diff --git a/plugins/_agent_editor/AGENTS.md b/plugins/_agent_editor/AGENTS.md
index b32322fe5..d19032cc1 100644
--- a/plugins/_agent_editor/AGENTS.md
+++ b/plugins/_agent_editor/AGENTS.md
@@ -68,7 +68,8 @@
   row exposes scoped availability, duplication, restore for inherited profiles,
   icon-only Edit, and Delete for profiles owned by that scope. Duplicate
   materializes the effective source profile into the selected writable layer
-  with a collision-free ID and title.
+  with a collision-free ID and title. Restore visibility follows the sparse
+  removal plan, ignores unrelated profile files, and reports successful reset.
   Availability changes quietly refresh the adjacent profile switcher catalog
   without a success toast.
 - The same project selector is available inside Create and Edit. Create keeps
diff --git a/plugins/_agent_editor/helpers/editor.py b/plugins/_agent_editor/helpers/editor.py
index 59105f57d..3920f7b52 100644
--- a/plugins/_agent_editor/helpers/editor.py
+++ b/plugins/_agent_editor/helpers/editor.py
@@ -166,12 +166,6 @@ def _profile_root(profile_id: str, project_name: str = "") -> Path:
     )
 
 
-def _scope_has_files(root: Path) -> bool:
-    return root.is_dir() and any(
-        path.is_file() or path.is_symlink() for path in root.rglob("*")
-    )
-
-
 def _scope_owns_custom_profile(profile_id: str, project_name: str) -> bool:
     if not _profile_root(profile_id, project_name).is_dir():
         return False
@@ -222,7 +216,10 @@ def list_profiles(context: Any | None = None) -> list[dict[str, Any]]:
                 "origin": state["origin"],
                 "origin_chain": state["origin_chain"],
                 "built_in": state["built_in"],
-                "scope_has_overrides": state["scope_has_overrides"],
+                "scope_has_overrides": bool(
+                    profile_exists(profile_id, context)
+                    and plan_remove_changes(profile_id, context).changes
+                ),
                 "deletable": state["deletable"],
                 "avatar": state["avatar"]["effective"],
                 "avatar_url": effective_avatar_url(profile_id, context),
@@ -348,7 +345,10 @@ def build_profile_state(
         "origin": metadata.pop("origin"),
         "origin_chain": metadata.pop("origin_chain"),
         "built_in": metadata.pop("built_in"),
-        "scope_has_overrides": metadata.pop("scope_has_overrides"),
+        "scope_has_overrides": bool(
+            profile_exists(profile_id, context)
+            and plan_remove_changes(profile_id, context).changes
+        ),
         "deletable": metadata.pop("deletable"),
         "metadata": metadata,
         "avatar_url": effective_avatar_url(profile_id, context),
@@ -378,7 +378,6 @@ def metadata_state(profile_id: str, context: Any | None = None) -> dict[str, Any
             "inherited_source": _relative_source(inherited_source),
         }
 
