diff --git a/internal/multiagent/eino_adk_run_loop.go b/internal/multiagent/eino_adk_run_loop.go
index 4ec0e9c8..cadd2c30 100644
--- a/internal/multiagent/eino_adk_run_loop.go
+++ b/internal/multiagent/eino_adk_run_loop.go
@@ -15,8 +15,8 @@ import (
 
 	"cyberstrike-ai/internal/agent"
 	"cyberstrike-ai/internal/config"
-	"cyberstrike-ai/internal/einoobserve"
 	"cyberstrike-ai/internal/einomcp"
+	"cyberstrike-ai/internal/einoobserve"
 	"cyberstrike-ai/internal/openai"
 
 	"github.com/cloudwego/eino/adk"
@@ -267,7 +267,16 @@ func runEinoADKAgentLoop(ctx context.Context, args *einoADKRunLoopArgs, baseMsgs
 			isErr := !success || invokeErr != nil
 			body := content
 			if invokeErr != nil {
-				body = invokeErr.Error()
+				// 保留已流式累计的 stdout（如 execute 超时前的一半输出），避免 tool_result 只剩错误串、模型与 UI 丢失上下文
+				tail := friendlyEinoExecuteInvokeTail(invokeErr)
+				// execute 流式包装可能已把超时句写入 content（供 ADK tool 与流式 delta）；勿重复拼接
+				if tail != "" && strings.Contains(content, tail) {
+					body = content
+				} else if strings.TrimSpace(content) != "" {
+					body = strings.TrimRight(content, "\n") + "\n\n" + tail
+				} else {
+					body = tail
+				}
 				isErr = true
 			}
 			recordPendingExecuteStdoutDup(toolName, body, isErr)
@@ -948,6 +957,17 @@ func einoPartialRunLastOutputHint() string {
 		"[Run ended abnormally; continue from the trace above without repeating completed steps.]"
 }
 
+// friendlyEinoExecuteInvokeTail 将 Eino execute 等非 MCP 路径的结尾错误转成简短提示；其它情况保留原 error 文本。
+func friendlyEinoExecuteInvokeTail(invokeErr error) string {
+	if invokeErr == nil {
+		return ""
+	}
+	if errors.Is(invokeErr, context.DeadlineExceeded) {
+		return einoExecuteTimeoutUserHint()
+	}
+	return "[执行未正常结束] " + invokeErr.Error()
+}
+
 func buildEinoRunResultFromAccumulated(
 	orchMode string,
 	runAccumulatedMsgs []adk.Message,
diff --git a/internal/multiagent/eino_execute_streaming_wrap.go b/internal/multiagent/eino_execute_streaming_wrap.go
index c20f7609..387245a5 100644
--- a/internal/multiagent/eino_execute_streaming_wrap.go
+++ b/internal/multiagent/eino_execute_streaming_wrap.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"strings"
+	"time"
 
 	"cyberstrike-ai/internal/einomcp"
 	"cyberstrike-ai/internal/security"
@@ -15,6 +16,24 @@ import (
 	"github.com/cloudwego/eino/schema"
 )
 
