diff --git a/crates/zclaw-runtime/src/growth.rs b/crates/zclaw-runtime/src/growth.rs
index cfc7d74..624a06d 100644
--- a/crates/zclaw-runtime/src/growth.rs
+++ b/crates/zclaw-runtime/src/growth.rs
@@ -12,7 +12,8 @@
 
 use std::sync::Arc;
 use zclaw_growth::{
-    CombinedExtraction, ExperienceExtractor, GrowthTracker, InjectionFormat,
+    AggregatedPattern, CombinedExtraction, EvolutionConfig, EvolutionEngine,
+    ExperienceExtractor, GrowthTracker, InjectionFormat,
     LlmDriverForExtraction, MemoryExtractor, MemoryRetriever, PromptInjector,
     ProfileSignals, RetrievalResult, UserProfileUpdater, VikingAdapter,
 };
@@ -38,6 +39,8 @@ pub struct GrowthIntegration {
     profile_updater: UserProfileUpdater,
     /// User profile store (optional, for profile updates)
     profile_store: Option<Arc<UserProfileStore>>,
+    /// Evolution engine for L2 skill generation (optional)
+    evolution_engine: Option<EvolutionEngine>,
     /// Configuration
     config: GrowthConfigInner,
 }
@@ -75,7 +78,8 @@ impl GrowthIntegration {
 
         let retriever = MemoryRetriever::new(viking.clone());
         let injector = PromptInjector::new();
-        let tracker = GrowthTracker::new(viking);
+        let tracker = GrowthTracker::new(viking.clone());
+        let evolution_engine = Some(EvolutionEngine::new(viking));
 
         Self {
             retriever,
@@ -85,6 +89,7 @@ impl GrowthIntegration {
             experience_extractor: ExperienceExtractor::new(),
             profile_updater: UserProfileUpdater::new(),
             profile_store: None,
+            evolution_engine,
             config: GrowthConfigInner::default(),
         }
     }
@@ -122,6 +127,36 @@ impl GrowthIntegration {
         self
     }
 
+    /// Set the evolution engine configuration
+    pub fn with_evolution_config(self, config: EvolutionConfig) -> Self {
+        let engine = self.evolution_engine.unwrap_or_else(|| {
+            EvolutionEngine::new(Arc::new(VikingAdapter::in_memory()))
+        });
+        Self {
+            evolution_engine: Some(engine.with_config(config)),
+            ..self
+        }
+    }
+
+    /// Enable or disable the evolution engine
+    pub fn set_evolution_enabled(&mut self, enabled: bool) {
+        if let Some(ref mut engine) = self.evolution_engine {
+            engine.set_enabled(enabled);
+        }
+    }
+
+    /// L2 检查：是否有可进化的模式
+    /// 在 extract_combined 之后调用，返回可固化的经验模式列表
+    pub async fn check_evolution(
+        &self,
+        agent_id: &AgentId,
+    ) -> Result<Vec<AggregatedPattern>> {
+        match &self.evolution_engine {
+            Some(engine) => engine.check_evolvable_patterns(&agent_id.to_string()).await,
+            None => Ok(Vec::new()),
+        }
+    }
+
     /// Enhance system prompt with retrieved memories
     ///
     /// This method: