feat(tasks): stop tasks that miss a configurable findings checkpoint

server/dto.go

@@ -71,6 +71,11 @@ type TaskDTO struct {
 	CoverageEnabled    bool               `json:"coverage_enabled"` // 资产覆盖度功能开关(创建时定)
 	ShareGlobalAssets  bool               `json:"share_global_assets"`
 	WorkerCount        int                `json:"worker_count"` // 本任务 Worker 数;0=用全局默认
+
+	NoResultSeconds     int    `json:"no_result_seconds"`
+	NoResultMinFindings int    `json:"no_result_min_findings"`
+	NoResultMinSeverity string `json:"no_result_min_severity"`
+	StopReason          string `json:"stop_reason"`
 }
 
 type ProxyReconnectDTO struct {
@@ -166,6 +171,11 @@ func taskDTO(t *Task, status string) TaskDTO {
 		CoverageEnabled:    t.CoverageEnabled,
 		ShareGlobalAssets:  lifecycle.ShareGlobalAssets,
 		WorkerCount:        t.WorkerCount,
+
+		NoResultSeconds:     t.NoResultSeconds,
+		NoResultMinFindings: t.NoResultMinFindings,
+		NoResultMinSeverity: t.NoResultMinSeverity,
+		StopReason:          lifecycle.StopReason,
 	}
 }
 

server/engine_cancelcause_test.go

@@ -129,6 +129,7 @@ func TestSettleDrainAndGoalMetCausesAreDistinct(t *testing.T) {
 		code  string
 	}{
 		{agent.AbortSettleDrainTimeout, "settle_drain_timeout"},
+		{agent.AbortNoResultStop, "no_result_stop"},
 		{agent.AbortGoalMet, "goal_met"},
 	} {
 		e := NewEngine(nil)

