diff --git a/Cargo.lock b/Cargo.lock
index 1ee2762..f90a526 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -9876,6 +9876,7 @@ dependencies = [
  "tokio",
  "tracing",
  "ureq",
+ "url",
  "uuid",
  "wasmtime",
  "wasmtime-wasi",
diff --git a/crates/zclaw-growth/src/evolution_engine.rs b/crates/zclaw-growth/src/evolution_engine.rs
index 9934399..4fafb8e 100644
--- a/crates/zclaw-growth/src/evolution_engine.rs
+++ b/crates/zclaw-growth/src/evolution_engine.rs
@@ -9,8 +9,7 @@ use std::sync::Arc;
 
 use crate::experience_store::ExperienceStore;
 use crate::feedback_collector::{
-    EvolutionArtifact, FeedbackCollector, FeedbackEntry, FeedbackSignal, RecommendedAction,
-    Sentiment, TrustUpdate,
+    FeedbackCollector, FeedbackEntry, TrustUpdate,
 };
 use crate::pattern_aggregator::{AggregatedPattern, PatternAggregator};
 use crate::quality_gate::{QualityGate, QualityReport};
diff --git a/crates/zclaw-growth/src/feedback_collector.rs b/crates/zclaw-growth/src/feedback_collector.rs
index 9af86e5..d08fcb5 100644
--- a/crates/zclaw-growth/src/feedback_collector.rs
+++ b/crates/zclaw-growth/src/feedback_collector.rs
@@ -2,6 +2,8 @@
 //! 收集用户对进化产物（技能/Pipeline）的显式/隐式反馈
 //! 管理信任度衰减和优化循环
 
+use std::collections::HashMap;
+
 use chrono::{DateTime, Utc};
 use serde::{Deserialize, Serialize};
 
@@ -58,21 +60,32 @@ pub struct TrustRecord {
 
 /// 反馈收集器
 /// 管理反馈记录和信任度评分
+/// 内存存储，可持久化到 SQLite（后续版本）
 pub struct FeedbackCollector {
-    /// 信任度记录表（内存，可持久化到 SQLite）
-    trust_records: Vec<TrustRecord>,
+    trust_records: HashMap<String, TrustRecord>,
 }
 
 impl FeedbackCollector {
     pub fn new() -> Self {
         Self {
-            trust_records: Vec::new(),
+            trust_records: HashMap::new(),
         }
     }
 
     /// 提交一条反馈
     pub fn submit_feedback(&mut self, entry: FeedbackEntry) -> TrustUpdate {
-        let record = self.get_or_create_record(&entry.artifact_id, &entry.artifact_type);
+        let record = self
+            .trust_records
+            .entry(entry.artifact_id.clone())
+            .or_insert_with(|| TrustRecord {
+                artifact_id: entry.artifact_id.clone(),
+                artifact_type: entry.artifact_type.clone(),
+                trust_score: 0.5,
+                total_feedback: 0,
+                positive_count: 0,
+                negative_count: 0,
+                last_updated: Utc::now(),
+            });
 
         // 更新计数
         record.total_feedback += 1;
@@ -106,13 +119,13 @@ impl FeedbackCollector {
 
     /// 获取信任度记录
     pub fn get_trust(&self, artifact_id: &str) -> Option<&TrustRecord> {
-        self.trust_records.iter().find(|r| r.artifact_id == artifact_id)
+        self.trust_records.get(artifact_id)
     }
 
     /// 获取所有需要优化的产物（信任度 < 0.4）
     pub fn get_artifacts_needing_optimization(&self) -> Vec<&TrustRecord> {
         self.trust_records
-            .iter()
+            .values()
             .filter(|r| r.trust_score < 0.4 && r.total_feedback >= 2)
             .collect()
     }
@@ -120,7 +133,7 @@ impl FeedbackCollector {
     /// 获取所有应该归档的产物（信任度 < 0.2 且反馈 >= 5）
     pub fn get_artifacts_to_archive(&self) -> Vec<&TrustRecord> {
         self.trust_records
-            .iter()
+            .values()
             .filter(|r| r.trust_score < 0.2 && r.total_feedback >= 5)
             .collect()
     }
@@ -128,37 +141,11 @@ impl FeedbackCollector {
     /// 获取所有高信任产物（信任度 >= 0.8）
     pub fn get_recommended_artifacts(&self) -> Vec<&TrustRecord> {
         self.trust_records
-            .iter()
+            .values()
             .filter(|r| r.trust_score >= 0.8)
             .collect()
     }
 