+// prependPythonUnbufferedEnv 为 /bin/sh -c 注入 PYTHONUNBUFFERED=1。
+// eino-ext local 对流式 stdout 使用 bufio 按「行」推送；python3 写管道时默认块缓冲，print 长期留在用户态缓冲，
+// 管道里收不到换行，表现为长时间无输出直至超时或退出。若命令里已出现 PYTHONUNBUFFERED 则不再覆盖。
+func prependPythonUnbufferedEnv(shellCommand string) string {
+	if strings.TrimSpace(shellCommand) == "" {
+		return shellCommand
+	}
+	if strings.Contains(strings.ToUpper(shellCommand), "PYTHONUNBUFFERED") {
+		return shellCommand
+	}
+	return "export PYTHONUNBUFFERED=1\n" + shellCommand
+}
+
+// einoExecuteTimeoutUserHint 与写入 ADK 工具消息（模型可见）及 SSE tool_result 尾标一致。
+func einoExecuteTimeoutUserHint() string {
+	return "已超时终止 · Timed out"
+}
+
 // einoStreamingShellWrap 包装 Eino filesystem 使用的 StreamingShell（cloudwego eino-ext local.Local）。
 // 官方 execute 工具默认走 ExecuteStreaming 且不设 RunInBackendGround；末尾带 & 时子进程仍与管道相连，
 // streamStdout 按行读取会在无换行输出时长时间阻塞（与 MCP 工具 exec 的独立实现不同）。
@@ -29,6 +48,10 @@ type einoStreamingShellWrap struct {
 	inner         filesystem.StreamingShell
 	invokeNotify  *einomcp.ToolInvokeNotifyHolder
 	einoAgentName string
+	// outputChunk 可选；非 nil 时在收到内层 ExecuteResponse 片段时推送，与 MCP 工具的 tool_result_delta 一致（需有效 toolCallId）。
+	outputChunk func(toolName, toolCallID, chunk string)
+	// toolTimeoutMinutes 与 agent.tool_timeout_minutes 对齐；>0 时对单次 execute 套用 context 超时（与 MCP 工具经 executeToolViaMCP 行为一致）。0 表示仅依赖上层 ctx（如整任务 10h 上限）。
+	toolTimeoutMinutes int
 	// recordMonitor 在 execute 流结束后写入 tool_executions 并 recorder(executionId)，使「渗透测试详情」与常规 MCP 一致。
 	recordMonitor func(command, stdout string, success bool, invokeErr error)
 }
@@ -41,17 +64,27 @@ func (w *einoStreamingShellWrap) ExecuteStreaming(ctx context.Context, input *fi
 		return w.inner.ExecuteStreaming(ctx, nil)
 	}
 	req := *input
-	cmd := strings.TrimSpace(req.Command)
+	userCmd := strings.TrimSpace(req.Command)
 	if security.IsBackgroundShellCommand(req.Command) && !req.RunInBackendGround {
 		req.RunInBackendGround = true
 	}
+	req.Command = prependPythonUnbufferedEnv(req.Command)
 	tid := strings.TrimSpace(compose.GetToolCallID(ctx))
 	agentTag := strings.TrimSpace(w.einoAgentName)
 
-	sr, err := w.inner.ExecuteStreaming(ctx, &req)
+	execCtx := ctx
+	var execCancel context.CancelFunc
+	if w.toolTimeoutMinutes > 0 {
+		execCtx, execCancel = context.WithTimeout(ctx, time.Duration(w.toolTimeoutMinutes)*time.Minute)
+	}
+
+	sr, err := w.inner.ExecuteStreaming(execCtx, &req)
 	if err != nil {
+		if execCancel != nil {
+			execCancel()
+		}
 		if w.recordMonitor != nil {
-			w.recordMonitor(cmd, "", false, err)
+			w.recordMonitor(userCmd, "", false, err)
 		}
 		if w.invokeNotify != nil && tid != "" {
 			w.invokeNotify.Fire(tid, "execute", agentTag, false, "", err)
@@ -59,13 +92,19 @@ func (w *einoStreamingShellWrap) ExecuteStreaming(ctx context.Context, input *fi
 		return nil, err
 	}
 	if sr == nil || w.invokeNotify == nil || tid == "" {
+		if execCancel != nil {
+			execCancel()
+		}
 		return sr, nil
 	}
 
 	outR, outW := schema.Pipe[*filesystem.ExecuteResponse](32)
 
