diff --git a/frontend/src/components/console/task/chat-panel.tsx b/frontend/src/components/console/task/chat-panel.tsx
index 015fa472..56ac6cd9 100644
--- a/frontend/src/components/console/task/chat-panel.tsx
+++ b/frontend/src/components/console/task/chat-panel.tsx
@@ -7,6 +7,77 @@ import { ChevronsDownUp, ChevronsUpDown } from "lucide-react"
 import { Label } from "@/components/ui/label"
 import { IconCircle, IconCircleCheck, IconLoader, IconPlayerStopFilled, IconSubtask } from "@tabler/icons-react"
 import type { AvailableCommands, PlanEntry, RepoFileChange, TaskPlan, TaskStreamStatus, TaskWebSocketManager } from "./ws-manager"
+
+export interface PlanStepsBlockProps {
+  plan: TaskPlan
+  streamStatus: TaskStreamStatus
+}
+
+export function PlanStepsBlock({ plan, streamStatus }: PlanStepsBlockProps) {
+  const [planOpened, setPlanOpened] = React.useState(false)
+
+  React.useEffect(() => {
+    if (!plan) return
+    setPlanOpened(plan.entries.some((entry: PlanEntry) => entry.status !== "completed"))
+  }, [plan])
+
+  if (!plan || plan.entries.length === 0) return null
+
+  const renderPlan = () => {
+    if (planOpened) {
+      return plan.entries.map((entry: PlanEntry, index: number) => (
+        <div key={index} className="flex items-center gap-2">
+          {entry.status === "in_progress" && streamStatus === "executing" ? (
+            <IconLoader className="min-w-3 size-3 animate-spin" />
+          ) : entry.status === "completed" ? (
+            <IconCircleCheck className="min-w-3 size-3 text-primary" />
+          ) : (
+            <IconCircle className="min-w-3 size-3 text-muted-foreground" />
+          )}
+          <div
+            className={cn(
+              "line-clamp-1 text-xs",
+              entry.status === "completed" ? "text-muted-foreground" : "",
+              entry.status === "in_progress" && streamStatus === "executing" ? "text-primary" : ""
+            )}
+          >
+            {entry.content}
+          </div>
+        </div>
+      ))
+    } else {
+      const firstInProgress = plan.entries.find((entry: PlanEntry) => entry.status === "in_progress")
+      if (!firstInProgress || streamStatus !== "executing") return null
+      return (
+        <div className="flex items-center gap-2">
+          {firstInProgress.status === "in_progress" ? (
+            <IconLoader className="min-w-3 size-3 animate-spin" />
+          ) : firstInProgress.status === "completed" ? (
+            <IconCircleCheck className="min-w-3 size-3 text-primary" />
+          ) : (
+            <IconCircle className="min-w-3 size-3 text-muted-foreground" />
+          )}
+          <div className="line-clamp-1 text-xs text-primary">{firstInProgress.content}</div>
+        </div>
+      )
+    }
+  }
+
+  return (
+    <div className="flex w-full flex-col gap-2 border rounded-md p-2 shrink-0">
+      <div className="flex items-center justify-between">
+        <Label>
+          <IconSubtask className="size-4 text-primary" />
+          执行步骤 ({plan.entries.filter((entry: PlanEntry) => entry.status === "completed").length}/{plan.entries.length})
+        </Label>
+        <Button variant={planOpened ? "secondary" : "ghost"} size="icon-sm" className="size-5" onClick={() => setPlanOpened(!planOpened)}>
+          {planOpened ? <ChevronsDownUp className="size-4" /> : <ChevronsUpDown className="size-4" />}
+        </Button>
+      </div>
+      <div className="flex flex-col gap-2 max-h-48 overflow-y-auto">{renderPlan()}</div>
+    </div>
+  )
+}
 import { TaskChatInputBox } from "./chat-inputbox"
 import { cn } from "@/lib/utils"
 import { FileChangesDialog } from "./file-changes-dialog"
@@ -20,6 +91,8 @@ interface TaskChatPanelProps {
   streamStatus: TaskStreamStatus
   disabled: boolean
   plan: TaskPlan | null
+  /** 当为 'sticky' 时，执行步骤由父组件渲染并固定在顶部，本组件不渲染 */
+  planPosition?: "inline" | "sticky"
   availableCommands: AvailableCommands | null
   sending: boolean
   queueSize: number
@@ -32,8 +105,7 @@ interface TaskChatPanelProps {
   taskManager: TaskWebSocketManager | null
 }
 
