diff --git a/reports/current.md b/reports/current.md
index d99bebb..7e510cb 100644
--- a/reports/current.md
+++ b/reports/current.md
@@ -1,6 +1,6 @@
 # NATS .NET Porting Status Report
 
-Generated: 2026-02-27 09:38:59 UTC
+Generated: 2026-02-27 09:40:28 UTC
 
 ## Modules (12 total)
 
diff --git a/reports/report_3f6c5f2.md b/reports/report_3f6c5f2.md
new file mode 100644
index 0000000..7e510cb
--- /dev/null
+++ b/reports/report_3f6c5f2.md
@@ -0,0 +1,35 @@
+# NATS .NET Porting Status Report
+
+Generated: 2026-02-27 09:40:28 UTC
+
+## Modules (12 total)
+
+| Status | Count |
+|--------|-------|
+| verified | 12 |
+
+## Features (3673 total)
+
+| Status | Count |
+|--------|-------|
+| deferred | 3394 |
+| verified | 279 |
+
+## Unit Tests (3257 total)
+
+| Status | Count |
+|--------|-------|
+| deferred | 2680 |
+| n_a | 187 |
+| verified | 390 |
+
+## Library Mappings (36 total)
+
+| Status | Count |
+|--------|-------|
+| mapped | 36 |
+
+
+## Overall Progress
+
+**868/6942 items complete (12.5%)**
diff --git a/tools/NatsNet.PortTracker/Commands/BatchFilters.cs b/tools/NatsNet.PortTracker/Commands/BatchFilters.cs
new file mode 100644
index 0000000..68115d9
--- /dev/null
+++ b/tools/NatsNet.PortTracker/Commands/BatchFilters.cs
@@ -0,0 +1,191 @@
+using System.CommandLine;
+using NatsNet.PortTracker.Data;
+
+namespace NatsNet.PortTracker.Commands;
+
+public static class BatchFilters
+{
+    public static Option<string?> IdsOption() => new("--ids")
+    {
+        Description = "ID range: 100-200, 1,5,10, or mixed 1-5,10,20-25"
+    };
+
+    public static Option<int?> ModuleOption() => new("--module")
+    {
+        Description = "Filter by module ID"
+    };
+
+    public static Option<string?> StatusOption() => new("--status")
+    {
+        Description = "Filter by current status"
+    };
+
+    public static Option<bool> ExecuteOption() => new("--execute")
+    {
+        Description = "Actually apply changes (default is dry-run preview)",
+        DefaultValueFactory = _ => false
+    };
+
+    public static void AddFilterOptions(Command cmd, bool includeModuleFilter)
+    {
+        cmd.Add(IdsOption());
+        if (includeModuleFilter)
+            cmd.Add(ModuleOption());
+        cmd.Add(StatusOption());
+        cmd.Add(ExecuteOption());
+    }
+
+    public static List<int> ParseIds(string? idsSpec)
+    {
+        if (string.IsNullOrWhiteSpace(idsSpec)) return [];
+
+        var ids = new List<int>();
+        foreach (var part in idsSpec.Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries))
+        {
+            if (part.Contains('-'))
+            {
+                var range = part.Split('-', 2);
+                if (int.TryParse(range[0], out var start) && int.TryParse(range[1], out var end))
+                {
+                    for (var i = start; i <= end; i++)
+                        ids.Add(i);
+                }
+                else
+                {
+                    Console.WriteLine($"Warning: invalid range '{part}', skipping.");
+                }
+            }
+            else if (int.TryParse(part, out var id))
+            {
+                ids.Add(id);
+            }
+            else
+            {
+                Console.WriteLine($"Warning: invalid ID '{part}', skipping.");
+            }
+        }
+        return ids;
+    }
+
+    public static (string whereClause, List<(string name, object? value)> parameters) BuildWhereClause(
+        string? idsSpec, int? moduleId, string? status, string idColumn = "id", string moduleColumn = "module_id")
+    {
+        var clauses = new List<string>();
+        var parameters = new List<(string name, object? value)>();
+
+        if (!string.IsNullOrWhiteSpace(idsSpec))
+        {
+            var ids = ParseIds(idsSpec);
+            if (ids.Count > 0)
