diff --git a/internal/docgov/state_machine_duty_policy_test.go b/internal/docgov/state_machine_duty_policy_test.go
new file mode 100644
index 00000000..f55b9c19
--- /dev/null
+++ b/internal/docgov/state_machine_duty_policy_test.go
@@ -0,0 +1,74 @@
+package docgov
+
+import (
+	"testing"
+)
+
+func TestTransitionAuditDetailsIncludeDutyPolicy(t *testing.T) {
+	sm := NewStateMachine()
+	doc := &DocumentRecord{
+		DocID:        "doc_audit_policy",
+		CurrentState: StateDrafting,
+		AuthorID:     7,
+		ReviewerID:   7,
+		ApproverID:   7,
+		DutyPolicy:   "author_only",
+		DutyLocked:   true,
+		Config:       DefaultDocumentConfig(),
+	}
+
+	audit, err := sm.TransitionSubmitForReview(doc, 7, RoleAuthor, "A")
+	if err != nil {
+		t.Fatalf("submit: %v", err)
+	}
+	if audit.Details["duty_policy"] != "author_only" {
+		t.Fatalf("submit details: %+v", audit.Details)
+	}
+
+	audit, err = sm.TransitionReviewApprove(doc, 7, RoleReviewer, "A", "ok")
+	if err != nil {
+		t.Fatalf("review: %v", err)
+	}
+	if audit.Details["duty_policy"] != "author_only" {
+		t.Fatalf("review details: %+v", audit.Details)
+	}
+
+	audit, err = sm.TransitionApproverApprove(doc, 7, RoleApprover, "A", "ok")
+	if err != nil {
+		t.Fatalf("approve: %v", err)
+	}
+	if audit.Details["duty_policy"] != "author_only" {
+		t.Fatalf("approve details: %+v", audit.Details)
+	}
+}
+
+func TestTransitionRejectAuditDetailsIncludeDutyPolicy(t *testing.T) {
+	sm := NewStateMachine()
+	doc := &DocumentRecord{
+		DocID:        "doc_audit_reject",
+		CurrentState: StateReviewing,
+		IsLocked:     true,
+		AuthorID:     7,
+		ReviewerID:   7,
+		ApproverID:   7,
+		DutyPolicy:   "author_only",
+		Config:       DefaultDocumentConfig(),
+	}
+	audit, err := sm.TransitionReviewReject(doc, 7, RoleReviewer, "A", "need fix")
+	if err != nil {
+		t.Fatalf("review reject: %v", err)
+	}
+	if audit.Details["duty_policy"] != "author_only" {
+		t.Fatalf("review reject details: %+v", audit.Details)
+	}
+
+	doc.CurrentState = StateApproving
+	doc.IsLocked = true
+	audit, err = sm.TransitionApproverReject(doc, 7, RoleApprover, "A", "need rework", StateDrafting)
+	if err != nil {
+		t.Fatalf("approver reject: %v", err)
+	}
+	if audit.Details["duty_policy"] != "author_only" {
+		t.Fatalf("approver reject details: %+v", audit.Details)
+	}
+}
diff --git a/internal/projectinstance/duty_action_test.go b/internal/projectinstance/duty_action_test.go
index 52642c48..7cffbbba 100644
--- a/internal/projectinstance/duty_action_test.go
+++ b/internal/projectinstance/duty_action_test.go
@@ -90,3 +90,34 @@ func TestClassifyAccess_NoneAndPreActivation(t *testing.T) {
 		t.Fatalf("pre-activation submit: %+v", preSubmit)
 	}
 }
+
+func TestClassifyAccess_AuthorOnlyMatrix(t *testing.T) {
+	dt := DocTaskPlan{
+		Enabled:    true,
+		DutyPolicy: DutyPolicyAuthorOnly,
+		Duties:     DocDuty{AuthorUserID: 7},
+	}
+	cases := []struct {
+		name      string
+		userID    int64
+		action    string
+		wantAllow bool
+		wantCode  string
+	}{
+		{"author run", 7, DocAccessActionRun, true, ""},
+		{"author edit", 7, DocAccessActionEdit, true, ""},
+		{"author submit", 7, DocAccessActionSubmit, true, ""},
+		{"author review", 7, DocAccessActionReview, true, ""},
+		{"author approve", 7, DocAccessActionApprove, true, ""},
+		{"other run denied", 2, DocAccessActionRun, false, AccessCodeForbiddenDuty},
+		{"other review denied", 2, DocAccessActionReview, false, AccessCodeForbiddenDuty},
+		{"other approve denied", 3, DocAccessActionApprove, false, AccessCodeForbiddenDuty},
+		{"creator cannot elevate", 9, DocAccessActionApprove, false, AccessCodeForbiddenDuty},
+	}
+	for _, tc := range cases {
+		got := classifyAccess(dt, tc.action, tc.userID, tc.userID == 9, true)
+		if got.Allowed != tc.wantAllow || (tc.wantCode != "" && got.Code != tc.wantCode) {