-export const TaskChatPanel = ({ scrollContainerRef: externalScrollRef, inputPortalTargetRef, messages, cli, streamStatus, disabled, plan, availableCommands, sending, sendUserInput, sendCancelCommand, sendResetSession, sendReloadSession, queueSize, fileChanges, fileChangesMap, taskManager }: TaskChatPanelProps) => {
-  const [planOpened, setPlanOpened] = React.useState(false)
+export const TaskChatPanel = ({ scrollContainerRef: externalScrollRef, inputPortalTargetRef, messages, cli, streamStatus, disabled, plan, planPosition = "inline", availableCommands, sending, sendUserInput, sendCancelCommand, sendResetSession, sendReloadSession, queueSize, fileChanges, fileChangesMap, taskManager }: TaskChatPanelProps) => {
   const [timeCost, setTimeCost] = React.useState(0)
   const internalScrollRef = React.useRef<HTMLDivElement>(null)
   const scrollContainerRef = externalScrollRef ?? internalScrollRef
@@ -42,18 +114,9 @@ export const TaskChatPanel = ({ scrollContainerRef: externalScrollRef, inputPort
 
 
   React.useEffect(() => {
-    setShowSubmitButton(streamStatus === 'waiting')
+    setShowSubmitButton(streamStatus === "waiting")
   }, [streamStatus])
 
-  React.useEffect(() => {
-    if (!plan) {
-      return
-    }
-    
-    setPlanOpened(plan.entries.some((entry: PlanEntry) => entry.status !== 'completed'))
-
-  }, [plan])
-
   React.useEffect(() => {
     if (streamStatus === 'executing') {
       setTimeCost(0)
@@ -139,65 +202,11 @@ export const TaskChatPanel = ({ scrollContainerRef: externalScrollRef, inputPort
     }
   }
 
-  const renderPlan = () => {
-    if (!plan || plan.entries.length === 0) {
-      return null
-    }
-    if (planOpened) {
-      return plan.entries.map((entry: PlanEntry, index: number) => (
-        <div key={index} className="flex items-center gap-2">
-          {entry.status === 'in_progress' && streamStatus === 'executing' ? (
-            <IconLoader className="min-w-3 size-3 animate-spin" />
-          ) : (
-            entry.status === 'completed' ? (
-              <IconCircleCheck className="min-w-3 size-3 text-primary" />
-            ) : (
-              <IconCircle className="min-w-3 size-3 text-muted-foreground" />
-            )
-          )}
-          <div className={cn("line-clamp-1 text-xs", entry.status === 'completed' ? 'text-muted-foreground' : '', (entry.status === 'in_progress' && streamStatus === 'executing') ? 'text-primary' : '')}>
-            {entry.content}
-          </div>
-        </div>
-      ))
-    } else {
-      const firstInProgress = plan.entries.find((entry: PlanEntry) => entry.status === 'in_progress')
-      if (!firstInProgress || streamStatus !== 'executing') {
-        return null
-      }
-      return  <div className="flex items-center gap-2">
-        {firstInProgress.status === 'in_progress' ? (
-          <IconLoader className="min-w-3 size-3 animate-spin" />
-        ) : (
-          firstInProgress.status === 'completed' ? (
-            <IconCircleCheck className="min-w-3 size-3 text-primary" />
-          ) : (
-            <IconCircle className="min-w-3 size-3 text-muted-foreground" />
-          )
-        )}
-        <div className="line-clamp-1 text-xs text-primary">
-          {firstInProgress.content}
-        </div>
-      </div>
-    }
-  }
-
   return (
     <div className={cn("flex flex-col gap-2 w-full", externalScrollRef ? "min-h-full" : "h-full")}>
-      {plan && plan.entries.length > 0 && <div className="flex w-full flex-col gap-2 border rounded-md p-2">
-        <div className="flex items-center justify-between">
-          <Label>
-            <IconSubtask className="size-4 text-primary" />
-            执行步骤 ({plan.entries.filter((entry: PlanEntry) => entry.status === 'completed').length}/{plan.entries.length})
-          </Label>
-          <Button variant={planOpened ? "secondary" : "ghost"} size="icon-sm" className="size-5" onClick={() => setPlanOpened(!planOpened)}>
-            {planOpened ? <ChevronsDownUp className="size-4" /> : <ChevronsUpDown className="size-4" />}
-          </Button>
-        </div>
-        <div className="flex flex-col gap-2 max-h-48 overflow-y-auto">
-          {renderPlan()}
-        </div>
-      </div>}
+      {planPosition === "inline" && plan && plan.entries.length > 0 && (
+        <PlanStepsBlock plan={plan} streamStatus={streamStatus} />
+      )}
 
