;">MES reportable</th>
                                <th style="width: 140px;">Actions</th>
                            </tr>
                        </thead>
@@ -697,6 +698,15 @@
                                               value="@(_nasFilterEdit.GetValueOrDefault(src.Name) ?? "")"
                                               @onchange="e => _nasFilterEdit[src.Name] = string.IsNullOrWhiteSpace((string?)e.Value) ? null : ((string?)e.Value)!.Trim()" />
                                    </td>
+                                    <td>
+                                        <select class="form-select form-select-sm" data-test="@($"nas-mes-{src.Name}")"
+                                                value="@MesText(_nasMesEdit.GetValueOrDefault(src.Name))"
+                                                @onchange="e => _nasMesEdit[src.Name] = ParseMes((string?)e.Value)">
+                                            <option value="" selected="@(_nasMesEdit.GetValueOrDefault(src.Name) == null)">Inherited (@(src.IsMesReportable ? "reportable" : "not reportable"))</option>
+                                            <option value="true" selected="@(_nasMesEdit.GetValueOrDefault(src.Name) == true)">Reportable</option>
+                                            <option value="false" selected="@(_nasMesEdit.GetValueOrDefault(src.Name) == false)">Not reportable</option>
+                                        </select>
+                                    </td>
                                    <td>
                                        <div class="btn-group btn-group-sm" role="group" aria-label="@($"Override actions for {src.Name}")">
                                            <button class="btn btn-success"
@@ -843,6 +853,9 @@
    private Dictionary<string, string?> _nasConnEdit = new();
    private Dictionary<string, string?> _nasRefEdit = new();
    private Dictionary<string, string?> _nasFilterEdit = new();
+    private Dictionary<string, bool?> _nasMesEdit = new();
+    private static string MesText(bool? v) => v switch { true => "true", false => "false", _ => "" };
+    private static bool? ParseMes(string? v) => v switch { "true" => true, "false" => false, _ => null };

    // Native-alarm-source CSV bulk-import result summary — same shape as the
    // attribute importer's (_csvImport*) trio. Null until an import runs.
@@ -971,6 +984,7 @@
                _nasConnEdit[s.Name] = ovr?.ConnectionNameOverride;
                _nasRefEdit[s.Name] = ovr?.SourceReferenceOverride;
                _nasFilterEdit[s.Name] = ovr?.ConditionFilterOverride;
+                _nasMesEdit[s.Name] = ovr?.IsMesReportableOverride;
            }

            _flattenedAttributes = await BuildFlattenedAttributesAsync();
@@ -1751,16 +1765,17 @@
            var conn = Blank(_nasConnEdit.GetValueOrDefault(sourceName));
            var sref = Blank(_nasRefEdit.GetValueOrDefault(sourceName));
            var filt = Blank(_nasFilterEdit.GetValueOrDefault(sourceName));
+            var mes = _nasMesEdit.GetValueOrDefault(sourceName);

            // All blank → no override; clear any existing row.
-            if (conn == null && sref == null && filt == null)
+            if (conn == null && sref == null && filt == null && mes == null)
            {
                await ClearNativeOverrideCore(sourceName);
                _toast.ShowSuccess($"No override on '{sourceName}' (inherited).");
                return;
            }

-            await UpsertNativeOverrideCore(sourceName, conn, sref, filt);
+            await UpsertNativeOverrideCore(sourceName, conn, sref, filt, mes);
            _toast.ShowSuccess($"Saved native alarm source override on '{sourceName}'.");
        }
        catch (Exception ex)
@@ -1791,15 +1806,16 @@
    /// so a bulk import commits the whole batch in one go. Shared by the inline Save
    /// and the CSV import so both take the identical persistence path.
    /// </summary>
-    private async Task UpsertNativeOverrideCore(string sourceName, string? conn, string? sref, string? filt)
+    private async Task UpsertNativeOverrideCore(string sourceName, string? conn, string? sref, string? filt, bool? mes = null)
    {
-        var result = await MutationServices.ExecuteConfigurationAsync(new SetInstanceNativeAlarmSourceOverrideCommand(Id, sourceName, conn, sref, filt));
+        var result = await MutationServices.ExecuteConfigurationAsync(new SetInstanceNativeAlarmSourceOverrideCommand(Id, sourceName, conn, sref, filt, mes));
        if (result is InstanceNativeAlarmSourceOverride saved) _existingNativeOverrides[sourceName] = saved;

        // Keep the inline editor showing what was just persisted.
        _nasConnEdit[sourceName] = conn;
        _nasRefEdit[sourceName] = sref;
        _nasFilterEdit[sourceName] = filt;
+        _nasMesEdit[sourceName] = mes;
    }

    private async Task ClearNativeOverrideCore(string sourceName)
@@ -1809,6 +1825,7 @@
        _nasConnEdit[sourceName] = null;
        _nasRefEdit[sourceName] = null;
        _nasFilterEdit[sourceName] = null;
+        _nasMesEdit[sourceName] = null;
    }

    private static string? Blank(string? v) => string.IsNullOrWhiteSpace(v) ? null : v.Trim();
@@ -1868,7 +1885,8 @@
            }

            await MutationServices.ExecuteConfigurationAsync(new SetInstanceNativeAlarmSourceOverridesCommand(Id,
-                outcome.Rows.Select(row => new NativeAlarmSourceOverrideEntry(row.SourceName, row.Connection, row.SourceReference, row.Filter)).ToList()));
+                outcome.Rows.Select(row => new NativeAlarmSourceOverrideEntry(row.SourceName, row.Connection, row.SourceReference, row.Filter,
+                    _existingNativeOverrides.GetValueOrDefault(row.SourceName)?.IsMesReportableOverride)).ToList()));
            await OnInitializedAsync();

            _nasCsvImportSucceeded = true;
@@ -1041,7 +1041,7 @@
        => ShowNativeSourceDialogAsync(
            editId: null,
            new TemplateNativeAlarmSourceDialog.NativeSourceDraft(
-                string.Empty, string.Empty, string.Empty, null, null, false));
+                string.Empty, string.Empty, string.Empty, null, null, false, false));

    private Task OpenEditNativeSourceDialog(TemplateNativeAlarmSource src)
        => ShowNativeSourceDialogAsync(
@@ -1052,7 +1052,8 @@
                src.SourceReference,
                src.ConditionFilter,
                src.Description,
-                src.IsLocked));
+                src.IsLocked,
+                src.IsMesReportable));

    private async Task ShowNativeSourceDialogAsync(
        int? editId,
@@ -1070,6 +1071,7 @@
                                                     InitialFilter="@initial.ConditionFilter"
                                                     InitialDescription="@initial.Description"
                                                     InitialIsLocked="initial.IsLocked"
+                                                     InitialIsMesReportable="initial.IsMesReportable"
                                                     AlarmCapableConnections="connections"
                                                     OnSaveAsync="d => SaveNativeSourceDraftAsync(editId, d)" />);