+			t.Fatalf("%s: got %+v want allow=%v code=%s", tc.name, got, tc.wantAllow, tc.wantCode)
+		}
+	}
+}
diff --git a/internal/projectinstance/gate_test.go b/internal/projectinstance/gate_test.go
index be9406e4..6d519253 100644
--- a/internal/projectinstance/gate_test.go
+++ b/internal/projectinstance/gate_test.go
@@ -56,3 +56,36 @@ func TestEvaluateStageReadiness_DutyModes(t *testing.T) {
 		t.Fatalf("approved full + unmanaged none should be ready, issues=%+v", issues)
 	}
 }
+
+func TestEvaluateStageReadiness_AuthorOnlyIsManaged(t *testing.T) {
+	t.Parallel()
+	stageDef := &workflowdef.StageDef{
+		Key: "V0.1_triage",
+		DocTasks: []workflowdef.DocTaskDef{
+			{Key: "intake", BlockingWhenEnabled: true, CreatorConfigurable: true},
+		},
+	}
+	plan := StagePlan{
+		StageKey: "V0.1_triage",
+		Enabled:  true,
+		DocTasks: []DocTaskPlan{{
+			TaskKey: "intake", Enabled: true,
+			DutyPolicy: DutyPolicyAuthorOnly,
+			Duties:     DocDuty{AuthorUserID: 7},
+		}},
+	}
+	ready, issues, items := evaluateStageReadiness(plan, stageDef, map[string]string{})
+	if ready {
+		t.Fatal("author_only blocking doc without approval must keep gate closed")
+	}
+	if len(issues) != 1 || issues[0].TaskKey != "intake" {
+		t.Fatalf("issues=%+v", issues)
+	}
+	if len(items) != 1 || !items[0].ApprovalManaged || !items[0].Required {
+		t.Fatalf("author_only must be approval-managed: %+v", items)
+	}
+	ready, _, _ = evaluateStageReadiness(plan, stageDef, map[string]string{"intake": "approved"})
+	if !ready {
+		t.Fatal("approved author_only doc should open the gate")
+	}
+}
diff --git a/internal/projectinstance/stage_access_test.go b/internal/projectinstance/stage_access_test.go
index b58a35dc..d246415c 100644
--- a/internal/projectinstance/stage_access_test.go
+++ b/internal/projectinstance/stage_access_test.go
@@ -265,6 +265,56 @@ func mustActivateTestPlan(t *testing.T, svc *Service, projectID, userID int64) {
 	}
 }
 
+func TestResolveStageAccess_AuthorOnlyAuthorCanAct(t *testing.T) {
+	ctx := context.Background()
+	store := newMemStore()
+	_ = SeedProjectMeta(store, 510, LifecyclePlanning, "", 1, 0)
+	svc := NewService(store, testResolver(), nil, nil)
+	svc.SetAuthorOnlyPolicySource(&fakeAuthorOnlyPolicy{allowed: true, revision: 1})
+	svc.SetActiveMemberLookup(&mapMemberLookup{ids: map[int64]struct{}{7: {}}})
+
+	if _, err := svc.SaveWorkflowPlan(ctx, 510, 1, true, SavePlanInput{
+		Plan: authorOnlyPlan(7), ExpectedPlanRevision: 0, ExpectedSelectionVersion: 1,
+	}); err != nil {
+		t.Fatalf("save: %v", err)
+	}
+	preview, err := svc.ActivationPreview(ctx, 510, 1, true)
+	if err != nil {
+		t.Fatalf("preview: %v", err)
+	}
+	if _, err := svc.Activate(ctx, 510, 1, true, ActivateInput{
+		ConfirmationToken:      preview.ConfirmationToken,
+		ExpectedProjectVersion: preview.ExpectedProjectVersion,
+		ExpectedPlanRevision:   preview.ExpectedPlanRevision,
+	}); err != nil {
+		t.Fatalf("activate: %v", err)
+	}
+
+	author, err := svc.ResolveStageAccess(ctx, 510, 7, false)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !author.TaskKeyAllowed("intake") {
+		t.Fatalf("author_only author must act on intake, got %+v", author)
+	}
+	if !author.StageKeyAllowed("V0.1_triage") {
+		t.Fatal("author_only author must access active stage")
+	}
+
+	outsider, _ := svc.ResolveStageAccess(ctx, 510, 99, false)
+	if outsider.TaskKeyAllowed("intake") {
+		t.Fatal("non-author must not act on author_only intake")
+	}
+	d := svc.CheckDocTaskAccess(ctx, 510, 7, "intake", DocAccessActionApprove, false)
+	if !d.Allowed {
+		t.Fatalf("author_only author must approve: %+v", d)
+	}
+	d = svc.CheckDocTaskAccess(ctx, 510, 99, "intake", DocAccessActionApprove, false)
+	if d.Allowed || d.Code != AccessCodeForbiddenDuty {
+		t.Fatalf("outsider approve denied: %+v", d)
+	}
+}
+
 // errGoverningStore 仅覆盖治理查询失败路径。
 type errGoverningStore struct {
 	Store