diff --git a/governance/REPOS.yaml b/governance/REPOS.yaml
index b0e417a..de47b5b 100644
--- a/governance/REPOS.yaml
+++ b/governance/REPOS.yaml
@@ -95,6 +95,16 @@ repos:
       存量豁免，仅面向新服务选型）；治理面已接入：gate（CI-Workflows@v1 聚合）/automerge/
       scorecard/CODEOWNERS/dependabot + App 挂载（AG-4）+ production environment（RL-1）
 
+  - name: mutual
+    layer: L2
+    visibility: public
+    status: active
+    role: 产品仓——LLM 双向互惠推荐引擎（Go+BAML 重写，ADR-0027；源自 gitcode.com/feasylol/mutual
+      存量 Python 项目：11 阶段流水线 / NSW 匹配 + envy-freeness / HR@K/NDCG@5 评测门禁；
+      Python 基线为一次性存量导入豁免——仅作重写参照与 golden fixtures 来源，重写合并后
+      语言面收敛为 Go+BAML）
+    key_paths: [src/mutual/, spec/, tests/golden/]
+
 # 上游依赖（不属于本组织；不 fork、不 submodule）
 # 治理方式：声明于此 + 部署渲染时 clone 并 pin tag（ADR-0002 rev1）
 external_upstreams:
diff --git a/governance/expected-state.json b/governance/expected-state.json
index 21721dc..3237bf7 100644
--- a/governance/expected-state.json
+++ b/governance/expected-state.json
@@ -69,6 +69,9 @@
     ],
     "agent-platform": [
       "fecdb13d607b584063cadd717d2a7706327fbfa0"
+    ],
+    "mutual": [
+      "f5d9b5b58d4dc30a2b0e259449862fc4a3c91f6b"
     ]
   }
 }