@@ -1097,7 +1099,8 @@
            await MutationServices.ExecuteConfigurationAsync(new UpdateTemplateNativeAlarmSourceCommand(id, existing.Name,
                draft.ConnectionName.Trim(), draft.SourceReference.Trim(),
                string.IsNullOrWhiteSpace(draft.ConditionFilter) ? null : draft.ConditionFilter.Trim(),
-                string.IsNullOrWhiteSpace(draft.Description) ? null : draft.Description.Trim(), draft.IsLocked));
+                string.IsNullOrWhiteSpace(draft.Description) ? null : draft.Description.Trim(), draft.IsLocked,
+                draft.IsMesReportable));
            _toast.ShowSuccess($"Native alarm source '{existing.Name}' updated.");
            return null;
        }
@@ -1114,10 +1117,12 @@
            SourceReference = draft.SourceReference.Trim(),
            ConditionFilter = string.IsNullOrWhiteSpace(draft.ConditionFilter) ? null : draft.ConditionFilter.Trim(),
            Description = string.IsNullOrWhiteSpace(draft.Description) ? null : draft.Description.Trim(),
-            IsLocked = draft.IsLocked
+            IsLocked = draft.IsLocked,
+            IsMesReportable = draft.IsMesReportable
        };
        await MutationServices.ExecuteConfigurationAsync(new AddTemplateNativeAlarmSourceCommand(source.TemplateId, source.Name,
-            source.ConnectionName, source.SourceReference, source.ConditionFilter, source.Description, source.IsLocked));
+            source.ConnectionName, source.SourceReference, source.ConditionFilter, source.Description, source.IsLocked,
+            source.IsMesReportable));
        _toast.ShowSuccess($"Native alarm source '{source.Name}' added.");
        return null;
    }
@@ -51,6 +51,12 @@
            <label class="form-check-label" for="nasLocked">Locked</label>
        </div>
    </div>
+    <div class="col-12">
+        <div class="form-check">
+            <input class="form-check-input" type="checkbox" @bind="_nasIsMesReportable" id="nasMesReportable" />
+            <label class="form-check-label" for="nasMesReportable">MES reportable (every condition under this source)</label>
+        </div>
+    </div>
    @if (_error != null)
    {
        <div class="col-12"><div class="text-danger small" data-test="nas-form-error">@_error</div></div>
@@ -77,6 +83,7 @@
    [Parameter] public string? InitialFilter { get; set; }
    [Parameter] public string? InitialDescription { get; set; }
    [Parameter] public bool InitialIsLocked { get; set; }
+    [Parameter] public bool InitialIsMesReportable { get; set; }

    /// <summary>Connections whose protocol can surface native alarms (OPC UA / MxGateway).</summary>
    [Parameter] public IReadOnlyList<DataConnection> AlarmCapableConnections { get; set; }
@@ -94,6 +101,7 @@
    private string? _nasFilter;
    private string? _nasDescription;
    private bool _nasIsLocked;
+    private bool _nasIsMesReportable;
    private string? _error;
    private bool _busy;

@@ -105,6 +113,7 @@
        _nasFilter = InitialFilter;
        _nasDescription = InitialDescription;
        _nasIsLocked = InitialIsLocked;
+        _nasIsMesReportable = InitialIsMesReportable;
    }

    private async Task Submit()
@@ -121,7 +130,8 @@
                _nasSourceRef,
                _nasFilter,
                _nasDescription,
-                _nasIsLocked);
+                _nasIsLocked,
+                _nasIsMesReportable);

            var error = await OnSaveAsync(draft);
            if (error == null)
@@ -146,11 +156,13 @@
    /// <param name="ConditionFilter">Optional condition filter; blank mirrors every condition.</param>
    /// <param name="Description">Optional free-text description.</param>
    /// <param name="IsLocked">Whether instances may override the binding.</param>
+    /// <param name="IsMesReportable">Whether every condition under the source is MES-reportable.</param>
    public sealed record NativeSourceDraft(
        string Name,
        string ConnectionName,
        string SourceReference,
        string? ConditionFilter,
        string? Description,
-        bool IsLocked);
+        bool IsLocked,
+        bool IsMesReportable = false);
 }
@@ -24,6 +24,8 @@ public class InstanceNativeAlarmSourceOverride
    public string? SourceReferenceOverride { get; set; }
    /// <summary>Overrides the condition filter when set; null = keep inherited.</summary>
    public string? ConditionFilterOverride { get; set; }
+    /// <summary>Overrides the binding's <c>IsMesReportable</c> flag when set; null = keep inherited.</summary>
+    public bool? IsMesReportableOverride { get; set; }

    /// <summary>Initializes a new override for the specified source binding.</summary>
    /// <param name="sourceCanonicalName">Canonical name of the source to override.</param>
@@ -23,6 +23,13 @@ public class TemplateNativeAlarmSource
    public string SourceReference { get; set; } = string.Empty;
    /// <summary>Optional condition filter; null = mirror all conditions under the source.</summary>
    public string? ConditionFilter { get; set; }
+    /// <summary>
+    /// When true, every condition mirrored under this binding is MES-reportable
+    /// (<c>AlarmStateChanged.IsMesReportable</c> / <c>ScriptAlarm.IsMesReportable</c>). Additive to the
+    /// 900-999 severity-band convention, which still flags a condition on its own. Default false.
+    /// Overridable per instance via <c>InstanceNativeAlarmSourceOverride.IsMesReportableOverride</c>.
+    /// </summary>
+    public bool IsMesReportable { get; set; }
    /// <summary>When true, this binding cannot be overridden in derived templates.</summary>
    public bool IsLocked { get; set; }
    /// <summary>True when copied from a base template and not yet overridden on the derived template.</summary>
@@ -65,7 +65,8 @@ public record SetInstanceNativeAlarmSourceOverrideCommand(
    string SourceCanonicalName,
    string? ConnectionNameOverride,
    string? SourceReferenceOverride,
-    string? ConditionFilterOverride);
+    string? ConditionFilterOverride,
+    bool? IsMesReportableOverride = null);   // additive trailing optional; null = inherit the binding's flag

 public record DeleteInstanceNativeAlarmSourceOverrideCommand(
    int InstanceId,
@@ -83,7 +84,8 @@ public record NativeAlarmSourceOverrideEntry(
    string SourceCanonicalName,
    string? ConnectionNameOverride,
    string? SourceReferenceOverride,
-    string? ConditionFilterOverride);
+    string? ConditionFilterOverride,
+    bool? IsMesReportableOverride = null);

