diff --git a/assistant-agent-autoconfigure/pom.xml b/assistant-agent-autoconfigure/pom.xml
index 2a41645c..827fe437 100644
--- a/assistant-agent-autoconfigure/pom.xml
+++ b/assistant-agent-autoconfigure/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.alibaba.agent.assistant</groupId>
         <artifactId>assistant-agent</artifactId>
-        <version>0.2.3</version>
+        <version>0.2.4</version>
     </parent>
 
     <artifactId>assistant-agent-autoconfigure</artifactId>
diff --git a/assistant-agent-common/pom.xml b/assistant-agent-common/pom.xml
index f2d39e8a..37db5057 100644
--- a/assistant-agent-common/pom.xml
+++ b/assistant-agent-common/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.alibaba.agent.assistant</groupId>
         <artifactId>assistant-agent</artifactId>
-        <version>0.2.3</version>
+        <version>0.2.4</version>
     </parent>
 
     <artifactId>assistant-agent-common</artifactId>
diff --git a/assistant-agent-core/pom.xml b/assistant-agent-core/pom.xml
index f2dc8e55..602e8f4b 100644
--- a/assistant-agent-core/pom.xml
+++ b/assistant-agent-core/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.alibaba.agent.assistant</groupId>
         <artifactId>assistant-agent</artifactId>
-        <version>0.2.3</version>
+        <version>0.2.4</version>
     </parent>
 
     <artifactId>assistant-agent-core</artifactId>
diff --git a/assistant-agent-evaluation/pom.xml b/assistant-agent-evaluation/pom.xml
index 831fb8fb..76a65179 100644
--- a/assistant-agent-evaluation/pom.xml
+++ b/assistant-agent-evaluation/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.alibaba.agent.assistant</groupId>
         <artifactId>assistant-agent</artifactId>
-        <version>0.2.3</version>
+        <version>0.2.4</version>
     </parent>
 
     <artifactId>assistant-agent-evaluation</artifactId>
diff --git a/assistant-agent-extensions/pom.xml b/assistant-agent-extensions/pom.xml
index 642bed72..145f3a05 100644
--- a/assistant-agent-extensions/pom.xml
+++ b/assistant-agent-extensions/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.alibaba.agent.assistant</groupId>
         <artifactId>assistant-agent</artifactId>
-        <version>0.2.3</version>
+        <version>0.2.4</version>
     </parent>
 
     <artifactId>assistant-agent-extensions</artifactId>
diff --git a/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/fastintent/FastIntentService.java b/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/fastintent/FastIntentService.java
index 73d60cd2..bcb1428d 100644
--- a/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/fastintent/FastIntentService.java
+++ b/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/fastintent/FastIntentService.java
@@ -154,7 +154,7 @@ public boolean matches(FastIntentConfig.Condition condition, FastIntentContext c
             if (!StringUtils.hasText(input) || !StringUtils.hasText(condition.getValue())) {
                 return false;
             }
-            boolean trim = Boolean.TRUE.equals(condition.getTrim());
+            boolean trim = condition.getTrim() == null || Boolean.TRUE.equals(condition.getTrim());
             boolean ignoreCase = Boolean.TRUE.equals(condition.getIgnoreCase());
             String s = trim ? input.trim() : input;
             String prefix = condition.getValue();
@@ -275,4 +275,3 @@ public boolean matches(FastIntentConfig.Condition condition, FastIntentContext c
     }
 }
 
-
diff --git a/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/hook/FastIntentReactHook.java b/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/hook/FastIntentReactHook.java
index e5ad4c97..2229f87f 100644
--- a/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/hook/FastIntentReactHook.java
+++ b/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/hook/FastIntentReactHook.java
@@ -126,6 +126,7 @@ public CompletableFuture<Map<String, Object>> beforeAgent(OverAllState state, Ru
 
             ExperienceQuery query = new ExperienceQuery(ExperienceType.REACT);
             query.setLimit(Math.max(20, properties.getMaxItemsPerQuery())); // fastpath needs enough candidates
+            query.setRetrievalMode(ExperienceQuery.RetrievalMode.FULL_SCAN);
             // 关键修复：设置查询文本，用于向量搜索
             if (StringUtils.hasText(userInput)) {
                 query.setText(userInput);
@@ -253,4 +254,3 @@ private ExperienceQueryContext buildQueryContext(OverAllState state, RunnableCon
         return context;
     }
 }
-
diff --git a/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/model/ExperienceQuery.java b/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/model/ExperienceQuery.java
index 6cc76f28..dec42e95 100644
--- a/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/model/ExperienceQuery.java
+++ b/assistant-agent-extensions/src/main/java/com/alibaba/assistant/agent/extension/experience/model/ExperienceQuery.java
@@ -40,6 +40,11 @@ public class ExperienceQuery {
      */
     private int limit = 5;
 