server/engine_no_result_test.go

@@ -0,0 +1,228 @@
+package server
+
+import (
+	"context"
+	"errors"
+	"net/http/httptest"
+	"strconv"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/Autumn-27/artex/agent"
+	"github.com/Autumn-27/artex/db"
+)
+
+func TestNoResultRemaining(t *testing.T) {
+	for _, tc := range []struct {
+		name  string
+		state taskLifecycleState
+		want  time.Duration
+	}{
+		{"running", taskLifecycleState{Status: "running", ActiveRunSeconds: 20, RunSegmentStartedAt: 100}, 10 * time.Second},
+		{"paused", taskLifecycleState{Status: "running", ActiveRunSeconds: 20, RunSegmentStartedAt: 100, Paused: true}, 40 * time.Second},
+		{"queued", taskLifecycleState{Status: "running", ActiveRunSeconds: 20, RunSegmentStartedAt: 100, Queued: true}, 40 * time.Second},
+		{"schedule closed", taskLifecycleState{Status: "paused", ActiveRunSeconds: 20, RunSegmentStartedAt: 100, PauseReason: "paused_by_schedule"}, 40 * time.Second},
+		{"revived", taskLifecycleState{Status: "running", ActiveRunSeconds: 200, NoResultBaseSeconds: 200, RunSegmentStartedAt: 100}, 30 * time.Second},
+		{"due", taskLifecycleState{Status: "running", ActiveRunSeconds: 60}, 0},
+		{"overdue", taskLifecycleState{Status: "running", ActiveRunSeconds: 1000}, 0},
+		{"no segment", taskLifecycleState{Status: "running"}, time.Minute},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			if got := noResultRemaining(60, tc.state, 130); got != tc.want {
+				t.Fatalf("remaining=%s, want %s", got, tc.want)
+			}
+		})
+	}
+}
+
+func TestNoResultCoordinatorTerminalExitAllowsRevival(t *testing.T) {
+	for _, status := range []string{"done", "failed", "timeout"} {
+		t.Run(status, func(t *testing.T) {
+			task := &Task{ID: "1", Status: status, NoResultSeconds: 60}
+			m := &Manager{tasks: map[string]*Task{task.ID: task}}
+			e := NewEngine(m)
+			ctx, cancel := context.WithTimeout(t.Context(), 5*time.Second)
+			defer cancel()
+			e.startDeadlineCoordinator(ctx, task)
+			e.runtimeMu.Lock()
+			rt := e.runtimes[task.ID]
+			e.runtimeMu.Unlock()
+			done := make(chan struct{})
+			go func() { rt.wg.Wait(); close(done) }()
+			select {
+			case <-done:
+			case <-ctx.Done():
+				t.Fatal("terminal coordinator did not exit")
+			}
+			if _, exists := e.coordStarted.Load(task.ID); exists {
+				t.Fatal("terminal exit retained coordinator marker")
+			}
+			task.updateLifecycle(func(s *taskLifecycleState) { s.Status = "running" })
+			e.startDeadlineCoordinator(ctx, task)
+			if _, exists := e.coordStarted.Load(task.ID); !exists {
+				t.Fatal("revival failed to start coordinator")
+			}
+			cancel()
+			rt.wg.Wait()
+		})
+	}
+}
+
+func TestNoResultCheckpointAndRevival(t *testing.T) {
+	m, err := NewManager(t.TempDir(), "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer m.Close()
+	for _, tc := range []struct {
+		name, severity string
+		wantStop       bool
+	}{
+		{"no findings", "", true}, {"qualifying", "high", false}, {"below threshold", "low", true},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			task, err := m.CreateTaskWithOptions("checkpoint test", "goal", db.TaskCreateOptions{NoResultSeconds: 60, NoResultMinFindings: 1, NoResultMinSeverity: "high"})
+			if err != nil {
+				t.Fatal(err)
+			}
+			defer func() { _, _ = m.DeleteTask(task.ID, DeleteTaskOptions{}) }()
+			id, _ := strconv.ParseInt(task.ID, 10, 64)
+			if err := m.SetTaskStatus(task.ID, "running"); err != nil {
+				t.Fatal(err)
+			}
+			if _, err := m.pg.Exec(`UPDATE tasks SET active_run_seconds=60 WHERE id=$1`, id); err != nil {
+				t.Fatal(err)
+			}
+			if err := m.syncTaskRuntime(task.ID, id); err != nil {
+				t.Fatal(err)
+			}
+			if tc.severity != "" {
+				if _, err := m.pg.AddFinding(id, 0, "test", "test", tc.severity, "", "", "test", nil); err != nil {
+					t.Fatal(err)
+				}
+			}
+			e := NewEngine(m)
+			stop, err := e.checkNoResultCheckpoint(task)
+			if err != nil || stop != tc.wantStop {
+				t.Fatalf("stop=%v err=%v", stop, err)
+			}
+			stored, err := m.pg.GetTask(id)
+			if err != nil || stored.NoResultCheckedAt == nil {
+				t.Fatalf("missing durable check: %+v, %v", stored, err)
+			}
+			// Reloading a checked task must preserve the one-shot decision.
+			reloaded := taskFromPG(stored, task.Store, nil)
+			if again, err := e.checkNoResultCheckpoint(reloaded); err != nil || again {
+				t.Fatalf("rechecked: %v, %v", again, err)
+			}
+			if !stop {
+				// Losing the qualifying finding later does not start a new check.
+				if _, err := m.pg.Exec(`DELETE FROM findings WHERE task_id=$1`, id); err != nil {
+					t.Fatal(err)
+				}
+				e.deadlineCoordinator(t.Context(), task)
+				if m.TaskStatus(task.ID) != "running" {
+					t.Fatal("passed task stopped")
+				}
+				return
+			}
+			// A finding arriving during settling cannot undo the decision.
+			if _, err := m.pg.AddFinding(id, 0, "test", "late", "high", "", "", "test", nil); err != nil {
+				t.Fatal(err)
+			}
+			provider := &scriptedLLMProvider{err: errors.New("test final planner unavailable")}
+			planner := agent.NewPlanner(provider, "test", t.TempDir(), nil, 0, 1)
+			e.SetAuthoritativeAgentResolver(func(*Task) (*agent.Planner, *agent.Worker) { return planner, &agent.Worker{} })
+			e.settleTask(t.Context(), task, db.StopReasonNoResult)
+			state := task.lifecycleSnapshot()
+			if state.Status != "timeout" || state.StopReason != db.StopReasonNoResult || !e.isSettling(task.ID) {
+				t.Fatalf("settled: %+v", state)
+			}
+			dto := taskDTO(task, "timeout")
+			if dto.StopReason != db.StopReasonNoResult || dto.NoResultSeconds != 60 {
+				t.Fatalf("DTO: %+v", dto)
+			}
+			if err := m.applyTaskAdmission(task.ID, "timeout", "running", false, "resume", false, nil); err != nil {
+				t.Fatal(err)
+			}
+			e.resetTimeoutRevival(task.ID)
+			state = task.lifecycleSnapshot()
+			if state.NoResultCheckedAt != 0 || state.StopReason != "" || state.NoResultBaseSeconds != state.ActiveRunSeconds || noResultRemaining(60, state, time.Now().Unix()) != time.Minute || e.isSettling(task.ID) {
+				t.Fatalf("revived: %+v", state)
+			}
+			stored, err = m.pg.GetTask(id)
+			if err != nil || stored.NoResultCheckedAt != nil || stored.StopReason != "" || stored.NoResultBaseSeconds != 60 {
+				t.Fatalf("revival not durable: %+v, %v", stored, err)
+			}
+		})
+	}
+}
+
+func TestNoResultCoordinatorStopsAndReleasesMarker(t *testing.T) {
+	m, err := NewManager(t.TempDir(), "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer m.Close()
+	task, err := m.CreateTaskWithOptions("coordinator stop", "goal", db.TaskCreateOptions{NoResultSeconds: 60})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() { _, _ = m.DeleteTask(task.ID, DeleteTaskOptions{}) }()
+	id, _ := strconv.ParseInt(task.ID, 10, 64)
+	if _, err := m.pg.Exec(`UPDATE tasks SET active_run_seconds=60 WHERE id=$1`, id); err != nil {
+		t.Fatal(err)
+	}
+	if err := m.syncTaskRuntime(task.ID, id); err != nil {
+		t.Fatal(err)
+	}
+	e := NewEngine(m)
+	// Commit a failed checkpoint, then model a process restart before settling.
+	if stop, err := e.checkNoResultCheckpoint(task); err != nil || !stop {
+		t.Fatalf("initial decision: %v, %v", stop, err)
+	}
+	if _, err := m.pg.AddFinding(id, 0, "test", "late after decision", "high", "", "", "test", nil); err != nil {
+		t.Fatal(err)
+	}
+	stored, err := m.pg.GetTask(id)
+	if err != nil {
+		t.Fatal(err)
+	}
+	task = taskFromPG(stored, task.Store, nil)
+	m.mu.Lock()
+	m.tasks[task.ID] = task
+	m.mu.Unlock()
+	e = NewEngine(m)
+	provider := &scriptedLLMProvider{err: errors.New("test final planner unavailable")}
+	planner := agent.NewPlanner(provider, "test", t.TempDir(), nil, 0, 1)
+	e.SetAuthoritativeAgentResolver(func(*Task) (*agent.Planner, *agent.Worker) { return planner, &agent.Worker{} })
+	ctx, cancel := context.WithTimeout(t.Context(), 10*time.Second)
+	defer cancel()
+	e.startDeadlineCoordinator(ctx, task)
+	e.runtimeMu.Lock()
+	rt := e.runtimes[task.ID]
+	e.runtimeMu.Unlock()
+	done := make(chan struct{})
+	go func() { rt.wg.Wait(); close(done) }()
+	select {
+	case <-done:
+	case <-ctx.Done():
+		t.Fatal("coordinator did not finish")
+	}
+	if m.TaskStatus(task.ID) != "timeout" || task.lifecycleSnapshot().StopReason != db.StopReasonNoResult {
+		t.Fatal("coordinator did not stop task")
+	}
+	if _, exists := e.coordStarted.Load(task.ID); exists {
+		t.Fatal("coordinator marker survived exit")
+	}
+}
+
+func TestCreateTaskRejectsInvalidNoResultSeverity(t *testing.T) {
+	s := &Server{}
+	w := httptest.NewRecorder()
+	s.createTask(w, httptest.NewRequest("POST", "/api/tasks", strings.NewReader(`{"description":"test","goal":"test","no_result_min_severity":"urgent"}`)))
+	if w.Code != 400 {
+		t.Fatalf("status=%d body=%s", w.Code, w.Body.String())
+	}
+}

