diff --git a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/parser/QueryTypeParser.java b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/parser/QueryTypeParser.java
index f999db625..11ad82f97 100644
--- a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/parser/QueryTypeParser.java
+++ b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/parser/QueryTypeParser.java
@@ -23,7 +23,7 @@ import java.util.Objects;
 import java.util.Set;
 import java.util.stream.Collectors;
 
-/** QueryTypeParser resolves query type as either METRIC or TAG, or ID. */
+/** QueryTypeParser resolves query type as either AGGREGATE or DETAIL or ID. */
 @Slf4j
 public class QueryTypeParser implements SemanticParser {
 
diff --git a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/parser/SatisfactionChecker.java b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/parser/SatisfactionChecker.java
deleted file mode 100644
index 8aa3092cb..000000000
--- a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/parser/SatisfactionChecker.java
+++ /dev/null
@@ -1,58 +0,0 @@
-package com.tencent.supersonic.headless.chat.parser;
-
-import com.tencent.supersonic.common.util.ContextUtils;
-import com.tencent.supersonic.headless.api.pojo.SemanticParseInfo;
-import com.tencent.supersonic.headless.chat.ChatQueryContext;
-import com.tencent.supersonic.headless.chat.query.SemanticQuery;
-import com.tencent.supersonic.headless.chat.query.llm.s2sql.LLMSqlQuery;
-import lombok.extern.slf4j.Slf4j;
-
-import static com.tencent.supersonic.headless.chat.parser.ParserConfig.PARSER_TEXT_LENGTH_THRESHOLD;
-import static com.tencent.supersonic.headless.chat.parser.ParserConfig.PARSER_TEXT_LENGTH_THRESHOLD_LONG;
-import static com.tencent.supersonic.headless.chat.parser.ParserConfig.PARSER_TEXT_LENGTH_THRESHOLD_SHORT;
-
-/**
- * This checker can be used by semantic parsers to check if query intent has already been satisfied
- * by current candidate queries. If so, current parser could be skipped.
- */
-@Slf4j
-@Deprecated
-public class SatisfactionChecker {
-
-    // check all the parse info in candidate
-    public static boolean isSkip(ChatQueryContext chatQueryContext) {
-        for (SemanticQuery query : chatQueryContext.getCandidateQueries()) {
-            if (query.getQueryMode().equals(LLMSqlQuery.QUERY_MODE)) {
-                continue;
-            }
-            if (checkThreshold(chatQueryContext.getRequest().getQueryText(),
-                    query.getParseInfo())) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private static boolean checkThreshold(String queryText, SemanticParseInfo semanticParseInfo) {
-        int queryTextLength = queryText.replaceAll(" ", "").length();
-        double degree = semanticParseInfo.getScore() / queryTextLength;
-        ParserConfig parserConfig = ContextUtils.getBean(ParserConfig.class);
-        int textLengthThreshold =
-                Integer.valueOf(parserConfig.getParameterValue(PARSER_TEXT_LENGTH_THRESHOLD));
-        double longTextLengthThreshold =
-                Double.valueOf(parserConfig.getParameterValue(PARSER_TEXT_LENGTH_THRESHOLD_LONG));
-        double shortTextLengthThreshold =
-                Double.valueOf(parserConfig.getParameterValue(PARSER_TEXT_LENGTH_THRESHOLD_SHORT));
-
-        if (queryTextLength > textLengthThreshold) {
-            if (degree < longTextLengthThreshold) {
-                return false;
-            }
-        } else if (degree < shortTextLengthThreshold) {
-            return false;
-        }
-        log.info("queryMode:{}, degree:{}, parse info:{}", semanticParseInfo.getQueryMode(), degree,
-                semanticParseInfo);
-        return true;
-    }
-}