diff --git a/crates/op-smoke/src/main.rs b/crates/op-smoke/src/main.rs
index 503816760..9d6e46209 100644
--- a/crates/op-smoke/src/main.rs
+++ b/crates/op-smoke/src/main.rs
@@ -453,8 +453,19 @@ async fn main() -> std::process::ExitCode {
         }
     };
 
+    // `OPENPENCIL_SMOKE_STARTER=1` seeds the fresh-canvas starter frame so a
+    // smoke run exercises the TS `replaceEmptyFrame` reuse path (the desktop
+    // GUI always carries this single empty starter); default stays the empty
+    // `new()` doc so existing traces are unaffected.
+    let seed_starter = std::env::var("OPENPENCIL_SMOKE_STARTER")
+        .map(|v| v == "1" || v.eq_ignore_ascii_case("true"))
+        .unwrap_or(false);
     let mut sink = InlineDocSink {
-        state: EditorState::new(),
+        state: if seed_starter {
+            EditorState::starter()
+        } else {
+            EditorState::new()
+        },
     };
     let request = DesignRequest {
         prompt,
@@ -462,7 +473,10 @@ async fn main() -> std::process::ExitCode {
         provider: None,
         design_md: sink.state.doc.design_md.clone(),
         append_context: None,
-        concurrency: 1,
+        concurrency: std::env::var("OPENPENCIL_SMOKE_CONCURRENCY")
+            .ok()
+            .and_then(|s| s.parse().ok())
+            .unwrap_or(1),
         validation_enabled: false,
         visual_ref_enabled: false,
     };
diff --git a/scripts/ab-v9/run_matrix.py b/scripts/ab-v9/run_matrix.py
index 06806c842..3770835dd 100644
--- a/scripts/ab-v9/run_matrix.py
+++ b/scripts/ab-v9/run_matrix.py
@@ -80,6 +80,14 @@ PROVIDERS = {
         "model": "glm-5.1",
         "key_env": "ARK_KEY",
     },
+    # 方舟 CP 的 GLM-5.2(2026-06-17 用户报方舟已上线)。走方舟 coding v3 +
+    # ARK_KEY,与下面智谱官方 CP 的 glm-5.2(GLM_BASE/GLM_KEY)区分——这条
+    # 走方舟侧的 glm-5.2 别名。
+    "ark-glm-5.2": {
+        "base": ARK_BASE,
+        "model": "glm-5.2",
+        "key_env": "ARK_KEY",
+    },
     # 智谱官方 Coding Plan,GLM-5.2(用户 2026-06-15 提供的 id.secret key)。
     "glm-5.2": {
         "base": GLM_BASE,