server/engine_timeout.go

@@ -125,11 +125,16 @@ func (e *Engine) clockCtx(base context.Context, t *Task, final bool) context.Con
 
 // ---------- 协调器 ----------
 
+func needsNoResultCoordinator(t *Task) bool {
+	state := t.lifecycleSnapshot()
+	return t.NoResultSeconds > 0 && (state.NoResultCheckedAt == 0 || state.StopReason == db.StopReasonNoResult)
+}
+
 // startDeadlineCoordinator launches the per-task deadline timer once (idempotent).
 // Called from Run() and from the restart reload path, so non-active timeout tasks
 // still get settled after their deadline even without live planner/worker loops.
 func (e *Engine) startDeadlineCoordinator(ctx context.Context, t *Task) {
-	if t == nil || t.TimeoutSeconds <= 0 {
+	if t == nil || (t.TimeoutSeconds <= 0 && !needsNoResultCoordinator(t)) {
 		return
 	}
 	e.deleteMu.RLock()
@@ -137,55 +142,123 @@ func (e *Engine) startDeadlineCoordinator(ctx context.Context, t *Task) {
 		e.deleteMu.RUnlock()
 		return
 	}
-	if _, loaded := e.coordStarted.LoadOrStore(t.ID, true); loaded {
+	token := new(int)
+	if _, loaded := e.coordStarted.LoadOrStore(t.ID, token); loaded {
 		e.deleteMu.RUnlock()
 		return
 	}
 	rt := e.registerTaskRoutines(ctx, t.ID, 1)
 	e.deleteMu.RUnlock()
-	runTaskRoutine(rt, func(loopCtx context.Context) { e.deadlineCoordinator(loopCtx, t) })
+	runTaskRoutine(rt, func(loopCtx context.Context) {
+		defer func() {
+			// A terminal task may be revived while this routine is returning. Only
+			// remove our own marker, then ensure that revival has a coordinator.
+			if e.coordStarted.CompareAndDelete(t.ID, token) && loopCtx.Err() == nil && !e.isSettling(t.ID) && !isTerminalStatus(e.m.TaskStatus(t.ID)) {
+				e.startDeadlineCoordinator(ctx, t)
+			}
+		}()
+		e.deadlineCoordinator(loopCtx, t)
+	})
 }
 
-// deadlineCoordinator waits until the task's absolute deadline, then runs the settle
-// sequence. Absolute wall-clock: it keeps counting through pauses.
+// deadlineCoordinator watches both the absolute deadline and the one-shot active
+// runtime checkpoint. Only the absolute deadline keeps counting through pauses.
 func (e *Engine) deadlineCoordinator(ctx context.Context, t *Task) {
 	for {
-		select {
-		case <-ctx.Done():
+		if ctx.Err() != nil || isTerminalStatus(e.m.TaskStatus(t.ID)) {
 			return
-		default:
 		}
-		if isTerminalStatus(e.m.TaskStatus(t.ID)) {
-			return // already finished (goals met / failed) — nothing to time out
+		state := t.lifecycleSnapshot()
+		if state.NoResultCheckedAt > 0 && state.StopReason == db.StopReasonNoResult {
+			// Recover a committed failed checkpoint interrupted during settling.
+			e.settleTask(ctx, t, db.StopReasonNoResult)
+			return
 		}
-		dl := e.taskDeadline(t)
-		if dl <= 0 {
-			if sleepCtx(ctx, deadlinePollInterval) { // not yet stamped (task hasn't really run)
+		nap := deadlineMaxSleep
+		if dl := e.taskDeadline(t); dl > 0 {
+			remaining := time.Until(time.Unix(dl, 0))
+			if remaining <= 0 {
+				e.settleTask(ctx, t, "")
 				return
 			}
-			continue
+			nap = min(nap, remaining)
+		} else if t.TimeoutSeconds > 0 {
+			nap = deadlinePollInterval
 		}
-		if remaining := time.Until(time.Unix(dl, 0)); remaining > 0 {
-			nap := remaining
-			if nap > deadlineMaxSleep {
-				nap = deadlineMaxSleep
+		if t.NoResultSeconds > 0 && state.NoResultCheckedAt == 0 {
+			remaining := noResultRemaining(t.NoResultSeconds, state, time.Now().Unix())
+			if remaining <= 0 {
+				stop, err := e.checkNoResultCheckpoint(t)
+				if err != nil {
+					log.Printf("[no-result] task %s 检查失败: %v", t.ID, err)
+					nap = deadlinePollInterval // DB errors never count as zero findings.
+				} else if stop {
+					e.settleTask(ctx, t, db.StopReasonNoResult)
+					return
+				}
+			} else {
+				nap = min(nap, remaining)
 			}
-			if sleepCtx(ctx, nap) {
-				return
-			}
-			continue
 		}
-		e.settleTask(ctx, t)
-		return
+		if t.TimeoutSeconds <= 0 && (t.NoResultSeconds <= 0 || t.lifecycleSnapshot().NoResultCheckedAt > 0) {
+			return
+		}
+		if sleepCtx(ctx, nap) {
+			return
+		}
 	}
 }
 
