diff --git a/.run/Debug Skills.run.xml b/.run/Debug Skills.run.xml
new file mode 100644
index 00000000..1dd23b84
--- /dev/null
+++ b/.run/Debug Skills.run.xml	
@@ -0,0 +1,15 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Debug Skills" type="Remote">
+    <option name="USE_SOCKET_TRANSPORT" value="true" />
+    <option name="SERVER_MODE" value="true" />
+    <option name="SHMEM_ADDRESS" />
+    <option name="HOST" value="localhost" />
+    <option name="PORT" value="5005" />
+    <option name="AUTO_RESTART" value="true" />
+    <RunnerSettings RunnerId="Debug">
+      <option name="DEBUG_PORT" value="5005" />
+      <option name="LOCAL" value="false" />
+    </RunnerSettings>
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/src/main/java/org/opensearch/agent/tools/RCATool.java b/src/main/java/org/opensearch/agent/tools/RCATool.java
index 94d62ef5..ed662399 100644
--- a/src/main/java/org/opensearch/agent/tools/RCATool.java
+++ b/src/main/java/org/opensearch/agent/tools/RCATool.java
@@ -5,11 +5,8 @@
 
 package org.opensearch.agent.tools;
 
-import static org.apache.commons.text.StringEscapeUtils.unescapeJson;
-
 import java.io.IOException;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
@@ -22,6 +19,7 @@
 import org.opensearch.action.admin.cluster.allocation.ClusterAllocationExplainRequest;
 import org.opensearch.action.admin.cluster.allocation.ClusterAllocationExplainResponse;
 import org.opensearch.agent.tools.utils.ClusterStatsUtil;
+import org.opensearch.agent.tools.utils.RCADoc;
 import org.opensearch.client.Client;
 import org.opensearch.common.xcontent.XContentFactory;
 import org.opensearch.core.action.ActionListener;
@@ -36,7 +34,6 @@
 import org.opensearch.ml.common.spi.tools.ToolAnnotation;
 import org.opensearch.ml.common.transport.prediction.MLPredictionTaskAction;
 import org.opensearch.ml.common.transport.prediction.MLPredictionTaskRequest;
-import org.opensearch.ml.common.utils.StringUtils;
 
 import lombok.Getter;
 import lombok.Setter;
@@ -94,16 +91,14 @@ public boolean validate(Map<String, String> parameters) {
     @SuppressWarnings("unchecked")
     public <T> void runOption1(Map<String, String> parameters, ActionListener<T> listener) {
         String knowledge = parameters.get(KNOWLEDGE_BASE_TOOL_OUTPUT_FIELD);
-        knowledge = unescapeJson(knowledge);
-        Map<String, ?> knowledgeBase = StringUtils.gson.fromJson(knowledge, Map.class);
-        List<Map<String, String>> causes = (List<Map<String, String>>) knowledgeBase.get("causes");
-        Set<String> apis = causes.stream().map(c -> c.get(API_URL_FIELD)).collect(Collectors.toSet());
+        RCADoc rcaDoc = new RCADoc(knowledge);
+        Set<String> apis = rcaDoc.causes.stream().map(c -> c.apiUrl).collect(Collectors.toSet());
         ActionListener<Map<String, String>> apiListener = new ActionListener<>() {
             @Override
             public void onResponse(Map<String, String> apiToResponse) {
-                causes.forEach(cause -> cause.put("response", apiToResponse.get(cause.get(API_URL_FIELD))));
+                rcaDoc.causes.forEach(cause -> cause.response = apiToResponse.get(cause.apiUrl));
                 Map<String, String> LLMParams = new java.util.HashMap<>(
-                    Map.of("phenomenon", (String) knowledgeBase.get("phenomenon"), "causes", StringUtils.gson.toJson(causes))
+                    Map.of("phenomenon", rcaDoc.phenomenon, "causes", rcaDoc.toString())
                 );
                 StringSubstitutor substitute = new StringSubstitutor(LLMParams, "${parameters.", "}");
                 String finalToolPrompt = substitute.replace(TOOL_PROMPT);
diff --git a/src/main/java/org/opensearch/agent/tools/utils/RCACause.java b/src/main/java/org/opensearch/agent/tools/utils/RCACause.java
index 3b79aa04..33cfedf0 100644
--- a/src/main/java/org/opensearch/agent/tools/utils/RCACause.java
+++ b/src/main/java/org/opensearch/agent/tools/utils/RCACause.java
@@ -5,6 +5,10 @@
 
 package org.opensearch.agent.tools.utils;
 
+import static org.apache.commons.text.StringEscapeUtils.escapeJson;
+
+import java.util.Map;
+
 import lombok.Getter;
 
 @Getter
@@ -15,4 +19,31 @@ public RCACause() {}
     public String apiUrl;
     public String expectedResponse;
     public String response;
+
+    public static RCACause fromMap(Map<String, String> map) {
+        RCACause cause = new RCACause();
+        cause.reason = map.getOrDefault("reason", "");
+        cause.apiUrl = map.getOrDefault("api_url", "");
+        cause.expectedResponse = map.getOrDefault("expected_response", "");
+        cause.response = map.getOrDefault("response", "");
+        return cause;
+    }
+
+    @Override
+    public String toString() {
+        return "{"
+            + "\"reason\": \""
+            + escapeJson(reason)
+            + "\","
+            + "\"apiUrl\": \""
+            + escapeJson(apiUrl)
+            + "\","
+            + "\"expectedResponse\": \""
+            + escapeJson(expectedResponse)
+            + "\","
+            + "\"response\": \""
+            + escapeJson(response)
+            + "\""
+            + "}";
+    }
 }
diff --git a/src/main/java/org/opensearch/agent/tools/utils/RCADoc.java b/src/main/java/org/opensearch/agent/tools/utils/RCADoc.java
index a2428e83..fb960e10 100644
--- a/src/main/java/org/opensearch/agent/tools/utils/RCADoc.java
+++ b/src/main/java/org/opensearch/agent/tools/utils/RCADoc.java
@@ -5,7 +5,14 @@
 
 package org.opensearch.agent.tools.utils;
 
+import static org.apache.commons.text.StringEscapeUtils.escapeJson;
+import static org.apache.commons.text.StringEscapeUtils.unescapeJson;
+
 import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+import org.opensearch.ml.common.utils.StringUtils;
 
 import lombok.Getter;
 
@@ -15,5 +22,31 @@ public class RCADoc {
     public String phenomenon;
     public List<RCACause> causes;
 
-    public RCADoc() {}
+    @SuppressWarnings("unchecked")
+    public RCADoc(String knowledge) {
+        knowledge = unescapeJson(knowledge);
+        Map<String, ?> knowledgeBase = StringUtils.gson.fromJson(knowledge, Map.class);
+        this.phenomenon = (String) knowledgeBase.get("phenomenon");
+        this.causes = ((List<Map<String, String>>) knowledgeBase.get("causes"))
+            .stream()
+            .map(RCACause::fromMap)
+            .collect(Collectors.toList());
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder json = new StringBuilder();
+        json.append("{");
+        json.append("\"phenomenon\":\"").append(escapeJson(phenomenon)).append("\",");
+        json.append("\"causes\": [");
+        for (int i = 0; i < causes.size(); i++) {
+            json.append(causes.get(i).toString());
+            if (i < causes.size() - 1) {
+                json.append(", ");
+            }
+        }
+
+        json.append("]}");
+        return json.toString();
+    }
 }