-    fn get_or_create_record(
-        &mut self,
-        artifact_id: &str,
-        artifact_type: &EvolutionArtifact,
-    ) -> &mut TrustRecord {
-        let exists = self
-            .trust_records
-            .iter()
-            .any(|r| r.artifact_id == artifact_id);
-        if !exists {
-            self.trust_records.push(TrustRecord {
-                artifact_id: artifact_id.to_string(),
-                artifact_type: artifact_type.clone(),
-                trust_score: 0.5, // 初始信任度
-                total_feedback: 0,
-                positive_count: 0,
-                negative_count: 0,
-                last_updated: Utc::now(),
-            });
-        }
-        self.trust_records
-            .iter_mut()
-            .find(|r| r.artifact_id == artifact_id)
-            .unwrap()
-    }
-
     fn calculate_trust_internal(
         positive: u32,
         negative: u32,
@@ -268,7 +255,6 @@ mod tests {
     #[test]
     fn test_recommend_optimize() {
         let mut collector = FeedbackCollector::new();
-        // 2 negative → trust < 0.4
         collector.submit_feedback(make_feedback("skill-1", Sentiment::Negative));
         let update = collector.submit_feedback(make_feedback("skill-1", Sentiment::Negative));
         assert_eq!(update.action, RecommendedAction::Optimize);
diff --git a/crates/zclaw-growth/src/json_utils.rs b/crates/zclaw-growth/src/json_utils.rs
new file mode 100644
index 0000000..6dc945e
--- /dev/null
+++ b/crates/zclaw-growth/src/json_utils.rs
@@ -0,0 +1,63 @@
+//! 共享 JSON 工具函数
+//! 从 LLM 返回的文本中提取 JSON 块
+
+/// 从 LLM 返回文本中提取 JSON 块
+/// 支持三种格式：```json...``` 围栏、```...``` 围栏、裸 {...}
+pub fn extract_json_block(text: &str) -> &str {
+    // 尝试匹配 ```json ... ```
+    if let Some(start) = text.find("```json") {
+        let json_start = start + 7;
+        if let Some(end) = text[json_start..].find("```") {
+            return text[json_start..json_start + end].trim();
+        }
+    }
+    // 尝试匹配 ``` ... ```
+    if let Some(start) = text.find("```") {
+        let json_start = start + 3;
+        if let Some(end) = text[json_start..].find("```") {
+            return text[json_start..json_start + end].trim();
+        }
+    }
+    // 尝试找 { ... } 块
+    if let Some(start) = text.find('{') {
+        if let Some(end) = text.rfind('}') {
+            return &text[start..=end];
+        }
+    }
+    text.trim()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_json_block_with_markdown() {
+        let text = "Here is the result:\n```json\n{\"key\": \"value\"}\n```\nDone.";
+        assert_eq!(extract_json_block(text), "{\"key\": \"value\"}");
+    }
+
+    #[test]
+    fn test_json_block_bare() {
+        let text = "{\"key\": \"value\"}";
+        assert_eq!(extract_json_block(text), "{\"key\": \"value\"}");
+    }
+
+    #[test]
+    fn test_json_block_plain_fences() {
+        let text = "Result:\n```\n{\"a\": 1}\n```";
+        assert_eq!(extract_json_block(text), "{\"a\": 1}");
+    }
+
+    #[test]
+    fn test_json_block_nested_braces() {
+        let text = r#"{"outer": {"inner": "val"}}"#;
+        assert_eq!(extract_json_block(text), r#"{"outer": {"inner": "val"}}"#);
+    }
+
+    #[test]
+    fn test_json_block_no_json() {
+        let text = "no json here";
+        assert_eq!(extract_json_block(text), "no json here");
+    }
+}
diff --git a/crates/zclaw-growth/src/lib.rs b/crates/zclaw-growth/src/lib.rs
index ea81863..8588c7b 100644
--- a/crates/zclaw-growth/src/lib.rs
+++ b/crates/zclaw-growth/src/lib.rs
@@ -65,6 +65,7 @@ pub mod storage;
 pub mod retrieval;
 pub mod summarizer;
 pub mod experience_store;
+pub mod json_utils;
 pub mod experience_extractor;
 pub mod profile_updater;
 pub mod pattern_aggregator;
@@ -106,7 +107,8 @@ pub use experience_store::{Experience, ExperienceStore};
 pub use retrieval::{EmbeddingClient, MemoryCache, QueryAnalyzer, SemanticScorer};
 pub use summarizer::SummaryLlmDriver;
 pub use experience_extractor::ExperienceExtractor;
-pub use profile_updater::UserProfileUpdater;
+pub use json_utils::extract_json_block;
+pub use profile_updater::{ProfileFieldUpdate, UserProfileUpdater};
 pub use pattern_aggregator::{AggregatedPattern, PatternAggregator};
 pub use skill_generator::{SkillCandidate, SkillGenerator};
 pub use quality_gate::{QualityGate, QualityReport};
diff --git a/crates/zclaw-growth/src/pattern_aggregator.rs b/crates/zclaw-growth/src/pattern_aggregator.rs
index 0b342d0..eb28c4f 100644
--- a/crates/zclaw-growth/src/pattern_aggregator.rs
+++ b/crates/zclaw-growth/src/pattern_aggregator.rs
@@ -52,15 +52,12 @@ impl PatternAggregator {
             let total_reuse: u32 = experiences.iter().map(|e| e.reuse_count).sum();
             let common_steps = Self::find_common_steps(&experiences);
 
