diff --git a/packages/shared/src/contracts/generated/ProfileMembershipPlanResponse.ts b/packages/shared/src/contracts/generated/ProfileMembershipPlanResponse.ts
index adca547ab..c2ba7fd73 100644
--- a/packages/shared/src/contracts/generated/ProfileMembershipPlanResponse.ts
+++ b/packages/shared/src/contracts/generated/ProfileMembershipPlanResponse.ts
@@ -12,7 +12,7 @@ plan: ProfileMembershipPlanToken, title: string, rank: number, monthPriceCents:
  */
 modelAccess: ProfileMembershipModelAccessToken, 
 /**
- * 并发上限；`128` 表示不设上限。
+ * 并发上限；达到后端下发的 `unlimitedConcurrencyThreshold` 即表示不设上限，前端不硬编码哨兵值。
  */
 concurrentJobLimit: number, 
 /**
diff --git a/server-rs/crates/shared-contracts/src/runtime.rs b/server-rs/crates/shared-contracts/src/runtime.rs
index d04269aa8..f59f7018c 100644
--- a/server-rs/crates/shared-contracts/src/runtime.rs
+++ b/server-rs/crates/shared-contracts/src/runtime.rs
@@ -535,7 +535,7 @@ pub struct ProfileMembershipPlanResponse {
     /// 模型权限 token：`basic` / `full`；未知取值按 `full` 兜底。
     #[serde(deserialize_with = "deserialize_forward_compat_model_access")]
     pub model_access: ProfileMembershipModelAccessToken,
-    /// 并发上限；`128` 表示不设上限。
+    /// 并发上限；达到后端下发的 `unlimitedConcurrencyThreshold` 即表示不设上限，前端不硬编码哨兵值。
     pub concurrent_job_limit: u32,
     /// 是否为运营推荐档位；由后端目录决定，前端不再硬编码档位 token。
     pub recommended: bool,