       <div
         ref={!externalScrollRef ? internalScrollRef : undefined}
diff --git a/frontend/src/components/console/task/task-input.tsx b/frontend/src/components/console/task/task-input.tsx
index 7712288b..02a3982d 100644
--- a/frontend/src/components/console/task/task-input.tsx
+++ b/frontend/src/components/console/task/task-input.tsx
@@ -18,7 +18,7 @@ import { Spinner } from "@/components/ui/spinner";
 import { cn } from "@/lib/utils";
 import { getBrandFromModelName, getGitPlatformIcon, getHostBadges, getImageShortName, getInterfaceTypeBadge, getModelHealthBadge, getOSFromImageName, getOwnerTypeBadge, getRepoIcon, getRepoNameFromUrl, getSkillTagIcon, selectHost, selectImage, selectModel } from "@/utils/common";
 import { apiRequest } from "@/utils/requestUtils";
-import { IconBug, IconLink, IconPuzzle, IconSend, IconSourceCode, IconSquareRoundedLetterOFilled, IconTerminal2, IconUpload, IconUser, IconVocabulary, IconXboxX } from "@tabler/icons-react";
+import { IconBug, IconLink, IconPuzzle, IconSend, IconSourceCode, IconTerminal2, IconUpload, IconUser, IconVocabulary, IconXboxX } from "@tabler/icons-react";
 import { useEffect, useMemo, useRef, useState } from "react";
 import { useNavigate } from "react-router-dom";
 import { useSettingsDialog } from "@/pages/console/user/page";
@@ -102,8 +102,7 @@ export function TaskInput({ repos, onTaskCreated }: TaskInputProps) {
   const [selectedSkill, setSelectedSkill] = useState<string[]>(defaultSkills);
   const [skillList, setSkillList] = useState<DomainSkill[]>([]);
 
-  // 运行参数状态
-  const [selectedTool, setSelectedTool] = useState<string>("");
+  // 运行参数状态（工具固定为 opencode）
   const [selectedModelId, setSelectedModelId] = useState<string>("");
   const [selectedHostId, setSelectedHostId] = useState<string>("");
   const [selectedImageId, setSelectedImageId] = useState<string>("");
@@ -222,7 +221,6 @@ export function TaskInput({ repos, onTaskCreated }: TaskInputProps) {
 
   const setDefaultConfig = () => {
     setSelectedModelId(selectModel(modelsWithEconomy, true))
-    setSelectedTool(ConstsCliName.CliNameOpencode)
     setSelectedHostId(selectHost(hosts, true))
 
     if (user.role === ConstsUserRole.UserRoleSubAccount) {
@@ -247,11 +245,7 @@ export function TaskInput({ repos, onTaskCreated }: TaskInputProps) {
       return true
     }
 