+            {
+                var placeholders = new List<string>();
+                for (var i = 0; i < ids.Count; i++)
+                {
+                    placeholders.Add($"@id{i}");
+                    parameters.Add(($"@id{i}", ids[i]));
+                }
+                clauses.Add($"{idColumn} IN ({string.Join(", ", placeholders)})");
+            }
+        }
+
+        if (moduleId is not null)
+        {
+            clauses.Add($"{moduleColumn} = @moduleFilter");
+            parameters.Add(("@moduleFilter", moduleId));
+        }
+
+        if (!string.IsNullOrWhiteSpace(status))
+        {
+            clauses.Add("status = @statusFilter");
+            parameters.Add(("@statusFilter", status));
+        }
+
+        if (clauses.Count == 0)
+            return ("", parameters);
+
+        return (" WHERE " + string.Join(" AND ", clauses), parameters);
+    }
+
+    public static void PreviewOrExecute(
+        Database db,
+        string table,
+        string displayColumns,
+        string updateSetClause,
+        List<(string name, object? value)> updateParams,
+        string whereClause,
+        List<(string name, object? value)> filterParams,
+        bool execute)
+    {
+        // Count matching rows
+        var countSql = $"SELECT COUNT(*) FROM {table}{whereClause}";
+        var count = db.ExecuteScalar<long>(countSql, filterParams.ToArray());
+
+        if (count == 0)
+        {
+            Console.WriteLine("No items match the specified filters.");
+            return;
+        }
+
+        // Preview
+        var previewSql = $"SELECT {displayColumns} FROM {table}{whereClause} ORDER BY id";
+        var rows = db.Query(previewSql, filterParams.ToArray());
+
+        if (!execute)
+        {
+            Console.WriteLine($"Would affect {count} items:");
+            Console.WriteLine();
+            PrintPreviewTable(rows);
+            Console.WriteLine();
+            Console.WriteLine("Add --execute to apply these changes.");
+            return;
+        }
+
+        // Execute
+        var allParams = new List<(string name, object? value)>();
+        allParams.AddRange(updateParams);
+        allParams.AddRange(filterParams);
+
+        var updateSql = $"UPDATE {table} SET {updateSetClause}{whereClause}";
+        var affected = db.ExecuteInTransaction(updateSql, allParams.ToArray());
+        Console.WriteLine($"Updated {affected} items.");
+    }
+
+    private static void PrintPreviewTable(List<Dictionary<string, object?>> rows)
+    {
+        if (rows.Count == 0) return;
+
+        var columns = rows[0].Keys.ToList();
+        var widths = columns.Select(c => c.Length).ToList();
+
+        foreach (var row in rows)
+        {
+            for (var i = 0; i < columns.Count; i++)
+            {
+                var val = row[columns[i]]?.ToString() ?? "";
+                if (val.Length > widths[i]) widths[i] = Math.Min(val.Length, 40);
+            }
+        }
+
+        // Header
+        var header = string.Join(" ", columns.Select((c, i) => Truncate(c, widths[i]).PadRight(widths[i])));
+        Console.WriteLine(header);
+        Console.WriteLine(new string('-', header.Length));
+
+        // Rows (cap at 50 for preview)
+        var displayRows = rows.Take(50).ToList();
+        foreach (var row in displayRows)
+        {
+            var line = string.Join(" ", columns.Select((c, i) =>
+                Truncate(row[c]?.ToString() ?? "", widths[i]).PadRight(widths[i])));
+            Console.WriteLine(line);
+        }
+
+        if (rows.Count > 50)
+            Console.WriteLine($"  ... and {rows.Count - 50} more");
+    }
+
+    private static string Truncate(string s, int maxLen)
+    {
+        return s.Length <= maxLen ? s : s[..(maxLen - 2)] + "..";
+    }
+}