feat: load_skill工具handler(按需加载技能正文)

pipeline_service/agent_loop_v2.py

@@ -626,6 +626,7 @@ class AgentExecutor:
             "run_command": self._t_run_command,
             # ── 通用工具集（Hermes CLI 能力子集）──
             "read_file": self._t_read_file,
+            "load_skill": self._t_load_skill,
             "write_file": self._t_write_file,
             "list_files": self._t_list_files,
             "search_files": self._t_search_files,
@@ -793,6 +794,23 @@ class AgentExecutor:
         except Exception as e:
             return f"ERROR: {str(e)[:300]}"
 
+    async def _t_load_skill(self, sor, p, pid):
+        name = (p.get("name") or "").strip()
+        if not name:
+            return "FAIL: 需要技能名称"
+        if not self._skill_loader:
+            return "FAIL: 技能系统未初始化"
+        merged = self._skill_loader.get_merged(
+            pipeline_id=self.pipeline_id or "",
+            role=self.role or "",
+            project_id=self.project_id or "",
+            org_id=self.org_id or "",
+            user_id=self.user_id or "")
+        if name not in merged:
+            names = ", ".join(sorted(merged.keys())) or "（无可用技能）"
+            return f"FAIL: 技能 '{name}' 不存在。可用技能: {names}"
+        return merged[name].to_prompt_block()
+
     async def _t_write_file(self, sor, p, pid):
         path = p.get("path", "")
         content = p.get("content", "")