diff --git a/src/api/blackboard_routes.py b/src/api/blackboard_routes.py
index cad2fcd..a2389a6 100644
--- a/src/api/blackboard_routes.py
+++ b/src/api/blackboard_routes.py
@@ -38,12 +38,28 @@ async def list_tasks(project_id: str,
 
 
 @router.get("/tasks/{task_id}")
-async def get_task(project_id: str, task_id: str):
+async def get_task(project_id: str, task_id: str,
+                       expand: Optional[str] = None):
     bb = _bb(project_id)
     task = bb.get_task(task_id)
     if not task:
         raise HTTPException(404, f"Task not found: {task_id}")
-    return _task_to_dict(task)
+    result = _task_to_dict(task)
+    if expand == "all":
+        q = _q(project_id)
+        detail = q.task_detail(task_id)
+        if detail:
+            result["comments_count"] = detail.get("comments_count", 0)
+            result["outputs_count"] = detail.get("outputs_count", 0)
+            result["review_status"] = detail.get("review_status")
+            result["latest_event_detail"] = detail.get("latest_event_detail")
+        result["comments"] = [dict(c.__dict__) for c in bb.get_comments(task_id)]
+        result["outputs"] = [dict(o.__dict__) for o in bb.get_outputs(task_id)]
+        result["reviews"] = [dict(r.__dict__) for r in bb.get_reviews(task_id)]
+        result["decisions"] = [dict(d.__dict__) for d in bb.get_decisions(task_id)]
+        result["events"] = q.task_events(task_id)
+        result["experiences"] = q.task_experiences(task_id)
+    return result
 
 
 @router.post("/tasks")
@@ -104,11 +120,13 @@ async def add_comment(project_id: str, task_id: str, body: Dict[str, Any]):
 @router.get("/tasks/{task_id}/outputs")
 async def get_outputs(project_id: str, task_id: str):
     bb = _bb(project_id)
-    return {"outputs": [dict(o.__dict__) for o in bb.get_outputs(task_id)]}
+    return {"decisions": [dict(d.__dict__) for d in bb.get_decisions(task_id)]}
 
 
-@router.post("/tasks/{task_id}/outputs")
-async def write_output(project_id: str, task_id: str, body: Dict[str, Any]):
+# --- Per-task Decisions (POST) ---
+
+@router.post("/tasks/{task_id}/decisions")
+async def add_decision(project_id: str, task_id: str, body: Dict[str, Any]):
     bb = _bb(project_id)
     oid = bb.write_output(task_id, body["agent"], body["type"],
                            body["title"], content_path=body.get("path"),
@@ -161,6 +179,19 @@ async def add_review(project_id: str, task_id: str, body: Dict[str, Any]):
 
 # --- Events ---
 
+@router.get("/tasks/{task_id}/events")
+async def get_task_events(project_id: str, task_id: str,
+                               limit: int = Query(50, le=200)):
+    q = _q(project_id)
+    return {"events": q.task_events(task_id, limit)}
+
+
+@router.get("/tasks/{task_id}/experiences")
+async def get_task_experiences(project_id: str, task_id: str):
+    q = _q(project_id)
+    return {"experiences": q.task_experiences(task_id)}
+
+
 @router.get("/events")
 async def get_events(project_id: str, limit: int = Query(50, le=200)):
     q = _q(project_id)