 /// <summary>
 /// Bulk, all-or-nothing apply of per-instance native-alarm-source overrides — the
@@ -49,8 +49,8 @@ public record AddTemplateAlarmCommand(int TemplateId, string Name, string Trigge
 public record UpdateTemplateAlarmCommand(int AlarmId, string Name, string TriggerType, int PriorityLevel, string? Description, string? TriggerConfiguration, bool IsLocked, bool IsMesReportable = false);
 public record DeleteTemplateAlarmCommand(int AlarmId);
 // Native alarm source bindings (read-only mirror of an OPC UA A&C / MxGateway source's alarms)
-public record AddTemplateNativeAlarmSourceCommand(int TemplateId, string Name, string ConnectionName, string SourceReference, string? ConditionFilter, string? Description, bool IsLocked);
-public record UpdateTemplateNativeAlarmSourceCommand(int NativeAlarmSourceId, string Name, string ConnectionName, string SourceReference, string? ConditionFilter, string? Description, bool IsLocked);
+public record AddTemplateNativeAlarmSourceCommand(int TemplateId, string Name, string ConnectionName, string SourceReference, string? ConditionFilter, string? Description, bool IsLocked, bool IsMesReportable = false);
+public record UpdateTemplateNativeAlarmSourceCommand(int NativeAlarmSourceId, string Name, string ConnectionName, string SourceReference, string? ConditionFilter, string? Description, bool IsLocked, bool IsMesReportable = false);
 public record DeleteTemplateNativeAlarmSourceCommand(int NativeAlarmSourceId);
 public record ListTemplateNativeAlarmSourcesCommand(int TemplateId);
 // MinTimeBetweenRuns/ExecutionTimeoutSeconds are additive trailing optionals (default null = "unset"):
@@ -116,8 +116,10 @@ public record AlarmStateChanged(
    /// <summary>
    /// True when the alarm's deployed configuration flags it as MES-reportable
    /// (<c>ResolvedAlarm.IsMesReportable</c>). Stamped by the Instance Actor on its alarm
-    /// snapshot and on every event it relays to the site stream; always false for native
-    /// conditions, which have no per-alarm config row. Carried to central on
+    /// snapshot and on every event it relays to the site stream. For a native condition it is
+    /// the binding-level flag (<c>ResolvedNativeAlarmSource.IsMesReportable</c>, Gitea #59), set by
+    /// the owning <c>NativeAlarmActor</c> — there is still no per-condition config row; the
+    /// 900-999 severity band remains an independent, additive signal. Carried to central on
    /// <c>AlarmStateUpdate</c> field 25 and <c>DebugAlarmStateDto</c> field 20 (Gitea #60);
    /// a pre-#60 site sends the proto3 default. Additive; default false.
    /// </summary>
@@ -160,6 +160,11 @@ public sealed record ResolvedNativeAlarmSource
    /// <summary>Gets the source of this binding: "Template", "Inherited", "Composed", or "Override".</summary>
    public string Source { get; init; } = "Template";
    /// <summary>
+    /// Gets whether every condition under this binding is MES-reportable (effective value after
+    /// the instance override). Additive to the 900-999 severity band.
+    /// </summary>
+    public bool IsMesReportable { get; init; }
+    /// <summary>
    /// Gets whether this native alarm source is locked at the template level. A locked
    /// source cannot be repointed by an instance override — mirrors the attribute/alarm
    /// lock semantics.
@@ -57,7 +57,7 @@ namespace ZB.MOM.WW.ScadaBridge.Commons.Types.Scripts;
 /// </param>
 /// <param name="IsMesReportable">
 /// True when the deployed configuration flags the alarm as MES-reportable (template
-/// checkbox or instance override). Always false for native conditions.
+/// checkbox or instance override). For native conditions it is the source binding's flag (Gitea #59).
 /// </param>
 public sealed record ScriptAlarm(
    string Name,
@@ -0,0 +1,39 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ZB.MOM.WW.ScadaBridge.ConfigurationDatabase.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddNativeAlarmSourceMesReportable : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "IsMesReportable",
+                table: "TemplateNativeAlarmSources",
+                type: "bit",
+                nullable: false,
+                defaultValue: false);
+
+            migrationBuilder.AddColumn<bool>(
+                name: "IsMesReportableOverride",
+                table: "InstanceNativeAlarmSourceOverrides",
+                type: "bit",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "IsMesReportable",
+                table: "TemplateNativeAlarmSources");
+
+            migrationBuilder.DropColumn(
+                name: "IsMesReportableOverride",
+                table: "InstanceNativeAlarmSourceOverrides");
+        }
+    }
+}
@@ -17,7 +17,7 @@ namespace ZB.MOM.WW.ScadaBridge.ConfigurationDatabase.Migrations
        {
 #pragma warning disable 612, 618
            modelBuilder
-                .HasAnnotation("ProductVersion", "10.0.7")
+                .HasAnnotation("ProductVersion", "10.0.13")
                .HasAnnotation("Relational:MaxIdentifierLength", 128);

            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
@@ -724,6 +724,9 @@ namespace ZB.MOM.WW.ScadaBridge.ConfigurationDatabase.Migrations
                    b.Property<int>("InstanceId")
                        .HasColumnType("int");

+                    b.Property<bool?>("IsMesReportableOverride")
+                        .HasColumnType("bit");
+
                    b.Property<string>("SourceCanonicalName")
                        .IsRequired()
                        .HasMaxLength(400)
@@ -1673,6 +1676,9 @@ namespace ZB.MOM.WW.ScadaBridge.ConfigurationDatabase.Migrations
                    b.Property<bool>("IsLocked")
                        .HasColumnType("bit");

+                    b.Property<bool>("IsMesReportable")
+                        .HasColumnType("bit");
+
                    b.Property<bool>("LockedInDerived")
                        .HasColumnType("bit");