+// checkNoResultCheckpoint serializes the decision with terminal transitions and
+// revival. Once marked, later findings cannot reverse the decision.
+func (e *Engine) checkNoResultCheckpoint(t *Task) (bool, error) {
+	e.m.taskStateMu.Lock()
+	defer e.m.taskStateMu.Unlock()
+	state := t.lifecycleSnapshot()
+	if state.NoResultCheckedAt > 0 || isTerminalStatus(state.Status) || noResultRemaining(t.NoResultSeconds, state, time.Now().Unix()) > 0 {
+		return false, nil
+	}
+	id, err := strconv.ParseInt(t.ID, 10, 64)
+	if err != nil {
+		return false, err
+	}
+	count, err := e.m.pg.CountQualifyingFindings(id, t.NoResultMinSeverity)
+	if err != nil {
+		return false, err
+	}
+	minimum := max(1, t.NoResultMinFindings)
+	stop := count < minimum
+	checked, err := e.m.pg.MarkNoResultChecked(id, stop)
+	if err != nil || checked == nil {
+		return false, err
+	}
+	t.updateLifecycle(func(s *taskLifecycleState) {
+		s.NoResultCheckedAt = checked.Unix()
+		if stop {
+			s.StopReason = db.StopReasonNoResult
+		}
+	})
+	severity := t.NoResultMinSeverity
+	if severity == "" {
+		severity = "不限"
+	} else {
+		severity += "及以上"
+	}
+	summary := fmt.Sprintf("无成果检查通过：达标漏洞 %d/%d（等级%s），任务继续运行，之后不再检查", count, minimum, severity)
+	if stop {
+		runtime := taskRunSeconds(state.ActiveRunSeconds, state.RunSegmentStartedAt, checked.Unix(), state.Status, state.Paused, state.Queued) - state.NoResultBaseSeconds
+		summary = fmt.Sprintf("无成果止损：已运行 %s，达标漏洞 %d/%d（等级%s），任务自动停止", time.Duration(runtime)*time.Second, count, minimum, severity)
+	}
+	e.emitActivity(t, db.Activity{Worker: "system", Kind: "text", Summary: summary})
+	return stop, nil
+}
+
 // settleTask runs the ordered settle sequence once (§4 steps ①–⑥).
-func (e *Engine) settleTask(ctx context.Context, t *Task) {
+func (e *Engine) settleTask(ctx context.Context, t *Task, reason string) {
 	if !e.markSettling(t.ID) {
 		return
 	}
-	log.Printf("[deadline] task %s 到达超时上限,进入收尾时序", t.ID)
+	log.Printf("[deadline] task %s 进入收尾时序,原因=%s", t.ID, reason)
 
 	// ④ 等在跑 worker/planner drain(在跑 run 因夹逼的 MaxDuration 自行进收尾);
 	// 超过 grace 仍未清空 → 硬 cancel 该任务 exec ctx(settling-aware 分支正确归类)。
@@ -193,7 +266,11 @@ func (e *Engine) settleTask(ctx context.Context, t *Task) {
 	for e.inflightCount(t.ID) > 0 {
 		if time.Now().After(hardStop) {
 			log.Printf("[deadline] task %s drain 超时(%s),硬取消在跑 run", t.ID, settleDrainGrace)
-			e.cancelExec(t.ID, agent.AbortSettleDrainTimeout)
+			cause := agent.AbortSettleDrainTimeout
+			if reason == db.StopReasonNoResult {
+				cause = agent.AbortNoResultStop
+			}
+			e.cancelExec(t.ID, cause)
 			_ = sleepCtx(ctx, 3*time.Second) // 给 worker 分支一点时间落库/归类
 			break
 		}
@@ -203,7 +280,7 @@ func (e *Engine) settleTask(ctx context.Context, t *Task) {
 	}
 