-    if (selectedTool === ConstsCliName.CliNameCodex) {
-      return model.interface_type === ConstsInterfaceType.InterfaceTypeOpenAIResponse
-    } else if (selectedTool === ConstsCliName.CliNameClaude) {
-      return model.interface_type === ConstsInterfaceType.InterfaceTypeAnthropic
-    }
+    // 固定使用 opencode，支持所有模型
     return true;
   };
 
@@ -274,7 +268,7 @@ export function TaskInput({ repos, onTaskCreated }: TaskInputProps) {
   const executeTask = async () => {
     setCreatingTask(true);
     await apiRequest('v1UsersTasksCreate', {
-      cli_name: selectedTool,
+      cli_name: ConstsCliName.CliNameOpencode,
       content: taskContent,
       git_identity_id: selectedIdentityId || undefined,
       host_id: selectedHostId,
@@ -752,30 +746,6 @@ export function TaskInput({ repos, onTaskCreated }: TaskInputProps) {
           <DialogHeader>
             <DialogTitle>任务参数</DialogTitle>
           </DialogHeader>
-          <Field>
-            <FieldLabel>开发工具</FieldLabel>
-            <FieldContent>
-              <Select value={selectedTool} onValueChange={setSelectedTool}>
-                <SelectTrigger className="w-full">
-                  <SelectValue placeholder="选择开发工具" />
-                </SelectTrigger>
-                <SelectContent>
-                  <SelectItem value={ConstsCliName.CliNameClaude}>
-                    <Icon name="claude" className="size-4" />
-                    Claude Code
-                  </SelectItem>
-                  <SelectItem value={ConstsCliName.CliNameCodex} disabled>
-                    <Icon name="openai" className="size-4" />
-                    OpenAI Codex
-                  </SelectItem>
-                  <SelectItem value={ConstsCliName.CliNameOpencode}>
-                    <IconSquareRoundedLetterOFilled className="size-4 text-primary" />
-                    OpenCode
-                  </SelectItem>
-                </SelectContent>
-              </Select>
-            </FieldContent>
-          </Field>
           <Field>
             <FieldLabel>大模型</FieldLabel>
             <FieldContent>
diff --git a/frontend/src/pages/console/user/task/task-detail.tsx b/frontend/src/pages/console/user/task/task-detail.tsx
index 539a5d14..abd61117 100644
--- a/frontend/src/pages/console/user/task/task-detail.tsx
+++ b/frontend/src/pages/console/user/task/task-detail.tsx
@@ -1,6 +1,6 @@
 import { ConstsTaskStatus, type DomainProjectTask } from "@/api/Api"
 import { useBreadcrumbTask } from "@/components/console/breadcrumb-task-context"
-import { TaskChatPanel } from "@/components/console/task/chat-panel"
+import { PlanStepsBlock, TaskChatPanel } from "@/components/console/task/chat-panel"
 import { TaskFileExplorer } from "@/components/console/task/task-file-explorer"
 import { TaskTerminalPanel } from "@/components/console/task/task-terminal-panel"
 import type { MessageType } from "@/components/console/task/message"
@@ -228,6 +228,11 @@ export default function TaskDetailPage() {
 
