diff --git a/crates/zclaw-growth/src/experience_store.rs b/crates/zclaw-growth/src/experience_store.rs
index 8943c9d..1f999c7 100644
--- a/crates/zclaw-growth/src/experience_store.rs
+++ b/crates/zclaw-growth/src/experience_store.rs
@@ -126,7 +126,16 @@ impl ExperienceStore {
 
         // If an experience with this URI already exists, merge instead of overwrite.
         if let Some(existing_entry) = self.viking.get(&uri).await? {
-            if let Ok(existing) = serde_json::from_str::<Experience>(&existing_entry.content) {
+            let existing = match serde_json::from_str::<Experience>(&existing_entry.content) {
+                Ok(e) => e,
+                Err(e) => {
+                    warn!("[ExperienceStore] Failed to deserialize existing experience at {}: {}, overwriting", uri, e);
+                    // Fall through to store new experience as overwrite
+                    self.write_entry(&uri, exp).await?;
+                    return Ok(());
+                }
+            };
+            {
                 let merged = Experience {
                     id: existing.id.clone(),
                     reuse_count: existing.reuse_count + 1,
diff --git a/crates/zclaw-hands/src/hands/browser.rs b/crates/zclaw-hands/src/hands/browser.rs
index 70ecef0..07130d0 100644
--- a/crates/zclaw-hands/src/hands/browser.rs
+++ b/crates/zclaw-hands/src/hands/browser.rs
@@ -1,7 +1,7 @@
 //! Browser Hand - Web automation capabilities (TypeScript delegation)
 //!
 //! **Architecture note (M3-02):** This Rust Hand is a **schema validator and passthrough**.
-//! Every action returns `{"status": "pending_execution"}` — no real browser work happens here.
+//! Every action returns `{"status": "delegated_to_frontend"}` — no real browser work happens here.
 //!
 //! The actual execution path is:
 //! 1. Frontend `HandsPanel.tsx` intercepts browser hands → routes to `BrowserHandCard`
diff --git a/wiki/log.md b/wiki/log.md
index 5eb1749..3af231c 100644
--- a/wiki/log.md
+++ b/wiki/log.md
@@ -19,7 +19,7 @@ tags: [log, history]
 - Hand 执行前端字段映射: instance_id → runId (kernel-hands.ts + gateway-api.ts)
 - Heartbeat 痛点感知: PAIN_POINTS_CACHE + VikingStorage 持久化 + 未解决痛点检查 (heartbeat.rs)
 - Browser Hand 委托消息: pending_execution → delegated_to_frontend + 中文摘要 (browser.rs)
-- 跨会话记忆检索增强: IdentityRecall 模式 26→43 + 弱身份信号 + 低结果 fallback (query.rs + retriever.rs)
+- 跨会话记忆检索增强: IdentityRecall 模式 26→54 + 弱身份信号(9个) + 低结果 fallback (query.rs + retriever.rs)
 - Twitter Hand 凭据持久化: SetCredentials action + 文件持久化 + 启动恢复 (twitter.rs)
 - Browser 测试适配: 新响应格式断言修复
 
@@ -34,6 +34,14 @@ tags: [log, history]
 
 **6 个集成测试**: 经验累积触发/阈值过滤/多模式独立/SkillGenerator prompt/QualityGate验证/FeedbackCollector计分。全量 918 PASS。
 
+## [2026-04-21] fix | 穷尽审计后 3 项修复 (browser doc / experience_store warn / identity pattern count)
+
+- browser.rs: 过时文档注释 `pending_execution` → `delegated_to_frontend`
+- experience_store.rs: merge 反序列化失败时添加 `warn!()` 日志 + fallback 覆写
+- wiki/log.md: identity_patterns 数量更正 43→54
+
+验证: cargo check 0 error | cargo test 112 PASS (growth+hands)
+
 ## [2026-04-20] fix | 50 轮功能链路审计 7 项断链修复 (commit f291736)
 
 **审计报告**: `docs/test-evidence/FUNCTIONAL_CHAIN_AUDIT_2026_04_20.md`