diff --git a/docs/design/19-skill-lifecycle-and-experience-loop.md b/docs/design/19-skill-lifecycle-and-experience-loop.md
index 2c60b86..7466829 100644
--- a/docs/design/19-skill-lifecycle-and-experience-loop.md
+++ b/docs/design/19-skill-lifecycle-and-experience-loop.md
@@ -503,7 +503,7 @@ S1 和 S2 已完成（PR #85）。S3-S5 设计见下方 §11A。
     "message": "L1 自蒸馏 cron。请执行：\n1. read ~/.sanguo_projects/sanguo_mozi/skills/skill-management/SKILL.md\n2. read ~/.sanguo_projects/sanguo_mozi/skills/skill-management/references/discover-l1.md\n3. 按 discover-l1.md 步骤执行自蒸馏\n4. 如有信号：蒸馏为 HOW 格式，使用 skill_workshop(action=create) 提交 draft proposal\n5. 如无有价值信号：不产出，这是正常的",
     "timeoutSeconds": 600
   },
-  "delivery": { "mode": "none" }
+  "delivery": { "mode": "announce" }
 }
 ```
 
@@ -533,7 +533,7 @@ S1 和 S2 已完成（PR #85）。S3-S5 设计见下方 §11A。
     "message": "L2 整合审查 cron。请执行：\n1. read ~/.sanguo_projects/sanguo_mozi/skills/skill-management/references/discover-l2.md\n2. 按 discover-l2.md 步骤执行：\n   a. skill_workshop(action=list, status=pending) 获取所有 L1 draft proposals\n   b. 全量数据源扫描，识别跨 agent 共性模式\n   c. 逐个审查 proposal：approve / merge / reject\n   d. 全局提升检查（Recurrence-Count >= 3 的经验提升为规则）\n   e. 知识缺口反馈到 knowledge-gaps.md",
     "timeoutSeconds": 1200
   },
-  "delivery": { "mode": "none" }
+  "delivery": { "mode": "announce" }
 }
 ```
 
@@ -562,7 +562,7 @@ S1 和 S2 已完成（PR #85）。S3-S5 设计见下方 §11A。
     "message": "IMPROVE 每周引用追踪 cron。请执行：\n1. read ~/.sanguo_projects/sanguo_mozi/skills/skill-management/references/improve.md\n2. 按 improve.md 步骤执行：\n   a. 扫描过去 7 天所有 agent 的 session JSONL，采集 Skill 引用信号\n   b. 生成淘汰候选报告（30 天无引用的 Skill）\n   c. 庞统审阅决策：quarantine / 保留观察 / 更新后保留\n   d. 经验提升检查（被频繁引用 >= 5 次的 Skill）\n   e. 反馈知识缺口到 knowledge-gaps.md",
     "timeoutSeconds": 1800
   },
-  "delivery": { "mode": "none" }
+  "delivery": { "mode": "announce" }
 }
 ```