diff --git a/ui/web/src/i18n/locales/en/cron.json b/ui/web/src/i18n/locales/en/cron.json
index 1951e88c..16d2ffba 100644
--- a/ui/web/src/i18n/locales/en/cron.json
+++ b/ui/web/src/i18n/locales/en/cron.json
@@ -147,7 +147,8 @@
     "envVars": "{{count}} vars",
     "commandJson": "Command JSON",
     "commandJsonHelp": "Edit the command payload as JSON. argv is required and must be a non-empty string array.",
-    "invalidCommandJson": "Invalid command JSON: argv must be a non-empty array."
+    "invalidCommandJson": "Invalid command JSON: argv must be a non-empty array.",
+    "commandArgvHelp": "One argument per line. Use sh / -c / your script for shell syntax."
   },
   "stateless": "Stateless",
   "statelessHelp": "Skip session persistence. Each run starts fresh without loading previous messages. Saves tokens for crons that don't need past context.",
diff --git a/ui/web/src/i18n/locales/ko/cron.json b/ui/web/src/i18n/locales/ko/cron.json
index a9a02d36..10e142a0 100644
--- a/ui/web/src/i18n/locales/ko/cron.json
+++ b/ui/web/src/i18n/locales/ko/cron.json
@@ -147,7 +147,8 @@
     "envVars": "{{count}}개",
     "commandJson": "명령 JSON",
     "commandJsonHelp": "명령 payload를 JSON으로 수정합니다. argv는 필수이며 비어 있지 않은 문자열 배열이어야 합니다.",
-    "invalidCommandJson": "명령 JSON이 올바르지 않습니다: argv는 비어 있지 않은 배열이어야 합니다."
+    "invalidCommandJson": "명령 JSON이 올바르지 않습니다: argv는 비어 있지 않은 배열이어야 합니다.",
+    "commandArgvHelp": "한 줄에 인자 하나씩 입력하세요. shell 문법은 sh / -c / script 형태를 사용하세요."
   },
   "stateless": "상태 없음",
   "statelessHelp": "세션 지속성 건너뜁니다. 각 실행은 이전 메시지 없이 새로 시작됩니다. 이전 컨텍스트가 필요 없는 cron의 토큰을 절약합니다.",
diff --git a/ui/web/src/i18n/locales/vi/cron.json b/ui/web/src/i18n/locales/vi/cron.json
index 189d7273..cdf3d1a2 100644
--- a/ui/web/src/i18n/locales/vi/cron.json
+++ b/ui/web/src/i18n/locales/vi/cron.json
@@ -147,7 +147,8 @@
     "envVars": "{{count}} biến",
     "commandJson": "JSON lệnh",
     "commandJsonHelp": "Chỉnh sửa payload lệnh dưới dạng JSON. argv là bắt buộc và phải là mảng chuỗi không rỗng.",
-    "invalidCommandJson": "JSON lệnh không hợp lệ: argv phải là mảng không rỗng."
+    "invalidCommandJson": "JSON lệnh không hợp lệ: argv phải là mảng không rỗng.",
+    "commandArgvHelp": "Mỗi dòng là một đối số. Dùng sh / -c / script nếu cần cú pháp shell."