-            // 从 context 字段提取工具名
+            // 从 context 字段提取工具名（context 存储的是触发工具/来源标识）
+            // Experience 结构没有独立的 tools 字段，context 作为来源标识使用
             let tools: Vec<String> = experiences
                 .iter()
-                .flat_map(|e| {
-                    e.context
-                        .split(',')
-                        .map(|s| s.trim().to_string())
-                        .filter(|s| !s.is_empty())
-                })
+                .map(|e| e.context.clone())
+                .filter(|s| !s.is_empty())
                 .collect::<std::collections::HashSet<_>>()
                 .into_iter()
                 .collect();
diff --git a/crates/zclaw-growth/src/profile_updater.rs b/crates/zclaw-growth/src/profile_updater.rs
index e4c2f32..9e8308c 100644
--- a/crates/zclaw-growth/src/profile_updater.rs
+++ b/crates/zclaw-growth/src/profile_updater.rs
@@ -1,11 +1,19 @@
 //! 用户画像增量更新器
-//! 从 CombinedExtraction 的 profile_signals 更新 UserProfileStore
+//! 从 CombinedExtraction 的 profile_signals 提取需要更新的字段
 //! 不额外调用 LLM，纯规则驱动
 
 use crate::types::CombinedExtraction;
 
+/// 待更新的画像字段
+#[derive(Debug, Clone, PartialEq)]
+pub struct ProfileFieldUpdate {
+    pub field: String,
+    pub value: String,
+}
+
 /// 用户画像更新器
-/// 接收 CombinedExtraction 中的 profile_signals，通过回调函数更新画像
+/// 从 CombinedExtraction 的 profile_signals 中提取需更新的字段列表
+/// 调用方（zclaw-runtime）负责实际写入 UserProfileStore
 pub struct UserProfileUpdater;
 
 impl UserProfileUpdater {
@@ -13,31 +21,30 @@ impl UserProfileUpdater {
         Self
     }
 