 	// ⑤ 终局一轮 planner(任务超时词,最后目标判定,不产新意图)。
-	met := e.runFinalPlannerRound(ctx, t)
+	met := e.runFinalPlannerRound(ctx, t, reason)
 	if !e.beginTaskOperation(t.ID) {
 		return
 	}
@@ -215,7 +292,7 @@ func (e *Engine) settleTask(ctx context.Context, t *Task) {
 	if met {
 		status = "done"
 	}
-	won, err := e.m.SetTaskStatusGuarded(t.ID, status)
+	won, err := e.m.SetTaskStatusGuardedReason(t.ID, status, reason)
 	switch {
 	case err != nil:
 		log.Printf("[deadline] task %s 落终态失败: %v", t.ID, err)
@@ -229,7 +306,7 @@ func (e *Engine) settleTask(ctx context.Context, t *Task) {
 // runFinalPlannerRound drives exactly ONE terminal planner round with the
 // task-timeout planner words (final goal judgment; no new intents). Waits for the
 // LLM to be ready (bounded by ctx) so a completable task isn't mis-judged timeout.
-func (e *Engine) runFinalPlannerRound(ctx context.Context, t *Task) (met bool) {
+func (e *Engine) runFinalPlannerRound(ctx context.Context, t *Task, reason string) (met bool) {
 	if e.IsDeleting(t.ID) {
 		return false
 	}
@@ -253,16 +330,20 @@ func (e *Engine) runFinalPlannerRound(ctx context.Context, t *Task) (met bool) {
 	}
 	defer e.decInflight(t.ID)
 	emit := func(r db.Activity) { e.emitActivity(t, r) }
+	label := "任务超时收尾"
+	if reason == db.StopReasonNoResult {
+		label = "无成果止损收尾"
+	}
 	e.emitActivity(t, db.Activity{Worker: "planner", Kind: "round",
-		Summary: fmt.Sprintf("任务超时收尾·终局判定(第 %d 轮)", e.nextPlannerRound(t.ID))})
+		Summary: fmt.Sprintf("%s·终局判定(第 %d 轮)", label, e.nextPlannerRound(t.ID))})
 	tTaskID, _ := strconv.ParseInt(t.ID, 10, 64)
 	e.BeginLLMCall(t.ID)
-	met, reason, err := planner.Plan(fctx, tTaskID, e.m.assets, t.Store, t.Goal, t.drainTriggers(), emit)
+	met, decision, err := planner.Plan(fctx, tTaskID, e.m.assets, t.Store, t.Goal, t.drainTriggers(), emit)
 	e.EndLLMCall(t.ID)
 	if err != nil {
 		log.Printf("[deadline] task %s 终局规划出错: %v", t.ID, err)
 	} else if met {
-		log.Printf("[deadline] task %s 终局判定目标达成: %s", t.ID, reason)
+		log.Printf("[deadline] task %s 终局判定目标达成: %s", t.ID, decision)
 	}
 	return met
 }

server/goals.go

@@ -249,6 +249,10 @@ func (s *Server) admitTaskWhenScheduledWithGenerationChecked(t *Task, mode strin
 		// matching Engine gates before either parking it in FIFO or starting work;
 		// otherwise the old settling flag would make every worker skip forever.
 		s.engine.resetTimeoutRevival(t.ID)
+	} else if wasTerminal {
+		// A final settle round may finish as done. Revival must release its
+		// worker/planner barrier too, while preserving its deadline/checkpoint.
+		s.engine.settling.Delete(t.ID)
 	}
 	if shouldQueue {
 		if !wasQueued {

server/manager.go

@@ -64,7 +64,13 @@ type Task struct {
 	SourceTaskIDs      []int64 `json:"source_task_ids,omitempty"`
 	CompanyIDs         []int64 `json:"company_ids,omitempty"`
 	Status             string  `json:"status"` // persisted lifecycle status (done/failed/timeout 为终态；空/其它则由运行态推导)
-	// 任务级超时(见 docs/任务级超时与收尾设计.md)。DeadlineAt/FirstRunAt 为 unix 秒,0=未设/未运行。
+	// No-result options are immutable. Mutable checkpoint fields use lifecycleMu.
+	NoResultSeconds      int                    `json:"no_result_seconds"`
+	NoResultMinFindings  int                    `json:"no_result_min_findings"`
+	NoResultMinSeverity  string                 `json:"no_result_min_severity"`
+	NoResultBaseSeconds  int64                  `json:"no_result_base_seconds"`
+	NoResultCheckedAt    int64                  `json:"no_result_checked_at,omitempty"`
+	StopReason           string                 `json:"stop_reason"`
 	TimeoutSeconds       int                    `json:"timeout_seconds"`
 	PlanHeartbeatSeconds int                    `json:"plan_heartbeat_seconds"` // planner 心跳触发间隔(秒)
 	CoverageEnabled      bool                   `json:"coverage_enabled"`       // 资产覆盖度功能开关(创建时定,默认开)
@@ -111,6 +117,9 @@ type taskLifecycleState struct {
 	CompletedAt         int64
 	FirstRunAt          int64
 	DeadlineAt          int64
+	NoResultBaseSeconds int64
+	NoResultCheckedAt   int64
+	StopReason          string
 	ActiveRunSeconds    int64
 	RunSegmentStartedAt int64
 	SourceTaskIDs       []int64
@@ -144,6 +153,7 @@ func (t *Task) lifecycleSnapshotLocked() taskLifecycleState {
 		CompletedAt:         t.CompletedAt,
 		FirstRunAt:          t.FirstRunAt,
 		DeadlineAt:          t.DeadlineAt,
+		NoResultBaseSeconds: t.NoResultBaseSeconds, NoResultCheckedAt: t.NoResultCheckedAt, StopReason: t.StopReason,
 		ActiveRunSeconds:    t.ActiveRunSeconds,
 		RunSegmentStartedAt: t.RunSegmentStartedAt,
 		SourceTaskIDs:       append([]int64(nil), t.SourceTaskIDs...),
@@ -179,6 +189,9 @@ func (t *Task) updateLifecycle(update func(*taskLifecycleState)) {
 	t.CompletedAt = state.CompletedAt
 	t.FirstRunAt = state.FirstRunAt
 	t.DeadlineAt = state.DeadlineAt
+	t.NoResultBaseSeconds = state.NoResultBaseSeconds
+	t.NoResultCheckedAt = state.NoResultCheckedAt
+	t.StopReason = state.StopReason
 	t.ActiveRunSeconds = state.ActiveRunSeconds
 	t.RunSegmentStartedAt = state.RunSegmentStartedAt
 	t.SourceTaskIDs = append(t.SourceTaskIDs[:0], state.SourceTaskIDs...)
@@ -1154,8 +1167,10 @@ func taskFromPG(pt *pgdb.Task, store *pgdb.ExplorationStore, ic *intercept.Inter
 		LLMProfileIDs: append([]int64(nil), pt.LLMProfileIDs...), ActiveLLMProfileID: pt.ActiveLLMProfileID,
 		LLMChainRevision: pt.LLMChainRevision,
 		LLMFailoverState: pt.LLMFailoverState, LLMFailoverReason: pt.LLMFailoverReason,
-		SourceTaskIDs:  append([]int64(nil), pt.SourceTaskIDs...),
-		CompanyIDs:     append([]int64(nil), pt.CompanyIDs...),
+		SourceTaskIDs:   append([]int64(nil), pt.SourceTaskIDs...),
+		CompanyIDs:      append([]int64(nil), pt.CompanyIDs...),
+		NoResultSeconds: pt.NoResultSeconds, NoResultMinFindings: pt.NoResultMinFindings, NoResultMinSeverity: pt.NoResultMinSeverity,
+		NoResultBaseSeconds: pt.NoResultBaseSeconds, NoResultCheckedAt: unixOrZero(pt.NoResultCheckedAt), StopReason: pt.StopReason,
 		TimeoutSeconds: pt.TimeoutSeconds, PlanHeartbeatSeconds: pt.PlanHeartbeatSeconds,
 		CoverageEnabled: pt.CoverageEnabled, ShareGlobalAssets: pt.ShareGlobalAssets, WorkerCount: pt.WorkerCount,
 		FirstRunAt: unixOrZero(pt.FirstRunAt), DeadlineAt: unixOrZero(pt.DeadlineAt),
@@ -1490,7 +1505,9 @@ func (m *Manager) applyTaskAdmissionWithSchedule(id, expectedStatus, status stri
 		mode = ""
 	}
 
