diff --git a/pipeline_service/agent_loop.py b/pipeline_service/agent_loop.py
index abb4d7a..6f849f9 100644
--- a/pipeline_service/agent_loop.py
+++ b/pipeline_service/agent_loop.py
@@ -383,6 +383,8 @@ __QNA__
 工作空间：__WORKSPACE__
 产出要求：__ROLE_SPECIFIC__
 
+__ROLE_SKILLS__
+
 ## 工具
 你可以使用以下工具完成工作：
 __TOOLS__
@@ -1086,6 +1088,44 @@ async def _build_fallback_deliverable(workspace_dir, written_files, repos_dir, r
     }
 
 
+async def _build_role_skills_block(sor, project_id, role, org_id=""):
+    """为角色 agent 构建技能注入块。
+
+    角色专属技能（scope=role，即 pipelines/{pid}/roles/{role}/）全量注入正文——
+    角色 agent 无 load_skill 工具，且角色技能数量少、是角色必须遵守的领域规范。
+    其余 scope（项目/产线/机构/通用）注入目录层（名字+描述），按优先级降序排列，
+    优先级（同名覆盖，高→低）：项目 > 角色 > 产线 > 机构 > 通用（SCOPE_PRIORITY 已定义）。
+    返回注入 system prompt 的文本，无技能或失败时返回空串。
+    """
+    try:
+        pid = await _resolve_pipeline_id(project_id)
+        from pipeline_core.skill_loader import get_skill_loader, SCOPE_PRIORITY
+        from pipeline_core.skill_pack import ensure_org_skills
+        from .workspace import get_workspace_base
+        ws_base = await get_workspace_base(sor)
+        skills_dir = ensure_org_skills(ws_base, org_id or '0')
+        loader = get_skill_loader(skills_dir)
+        merged = loader.get_merged(pipeline_id=pid, role=role,
+                                   project_id=project_id, org_id=org_id or '0')
+        if not merged:
+            return ""
+        blocks = []
+        role_skills = [s for s in merged.values() if getattr(s, 'scope', '') == 'role']
+        for s in role_skills:
+            blocks.append(s.to_prompt_block())
+        others = sorted([s for s in merged.values() if getattr(s, 'scope', '') != 'role'],
+                        key=lambda s: -SCOPE_PRIORITY.get(getattr(s, 'scope', ''), 0))
+        if others:
+            lines = ["## 可用技能（目录，优先级 项目>机构>通用）"]
+            for s in others[:30]:
+                lines.append(f"- [{getattr(s, 'scope', '')}] {s.name}: {(s.description or '')[:100]}")
+            blocks.append("\n".join(lines))
+        return "\n\n".join(blocks)
+    except Exception as e:
+        logger.warning(f"role skills load failed: {e}")
+        return ""
+
+
 async def role_agent_run(project_id, role, agent_id=None, model_name=None):
     role, _role_specific, _ = await _resolve_role(project_id, role)
     if role == 'pm':
@@ -1123,12 +1163,16 @@ async def role_agent_run(project_id, role, agent_id=None, model_name=None):
         qna_section = await _build_qna_section(sor, task_id, role, agent_id)
         tools_text = json.dumps(AGENT_TOOLS, ensure_ascii=False)
 
+        # 注入角色技能（角色专属技能全量 + 其余 scope 目录层，优先级 项目>机构>通用）
+        role_skills = await _build_role_skills_block(sor, project_id, role, org_id)
+
         system = (AGENT_SYSTEM_PROMPT
                   .replace('__ROLE__', role)
                   .replace('__TITLE__', title)
                   .replace('__QNA__', qna_section)
                   .replace('__WORKSPACE__', workspace_dir)
                   .replace('__ROLE_SPECIFIC__', role_specific)
+                  .replace('__ROLE_SKILLS__', role_skills)
                   .replace('__TOOLS__', tools_text))
 
         msgs = [{"role": "system", "content": system}]