-	go func(inner *schema.StreamReader[*filesystem.ExecuteResponse], command string) {
+	go func(inner *schema.StreamReader[*filesystem.ExecuteResponse], command string, cancel context.CancelFunc, tctx context.Context) {
 		defer inner.Close()
+		if cancel != nil {
+			defer cancel()
+		}
 
 		var sb strings.Builder
 		const maxCapture = 16 * 1024
@@ -90,12 +129,18 @@ func (w *einoStreamingShellWrap) ExecuteStreaming(ctx context.Context, input *fi
 					hasExitCode = true
 					exitCode = *resp.ExitCode
 				}
+				var appended string
 				if remain := maxCapture - sb.Len(); remain > 0 {
 					out := resp.Output
 					if len(out) > remain {
 						out = out[:remain]
 					}
 					sb.WriteString(out)
+					appended = out
+				}
+				// 仅推送写入 sb 的片段，与末尾 Fire/recordMonitor 的截断累计一致，避免最终 tool_result 短于已展示增量。
+				if w.outputChunk != nil && strings.TrimSpace(appended) != "" {
+					w.outputChunk("execute", tid, appended)
 				}
 				if outW.Send(resp, nil) {
 					success = false
@@ -109,12 +154,33 @@ func (w *einoStreamingShellWrap) ExecuteStreaming(ctx context.Context, input *fi
 			success = false
 			invokeErr = fmt.Errorf("execute exited with code %d", exitCode)
 		}
+		// WithTimeout 触发后，子进程常被信号结束，local 侧多报 exit -1 / canceled，错误链里不一定带 DeadlineExceeded。
+		// 用执行所用 ctx 归一化，便于 UI 展示「超时」而非含糊的 -1。
+		if tctx != nil && errors.Is(tctx.Err(), context.DeadlineExceeded) {
+			success = false
+			invokeErr = context.DeadlineExceeded
+		}
+		// ADK 从本 Pipe 拼出 tool 消息正文；仅 Notify 尾标不会进入模型上下文。超时句写入流，与 UI 一致。
+		if invokeErr != nil && errors.Is(invokeErr, context.DeadlineExceeded) {
+			hint := "\n\n" + einoExecuteTimeoutUserHint() + "\n"
+			_ = outW.Send(&filesystem.ExecuteResponse{Output: hint}, nil)
+			if w.outputChunk != nil && tid != "" {
+				w.outputChunk("execute", tid, hint)
+			}
+			if remain := maxCapture - sb.Len(); remain > 0 {
+				h := hint
+				if len(h) > remain {
+					h = h[:remain]
+				}
+				sb.WriteString(h)
+			}
+		}
 		if w.recordMonitor != nil {
 			w.recordMonitor(command, sb.String(), success, invokeErr)
 		}
 		w.invokeNotify.Fire(tid, "execute", agentTag, success, sb.String(), invokeErr)
 		outW.Close()
-	}(sr, cmd)
+	}(sr, userCmd, execCancel, execCtx)
 