-    /// 从提取结果更新用户画像
-    /// profile_store 通过闭包注入，避免 zclaw-growth 依赖 zclaw-memory
-    pub async fn update<F>(
+    /// 从提取结果中收集需要更新的画像字段
+    /// 返回 (field, value) 列表，由调用方负责实际的异步写入
+    pub fn collect_updates(
         &self,
-        user_id: &str,
         extraction: &CombinedExtraction,
-        update_fn: F,
-    ) -> zclaw_types::Result<()>
-    where
-        F: Fn(&str, &str, &str) -> zclaw_types::Result<()> + Send + Sync,
-    {
+    ) -> Vec<ProfileFieldUpdate> {
         let signals = &extraction.profile_signals;
+        let mut updates = Vec::new();
 
         if let Some(ref industry) = signals.industry {
-            update_fn(user_id, "industry", industry)?;
+            updates.push(ProfileFieldUpdate {
+                field: "industry".to_string(),
+                value: industry.clone(),
+            });
         }
 
         if let Some(ref style) = signals.communication_style {
-            update_fn(user_id, "communication_style", style)?;
+            updates.push(ProfileFieldUpdate {
+                field: "communication_style".to_string(),
+                value: style.clone(),
+            });
         }
 
-        // pain_point 和 preferred_tool 使用单独的方法（有去重和容量限制）
-        // 这些通过 GrowthIntegration 中的具体调用处理
-
-        Ok(())
+        updates
     }
 }
 
@@ -50,60 +57,37 @@ impl Default for UserProfileUpdater {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::sync::{Arc, Mutex};
 
-    #[tokio::test]
-    async fn test_update_industry() {
-        let calls = Arc::new(Mutex::new(Vec::new()));
-        let calls_clone = calls.clone();
-        let update_fn = move |uid: &str, field: &str, val: &str| -> zclaw_types::Result<()> {
-            calls_clone
-                .lock()
-                .unwrap()
-                .push((uid.to_string(), field.to_string(), val.to_string()));
-            Ok(())
-        };
+    #[test]
+    fn test_collect_updates_industry() {
         let mut extraction = CombinedExtraction::default();
         extraction.profile_signals.industry = Some("healthcare".to_string());
 
         let updater = UserProfileUpdater::new();
-        updater.update("user1", &extraction, update_fn).await.unwrap();
+        let updates = updater.collect_updates(&extraction);
 
-        let locked = calls.lock().unwrap();
-        assert_eq!(locked.len(), 1);
-        assert_eq!(locked[0].1, "industry");
-        assert_eq!(locked[0].2, "healthcare");
+        assert_eq!(updates.len(), 1);
+        assert_eq!(updates[0].field, "industry");
+        assert_eq!(updates[0].value, "healthcare");
     }
 
-    #[tokio::test]
-    async fn test_update_no_signals() {
-        let update_fn =
-            |_: &str, _: &str, _: &str| -> zclaw_types::Result<()> { Ok(()) };
+    #[test]
+    fn test_collect_updates_no_signals() {
         let extraction = CombinedExtraction::default();
         let updater = UserProfileUpdater::new();
-        updater.update("user1", &extraction, update_fn).await.unwrap();
-        // No panic = pass
+        let updates = updater.collect_updates(&extraction);
+        assert!(updates.is_empty());
     }
 
-    #[tokio::test]
-    async fn test_update_multiple_signals() {
-        let calls = Arc::new(Mutex::new(Vec::new()));
-        let calls_clone = calls.clone();
-        let update_fn = move |uid: &str, field: &str, val: &str| -> zclaw_types::Result<()> {
-            calls_clone
-                .lock()
-                .unwrap()
-                .push((uid.to_string(), field.to_string(), val.to_string()));
-            Ok(())
-        };
+    #[test]
+    fn test_collect_updates_multiple_signals() {
         let mut extraction = CombinedExtraction::default();
         extraction.profile_signals.industry = Some("ecommerce".to_string());
         extraction.profile_signals.communication_style = Some("concise".to_string());
 
         let updater = UserProfileUpdater::new();
-        updater.update("user1", &extraction, update_fn).await.unwrap();
+        let updates = updater.collect_updates(&extraction);
 
