diff --git a/.pr_agent_accepted_suggestions.md b/.pr_agent_accepted_suggestions.md
index 8d9d09b..efbc786 100644
--- a/.pr_agent_accepted_suggestions.md
+++ b/.pr_agent_accepted_suggestions.md
@@ -1,3 +1,49 @@
+
+
+
+
+[possible issue] Fix null reference exception risk
+
+___
+
+✅ Fix null reference exception risk
+
+**The null check for schema should occur before accessing schema.PrimaryKey to prevent potential null reference exceptions. Move the null validation to the beginning of the constructor.**
+
+[WelsonJS.Toolkit/WelsonJS.Esent/EsentDatabase.cs [35-41]](https://github.com/gnh1201/welsonjs/pull/279/files#diff-21f279a29d8eeede6f37b552960fc5b0aef7c187c40481256398bd8a318f5590R35-R41)
+
+```diff
+ public EsentDatabase(Schema schema, string workingDirectory, ICompatibleLogger logger = null)
+ {
++ if (schema == null)
++ throw new ArgumentNullException(nameof(schema));
++
+ _logger = logger ?? new TraceLogger();
+-
+ _primaryKey = schema.PrimaryKey;
+
+- if (schema == null)
+-
+```
+
+
+
+Suggestion importance[1-10]: 9
+
+__
+
+Why: The suggestion correctly identifies a critical bug. The code accesses `schema.PrimaryKey` before checking if `schema` is null, which would lead to a `NullReferenceException` if a null schema is provided. Moving the validation to the start of the constructor is the correct way to fix this.
+
+___
+
+
+
+___
+
+
+
@@ -39,6 +85,8 @@ ___
+
+
@@ -90,6 +138,8 @@ ___
+
+
@@ -152,6 +202,8 @@ ___
+
+
@@ -271,6 +323,8 @@ ___
+
+
@@ -359,6 +413,8 @@ ___
+
+