-	var queuedAt, completedAt, firstRunAt, deadlineAt, segmentStartedAt sql.NullTime
+	var queuedAt, completedAt, firstRunAt, deadlineAt, segmentStartedAt, noResultCheckedAt sql.NullTime
+	var noResultBaseSeconds int64
+	var stopReason string
 	var activeRunSeconds int64
 	var committedMode string
 	err = m.pg.QueryRow(`UPDATE tasks
@@ -1513,6 +1530,15 @@ func (m *Manager) applyTaskAdmissionWithSchedule(id, expectedStatus, status stri
 	        WHEN ($5 AND queued AND queue_mode='bootstrap') OR $4='bootstrap' THEN 'bootstrap'
 	        ELSE 'resume'
 	    END,
+	    no_result_base_seconds=CASE
+	        WHEN $6='timeout' AND stop_reason='no_result' AND $2 NOT IN ('done','failed','timeout') THEN active_run_seconds
+	        ELSE no_result_base_seconds
+	    END,
+	    no_result_checked_at=CASE
+	        WHEN $6='timeout' AND stop_reason='no_result' AND $2 NOT IN ('done','failed','timeout') THEN NULL
+	        ELSE no_result_checked_at
+	    END,
+	    stop_reason=CASE WHEN $6 IN ('done','failed','timeout') AND $2 NOT IN ('done','failed','timeout') THEN '' ELSE stop_reason END,
 	    first_run_at=CASE
 	        WHEN $6='timeout' AND $2 NOT IN ('done','failed','timeout') THEN NULL
 	        ELSE first_run_at
@@ -1524,8 +1550,8 @@ func (m *Manager) applyTaskAdmissionWithSchedule(id, expectedStatus, status stri
 	    ,active_run_seconds=active_run_seconds + CASE WHEN ($3 OR $2 IN ('done','failed','timeout')) AND run_segment_started_at IS NOT NULL THEN GREATEST(0, FLOOR(EXTRACT(EPOCH FROM (now() - run_segment_started_at)))::bigint) ELSE 0 END
 	    ,run_segment_started_at=CASE WHEN $3 OR $2 IN ('done','failed','timeout') THEN NULL ELSE run_segment_started_at END
 	WHERE id=$1 AND deleted_at IS NULL AND status=$6
-	RETURNING queued_at, queue_mode, completed_at, first_run_at, deadline_at, active_run_seconds, run_segment_started_at`, n, status, queued, mode, preservePosition, expectedStatus, manualUntil, preserveSchedule).
-		Scan(&queuedAt, &committedMode, &completedAt, &firstRunAt, &deadlineAt, &activeRunSeconds, &segmentStartedAt)
+	RETURNING queued_at, queue_mode, completed_at, first_run_at, deadline_at, active_run_seconds, run_segment_started_at, no_result_base_seconds, no_result_checked_at, stop_reason`, n, status, queued, mode, preservePosition, expectedStatus, manualUntil, preserveSchedule).
+		Scan(&queuedAt, &committedMode, &completedAt, &firstRunAt, &deadlineAt, &activeRunSeconds, &segmentStartedAt, &noResultBaseSeconds, &noResultCheckedAt, &stopReason)
 	if errors.Is(err, sql.ErrNoRows) {
 		return fmt.Errorf("task %s lifecycle changed before admission (expected status %q)", id, expectedStatus)
 	}
@@ -1557,6 +1583,12 @@ func (m *Manager) applyTaskAdmissionWithSchedule(id, expectedStatus, status stri
 			if deadlineAt.Valid {
 				state.DeadlineAt = deadlineAt.Time.Unix()
 			}
+			state.NoResultBaseSeconds = noResultBaseSeconds
+			state.NoResultCheckedAt = 0
+			if noResultCheckedAt.Valid {
+				state.NoResultCheckedAt = noResultCheckedAt.Time.Unix()
+			}
+			state.StopReason = stopReason
 			state.ActiveRunSeconds = activeRunSeconds
 			state.RunSegmentStartedAt = 0
 			if segmentStartedAt.Valid {
@@ -1846,6 +1878,9 @@ func (m *Manager) syncTaskRuntime(id string, n int64) error {
 	m.mu.Lock()
 	if t := m.tasks[id]; t != nil {
 		t.updateLifecycle(func(state *taskLifecycleState) {
+			state.NoResultBaseSeconds = pt.NoResultBaseSeconds
+			state.NoResultCheckedAt = unixOrZero(pt.NoResultCheckedAt)
+			state.StopReason = pt.StopReason
 			state.ActiveRunSeconds = pt.ActiveRunSeconds
 			state.RunSegmentStartedAt = unixOrZero(pt.RunSegmentStartedAt)
 		})
@@ -1930,13 +1965,21 @@ func (m *Manager) StampTaskFirstRun(id string) (int64, error) {
 // (resolves the completed↔timeout race — first terminal writer wins). Reflects the
 // won status on the live handle. won=false means another terminal already stuck.
 func (m *Manager) SetTaskStatusGuarded(id, status string) (won bool, err error) {
+	return m.SetTaskStatusGuardedReason(id, status, "")
+}
+
+func (m *Manager) SetTaskStatusGuardedReason(id, status, reason string) (won bool, err error) {
+	if status != "timeout" {
+		reason = ""
+	}
+
 	m.taskStateMu.Lock()
 	defer m.taskStateMu.Unlock()
 	n, err := strconv.ParseInt(id, 10, 64)
 	if err != nil {
 		return false, err
 	}
-	active, started, won, err := m.pg.SetTerminalStatusGuardedRuntime(n, status)
+	active, started, won, err := m.pg.SetTerminalStatusGuardedReasonRuntime(n, status, reason)
 	if err != nil || !won {
 		return won, err
 	}
@@ -1946,6 +1989,7 @@ func (m *Manager) SetTaskStatusGuarded(id, status string) (won bool, err error)
 	if t := m.tasks[id]; t != nil {
 		t.updateLifecycle(func(state *taskLifecycleState) {
 			state.Status = status
+			state.StopReason = reason
 			state.ActiveRunSeconds = active
 			state.RunSegmentStartedAt = unixOrZero(started)
 			if pgdb.IsTerminal(status) {
@@ -1985,6 +2029,9 @@ func (m *Manager) SetTaskStatus(id, status string) error {
 	m.mu.Lock()
 	if t := m.tasks[id]; t != nil {
 		t.updateLifecycle(func(state *taskLifecycleState) {
+			if !pgdb.IsTerminal(status) && pgdb.IsTerminal(state.Status) {
+				state.StopReason = ""
+			}
 			state.Status = status
 			state.ActiveRunSeconds = active
 			state.RunSegmentStartedAt = unixOrZero(started)