-        let locked = calls.lock().unwrap();
-        assert_eq!(locked.len(), 2);
+        assert_eq!(updates.len(), 2);
     }
 }
diff --git a/crates/zclaw-growth/src/quality_gate.rs b/crates/zclaw-growth/src/quality_gate.rs
index 766b149..ef0197c 100644
--- a/crates/zclaw-growth/src/quality_gate.rs
+++ b/crates/zclaw-growth/src/quality_gate.rs
@@ -84,6 +84,7 @@ mod tests {
             body_markdown: "# 每日报表\n步骤1\n步骤2".to_string(),
             source_pattern: "报表生成".to_string(),
             confidence: 0.85,
+            version: 1,
         }
     }
 
diff --git a/crates/zclaw-growth/src/skill_generator.rs b/crates/zclaw-growth/src/skill_generator.rs
index c59ae36..f27a480 100644
--- a/crates/zclaw-growth/src/skill_generator.rs
+++ b/crates/zclaw-growth/src/skill_generator.rs
@@ -15,6 +15,8 @@ pub struct SkillCandidate {
     pub body_markdown: String,
     pub source_pattern: String,
     pub confidence: f32,
+    /// 技能版本号，用于后续迭代追踪
+    pub version: u32,
 }
 
 /// LLM 驱动的技能生成 prompt
@@ -59,8 +61,7 @@ impl SkillGenerator {
 
     /// 解析 LLM 返回的 JSON 为 SkillCandidate
     pub fn parse_response(json_str: &str, pattern: &AggregatedPattern) -> Result<SkillCandidate> {
-        // 尝试提取 JSON 块（LLM 可能包裹在 ```json ... ``` 中）
-        let json_str = extract_json_block(json_str);
+        let json_str = crate::json_utils::extract_json_block(json_str);
 
         let raw: serde_json::Value = serde_json::from_str(&json_str).map_err(|e| {
             zclaw_types::ZclawError::ConfigError(format!("Invalid skill JSON: {}", e))
@@ -95,35 +96,11 @@ impl SkillGenerator {
             body_markdown: raw["body_markdown"].as_str().unwrap_or("").to_string(),
             source_pattern: pattern.pain_pattern.clone(),
             confidence: raw["confidence"].as_f64().unwrap_or(0.5) as f32,
+            version: raw["version"].as_u64().unwrap_or(1) as u32,
         })
     }
 }
 
-/// 从 LLM 返回文本中提取 JSON 块
-fn extract_json_block(text: &str) -> &str {
-    // 尝试匹配 ```json ... ```
-    if let Some(start) = text.find("```json") {
-        let json_start = start + 7; // skip ```json
-        if let Some(end) = text[json_start..].find("```") {
-            return text[json_start..json_start + end].trim();
-        }
-    }
-    // 尝试匹配 ``` ... ```
-    if let Some(start) = text.find("```") {
-        let json_start = start + 3;
-        if let Some(end) = text[json_start..].find("```") {
-            return text[json_start..json_start + end].trim();
-        }
-    }
-    // 尝试找 { ... } 块
-    if let Some(start) = text.find('{') {
-        if let Some(end) = text.rfind('}') {
-            return &text[start..=end];
-        }
-    }
-    text.trim()
-}
-
 impl Default for SkillGenerator {
     fn default() -> Self {
         Self::new()
@@ -194,12 +171,12 @@ mod tests {
     #[test]
     fn test_extract_json_block_with_markdown() {
         let text = "Here is the result:\n```json\n{\"key\": \"value\"}\n```\nDone.";
-        assert_eq!(extract_json_block(text), "{\"key\": \"value\"}");
+        assert_eq!(crate::json_utils::extract_json_block(text), "{\"key\": \"value\"}");
     }
 
     #[test]
     fn test_extract_json_block_bare() {
         let text = "{\"key\": \"value\"}";
-        assert_eq!(extract_json_block(text), "{\"key\": \"value\"}");
+        assert_eq!(crate::json_utils::extract_json_block(text), "{\"key\": \"value\"}");
     }
 }
diff --git a/crates/zclaw-growth/src/workflow_composer.rs b/crates/zclaw-growth/src/workflow_composer.rs
index 4323e97..35de7d1 100644
--- a/crates/zclaw-growth/src/workflow_composer.rs
+++ b/crates/zclaw-growth/src/workflow_composer.rs
@@ -90,10 +90,10 @@ impl WorkflowComposer {
     /// 解析 LLM 返回的 JSON 为 PipelineCandidate
     pub fn parse_response(
         json_str: &str,
-        pattern: &ToolChainPattern,
+        _pattern: &ToolChainPattern,
         source_sessions: Vec<String>,
     ) -> Result<PipelineCandidate> {
-        let json_str = extract_json_block(json_str);
+        let json_str = crate::json_utils::extract_json_block(json_str);
         let raw: serde_json::Value = serde_json::from_str(&json_str).map_err(|e| {
             zclaw_types::ZclawError::ConfigError(format!("Invalid pipeline JSON: {}", e))
         })?;
@@ -118,28 +118,6 @@ impl WorkflowComposer {
     }
 }
 