+    /**
+     * 经验候选召回策略。
+     */
+    private RetrievalMode retrievalMode = RetrievalMode.DEFAULT;
+
     /**
      * 排序方式
      */
@@ -64,6 +69,20 @@ public enum OrderBy {
         SCORE
     }
 
+    /**
+     * 候选召回策略。
+     */
+    public enum RetrievalMode {
+        /**
+         * 默认策略，由 Provider 自行决定是否走向量召回或普通查询。
+         */
+        DEFAULT,
+        /**
+         * 全量扫描候选集，适用于 FastIntent 等需要穷举匹配的场景。
+         */
+        FULL_SCAN
+    }
+
     public ExperienceQuery() {
     }
 
@@ -119,6 +138,14 @@ public void setLimit(int limit) {
         this.limit = limit;
     }
 
+    public RetrievalMode getRetrievalMode() {
+        return retrievalMode;
+    }
+
+    public void setRetrievalMode(RetrievalMode retrievalMode) {
+        this.retrievalMode = retrievalMode;
+    }
+
     public OrderBy getOrderBy() {
         return orderBy;
     }
diff --git a/assistant-agent-extensions/src/test/java/com/alibaba/assistant/agent/extension/experience/fastintent/FastIntentServiceTest.java b/assistant-agent-extensions/src/test/java/com/alibaba/assistant/agent/extension/experience/fastintent/FastIntentServiceTest.java
new file mode 100644
index 00000000..ac73411b
--- /dev/null
+++ b/assistant-agent-extensions/src/test/java/com/alibaba/assistant/agent/extension/experience/fastintent/FastIntentServiceTest.java
@@ -0,0 +1,56 @@
+package com.alibaba.assistant.agent.extension.experience.fastintent;
+
+import com.alibaba.assistant.agent.extension.experience.model.FastIntentConfig;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class FastIntentServiceTest {
+
+    private final FastIntentService service = new FastIntentService(List.of());
+
+    @Test
+    void messagePrefixShouldTrimByDefault() {
+        FastIntentConfig.Condition condition = new FastIntentConfig.Condition();
+        condition.setType("message_prefix");
+        condition.setValue("帮我诊断这个缺陷");
+
+        FastIntentConfig.MatchExpression expression = new FastIntentConfig.MatchExpression();
+        expression.setCondition(condition);
+
+        FastIntentContext context = new FastIntentContext(
+                "\n帮我诊断这个缺陷，缺陷ID：71410746",
+                List.of(),
+                Map.of(),
+                null,
+                null
+        );
+
+        assertTrue(service.matches(expression, context));
+    }
+
+    @Test
+    void messagePrefixShouldRespectExplicitNoTrim() {
+        FastIntentConfig.Condition condition = new FastIntentConfig.Condition();
+        condition.setType("message_prefix");
+        condition.setValue("帮我诊断这个缺陷");
+        condition.setTrim(false);
+
+        FastIntentConfig.MatchExpression expression = new FastIntentConfig.MatchExpression();
+        expression.setCondition(condition);
+
+        FastIntentContext context = new FastIntentContext(
+                "\n帮我诊断这个缺陷，缺陷ID：71410746",
+                List.of(),
+                Map.of(),
+                null,
+                null
+        );
+
+        assertFalse(service.matches(expression, context));
+    }
+}
diff --git a/assistant-agent-prompt-builder/pom.xml b/assistant-agent-prompt-builder/pom.xml
index 41e62ad4..0876224e 100644
--- a/assistant-agent-prompt-builder/pom.xml
+++ b/assistant-agent-prompt-builder/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.alibaba.agent.assistant</groupId>
         <artifactId>assistant-agent</artifactId>
-        <version>0.2.3</version>
+        <version>0.2.4</version>
     </parent>
 
     <artifactId>assistant-agent-prompt-builder</artifactId>
diff --git a/assistant-agent-start/pom.xml b/assistant-agent-start/pom.xml
index 6e0a18e3..c5006a12 100644
--- a/assistant-agent-start/pom.xml
+++ b/assistant-agent-start/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.alibaba.agent.assistant</groupId>
         <artifactId>assistant-agent</artifactId>
-        <version>0.2.3</version>
+        <version>0.2.4</version>
     </parent>
 
     <artifactId>assistant-agent-start</artifactId>
diff --git a/pom.xml b/pom.xml
index 757aa759..394203b0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.alibaba.agent.assistant</groupId>
     <artifactId>assistant-agent</artifactId>
-    <version>0.2.3</version>
+    <version>0.2.4</version>
     <packaging>pom</packaging>
     <distributionManagement>
         <repository>