@@ -1295,7 +1295,8 @@ public class ManagementActor : ReceiveActor
                InstanceId = cmd.InstanceId,
                ConnectionNameOverride = cmd.ConnectionNameOverride,
                SourceReferenceOverride = cmd.SourceReferenceOverride,
-                ConditionFilterOverride = cmd.ConditionFilterOverride
+                ConditionFilterOverride = cmd.ConditionFilterOverride,
+                IsMesReportableOverride = cmd.IsMesReportableOverride
            };
            await repo.AddInstanceNativeAlarmSourceOverrideAsync(ovr);
            await repo.SaveChangesAsync();
@@ -1305,6 +1306,7 @@ public class ManagementActor : ReceiveActor
        existing.ConnectionNameOverride = cmd.ConnectionNameOverride;
        existing.SourceReferenceOverride = cmd.SourceReferenceOverride;
        existing.ConditionFilterOverride = cmd.ConditionFilterOverride;
+        existing.IsMesReportableOverride = cmd.IsMesReportableOverride;
        await repo.UpdateInstanceNativeAlarmSourceOverrideAsync(existing);
        await repo.SaveChangesAsync();
        return existing;
@@ -1363,7 +1365,8 @@ public class ManagementActor : ReceiveActor
                    InstanceId = cmd.InstanceId,
                    ConnectionNameOverride = entry.ConnectionNameOverride,
                    SourceReferenceOverride = entry.SourceReferenceOverride,
-                    ConditionFilterOverride = entry.ConditionFilterOverride
+                    ConditionFilterOverride = entry.ConditionFilterOverride,
+                    IsMesReportableOverride = entry.IsMesReportableOverride
                };
                await repo.AddInstanceNativeAlarmSourceOverrideAsync(ovr);
                results.Add(ovr);
@@ -1373,6 +1376,7 @@ public class ManagementActor : ReceiveActor
                existing.ConnectionNameOverride = entry.ConnectionNameOverride;
                existing.SourceReferenceOverride = entry.SourceReferenceOverride;
                existing.ConditionFilterOverride = entry.ConditionFilterOverride;
+                existing.IsMesReportableOverride = entry.IsMesReportableOverride;
                await repo.UpdateInstanceNativeAlarmSourceOverrideAsync(existing);
                results.Add(existing);
            }
@@ -3441,7 +3445,8 @@ public class ManagementActor : ReceiveActor
            SourceReference = cmd.SourceReference,
            ConditionFilter = cmd.ConditionFilter,
            Description = cmd.Description,
-            IsLocked = cmd.IsLocked
+            IsLocked = cmd.IsLocked,
+            IsMesReportable = cmd.IsMesReportable
        };
        await repo.AddTemplateNativeAlarmSourceAsync(source);
        await repo.SaveChangesAsync();
@@ -3463,6 +3468,7 @@ public class ManagementActor : ReceiveActor
        source.ConditionFilter = cmd.ConditionFilter;
        source.Description = cmd.Description;
        source.IsLocked = cmd.IsLocked;
+        source.IsMesReportable = cmd.IsMesReportable;
        await repo.UpdateTemplateNativeAlarmSourceAsync(source);
        await repo.SaveChangesAsync();
        // Propagate the changed source to derived descendants.
@@ -59,9 +59,16 @@ public class InstanceActor : ReceiveActor
    /// children are created and read back in <see cref="BuildAlarmStatesSnapshot"/>, which
    /// is the single place the flag is stamped — so a fired alarm (served from the retained
    /// event) and an unfired one (served from the bare fallback projection) cannot drift.
-    /// Native conditions have no entry here and correctly resolve to false.
+    /// Native conditions have no entry here (their flag is the binding's, set by NativeAlarmActor).
    /// </summary>
    private readonly Dictionary<string, bool> _alarmMesReportable = new();
+
+    /// <summary>
+    /// Native binding canonical name → <c>ResolvedNativeAlarmSource.IsMesReportable</c> (Gitea #59),
+    /// used to stamp the quiet-binding placeholder rows. Live condition rows are stamped by the
+    /// <see cref="NativeAlarmActor"/> that owns the binding.
+    /// </summary>
+    private readonly Dictionary<string, bool> _nativeAlarmMesReportable = new();
    private readonly Dictionary<string, IActorRef> _scriptActors = new();
    private readonly Dictionary<string, IActorRef> _alarmActors = new();
    private readonly Dictionary<string, IActorRef> _nativeAlarmActors = new();
@@ -1775,6 +1782,7 @@ public class InstanceActor : ReceiveActor
            {
                Kind = _nativeAlarmKinds.GetValueOrDefault(binding, AlarmKind.NativeOpcUa),
                NativeSourceCanonicalName = binding,
+                IsMesReportable = _nativeAlarmMesReportable.GetValueOrDefault(binding),
                IsConfiguredPlaceholder = true
            });
        }
@@ -2250,6 +2258,7 @@ public class InstanceActor : ReceiveActor
            // Same kind handed to the NativeAlarmActor — used to stamp the
            // (cosmetic) kind badge on placeholder rows for quiet bindings.
            _nativeAlarmKinds[nativeSource.CanonicalName] = nativeKind;
+            _nativeAlarmMesReportable[nativeSource.CanonicalName] = nativeSource.IsMesReportable;
        }

        _logger.LogInformation(
@@ -496,6 +496,9 @@ public class NativeAlarmActor : ReceiveActor
            CurrentValue = t.CurrentValue,
            LimitValue = t.LimitValue,
            NativeSourceCanonicalName = _source.CanonicalName,
+            // Gitea #59: the binding-level flag ("every condition under this source is
+            // MES-reportable"). Additive to the 900-999 severity band the consumer applies.
+            IsMesReportable = _source.IsMesReportable,
            // MES alarm-status API §6.4: carried verbatim from the transition — the DCL
            // adapter already decided whether an ack instant applies (null while unacked,
            // cleared on re-raise), so the mirror never invents or suppresses one. A
@@ -151,6 +151,7 @@ public class DiffService
        a.ConnectionName == b.ConnectionName &&
        a.SourceReference == b.SourceReference &&
        a.ConditionFilter == b.ConditionFilter &&
+        a.IsMesReportable == b.IsMesReportable &&
        a.IsLocked == b.IsLocked;