-/// 从 LLM 返回文本中提取 JSON 块
-fn extract_json_block(text: &str) -> &str {
-    if let Some(start) = text.find("```json") {
-        let json_start = start + 7;
-        if let Some(end) = text[json_start..].find("```") {
-            return text[json_start..json_start + end].trim();
-        }
-    }
-    if let Some(start) = text.find("```") {
-        let json_start = start + 3;
-        if let Some(end) = text[json_start..].find("```") {
-            return text[json_start..json_start + end].trim();
-        }
-    }
-    if let Some(start) = text.find('{') {
-        if let Some(end) = text.rfind('}') {
-            return &text[start..=end];
-        }
-    }
-    text.trim()
-}
-
 impl Default for WorkflowComposer {
     fn default() -> Self {
         Self::new()
diff --git a/crates/zclaw-runtime/src/growth.rs b/crates/zclaw-runtime/src/growth.rs
index 624a06d..102399b 100644
--- a/crates/zclaw-runtime/src/growth.rs
+++ b/crates/zclaw-runtime/src/growth.rs
@@ -324,25 +324,21 @@ impl GrowthIntegration {
 
         // Update user profile from extraction signals (L1 enhancement)
         if let Some(profile_store) = &self.profile_store {
-            let _store = profile_store.clone();
-            let user_id = agent_id.to_string();
-            if let Err(e) = self
+            let updates = self
                 .profile_updater
-                .update(&user_id, &combined_extraction, move |uid, field, val| {
-                    // Synchronous wrapper — the actual update_field is async,
-                    // but we're already in an async context so we handle it via a future
-                    // For now, log and let the store handle it
-                    tracing::debug!(
-                        "[GrowthIntegration] Profile update: {} {}={}",
-                        uid,
-                        field,
-                        val
+                .collect_updates(&combined_extraction);
+            let user_id = agent_id.to_string();
+            for update in updates {
+                if let Err(e) = profile_store
+                    .update_field(&user_id, &update.field, &update.value)
+                    .await
+                {
+                    tracing::warn!(
+                        "[GrowthIntegration] Profile update failed for {}: {}",
+                        update.field,
+                        e
                     );
-                    Ok(())
-                })
-                .await
-            {
-                tracing::warn!("[GrowthIntegration] Profile update failed: {}", e);
+                }
             }
         }
 
diff --git a/crates/zclaw-runtime/src/middleware/evolution.rs b/crates/zclaw-runtime/src/middleware/evolution.rs
index af35b71..4b42b66 100644
--- a/crates/zclaw-runtime/src/middleware/evolution.rs
+++ b/crates/zclaw-runtime/src/middleware/evolution.rs
@@ -68,13 +68,17 @@ impl AgentMiddleware for EvolutionMiddleware {
         &self,
         ctx: &mut MiddlewareContext,
     ) -> Result<MiddlewareDecision> {
-        let pending = self.pending.read().await;
-        if pending.is_empty() {
-            return Ok(MiddlewareDecision::Continue);
-        }
+        let to_inject = {
+            let mut pending = self.pending.write().await;
+            if pending.is_empty() {
+                return Ok(MiddlewareDecision::Continue);
+            }
+            // 只取第一条（最近的）事件注入，避免信息过载
+            // drain 已注入的事件，防止重复注入
+            std::mem::take(&mut *pending)
+        };
 
-        // 只在第一条（最近的）事件上触发提示，避免信息过载
-        if let Some(evolution) = pending.first() {
+        if let Some(evolution) = to_inject.into_iter().next() {
             let injection = format!(
                 "\n\n<evolution-suggestion>\n\
                  我注意到你经常做「{pattern}」相关的事情。\n\