diff --git a/pipeline_service/sdlc_ability.py b/pipeline_service/sdlc_ability.py
index e089ebe..86bf83f 100644
--- a/pipeline_service/sdlc_ability.py
+++ b/pipeline_service/sdlc_ability.py
@@ -1475,6 +1475,39 @@ async def _slash_tasks(args, ctx):
     return r or "无任务"
 
 
+async def _slash_task(args, ctx):
+    """任务树 + 输入输出（ResourceBrowser 弹窗）。返回 widget dict，前端 AgentOut 检测 widgettype 渲染。"""
+    return {
+        "widgettype": "PopupWindow",
+        "options": {
+            "title": "任务树 - 输入输出",
+            "width": "85%",
+            "height": "80%",
+            "auto_open": True,
+        },
+        "subwidgets": [{
+            "widgettype": "ResourceBrowser",
+            "id": "task_rb",
+            "options": {
+                "tree_options": {
+                    "widgettype": "Tree",
+                    "options": {
+                        "dataurl": "/pipeline-sdlc/api/task_tree.dspy",
+                        "textField": "label",
+                        "idField": "id",
+                        "cfontsize": 1.0,
+                    },
+                },
+                "browser_options": {
+                    "widgettype": "urlwidget",
+                    "options": {"url": "/pipeline-sdlc/api/task_io.dspy"},
+                },
+                "tree_width": "300px",
+            },
+        }],
+    }
+
+
 async def _slash_diagnose(args, ctx):
     ex = ctx.get("executor")
     r = await ex._execute_ability_tool("diagnose_project", {}) if ex else None
@@ -1484,6 +1517,7 @@ async def _slash_diagnose(args, ctx):
 def register_sdlc_slash_commands():
     for cmd in [
         SlashCommand("tasks", "列出任务（可按角色筛选）", _slash_tasks, "pipeline", "sdlc_general"),
+        SlashCommand("task", "任务树+输入输出（弹窗）", _slash_task, "pipeline", "sdlc_general"),
         SlashCommand("diagnose", "诊断项目状态", _slash_diagnose, "pipeline", "sdlc_general"),
     ]:
         register_slash_command(cmd)