server/orchestration.go

@@ -239,6 +239,9 @@ func (s *Server) toolSpawnTask() actool.CoreTool {
 			"parent_ref":             strParam("可选：父任务 id(做父子关联)"),
 			"source_task_ids":        map[string]any{"type": "array", "items": map[string]any{"type": "string"}, "description": fmt.Sprintf("可选：只读继承的来源任务 id 列表(最多 %d 个)。子任务可只读引用这些任务已探明的资产/结论作为起点；与 parent_ref 的纯父子指针不同，这是内容继承。", db.MaxTaskSourceCount)},
 			"llm_profile_id":         map[string]any{"type": "integer", "description": "可选：指定本子任务 planner/worker 用的 LLM 配置 id(见 list_llm_profiles)；留空则继承父任务、再回退全局激活配置"},
+			"no_result_seconds":      map[string]any{"type": "integer", "description": "可选：累计实际运行这些秒后仅检查一次，不足达标漏洞数时停止。0=关闭，正数最低60秒；暂停和排队不计时"},
+			"no_result_min_findings": map[string]any{"type": "integer", "description": "无成果止损最少独立漏洞数，默认1；误报不计"},
+			"no_result_min_severity": map[string]any{"type": "string", "enum": []string{"", "low", "medium", "high", "critical"}, "description": "计数的最低漏洞等级（含以上），空=不限"},
 			"timeout_seconds":        map[string]any{"type": "integer", "description": "可选：任务级超时(秒)。到点后触发优雅收尾并进入 timeout 终态；留空或 0 = 不限时"},
 			"plan_heartbeat_seconds": map[string]any{"type": "integer", "description": "可选：planner 心跳触发间隔(秒)。距上轮规划结束/任务开始满该值且期间无触发 → 触发一轮规划(兜底死锁 + 唤醒去监督飞行中的 worker)。留空或 0 = 默认 600(10min)；"},
 			"seed_first_intent":      map[string]any{"type": "boolean", "description": "可选：对于简单任务可开启，创建时直接下发一条种子意图(内容=描述+目标)让 worker 免等首轮 planner 直接开跑测试；默认 false(走标准先规划再执行)。"},
@@ -250,6 +253,9 @@ func (s *Server) toolSpawnTask() actool.CoreTool {
 				ParentRef            string          `json:"parent_ref"`
 				SourceTaskIDs        []string        `json:"source_task_ids"`
 				LLMProfileID         json.RawMessage `json:"llm_profile_id"`
+				NoResultSeconds      int             `json:"no_result_seconds"`
+				NoResultMinFindings  int             `json:"no_result_min_findings"`
+				NoResultMinSeverity  string          `json:"no_result_min_severity"`
 				TimeoutSeconds       int             `json:"timeout_seconds"`
 				PlanHeartbeatSeconds int             `json:"plan_heartbeat_seconds"`
 				SeedFirstIntent      bool            `json:"seed_first_intent"`
@@ -330,9 +336,10 @@ func (s *Server) toolSpawnTask() actool.CoreTool {
 				}
 			}
 			t, err := s.m.CreateTaskWithOptions(a.Description, a.Goal, db.TaskCreateOptions{
-				Name:                 name,
-				SourceTaskIDs:        sourceIDs,
-				LLMProfileIDs:        llmIDs,
+				Name:            name,
+				SourceTaskIDs:   sourceIDs,
+				LLMProfileIDs:   llmIDs,
+				NoResultSeconds: a.NoResultSeconds, NoResultMinFindings: a.NoResultMinFindings, NoResultMinSeverity: a.NoResultMinSeverity,
 				TimeoutSeconds:       a.TimeoutSeconds,
 				PlanHeartbeatSeconds: a.PlanHeartbeatSeconds,
 			})