   },
   "stateless": "Không trạng thái",
   "statelessHelp": "Bỏ qua lưu session. Mỗi lần chạy bắt đầu mới. Tiết kiệm token cho các cron không cần context cũ.",
diff --git a/ui/web/src/i18n/locales/zh/cron.json b/ui/web/src/i18n/locales/zh/cron.json
index c69d9e84..b5178c61 100644
--- a/ui/web/src/i18n/locales/zh/cron.json
+++ b/ui/web/src/i18n/locales/zh/cron.json
@@ -147,7 +147,8 @@
     "envVars": "{{count}}个变量",
     "commandJson": "命令 JSON",
     "commandJsonHelp": "以 JSON 编辑命令 payload。argv 必填，且必须是非空字符串数组。",
-    "invalidCommandJson": "命令 JSON 无效：argv 必须是非空数组。"
+    "invalidCommandJson": "命令 JSON 无效：argv 必须是非空数组。",
+    "commandArgvHelp": "每行一个参数。如需 shell 语法，请使用 sh / -c / script。"
   },
   "stateless": "无状态",
   "statelessHelp": "跳过会话持久化。每次运行从零开始。为不需要历史上下文的定时任务节省令牌。",
diff --git a/ui/web/src/pages/cron/cron-form-dialog.tsx b/ui/web/src/pages/cron/cron-form-dialog.tsx
index 25f2779d..c38af03c 100644
--- a/ui/web/src/pages/cron/cron-form-dialog.tsx
+++ b/ui/web/src/pages/cron/cron-form-dialog.tsx
@@ -41,7 +41,12 @@ export function CronFormDialog({ open, onOpenChange, onSubmit }: CronFormDialogP
       name: "",
       payloadKind: "agent_turn",
       message: "",
-      commandJson: JSON.stringify({ argv: ["sh", "-c", "echo hello"] }, null, 2),
+      commandArgvText: "sh\n-c\necho hello",
+      commandCwd: "",
+      commandTimeoutSeconds: "",
+      commandNoOutputTimeoutSeconds: "",
+      commandOutputMaxBytes: "",
+      commandInput: "",
       agentId: "",
       scheduleKind: "every",
       everyValue: "60",
@@ -63,7 +68,14 @@ export function CronFormDialog({ open, onOpenChange, onSubmit }: CronFormDialogP
     }
 
     const command = data.payloadKind === "command"
-      ? JSON.parse(data.commandJson || "{}") as CronCommandSpec
+      ? {
+        argv: (data.commandArgvText || "").split("\n").map((v) => v.trim()).filter(Boolean),
+        cwd: data.commandCwd?.trim() || undefined,
+        timeoutSeconds: data.commandTimeoutSeconds ? Number(data.commandTimeoutSeconds) : undefined,
+        noOutputTimeoutSeconds: data.commandNoOutputTimeoutSeconds ? Number(data.commandNoOutputTimeoutSeconds) : undefined,
+        outputMaxBytes: data.commandOutputMaxBytes ? Number(data.commandOutputMaxBytes) : undefined,
+        input: data.commandInput || undefined,
+      } satisfies CronCommandSpec
       : undefined;
 
     await onSubmit({
@@ -200,18 +212,41 @@ export function CronFormDialog({ open, onOpenChange, onSubmit }: CronFormDialogP
               )}
             </div>
           ) : (
-            <div className="space-y-2">
-              <Label>{t("detail.commandJson")}</Label>
-              <Textarea
-                {...register("commandJson")}
-                rows={8}
-                className="font-mono text-base md:text-sm"
-              />
-              {errors.commandJson ? (
-                <p className="text-xs text-destructive">{errors.commandJson.message}</p>
-              ) : (
-                <p className="text-xs text-muted-foreground">{t("detail.commandJsonHelp")}</p>
-              )}
+            <div className="space-y-3 rounded-md border p-3">
+              <div className="space-y-2">
+                <Label>{t("detail.commandArgv")}</Label>
+                <Textarea {...register("commandArgvText")} rows={4} className="font-mono text-base md:text-sm" />
+                {errors.commandArgvText ? (
+                  <p className="text-xs text-destructive">{errors.commandArgvText.message}</p>
+                ) : (
+                  <p className="text-xs text-muted-foreground">{t("detail.commandArgvHelp")}</p>
+                )}
+              </div>
+              <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
+                <div className="space-y-2">
+                  <Label>{t("detail.commandCwd")}</Label>
+                  <Input {...register("commandCwd")} placeholder={t("detail.defaultWorkingDirectory")} />
+                </div>
+                <div className="space-y-2">
+                  <Label>{t("detail.commandTimeout")}</Label>