    private static bool ScriptsEqual(ResolvedScript a, ResolvedScript b) =>
@@ -730,6 +730,7 @@ public class FlatteningService
                    ConnectionName = binding.ConnectionName,
                    SourceReference = binding.SourceReference,
                    ConditionFilter = binding.ConditionFilter,
+                    IsMesReportable = binding.IsMesReportable,
                    Source = source,
                    IsLocked = binding.IsLocked || lockedNames.Contains(binding.Name)
                };
@@ -832,6 +833,7 @@ public class FlatteningService
                ConnectionName = ovr.ConnectionNameOverride ?? existing.ConnectionName,
                SourceReference = ovr.SourceReferenceOverride ?? existing.SourceReference,
                ConditionFilter = ovr.ConditionFilterOverride ?? existing.ConditionFilter,
+                IsMesReportable = ovr.IsMesReportableOverride ?? existing.IsMesReportable,
                Source = "Override"
            };
        }
@@ -109,6 +109,8 @@ public class RevisionHashService
                        ConditionFilter = n.ConditionFilter,
                        ConnectionName = n.ConnectionName,
                        IsLocked = n.IsLocked,
+                        // true-only (null when false) so existing revision hashes are unchanged.
+                        IsMesReportable = n.IsMesReportable ? true : null,
                        SourceReference = n.SourceReference
                    })
                    .ToList()
@@ -296,6 +298,11 @@ public class RevisionHashService
        /// </summary>
        public bool IsLocked { get; init; }
        /// <summary>
+        /// MES-reportable binding flag; null when false (the serializer drops nulls), so
+        /// pre-existing configurations hash identically.
+        /// </summary>
+        public bool? IsMesReportable { get; init; }
+        /// <summary>
        /// The source reference (OPC UA SourceNode/notifier nodeId, or MxAccess object/area).
        /// </summary>
        public string SourceReference { get; init; } = string.Empty;
@@ -1176,6 +1176,7 @@ public class TemplateService
                ConnectionName = src.ConnectionName,
                SourceReference = src.SourceReference,
                ConditionFilter = src.ConditionFilter,
+                IsMesReportable = src.IsMesReportable,
                IsLocked = src.IsLocked,
                IsInherited = true,
                LockedInDerived = false,
@@ -1546,6 +1547,7 @@ public class TemplateService
                    ConnectionName = win.ConnectionName,
                    SourceReference = win.SourceReference,
                    ConditionFilter = win.ConditionFilter,
+                    IsMesReportable = win.IsMesReportable,
                    IsLocked = win.IsLocked,
                    IsInherited = true,
                    LockedInDerived = false,
@@ -1556,12 +1558,14 @@ public class TemplateService
                existing.ConnectionName != win.ConnectionName ||
                existing.SourceReference != win.SourceReference ||
                existing.ConditionFilter != win.ConditionFilter ||
+                existing.IsMesReportable != win.IsMesReportable ||
                existing.Description != win.Description ||
                existing.IsLocked != win.IsLocked))
            {
                existing.ConnectionName = win.ConnectionName;
                existing.SourceReference = win.SourceReference;
                existing.ConditionFilter = win.ConditionFilter;
+                existing.IsMesReportable = win.IsMesReportable;
                existing.Description = win.Description;
                existing.IsLocked = win.IsLocked;
                await _repository.UpdateTemplateNativeAlarmSourceAsync(existing, ct);
@@ -503,7 +503,8 @@ public sealed class ArtifactDiff
            i => i.SourceCanonicalName,
            (e, i) => e.ConnectionNameOverride == i.ConnectionNameOverride
                && e.SourceReferenceOverride == i.SourceReferenceOverride
-                && e.ConditionFilterOverride == i.ConditionFilterOverride,
+                && e.ConditionFilterOverride == i.ConditionFilterOverride
+                && e.IsMesReportableOverride == i.IsMesReportableOverride,
            "NativeAlarmSourceOverrides",
            changes);

@@ -2610,6 +2610,7 @@ public sealed class BundleImporter : IBundleImporter
                ConnectionName = n.ConnectionName,
                SourceReference = n.SourceReference,
                ConditionFilter = n.ConditionFilter,
+                IsMesReportable = n.IsMesReportable,
                IsLocked = n.IsLocked,
                IsInherited = n.IsInherited,
                LockedInDerived = n.LockedInDerived,
@@ -3020,6 +3021,7 @@ public sealed class BundleImporter : IBundleImporter
                current.ConnectionName = srcDto.ConnectionName;
                current.SourceReference = srcDto.SourceReference;
                current.ConditionFilter = srcDto.ConditionFilter;
+                current.IsMesReportable = srcDto.IsMesReportable;
                current.IsLocked = srcDto.IsLocked;
                current.IsInherited = srcDto.IsInherited;
                current.LockedInDerived = srcDto.LockedInDerived;
@@ -3038,6 +3040,7 @@ public sealed class BundleImporter : IBundleImporter
                        current.ConnectionName,
                        current.SourceReference,
                        current.ConditionFilter,
+                        current.IsMesReportable,
                        current.IsLocked,
                        current.IsInherited,
                        current.LockedInDerived,
@@ -3052,6 +3055,7 @@ public sealed class BundleImporter : IBundleImporter
                    ConnectionName = srcDto.ConnectionName,
                    SourceReference = srcDto.SourceReference,
                    ConditionFilter = srcDto.ConditionFilter,
+                    IsMesReportable = srcDto.IsMesReportable,
                    IsLocked = srcDto.IsLocked,
                    IsInherited = srcDto.IsInherited,
                    LockedInDerived = srcDto.LockedInDerived,
@@ -3071,6 +3075,7 @@ public sealed class BundleImporter : IBundleImporter
                        newSource.ConnectionName,
                        newSource.SourceReference,
                        newSource.ConditionFilter,
+                        newSource.IsMesReportable,
                        newSource.IsLocked,
                        newSource.IsInherited,
                        newSource.LockedInDerived,
@@ -4962,6 +4967,7 @@ public sealed class BundleImporter : IBundleImporter
                    o.ConnectionNameOverride, sourceSiteIdentifier, connectionMaps),
                SourceReferenceOverride = o.SourceReferenceOverride,
                ConditionFilterOverride = o.ConditionFilterOverride,
+                IsMesReportableOverride = o.IsMesReportableOverride,
            });
        }
        foreach (var b in dto.ConnectionBindings)
@@ -96,6 +96,7 @@ internal static class TemplateChildEquality
        && e.ConnectionName == i.ConnectionName
        && e.SourceReference == i.SourceReference
        && e.ConditionFilter == i.ConditionFilter
+        && e.IsMesReportable == i.IsMesReportable
        && e.IsLocked == i.IsLocked
        && e.IsInherited == i.IsInherited
        && e.LockedInDerived == i.LockedInDerived;
@@ -192,7 +192,9 @@ public sealed record TemplateNativeAlarmSourceDto(
    string? ConditionFilter,
    bool IsLocked,
    bool IsInherited,
-    bool LockedInDerived);
+    bool LockedInDerived,
+    // Additive trailing field: false on bundles written before it existed.
+    bool IsMesReportable = false);

 public sealed record TemplateAttributeDto(
    string Name,
@@ -407,7 +409,9 @@ public sealed record InstanceNativeAlarmSourceOverrideDto(
    string SourceCanonicalName,
    string? ConnectionNameOverride,
    string? SourceReferenceOverride,
-    string? ConditionFilterOverride);
+    string? ConditionFilterOverride,
+    // Additive trailing field: null ("keep inherited") on bundles written before it existed.
+    bool? IsMesReportableOverride = null);