server/server.go

@@ -1703,10 +1703,13 @@ type createTaskReq struct {
 	CategoryID           *int64           `json:"category_id,omitempty"`
 	Description          string           `json:"description"`
 	Goal                 string           `json:"goal"`
-	LLMProfileID         *int64           `json:"llm_profile_id,omitempty"`    // 指定运行本任务的 LLM 配置;省略/null=用激活配置
-	LLMProfileIDs        []int64          `json:"llm_profile_ids,omitempty"`   // 有序任务级配置链;第一项初始生效
-	SourceTaskIDs        []string         `json:"source_task_ids,omitempty"`   // 仅直接、只读继承的来源任务
-	CompanyIDs           []int64          `json:"company_ids,omitempty"`       // 关联企业范围并快照关联当前企业资产;不复制资产或强制生成意图
+	LLMProfileID         *int64           `json:"llm_profile_id,omitempty"`  // 指定运行本任务的 LLM 配置;省略/null=用激活配置
+	LLMProfileIDs        []int64          `json:"llm_profile_ids,omitempty"` // 有序任务级配置链;第一项初始生效
+	SourceTaskIDs        []string         `json:"source_task_ids,omitempty"` // 仅直接、只读继承的来源任务
+	CompanyIDs           []int64          `json:"company_ids,omitempty"`     // 关联企业范围并快照关联当前企业资产;不复制资产或强制生成意图
+	NoResultSeconds      int              `json:"no_result_seconds"`
+	NoResultMinFindings  int              `json:"no_result_min_findings"`
+	NoResultMinSeverity  string           `json:"no_result_min_severity"`
 	TimeoutSeconds       int              `json:"timeout_seconds"`             // 任务级超时(秒);0/省略=不限时
 	PlanHeartbeatSeconds int              `json:"plan_heartbeat_seconds"`      // planner 心跳触发间隔(秒);0/省略=默认600(10min);下限=默认=600,低于自动抬到600
 	SeedFirstIntent      *bool            `json:"seed_first_intent,omitempty"` // 创建时直接下发一条种子意图(内容=描述+目标),让 worker 免等首轮 planner 直接开跑;省略/null=默认关闭,走标准先规划再执行。显式传 true 才开(CTF 常一 work 解决时可省掉开跑前的 planner 轮)。
@@ -1734,6 +1737,10 @@ func (s *Server) createTask(w http.ResponseWriter, r *http.Request) {
 		writeErr(w, 400, err.Error())
 		return
 	}
+	if err := db.NormalizeNoResultOptions(&db.TaskCreateOptions{NoResultSeconds: req.NoResultSeconds, NoResultMinFindings: req.NoResultMinFindings, NoResultMinSeverity: req.NoResultMinSeverity}); err != nil {
+		writeErr(w, 400, err.Error())
+		return
+	}
 	if req.TimeoutSeconds < 0 {
 		req.TimeoutSeconds = 0
 	}
@@ -1794,6 +1801,7 @@ func (s *Server) createTask(w http.ResponseWriter, r *http.Request) {
 		Schedule: schedule,
 		Name:     strings.TrimSpace(req.Name), CategoryID: req.CategoryID,
 		SourceTaskIDs: sourceIDs, CompanyIDs: req.CompanyIDs, LLMProfileIDs: req.LLMProfileIDs,
+		NoResultSeconds: req.NoResultSeconds, NoResultMinFindings: req.NoResultMinFindings, NoResultMinSeverity: req.NoResultMinSeverity,
 		TimeoutSeconds: req.TimeoutSeconds, PlanHeartbeatSeconds: req.PlanHeartbeatSeconds,
 		CoverageEnabled:   req.CoverageEnabled,
 		ShareGlobalAssets: req.ShareGlobalAssets,

server/task_runtime.go

@@ -1,5 +1,7 @@
 package server
 
+import "time"
+
 // taskRunSeconds computes displayed active runtime from persisted segment data.
 // Segment timestamps are unix seconds; a zero start means no active segment.
 func taskRunSeconds(active, segmentStarted, now int64, status string, paused, queued bool) int64 {
@@ -23,3 +25,12 @@ func finalizeTaskRunSeconds(active, segmentStarted, now int64) (int64, int64) {
 	}
 	return active, 0
 }
+
+// noResultRemaining excludes pauses, queue time and closed schedule windows by
+// using the same active execution segments as the task runtime display.
+func noResultRemaining(seconds int, state taskLifecycleState, now int64) time.Duration {
+	runtime := taskRunSeconds(state.ActiveRunSeconds, state.RunSegmentStartedAt, now, state.Status, state.Paused, state.Queued)
+	elapsed := max(int64(0), runtime-state.NoResultBaseSeconds)
+	remaining := max(int64(0), int64(seconds)-elapsed)
+	return time.Duration(remaining) * time.Second
+}