-    scope_root = _profile_root(profile_id, project_name)
     built_in = (Path(files.get_abs_path("agents")) / profile_id).is_dir()
     plugin_origin = any(layer.kind == "plugin" for layer in layers)
     state.update(
@@ -386,7 +385,6 @@ def metadata_state(profile_id: str, context: Any | None = None) -> dict[str, Any
             "origin": "Built-in" if built_in else "Plugin" if plugin_origin else "Custom",
             "origin_chain": list(dict.fromkeys(layer.kind for layer in layers)),
             "built_in": built_in,
-            "scope_has_overrides": _scope_has_files(scope_root),
             "deletable": _scope_owns_custom_profile(profile_id, project_name),
         }
     )
diff --git a/plugins/_agent_editor/webui/agent-editor-store.js b/plugins/_agent_editor/webui/agent-editor-store.js
index b0e4712b6..1bfabd8b4 100644
--- a/plugins/_agent_editor/webui/agent-editor-store.js
+++ b/plugins/_agent_editor/webui/agent-editor-store.js
@@ -346,6 +346,10 @@ const model = {
         ...this.scopeInput(),
       });
       await this.loadProfiles();
+      globalThis.justToast?.(
+        `${profile.title || profile.id} reset to default.`,
+        "success", 1800, "agent-profile-reset",
+      );
       await modelConfigStore.loadAgentProfiles(true);
       if (editorState) {
         await this.loadEditor(profile.id, false);
@@ -1275,7 +1279,7 @@ const model = {
         context_id: created.ctxid,
         ...(scopeProject ? { name: scopeProject } : {}),
       });
-      await callJsonApi("/agent_profile_set", {
+      const selectedProfile = await callJsonApi("/agent_profile_set", {
         context_id: created.ctxid,
         agent_profile: profileId,
       });
@@ -1288,6 +1292,10 @@ const model = {
         try { sessionStorage.setItem(READY_NOTE_KEY, created.ctxid); } catch {}
       }
       await chatsStore.selectChat(created.ctxid);
+      if (chatsStore.selectedContext) {
+        chatsStore.selectedContext.agent_profile = selectedProfile.agent_profile || profileId;
+        chatsStore.selectedContext.agent_profile_label = selectedProfile.agent_profile_label || profileId;
+      }
       document.dispatchEvent(new CustomEvent("chat-created", { detail: { ctxid: created.ctxid } }));
       return created.ctxid;
     } catch (error) {
diff --git a/plugins/_agent_editor/webui/main.html b/plugins/_agent_editor/webui/main.html
index 1a3e91d7c..45c05e9e1 100644
--- a/plugins/_agent_editor/webui/main.html
+++ b/plugins/_agent_editor/webui/main.html
@@ -156,7 +156,7 @@
             <div class="agent-field agent-model-preset">
               <label for="agent-editor-easy-model-preset" class="agent-field-label">Model preset</label>
               <div class="agent-model-preset-picker">
-                <select id="agent-editor-easy-model-preset" x-model="$store.agentEditor.draft.modelPreset">
+                <select id="agent-editor-easy-model-preset" x-model="$store.agentEditor.draft.modelPreset" x-effect="$nextTick(() => { $el.value = $store.agentEditor.draft.modelPreset })">
                   <option value="" x-text="`Use current preset (${$store.agentEditor.state.model_preset.effective})`"></option>
                   <template x-for="preset in $store.agentEditor.state.model_presets" :key="preset.name">
                     <option :value="preset.name" x-text="preset.name"></option>
@@ -259,7 +259,7 @@
                 <div class="agent-field wide agent-model-preset">
                   <label for="agent-editor-model-preset" class="agent-field-label">Model preset</label>
                   <div class="agent-model-preset-picker">
-                    <select id="agent-editor-model-preset" x-model="$store.agentEditor.draft.modelPreset">
+                    <select id="agent-editor-model-preset" x-model="$store.agentEditor.draft.modelPreset" x-effect="$nextTick(() => { $el.value = $store.agentEditor.draft.modelPreset })">
                       <option value="" x-text="`Use current preset (${$store.agentEditor.state.model_preset.effective})`"></option>
                       <template x-for="preset in $store.agentEditor.state.model_presets" :key="preset.name">
                         <option :value="preset.name" x-text="preset.name"></option>
diff --git a/tests/test_agent_editor.py b/tests/test_agent_editor.py
index d2f3354fe..2d8be3aa9 100644
--- a/tests/test_agent_editor.py
+++ b/tests/test_agent_editor.py
@@ -351,6 +351,15 @@ def test_plugin_configs_preserve_unowned_keys_and_use_json(user_root: Path) -> N
     assert skill_data["active_skills"] == [{"name": "existing"}]
     assert skill_data["visibility_policy"]["default"] == "block"
 