 public sealed record InstanceConnectionBindingDto(
    string AttributeName,
@@ -104,7 +104,8 @@ public sealed class EntitySerializer
                        ConditionFilter: n.ConditionFilter,
                        IsLocked: n.IsLocked,
                        IsInherited: n.IsInherited,
-                        LockedInDerived: n.LockedInDerived)).ToList(),
+                        LockedInDerived: n.LockedInDerived,
+                        IsMesReportable: n.IsMesReportable)).ToList(),
                };
            }).ToList(),
            SharedScripts: aggregate.SharedScripts.Select(s => new SharedScriptDto(
@@ -292,7 +293,8 @@ public sealed class EntitySerializer
                    SourceCanonicalName: o.SourceCanonicalName,
                    ConnectionNameOverride: o.ConnectionNameOverride,
                    SourceReferenceOverride: o.SourceReferenceOverride,
-                    ConditionFilterOverride: o.ConditionFilterOverride)).ToList(),
+                    ConditionFilterOverride: o.ConditionFilterOverride,
+                    IsMesReportableOverride: o.IsMesReportableOverride)).ToList(),
                // Connection bindings reference their DataConnection by NAME — the
                // numeric DataConnectionId FK can't survive a cross-environment
                // bundle, so the importer resolves ConnectionName→target FK at
@@ -386,6 +388,7 @@ public sealed class EntitySerializer
                        IsLocked = n.IsLocked,
                        IsInherited = n.IsInherited,
                        LockedInDerived = n.LockedInDerived,
+                        IsMesReportable = n.IsMesReportable,
                    });
                }
                return t;
@@ -621,6 +624,7 @@ public sealed class EntitySerializer
                        ConnectionNameOverride = o.ConnectionNameOverride,
                        SourceReferenceOverride = o.SourceReferenceOverride,
                        ConditionFilterOverride = o.ConditionFilterOverride,
+                        IsMesReportableOverride = o.IsMesReportableOverride,
                    });
                }
                foreach (var b in dto.ConnectionBindings)
@@ -33,8 +33,8 @@ public class EditingParityTests
    [InlineData("template resolved-members --id 12", "GetResolvedTemplateMembers", "{\"templateId\":12}")]
    [InlineData("template move --id 12 --folder-id 3", "MoveTemplateToFolder", "{\"templateId\":12,\"newFolderId\":3}")]
    [InlineData("template move --id 12", "MoveTemplateToFolder", "{\"templateId\":12,\"newFolderId\":null}")]
-    [InlineData("template native-alarm-source update --id 9 --name Pressure --connection OPC --source-ref ns=2;s=Source --filter Active --description Updated --locked", "UpdateTemplateNativeAlarmSource", "{\"nativeAlarmSourceId\":9,\"name\":\"Pressure\",\"connectionName\":\"OPC\",\"sourceReference\":\"ns=2;s=Source\",\"conditionFilter\":\"Active\",\"description\":\"Updated\",\"isLocked\":true}")]
-    [InlineData("template native-alarm-source update --id 9 --name Pressure --connection OPC --source-ref ns=2;s=Source", "UpdateTemplateNativeAlarmSource", "{\"nativeAlarmSourceId\":9,\"name\":\"Pressure\",\"connectionName\":\"OPC\",\"sourceReference\":\"ns=2;s=Source\",\"conditionFilter\":null,\"description\":null,\"isLocked\":false}")]
+    [InlineData("template native-alarm-source update --id 9 --name Pressure --connection OPC --source-ref ns=2;s=Source --filter Active --description Updated --locked --mes-reportable", "UpdateTemplateNativeAlarmSource", "{\"nativeAlarmSourceId\":9,\"name\":\"Pressure\",\"connectionName\":\"OPC\",\"sourceReference\":\"ns=2;s=Source\",\"conditionFilter\":\"Active\",\"description\":\"Updated\",\"isLocked\":true,\"isMesReportable\":true}")]
+    [InlineData("template native-alarm-source update --id 9 --name Pressure --connection OPC --source-ref ns=2;s=Source", "UpdateTemplateNativeAlarmSource", "{\"nativeAlarmSourceId\":9,\"name\":\"Pressure\",\"connectionName\":\"OPC\",\"sourceReference\":\"ns=2;s=Source\",\"conditionFilter\":null,\"description\":null,\"isLocked\":false,\"isMesReportable\":false}")]
    [InlineData("instance attribute-override delete --instance-id 6 --attribute Module.Value", "DeleteInstanceAttributeOverride", "{\"instanceId\":6,\"attributeName\":\"Module.Value\"}")]
    [InlineData("instance native-alarm-source list --instance-id 6", "ListInstanceNativeAlarmSourceOverrides", "{\"instanceId\":6}")]
    [InlineData("instance alarm-override list --instance-id 6", "ListInstanceAlarmOverrides", "{\"instanceId\":6}")]
@@ -165,6 +165,36 @@ public class SchemaConfigurationTests : IDisposable
        Assert.True((await _context.TemplateAlarms.SingleAsync(a => a.Id == alarm.Id)).IsMesReportable);
        Assert.False((await _context.InstanceAlarmOverrides.SingleAsync(o => o.Id == ovr.Id)).IsMesReportableOverride);
    }
+
+    // Gitea #59: per-binding flag on native alarm sources. Backed on SQL Server by the
+    // AddNativeAlarmSourceMesReportable migration; pinned here on the model/persist path.
+    /// <summary>Verifies that native alarm sources and their overrides persist the MES-reportable flags.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
+    [Fact]
+    public async Task NativeAlarmSource_And_Override_PersistMesReportableFlags()
+    {
+        var site = new Site("Site59", "S-059");
+        var template = new Template("MesNativeT1");
+        _context.Sites.Add(site);
+        _context.Templates.Add(template);
+        await _context.SaveChangesAsync();
+
+        var instance = new Instance("MesNativeInst1") { SiteId = site.Id, TemplateId = template.Id };
+        _context.Instances.Add(instance);
+        await _context.SaveChangesAsync();
+
+        var src = new TemplateNativeAlarmSource("Pressure")
+        { TemplateId = template.Id, ConnectionName = "Opc", SourceReference = "ns=2;s=P", IsMesReportable = true };
+        var ovr = new InstanceNativeAlarmSourceOverride("Pressure")
+        { InstanceId = instance.Id, IsMesReportableOverride = false };
+        _context.Add(src);
+        _context.Add(ovr);
+        await _context.SaveChangesAsync();
+        _context.ChangeTracker.Clear();
+
+        Assert.True((await _context.Set<TemplateNativeAlarmSource>().SingleAsync(a => a.Id == src.Id)).IsMesReportable);
+        Assert.False((await _context.Set<InstanceNativeAlarmSourceOverride>().SingleAsync(o => o.Id == ovr.Id)).IsMesReportableOverride);
+    }
 }

 public class SplitQueryBehaviourTests : IDisposable
@@ -4706,6 +4706,37 @@ public class ManagementActorTests : TestKit, IDisposable
        _templateRepo.ReceivedWithAnyArgs(1).SaveChangesAsync(default);
    }