+                  <Input type="number" min={0} {...register("commandTimeoutSeconds")} placeholder={t("detail.defaultValue")} />
+                  {errors.commandTimeoutSeconds && <p className="text-xs text-destructive">{errors.commandTimeoutSeconds.message}</p>}
+                </div>
+                <div className="space-y-2">
+                  <Label>{t("detail.commandNoOutputTimeout")}</Label>
+                  <Input type="number" min={0} {...register("commandNoOutputTimeoutSeconds")} placeholder={t("detail.none")} />
+                  {errors.commandNoOutputTimeoutSeconds && <p className="text-xs text-destructive">{errors.commandNoOutputTimeoutSeconds.message}</p>}
+                </div>
+                <div className="space-y-2">
+                  <Label>{t("detail.commandOutputLimit")}</Label>
+                  <Input type="number" min={0} {...register("commandOutputMaxBytes")} placeholder={t("detail.defaultValue")} />
+                  {errors.commandOutputMaxBytes && <p className="text-xs text-destructive">{errors.commandOutputMaxBytes.message}</p>}
+                </div>
+              </div>
+              <div className="space-y-2">
+                <Label>{t("detail.commandInput")}</Label>
+                <Textarea {...register("commandInput")} rows={3} className="font-mono text-base md:text-sm" placeholder={t("detail.none")} />
+              </div>
             </div>
           )}
         </div>
@@ -221,7 +256,7 @@ export function CronFormDialog({ open, onOpenChange, onSubmit }: CronFormDialogP
           </Button>
           <Button
             onClick={handleSubmit(onFormSubmit)}
-            disabled={isSubmitting || !!errors.name || (payloadKind === "agent_turn" ? !!errors.message : !!errors.commandJson)}
+            disabled={isSubmitting || !!errors.name || (payloadKind === "agent_turn" ? !!errors.message : !!errors.commandArgvText)}
           >
             {isSubmitting ? t("create.creating") : t("create.create")}
           </Button>
diff --git a/ui/web/src/schemas/cron.schema.ts b/ui/web/src/schemas/cron.schema.ts
index 04c1b0a4..d1253bd2 100644
--- a/ui/web/src/schemas/cron.schema.ts
+++ b/ui/web/src/schemas/cron.schema.ts
@@ -8,7 +8,12 @@ export const cronCreateSchema = z.object({
     .refine(isValidSlug, "Only lowercase letters, numbers, and hyphens"),
   payloadKind: z.enum(["agent_turn", "command"]),
   message: z.string().optional(),
-  commandJson: z.string().optional(),
+  commandArgvText: z.string().optional(),
+  commandCwd: z.string().optional(),
+  commandTimeoutSeconds: z.string().optional(),
+  commandNoOutputTimeoutSeconds: z.string().optional(),
+  commandOutputMaxBytes: z.string().optional(),
+  commandInput: z.string().optional(),
   agentId: z.string().optional(),
   scheduleKind: z.enum(["every", "cron", "at"]),
   everyValue: z.string().min(1, "Required"),
@@ -19,12 +24,18 @@ export const cronCreateSchema = z.object({
   }
   if (data.payloadKind === "command") {
     try {
-      const parsed = JSON.parse(data.commandJson || "");
-      if (!Array.isArray(parsed?.argv) || parsed.argv.length === 0 || !parsed.argv[0]) {
-        ctx.addIssue({ code: z.ZodIssueCode.custom, path: ["commandJson"], message: "argv must be a non-empty array" });
+      const argv = (data.commandArgvText || "").split("\n").map((v) => v.trim()).filter(Boolean);
+      if (argv.length === 0 || !argv[0]) {
+        ctx.addIssue({ code: z.ZodIssueCode.custom, path: ["commandArgvText"], message: "argv must be a non-empty list" });
+      }
+      for (const field of ["commandTimeoutSeconds", "commandNoOutputTimeoutSeconds", "commandOutputMaxBytes"] as const) {
+        const raw = data[field];
+        if (raw && (!/^\d+$/.test(raw) || Number(raw) < 0)) {
+          ctx.addIssue({ code: z.ZodIssueCode.custom, path: [field], message: "Must be a non-negative integer" });
+        }
       }
     } catch {
-      ctx.addIssue({ code: z.ZodIssueCode.custom, path: ["commandJson"], message: "Invalid JSON" });
+      ctx.addIssue({ code: z.ZodIssueCode.custom, path: ["commandArgvText"], message: "Invalid command" });
     }
   }
 });