diff --git a/.clinerules/AGENTS.md b/.clinerules/AGENTS.md
index a9b707e9..2f9599df 100644
--- a/.clinerules/AGENTS.md
+++ b/.clinerules/AGENTS.md
@@ -251,3 +251,6 @@ When creating a new indicator, you are **DONE** only when:
 * **Math**: Use `System.Math` or `System.Numerics`.
 * **Root Namespace**: `QuanTAlib`.
 * **Patterns & Decisions**: When designing, refactoring, or fixing indicators or tests, first query `qdrant.mcp` for stored QuanTAlib patterns, architectural decisions, and benchmarks, and align new work with those references unless there is a documented reason to diverge.
+* **Event Flow Pattern (Commit d7dbd70)**: For `ITValuePublisher`-based indicators, subscribe directly with `source.Pub += Handle;` in constructors instead of storing `source` or delegate fields solely for subscription; rely on struct-based event args (e.g., `TBarEventArgs`, `TValueEventArgs`) and, when Meziantou MA0046 flags the non-EventArgs signature, suppress it locally with a targeted pragma and comment explaining the performance trade-off.
+* **SoA Backing Storage (Commit d7dbd70)**: Core series types (`TSeries`, `TBarSeries`) intentionally use concrete `List<T>` fields to support SoA layout and `CollectionsMarshal.AsSpan`; when analyzers suggest collection abstractions (MA0016), suppress them narrowly around those fields, as this is a deliberate performance design.
+* **Argument Validation (Commit d7dbd70)**: All `Calculate`/`Batch` and span-based APIs must use `ArgumentException` (or derived) overloads that include the offending parameter name (e.g., `nameof(output)` or `nameof(sourceY)`) for length and range checks, matching the MA0015-compliant pattern adopted across indicators.
diff --git a/.clinerules/MODELS.md b/.clinerules/MODELS.md
index 3ca4fb01..79f94222 100644
--- a/.clinerules/MODELS.md
+++ b/.clinerules/MODELS.md
@@ -72,6 +72,8 @@ These tests compare the indicator's output against established external librarie
 - **Compare against Python (pandas-ta/talib)**: If C# libs are unavailable.
 - **Tolerance**: Typically `1e-6` to `1e-9`.
 
+When asserting parameter validation behavior (e.g., invalid periods or mismatched buffer lengths), align with the MA0015-compliant pattern defined in `AGENTS.md` (commit d7dbd70): `ArgumentException` (or derived) overloads must include the offending `paramName` (for example `nameof(output)` or `nameof(sourceY)`), and tests should verify both the exception type and the parameter name where relevant.
+
 ## 3. Example Test Template
 
 ```csharp
diff --git a/lib/core/tbarseries/TBarSeries.Tests.cs b/lib/core/tbarseries/TBarSeries.Tests.cs
index 63d8e84e..07cbfdbe 100644
--- a/lib/core/tbarseries/TBarSeries.Tests.cs
+++ b/lib/core/tbarseries/TBarSeries.Tests.cs
@@ -1,9 +1,9 @@
 
-namespace QuanTAlib.Tests
+namespace QuanTAlib.Tests;
+
+public class TBarSeriesTests
 {
-    public class TBarSeriesTests
-    {
-        [Fact]
+    [Fact]
         public void Constructor_Default_CreatesEmptySeries()
         {
             var series = new TBarSeries();
@@ -340,13 +340,13 @@ namespace QuanTAlib.Tests
         public void GetEnumerator_NonGeneric_Works()
         {
             var series = new TBarSeries();
-            series.Add(100, 10, 15, 5, 12, 100);
-            series.Add(200, 20, 25, 15, 22, 200);
-            
-            IEnumerable enumerable = series;
-            var list = new List<object>();
-            foreach (var item in enumerable)
-            {
+        series.Add(100, 10, 15, 5, 12, 100, isNew: true);
+        series.Add(200, 20, 25, 15, 22, 200, isNew: true);
+
+        var list = new List<object>();
+
+        foreach (var item in (IEnumerable)series)
+        {
                 list.Add(item);
             }
             
@@ -406,7 +406,6 @@ namespace QuanTAlib.Tests
             Assert.Equal(3, series.Count);
             Assert.Equal(100, series[0].Time);
             Assert.Equal(200, series[1].Time);
-            Assert.Equal(300, series[2].Time);
-        }
+        Assert.Equal(300, series[2].Time);
     }
 }
diff --git a/lib/core/tbarseries/tbarseries.cs b/lib/core/tbarseries/tbarseries.cs
index 7d90a10b..2843d96e 100644
--- a/lib/core/tbarseries/tbarseries.cs
+++ b/lib/core/tbarseries/tbarseries.cs
@@ -21,7 +21,6 @@ public readonly struct TBarEventArgs
 // We intentionally deviate from the standard EventArgs pattern here for perf.
 #pragma warning disable MA0046 // The second parameter must be of type 'System.EventArgs' or a derived type
 public delegate void TBarPublishedHandler(object? sender, in TBarEventArgs args);
-#pragma warning restore MA0046
 
 public class TBarSeries : IReadOnlyList<TBar>
 {
@@ -36,6 +35,7 @@ public class TBarSeries : IReadOnlyList<TBar>
 
     public string Name { get; set; } = "Bar";
     public event TBarPublishedHandler? Pub;
+#pragma warning restore MA0046
 
     // Note: These views share underlying storage. Do not modify directly; use TBarSeries.Add() instead.
     public TSeries Open { get; }