+    /// <summary>Gitea #59: the instance override command carries IsMesReportableOverride onto the persisted row.</summary>
+    [Fact]
+    public void SetInstanceNativeAlarmSourceOverride_CarriesIsMesReportableOverride()
+    {
+        var pipeline = Substitute.For<IFlatteningPipeline>();
+        var flattened = new FlattenedConfiguration
+        {
+            NativeAlarmSources = new List<ResolvedNativeAlarmSource>
+            {
+                new() { CanonicalName = "Pressure", IsLocked = false, Source = "Template" }
+            }
+        };
+        pipeline.FlattenAndValidateAsync(1, Arg.Any<CancellationToken>(), Arg.Any<bool>())
+            .Returns(Result<FlatteningPipelineResult>.Success(
+                new FlatteningPipelineResult(flattened, "hash", ValidationResult.Success())));
+        _services.AddScoped(_ => pipeline);
+
+        InstanceNativeAlarmSourceOverride? added = null;
+        _templateRepo
+            .When(r => r.AddInstanceNativeAlarmSourceOverrideAsync(Arg.Any<InstanceNativeAlarmSourceOverride>(), Arg.Any<CancellationToken>()))
+            .Do(ci => added = ci.Arg<InstanceNativeAlarmSourceOverride>());
+
+        CreateActor().Tell(Envelope(
+            new SetInstanceNativeAlarmSourceOverrideCommand(1, "Pressure", null, null, null, IsMesReportableOverride: true),
+            "Deployer"));
+
+        ExpectMsg<ManagementSuccess>(TimeSpan.FromSeconds(5));
+        Assert.NotNull(added);
+        Assert.True(added!.IsMesReportableOverride);
+    }
+
    /// <summary>Verifies that set instance native alarm source override, when with design role, returns unauthorized.</summary>
    [Fact]
    public void SetInstanceNativeAlarmSourceOverride_WithDesignRole_ReturnsUnauthorized()
@@ -50,6 +50,25 @@ public class NativeAlarmSourceNameValidationTests : TestKit
        _repo.DidNotReceive().AddTemplateNativeAlarmSourceAsync(Arg.Any<TemplateNativeAlarmSource>(), Arg.Any<CancellationToken>());
    }

+    /// <summary>Gitea #59: the update command carries IsMesReportable onto the persisted binding.</summary>
+    [Fact]
+    public void Update_CarriesIsMesReportable()
+    {
+        TemplateNativeAlarmSource? updated = null;
+        _repo.When(r => r.UpdateTemplateNativeAlarmSourceAsync(Arg.Any<TemplateNativeAlarmSource>(), Arg.Any<CancellationToken>()))
+            .Do(ci => updated = ci.Arg<TemplateNativeAlarmSource>());
+        _services.AddScoped<ZB.MOM.WW.ScadaBridge.TemplateEngine.TemplateService>();
+
+        CreateActor().Tell(Designer(new UpdateTemplateNativeAlarmSourceCommand(
+            4, "Pressure", "Opc", "ns=2;s=T01", null, null, false, IsMesReportable: true)));
+
+        // The reconcile that follows needs TemplateService collaborators this harness does not
+        // wire, so only the persisted binding is asserted (the Update call precedes the reconcile).
+        ExpectMsg<object>(TimeSpan.FromSeconds(5));
+        Assert.NotNull(updated);
+        Assert.True(updated!.IsMesReportable);
+    }
+
    /// <summary>Renaming a source to an illegal actor name is rejected before any write.</summary>
    [Fact]
    public void Update_RenameToInvalidActorName_IsRejected()
@@ -51,7 +51,7 @@ public class InstanceActorNativeAlarmTests : TestKit, IDisposable
            NullLogger<InstanceActor>.Instance,
            dclManager)));

-    private static FlattenedConfiguration ConfigWithNativeSource(string instanceName) => new()
+    private static FlattenedConfiguration ConfigWithNativeSource(string instanceName, bool mesReportable = false) => new()
    {
        InstanceUniqueName = instanceName,
        NativeAlarmSources =
@@ -60,7 +60,8 @@ public class InstanceActorNativeAlarmTests : TestKit, IDisposable
            {
                CanonicalName = "Pressure",
                ConnectionName = "Opc",
-                SourceReference = "ns=2;s=T01"
+                SourceReference = "ns=2;s=T01",
+                IsMesReportable = mesReportable
            }
        ]
    };
@@ -100,6 +101,22 @@ public class InstanceActorNativeAlarmTests : TestKit, IDisposable
            a.SourceReference == "T01.Hi" && a.Kind == AlarmKind.NativeOpcUa && a.Condition.Severity == 800);
    }

+    /// <summary>Gitea #59: the quiet-binding placeholder row carries the binding's MES flag.</summary>
+    [Theory]
+    [InlineData(true)]
+    [InlineData(false)]
+    public void Snapshot_QuietNativeBinding_PlaceholderCarriesBindingMesFlag(bool flag)
+    {
+        var dcl = CreateTestProbe();
+        var actor = CreateInstanceActorWithDcl("inst", ConfigWithNativeSource("inst", flag), dcl.Ref);
+        dcl.ExpectMsg<SubscribeAlarmsRequest>();
+
+        actor.Tell(new SubscribeDebugViewRequest("inst", "c"));
+        var snap = ExpectMsg<DebugViewSnapshot>();
+
+        Assert.Equal(flag, Assert.Single(snap.AlarmStates, a => a.IsConfiguredPlaceholder).IsMesReportable);
+    }
+
    /// <summary>Verifies that a quiet native binding emits a placeholder in the snapshot.</summary>
    [Fact]
    public void Snapshot_QuietNativeBinding_EmitsPlaceholder()
@@ -36,11 +36,12 @@ public class NativeAlarmActorTests : TestKit, IDisposable
        _storage.InitializeAsync().GetAwaiter().GetResult();
    }

-    private static ResolvedNativeAlarmSource Source() => new()
+    private static ResolvedNativeAlarmSource Source(bool mesReportable = false) => new()
    {
        CanonicalName = "Pressure",
        ConnectionName = "Opc",
-        SourceReference = "ns=2;s=T01"
+        SourceReference = "ns=2;s=T01",
+        IsMesReportable = mesReportable
    };

    private static NativeAlarmTransition Transition(
@@ -48,6 +49,11 @@ public class NativeAlarmActorTests : TestKit, IDisposable
        new(sourceRef, "T01", "AnalogLimit.Hi", kind, condition,
            "Process", "hi", "hi", "", "", null, time ?? DateTimeOffset.UtcNow, "92", "90");

+    private IActorRef SpawnMes(IActorRef instanceActor, IActorRef dclManager, bool mesReportable) =>
+        ActorOf(Props.Create(() => new NativeAlarmActor(
+            Source(mesReportable), "inst", instanceActor, dclManager, _storage, _options,
+            NullLogger<NativeAlarmActor>.Instance, AlarmKind.NativeOpcUa, null)));
+
    private IActorRef Spawn(IActorRef instanceActor, IActorRef dclManager, IServiceProvider? serviceProvider = null) =>
        Spawn(instanceActor, dclManager, _options, serviceProvider);

@@ -157,6 +163,25 @@ public class NativeAlarmActorTests : TestKit, IDisposable
        Assert.Equal("Pressure", emitted.NativeSourceCanonicalName);
    }