+    editor.apply_change_plan(editor.plan_remove_changes("researcher"))
+
+    assert json.loads(model.read_text()) == {"manual": 1}
+    assert json.loads(tools.read_text()) == {"manual": 2}
+    assert json.loads(skill.read_text()) == {
+        "active_skills": [{"name": "existing"}]
+    }
+    assert editor.build_profile_state("researcher")["scope_has_overrides"] is False
+
 
 def test_model_and_off_tool_choices_write_only_their_json_contracts(
     user_root: Path,
diff --git a/tests/test_agent_editor_webui.py b/tests/test_agent_editor_webui.py
index 2ab3c07e6..d6630d0ba 100644
--- a/tests/test_agent_editor_webui.py
+++ b/tests/test_agent_editor_webui.py
@@ -75,6 +75,7 @@ def test_agent_editor_surface_has_normative_entry_points_and_accessible_controls
     assert "No optional tools" not in modal
     assert 'class="agent-model-preset-picker"' in modal
     assert modal.count('x-model="$store.agentEditor.draft.modelPreset"') == 2
+    assert modal.count('$el.value = $store.agentEditor.draft.modelPreset') == 2
     assert 'id="agent-editor-easy-model-preset"' in easy_surface
     easy_identity = easy_surface[easy_surface.index('<section class="agent-easy-identity">'):easy_surface.index('<section class="agent-easy-field">')]
     assert easy_identity.index('id="agent-editor-name"') < easy_identity.index('id="agent-editor-easy-model-preset"')
@@ -304,13 +305,18 @@ def test_local_slugging_and_fresh_chat_profile_selection_are_deterministic() ->
     harness = r"""
 const calls = [];
 const confirmations = [];
+const toasts = [];
 let setEnabledHandler = null;
 let loadHandler = null;
+let profilesHandler = null;
 let confirmResult = false;
 const createStore = (_name, value) => value;
 const callJsonApi = async (endpoint, payload) => {
   calls.push({ endpoint, payload });
   if (payload?.action === "load" && loadHandler) return loadHandler(payload);
+  if (payload?.action === "list") return profilesHandler
+    ? profilesHandler(payload)
+    : { ok: true, profiles: [] };
   if (payload?.action === "set_enabled") return setEnabledHandler
     ? setEnabledHandler(payload)
     : { ok: true, active_profile: "default", active_profile_label: "Default" };
@@ -328,6 +334,11 @@ const callJsonApi = async (endpoint, payload) => {
     title: "Researcher 1",
     profiles: [{ id: "researcher" }, { id: "researcher-1" }],
   };
+  if (endpoint === "/agent_profile_set") return {
+    ok: true,
+    agent_profile: payload.agent_profile,
+    agent_profile_label: "Researcher",
+  };
   return endpoint === "/chat_create" ? { ok: true, ctxid: "fresh-chat" } : { ok: true };
 };
 const fetchApi = async () => ({ ok: true, json: async () => ({}) });
@@ -337,7 +348,11 @@ const showConfirmDialog = async options => { confirmations.push(options); return
 const chatsStore = {
   selected: "old-chat",
   selectedContext: { project: { name: "demo" }, agent_profile: "researcher" },
-  selectChat: async (id) => calls.push({ endpoint: "selectChat", payload: id }),
+  selectChat: async (id) => {
+    calls.push({ endpoint: "selectChat", payload: id });
+    chatsStore.selected = id;
+    chatsStore.selectedContext = { agent_profile: "default", agent_profile_label: "Default" };
+  },
 };
 const modelConfigStore = {
   loadAgentProfiles: async force => calls.push({ endpoint: "loadAgentProfiles", payload: force }),
@@ -382,6 +397,7 @@ globalThis.sessionStorage = { setItem: () => {}, getItem: () => "", removeItem:
 globalThis.localStorage = { setItem: () => {}, getItem: () => "" };
 globalThis.requestAnimationFrame = callback => callback();
 globalThis.confirm = () => true;
+globalThis.justToast = (...args) => toasts.push(args);
 """
     checks = r"""
 if (slugifyProfileName("  Crème Brûlée__Lab  ") !== "creme-brulee-lab") throw new Error("slug mismatch");
@@ -519,9 +535,15 @@ confirmResult = false;
 await store.restoreProfile({ id: "researcher", title: "Researcher", scope_has_overrides: true, deletable: false });
 if (calls.length || confirmations.at(-1)?.title !== "Reset Researcher to default?") throw new Error("restore cancellation failed");
 confirmResult = true;
+profilesHandler = () => ({
+  ok: true,
+  profiles: [{ id: "researcher", title: "Researcher", scope_has_overrides: false }],
+});
 await store.restoreProfile({ id: "researcher", title: "Researcher", scope_has_overrides: true, deletable: false });
 if (!calls.some(item => item.payload?.action === "remove_changes" && item.payload.profile_id === "researcher" && item.payload.destructive === false)) throw new Error("reset to default did not use sparse removal");
 if (!calls.some(item => item.endpoint === "loadAgentProfiles" && item.payload === true) || store.saving) throw new Error("reset to default did not refresh profile state");
+if (store.profiles[0]?.scope_has_overrides || toasts.at(-1)?.[0] !== "Researcher reset to default.") throw new Error("reset to default kept its action or omitted feedback");
+profilesHandler = null;
 let editorReload = null;
 const loadEditor = store.loadEditor;
 const setMode = store.setMode;
@@ -716,6 +738,7 @@ if (calls[1].payload.action !== "deactivate") throw new Error("global test chat
 if (calls[2].payload.agent_profile !== "researcher") throw new Error("profile not selected");
 if (calls[3].payload.action !== "clear") throw new Error("chat preset override not cleared");
 if (store.readyNoteContext !== "fresh-chat") throw new Error("ready note missing");
+if (chatsStore.selectedContext.agent_profile !== "researcher" || chatsStore.selectedContext.agent_profile_label !== "Researcher") throw new Error("fresh chat showed a stale profile");
 calls.length = 0;
 store.projectName = "demo";
 await store.openFreshChat("researcher", false);
diff --git a/tests/test_webui_chat_deletion.py b/tests/test_webui_chat_deletion.py
index 763bff543..129bddfa0 100644
--- a/tests/test_webui_chat_deletion.py
+++ b/tests/test_webui_chat_deletion.py
@@ -69,6 +69,14 @@ const chats = [
   {{ id: "c", created_at: 10 }},
 ];
 