   const chatSection = (
     <div className={cn("flex flex-col h-full min-h-0 gap-2", hasPanel ? "max-w-full" : "")}>
+      {plan && plan.entries.length > 0 && (
+        <div className={cn("shrink-0", hasPanel ? "w-full" : "mx-auto max-w-[800px] w-full")}>
+          <PlanStepsBlock plan={plan} streamStatus={streamStatus} />
+        </div>
+      )}
       <div ref={chatScrollRef} className="flex-1 min-h-0 overflow-y-auto min-w-0">
         <div className={cn("min-h-full", hasPanel ? "w-full" : "mx-auto max-w-[800px]")}>
           <TaskChatPanel
@@ -240,6 +245,7 @@ export default function TaskDetailPage() {
             disabled={!vmOnline}
             sending={sending}
             plan={plan}
+            planPosition="sticky"
             sendUserInput={sendUserInput}
             sendCancelCommand={sendCancelCommand}
             sendResetSession={sendResetSession}
diff --git a/frontend/src/pages/console/user/task/task-dev.tsx b/frontend/src/pages/console/user/task/task-dev.tsx
index 0748130d..1b743f4e 100644
--- a/frontend/src/pages/console/user/task/task-dev.tsx
+++ b/frontend/src/pages/console/user/task/task-dev.tsx
@@ -1,5 +1,5 @@
 import { TypesVirtualMachineStatus, type DomainProjectTask } from "@/api/Api"
-import { TaskChatPanel } from "@/components/console/task/chat-panel"
+import { PlanStepsBlock, TaskChatPanel } from "@/components/console/task/chat-panel"
 import { TaskFileTree } from "@/components/console/task/file-tree"
 import type { MessageType } from "@/components/console/task/message"
 import { TaskDetailPanel, type TaskDetailPanelRef } from "@/components/console/task/task-detail-panel"
@@ -431,27 +431,35 @@ export default function TaskDevelopPage() {
         {(showTerminalPanel || showFilesPanel) && <ResizableHandle className="invisible hidden sm:block" />}
         <ResizablePanel defaultSize={40} minSize={35} style={{overflow: 'visible'}}>
           <div className="w-full h-full flex flex-col min-w-0">
+            {plan && plan.entries.length > 0 && (
+              <div className="shrink-0 flex justify-center">
+                <div className="max-w-[800px] w-full">
+                  <PlanStepsBlock plan={plan} streamStatus={streamStatus} />
+                </div>
+              </div>
+            )}
             <div ref={chatScrollRef} className="flex-1 min-h-0 overflow-y-auto flex justify-center">
               <div className="max-w-[800px] w-full min-h-full">
-                <TaskChatPanel 
-            scrollContainerRef={chatScrollRef}
-            inputPortalTargetRef={chatInputRef}
-            messages={messages} 
-            cli={task?.cli_name}
-            availableCommands={availableCommands}
-            streamStatus={streamStatus}
-            disabled={task?.virtualmachine?.status !== TypesVirtualMachineStatus.VirtualMachineStatusOnline} 
-            sending={sending}
-            plan={plan}
-            sendUserInput={sendUserInput}
-            sendCancelCommand={sendCancelCommand}
-            sendResetSession={sendResetSession}
-            sendReloadSession={sendReloadSession}
-            queueSize={queueSize}
-            fileChanges={changedPaths}
-            fileChangesMap={fileChangesMap}
-            taskManager={taskManager.current}
-            />
+                <TaskChatPanel
+                  scrollContainerRef={chatScrollRef}
+                  inputPortalTargetRef={chatInputRef}
+                  messages={messages}
+                  cli={task?.cli_name}
+                  availableCommands={availableCommands}
+                  streamStatus={streamStatus}
+                  disabled={task?.virtualmachine?.status !== TypesVirtualMachineStatus.VirtualMachineStatusOnline}
+                  sending={sending}
+                  plan={plan}
+                  planPosition="sticky"
+                  sendUserInput={sendUserInput}
+                  sendCancelCommand={sendCancelCommand}
+                  sendResetSession={sendResetSession}
+                  sendReloadSession={sendReloadSession}
+                  queueSize={queueSize}
+                  fileChanges={changedPaths}
+                  fileChangesMap={fileChangesMap}
+                  taskManager={taskManager.current}
+                />
               </div>
             </div>
             <div className="shrink-0 w-full flex justify-center">