+    /// <summary>Gitea #59: a binding flagged MES-reportable stamps every condition it mirrors; an unflagged one does not.</summary>
+    [Theory]
+    [InlineData(true)]
+    [InlineData(false)]
+    public void Raise_StampsIsMesReportable_FromBindingFlag(bool bindingFlag)
+    {
+        var instance = CreateTestProbe();
+        var dcl = CreateTestProbe();
+        var actor = SpawnMes(instance.Ref, dcl.Ref, bindingFlag);
+        dcl.ExpectMsg<SubscribeAlarmsRequest>();
+
+        actor.Tell(new NativeAlarmTransitionUpdate("Opc", Transition(
+            "T01.Hi", AlarmTransitionKind.Raise,
+            // Severity 100 is OUTSIDE the 900-999 band, so only the binding flag can set it.
+            new AlarmConditionState(true, false, null, AlarmShelveState.Unshelved, false, 100))));
+
+        Assert.Equal(bindingFlag, instance.ExpectMsg<AlarmStateChanged>().IsMesReportable);
+    }
+
    /// <summary>Verifies that a snapshot completing with a missing prior alarm emits a return to normal.</summary>
    [Fact]
    public void SnapshotComplete_WithMissingPriorAlarm_EmitsReturnToNormal()
@@ -952,6 +952,31 @@ public class FlatteningServiceTests
        Assert.Equal("Override", result.Value.NativeAlarmSources[0].Source);
    }

+    /// <summary>Gitea #59: the binding flag flattens from the template and a tri-state instance override wins (null inherits).</summary>
+    [Theory]
+    [InlineData(true, null, true)]
+    [InlineData(false, null, false)]
+    [InlineData(false, true, true)]
+    [InlineData(true, false, false)]
+    public void Flatten_NativeAlarmSource_IsMesReportable_TemplateFlagAndOverride(bool templateFlag, bool? ovr, bool expected)
+    {
+        var template = CreateTemplate(1, "Base");
+        template.NativeAlarmSources.Add(new TemplateNativeAlarmSource("Pressure")
+        { ConnectionName = "Opc", SourceReference = "ns=2;s=P1", IsMesReportable = templateFlag });
+        var instance = CreateInstance();
+        if (ovr.HasValue)
+            instance.NativeAlarmSourceOverrides.Add(new InstanceNativeAlarmSourceOverride("Pressure")
+            { IsMesReportableOverride = ovr });
+
+        var result = _sut.Flatten(instance, [template],
+            new Dictionary<int, IReadOnlyList<TemplateComposition>>(),
+            new Dictionary<int, IReadOnlyList<Template>>(),
+            new Dictionary<int, DataConnection>());
+
+        Assert.True(result.IsSuccess);
+        Assert.Equal(expected, result.Value.NativeAlarmSources[0].IsMesReportable);
+    }
+
    /// <summary>Verifies that a locked native alarm source ignores an instance override.</summary>
    [Fact]
    public void Flatten_LockedNativeAlarmSource_IgnoresInstanceOverride()
@@ -413,6 +413,29 @@ public class RevisionHashServiceTests
        Assert.NotEqual(_sut.ComputeHash(configBefore), _sut.ComputeHash(configAfter));
    }

+    /// <summary>Gitea #59: the binding's MES-reportable flag participates in the hash; false hashes as before the field existed.</summary>
+    [Fact]
+    public void ComputeHash_NativeAlarmSourceIsMesReportableChange_ChangesHash()
+    {
+        var baseSource = new ResolvedNativeAlarmSource
+        {
+            CanonicalName = "Boiler.Alarms",
+            ConnectionName = "plc1",
+            SourceReference = "ns=2;s=Boiler"
+        };
+        var configFalse = new FlattenedConfiguration
+        {
+            InstanceUniqueName = "Instance1", TemplateId = 1, SiteId = 1,
+            NativeAlarmSources = [baseSource]
+        };
+        var configTrue = configFalse with { NativeAlarmSources = [baseSource with { IsMesReportable = true }] };
+
+        Assert.NotEqual(_sut.ComputeHash(configFalse), _sut.ComputeHash(configTrue));
+        // false is omitted from the canonical JSON, so adding the field cannot invalidate stored hashes.
+        Assert.Equal(_sut.ComputeHash(configFalse),
+            _sut.ComputeHash(configFalse with { NativeAlarmSources = [baseSource with { IsMesReportable = false }] }));
+    }
+
    /// <summary>Verifies that changing a native alarm source's locked flag changes the hash.</summary>
    [Fact]
    public void ComputeHash_NativeAlarmSourceIsLockedChange_ChangesHash()
@@ -227,6 +227,7 @@ public sealed class EntitySerializerTests
            IsLocked = true,
            IsInherited = true,
            LockedInDerived = true,
+            IsMesReportable = true,
        });

        var aggregate = MakeEmptyAggregate() with { Templates = new[] { basic } };
@@ -242,6 +243,7 @@ public sealed class EntitySerializerTests
        Assert.True(dtoSrc.IsLocked);
        Assert.True(dtoSrc.IsInherited);
        Assert.True(dtoSrc.LockedInDerived);
+        Assert.True(dtoSrc.IsMesReportable);

        var rtSrc = Assert.Single(Assert.Single(sut.FromBundleContent(dto).Templates).NativeAlarmSources);
        Assert.Equal("Boiler", rtSrc.Name);
@@ -252,6 +254,27 @@ public sealed class EntitySerializerTests
        Assert.True(rtSrc.IsLocked);
        Assert.True(rtSrc.IsInherited);
        Assert.True(rtSrc.LockedInDerived);
+        Assert.True(rtSrc.IsMesReportable);
+    }
+
+    /// <summary>Gitea #59: an instance native-source override round-trips its tri-state MES flag.</summary>
+    [Theory]
+    [InlineData(true)]
+    [InlineData(false)]
+    [InlineData(null)]
+    public void Roundtrip_instance_NativeAlarmSourceOverride_preserves_IsMesReportableOverride(bool? flag)
+    {
+        var inst = new Instance("I1") { Id = 1, TemplateId = 1, SiteId = 1 };
+        inst.NativeAlarmSourceOverrides.Add(new InstanceNativeAlarmSourceOverride("Boiler")
+        { InstanceId = 1, IsMesReportableOverride = flag });
+        var aggregate = MakeEmptyAggregate() with { Instances = new[] { inst } };
+
+        var sut = new EntitySerializer();
+        var dto = sut.ToBundleContent(aggregate);
+        Assert.Equal(flag, Assert.Single(Assert.Single(dto.Instances).NativeAlarmSourceOverrides).IsMesReportableOverride);
+
+        var rt = Assert.Single(sut.FromBundleContent(dto).Instances);
+        Assert.Equal(flag, Assert.Single(rt.NativeAlarmSourceOverrides).IsMesReportableOverride);
    }

    /// <summary>Verifies that old-form bundle JSON without the locked-in-derived field deserializes it as false.</summary>