 	return outR, nil
 }
diff --git a/internal/multiagent/eino_single_runner.go b/internal/multiagent/eino_single_runner.go
index 388d6379..c5e66db1 100644
--- a/internal/multiagent/eino_single_runner.go
+++ b/internal/multiagent/eino_single_runner.go
@@ -143,7 +143,7 @@ func RunEinoSingleChatModelAgent(
 	}
 	if einoSkillMW != nil {
 		if einoFSTools && einoLoc != nil {
-			fsMw, fsErr := subAgentFilesystemMiddleware(ctx, einoLoc, toolInvokeNotify, einoSingleAgentName, einoExecMonitor)
+			fsMw, fsErr := subAgentFilesystemMiddleware(ctx, einoLoc, toolInvokeNotify, einoSingleAgentName, einoExecMonitor, agentToolTimeoutMinutes(appCfg), toolOutputChunk)
 			if fsErr != nil {
 				return nil, fmt.Errorf("eino single filesystem 中间件: %w", fsErr)
 			}
diff --git a/internal/multiagent/eino_skills.go b/internal/multiagent/eino_skills.go
index 5a0274ac..d20f8f40 100644
--- a/internal/multiagent/eino_skills.go
+++ b/internal/multiagent/eino_skills.go
@@ -82,6 +82,8 @@ func subAgentFilesystemMiddleware(
 	invokeNotify *einomcp.ToolInvokeNotifyHolder,
 	einoAgentName string,
 	recordMonitor func(command, stdout string, success bool, invokeErr error),
+	toolTimeoutMinutes int,
+	outputChunk func(toolName, toolCallID, chunk string),
 ) (adk.ChatModelAgentMiddleware, error) {
 	if loc == nil {
 		return nil, nil
@@ -89,10 +91,20 @@ func subAgentFilesystemMiddleware(
 	return filesystem.New(ctx, &filesystem.MiddlewareConfig{
 		Backend: loc,
 		StreamingShell: &einoStreamingShellWrap{
-			inner:         loc,
-			invokeNotify:  invokeNotify,
-			einoAgentName: strings.TrimSpace(einoAgentName),
-			recordMonitor: recordMonitor,
+			inner:              loc,
+			invokeNotify:       invokeNotify,
+			einoAgentName:      strings.TrimSpace(einoAgentName),
+			outputChunk:        outputChunk,
+			recordMonitor:      recordMonitor,
+			toolTimeoutMinutes: toolTimeoutMinutes,
 		},
 	})
 }
+
+// agentToolTimeoutMinutes 返回 agent.tool_timeout_minutes（与 executeToolViaMCP 一致）；cfg 为 nil 时 0。
+func agentToolTimeoutMinutes(cfg *config.Config) int {
+	if cfg == nil {
+		return 0
+	}
+	return cfg.Agent.ToolTimeoutMinutes
+}
diff --git a/internal/multiagent/runner.go b/internal/multiagent/runner.go
index 65ea5c36..f9478262 100644
--- a/internal/multiagent/runner.go
+++ b/internal/multiagent/runner.go
@@ -244,7 +244,7 @@ func RunDeepAgent(
 			}
 			if einoSkillMW != nil {
 				if einoFSTools && einoLoc != nil {
-					subFs, fsErr := subAgentFilesystemMiddleware(ctx, einoLoc, toolInvokeNotify, id, einoExecMonitor)
+					subFs, fsErr := subAgentFilesystemMiddleware(ctx, einoLoc, toolInvokeNotify, id, einoExecMonitor, agentToolTimeoutMinutes(appCfg), toolOutputChunk)
 					if fsErr != nil {
 						return nil, fmt.Errorf("子代理 %q filesystem 中间件: %w", id, fsErr)
 					}
@@ -376,10 +376,12 @@ func RunDeepAgent(
 	if einoLoc != nil && einoFSTools {
 		deepBackend = einoLoc
 		deepShell = &einoStreamingShellWrap{
-			inner:         einoLoc,
-			invokeNotify:  toolInvokeNotify,
-			einoAgentName: orchestratorName,
-			recordMonitor: einoExecMonitor,
+			inner:              einoLoc,
+			invokeNotify:       toolInvokeNotify,
+			einoAgentName:      orchestratorName,
+			outputChunk:        toolOutputChunk,
+			recordMonitor:      einoExecMonitor,
+			toolTimeoutMinutes: agentToolTimeoutMinutes(appCfg),
 		}
 	}
 
@@ -443,7 +445,7 @@ func RunDeepAgent(
 		// 构建 filesystem 中间件（与 Deep sub-agent 一致）
 		var peFsMw adk.ChatModelAgentMiddleware
 		if einoSkillMW != nil && einoFSTools && einoLoc != nil {
-			peFsMw, err = subAgentFilesystemMiddleware(ctx, einoLoc, toolInvokeNotify, "executor", einoExecMonitor)
+			peFsMw, err = subAgentFilesystemMiddleware(ctx, einoLoc, toolInvokeNotify, "executor", einoExecMonitor, agentToolTimeoutMinutes(appCfg), toolOutputChunk)
 			if err != nil {
 				return nil, fmt.Errorf("plan_execute filesystem 中间件: %w", err)
 			}