diff --git a/src/frontend/dashboard/server.py b/src/frontend/dashboard/server.py
index c3d3bac..4bb2d1a 100644
--- a/src/frontend/dashboard/server.py
+++ b/src/frontend/dashboard/server.py
@@ -621,7 +621,8 @@ async def _with_client(
         self, username: str = "", timeout_seconds: float | None = None
     ) -> AutomationIPCClient:
         owner_id = username.strip() or "root"
-        source = "web" if username.strip() else "dashboard"
+        # Memory paths and session IDs use the web: prefix; keep IPC source aligned.
+        source = "web"
         kwargs: Dict[str, Any] = {
             "source": source,
             "owner_id": owner_id,
@@ -736,9 +737,7 @@ async def chat(self, text: str, *, session_id: str | None = None, username: str
                     "token_usage": usage,
                     "turn_count": turn_count,
                 }
-            result = await client.run_turn(
-                AgentRunInput(text=text, metadata={"source": "dashboard"})
-            )
+            result = await client.run_turn(AgentRunInput(text=text))
             usage = await client.get_token_usage()
             turn_count = await client.get_turn_count()
             return {
@@ -841,7 +840,7 @@ async def _on_ask_user_notify(
             async def _runner() -> None:
                 try:
                     holder["result"] = await client.run_turn(
-                        AgentRunInput(text=text, metadata={"source": "dashboard"}),
+                        AgentRunInput(text=text),
                         hooks=hooks,
                     )
                 except Exception as exc:  # noqa: BLE001
diff --git a/src/system/kernel/core_pool.py b/src/system/kernel/core_pool.py
index d219e14..615eb90 100644
--- a/src/system/kernel/core_pool.py
+++ b/src/system/kernel/core_pool.py
@@ -78,7 +78,7 @@ def _resolve_core_owner(
     sid = (session_id or "").strip()
     src = (source or "").strip() or "cli"
     uid = (user_id or "").strip() or "root"
-    if not sid.startswith(("feishu:", "sub:", "cron:", "shuiyuan:")):
+    if not sid.startswith(("feishu:", "sub:", "cron:", "shuiyuan:", "web:")):
         return src, uid
     inferred_s, inferred_u = _infer_owner_from_session_id(sid)
     if src == "cli":
diff --git a/tests/test_core_owner_resolve.py b/tests/test_core_owner_resolve.py
index 8327104..96328f4 100644
--- a/tests/test_core_owner_resolve.py
+++ b/tests/test_core_owner_resolve.py
@@ -35,3 +35,11 @@ def test_resolve_fills_feishu_user_when_root_placeholder():
 
 def test_resolve_leaves_cli_session_alone():
     assert _resolve_core_owner("cli:root", "cli", "root") == ("cli", "root")
+
+
+def test_resolve_overrides_cli_default_for_web_session():
+    assert _resolve_core_owner("web:alice", "cli", "root") == ("web", "alice")
+
+
+def test_resolve_keeps_explicit_web_owner():
+    assert _resolve_core_owner("web:alice", "web", "alice") == ("web", "alice")
diff --git a/tests/test_kernel_runtime.py b/tests/test_kernel_runtime.py
index 8b35b2b..a64b322 100644
--- a/tests/test_kernel_runtime.py
+++ b/tests/test_kernel_runtime.py
@@ -61,6 +61,17 @@ def test_memory_owner_agent_msg_uses_session_id_not_frontend_tag() -> None:
     assert memory_owner_for_kernel_acquire(req3) == ("cli", "root")
 
 
+def test_dashboard_web_session_memory_owner_matches_history_path() -> None:
+    """Dashboard IPC uses source=web; gateway must not override to dashboard:*."""
+    req = KernelRequest.create(
+        text="hi",
+        session_id="web:alice",
+        frontend_id="web",
+        metadata={"source": "web", "user_id": "alice"},
+    )
+    assert memory_owner_for_kernel_acquire(req) == ("web", "alice")
+
+
 @pytest.mark.asyncio
 async def test_kernel_propagates_return_status_in_metadata() -> None:
     from agent_core.kernel_interface.action import ReturnAction