+reset(chats, "b");
+globalThis.__context = "a";
+await model.selectChat("a");
+assert(
+  model.selected === "a" && model.selectedContext?.id === "a",
+  "selection state must catch up when the low-level context already switched",
+);
+
 let resolveDelete;
 globalThis.__sendJsonData = () => new Promise((resolve) => {{ resolveDelete = resolve; }});
 reset(chats, "a");
diff --git a/webui/components/sidebar/AGENTS.md b/webui/components/sidebar/AGENTS.md
index 3f94b7c22..68ae23586 100644
--- a/webui/components/sidebar/AGENTS.md
+++ b/webui/components/sidebar/AGENTS.md
@@ -31,6 +31,7 @@
 - Process-detail preference changes must use the message renderer's async expansion hooks and honor an explicit chat-history render target so staged pages are ready before an atomic swap.
 - The utility-message preference controls both individual utility steps and utility-only process-group chrome so hidden utility runs cannot leave empty headers in the transcript.
 - Chat deletion removes the sidebar row optimistically in the same render batch as fallback selection. Keep successful local deletion tombstones for the page session so out-of-order poll or push snapshots cannot reinsert rows; restore the row and clear its tombstone if the delete request fails.
+- Chat selection must synchronize the sidebar store even when the low-level context has already switched to the requested ID.
 
 ## Work Guidance
 
diff --git a/webui/components/sidebar/chats/chats-store.js b/webui/components/sidebar/chats/chats-store.js
index fd9e458a3..1f608f0e7 100644
--- a/webui/components/sidebar/chats/chats-store.js
+++ b/webui/components/sidebar/chats/chats-store.js
@@ -124,7 +124,10 @@ const model = {
     if (!id || this.deletedContextIds[id]) return;
 
     const currentContext = getContext();
-    if (id === currentContext) return; // already selected
+    if (id === currentContext) {
+      this.setSelected(id);
+      return;
+    }
 
     // Proceed with context selection
     setContext(id);