diff --git a/wwwroot/api/skill_proposals.dspy b/wwwroot/api/skill_proposals.dspy
index 4c65849..c2f2e34 100644
--- a/wwwroot/api/skill_proposals.dspy
+++ b/wwwroot/api/skill_proposals.dspy
@@ -91,9 +91,17 @@ async with DBPools().sqlorContext(dbname) as sor:
             return json.dumps({"success": False, "error": "提议缺少 name 或 content"},
                               ensure_ascii=False)
 
-        # 写 SKILL.md 到全局模板 skills/global/{name}/（单一技能树，所有机构共享读，无需同步副本）
+        # 写 SKILL.md 到技能树。落点按提案 org_id 分流（机构技能层架构）：
+        # - org_id='0'（ocai 组织/平台缺省）→ skills/global/{name}/（平台通用规范，所有组织缺省共享）
+        # - org_id≠'0'（其他组织）→ skills/orgs/{org_id}/{name}/（组织自有开发规范，
+        #   经 get_merged 的 org 缺省继承 + 组织覆盖机制，该组织项目角色可见且覆盖 ocai 同名）
         from pipeline_core.skill_pack import get_skills_base
-        skill_dir = os.path.join(get_skills_base(), "global", name)
+        proposal_org = (getattr(r, 'org_id', '') or '').strip() or '0'
+        base = get_skills_base()
+        if proposal_org and proposal_org != '0':
+            skill_dir = os.path.join(base, "orgs", proposal_org, name)
+        else:
+            skill_dir = os.path.join(base, "global", name)
         os.makedirs(skill_dir, exist_ok=True)
         with open(os.path.join(skill_dir, "SKILL.md"), "w", encoding="utf-8") as f:
             f.write(content)