diff --git a/.claude/settings.local.json b/.claude/settings.local.json
index 2b08fdb..4cf40ad 100644
--- a/.claude/settings.local.json
+++ b/.claude/settings.local.json
@@ -37,7 +37,14 @@
       "Bash(sort:*)",
       "WebFetch(domain:neuecc.medium.com)",
       "WebFetch(domain:raw.githubusercontent.com)",
-      "Bash(xargs cat)"
+      "Bash(xargs cat)",
+      "Bash(curl -s -H \"Accept: application/vnd.github.v3+json\" \"https://api.github.com/repos/Cysharp/MemoryPack/git/trees/main?recursive=1\")",
+      "Bash(python3 -c \" import sys, json data = json.load\\(sys.stdin\\) for item in data.get\\(''tree'', []\\): path = item[''path''] if ''nion'' in path.lower\\(\\) or ''Emitter'' in path or ''Generator'' in path.split\\(''/''\\)[-1] if ''/'' in path else False: print\\(path\\) \")",
+      "Bash(python -c \" import sys, json data = json.load\\(sys.stdin\\) for item in data.get\\(''tree'', []\\): p = item[''path''] pl = p.lower\\(\\) if ''union'' in pl or ''emitter'' in pl or \\(p.startswith\\(''src/MemoryPack.Generator/''\\) and p.endswith\\(''.cs''\\)\\): print\\(p\\) \")",
+      "Bash(curl -s \"https://api.github.com/repos/Cysharp/MemoryPack/git/trees/main?recursive=1\")",
+      "Bash(curl -sL \"https://raw.githubusercontent.com/Cysharp/MemoryPack/main/src/MemoryPack.Generator/MemoryPackGenerator.Emitter.cs\")",
+      "Bash(curl -sL \"https://raw.githubusercontent.com/Cysharp/MemoryPack/main/src/MemoryPack.Core/MemoryPackCode.cs\")",
+      "Bash(curl -sL \"https://raw.githubusercontent.com/Cysharp/MemoryPack/main/src/MemoryPack.Generator/MemoryPackGenerator.Parser.cs\")"
     ]
   }
 }
diff --git a/AyCode.Core/Serializers/Binaries/AcBinarySerializerOptions.cs b/AyCode.Core/Serializers/Binaries/AcBinarySerializerOptions.cs
index dc76c95..e725a7e 100644
--- a/AyCode.Core/Serializers/Binaries/AcBinarySerializerOptions.cs
+++ b/AyCode.Core/Serializers/Binaries/AcBinarySerializerOptions.cs
@@ -90,7 +90,7 @@ public sealed class AcBinarySerializerOptions : AcSerializerOptions
     /// Compact: VarInt + UTF-8 (default, smaller output).
     /// Fast: Fixed-width integers + UTF-16 (larger output, faster encode/decode).
     /// </summary>
-    public WireMode WireMode { get; set; } = WireMode.Fast;
+    public WireMode WireMode { get; set; } = WireMode.Compact;
 
     /// <summary>
     /// Controls how string interning is applied during serialization.
@@ -99,7 +99,7 @@ public sealed class AcBinarySerializerOptions : AcSerializerOptions
     /// All: All strings within length limits are interned (legacy behavior).
     /// Default: All
     /// </summary>
-    public StringInterningMode UseStringInterning { get; set; } = StringInterningMode.All;
+    public StringInterningMode UseStringInterning { get; set; } = StringInterningMode.Attribute;
 
     /// <summary>
     /// When true, checks for duplicate property name hashes during serialization (UseMetadata mode).