diff --git a/packages/views/issues/components/attribution-badge.tsx b/packages/views/issues/components/attribution-badge.tsx
index 88aeb5c25..9ffa57784 100644
--- a/packages/views/issues/components/attribution-badge.tsx
+++ b/packages/views/issues/components/attribution-badge.tsx
@@ -46,6 +46,9 @@ export function AttributionBadge({
     case "comment_source":
       sourceLabel = t(($) => $.execution_log.attribution.source_comment_source);
       break;
+    case "trigger_owner":
+      sourceLabel = t(($) => $.execution_log.attribution.source_trigger_owner);
+      break;
     case "rule_owner":
       sourceLabel = t(($) => $.execution_log.attribution.source_rule_owner);
       break;
diff --git a/packages/views/locales/en/issues.json b/packages/views/locales/en/issues.json
index 45de673b0..1898393ea 100644
--- a/packages/views/locales/en/issues.json
+++ b/packages/views/locales/en/issues.json
@@ -395,6 +395,7 @@
       "source_direct_human": "Direct member action",
       "source_delegation": "Delegated from another run",
       "source_comment_source": "From a comment thread",
+      "source_trigger_owner": "Autopilot trigger creator",
       "source_rule_owner": "Autopilot rule publisher",
       "source_owner_fallback": "No precise owner — attributed to the agent owner",
       "source_backfill": "Backfilled attribution",
diff --git a/packages/views/locales/ja/issues.json b/packages/views/locales/ja/issues.json
index 1effc75ee..123139bb0 100644
--- a/packages/views/locales/ja/issues.json
+++ b/packages/views/locales/ja/issues.json
@@ -379,6 +379,7 @@
       "source_direct_human": "メンバーの直接操作",
       "source_delegation": "別の実行から委任",
       "source_comment_source": "コメントスレッドから",
+      "source_trigger_owner": "オートパイロットのトリガー作成者",
       "source_rule_owner": "オートパイロットのルール公開者",
       "source_owner_fallback": "正確な責任者なし — エージェント所有者に帰属",
       "source_backfill": "バックフィルされた帰属",
diff --git a/packages/views/locales/ko/issues.json b/packages/views/locales/ko/issues.json
index 0237dc683..4aeb5a21d 100644
--- a/packages/views/locales/ko/issues.json
+++ b/packages/views/locales/ko/issues.json
@@ -379,6 +379,7 @@
       "source_direct_human": "멤버 직접 작업",
       "source_delegation": "다른 실행에서 위임됨",
       "source_comment_source": "댓글 스레드에서",
+      "source_trigger_owner": "오토파일럿 트리거 작성자",
       "source_rule_owner": "오토파일럿 규칙 게시자",
       "source_owner_fallback": "정확한 담당자 없음 — 에이전트 소유자에게 귀속",
       "source_backfill": "백필된 귀속",
diff --git a/packages/views/locales/zh-Hans/issues.json b/packages/views/locales/zh-Hans/issues.json
index 517ab8298..3bee6e67d 100644
--- a/packages/views/locales/zh-Hans/issues.json
+++ b/packages/views/locales/zh-Hans/issues.json
@@ -379,6 +379,7 @@
       "source_direct_human": "成员直接操作",
       "source_delegation": "由其他运行委托",
       "source_comment_source": "来自评论线程",
+      "source_trigger_owner": "Autopilot 触发器创建者",
       "source_rule_owner": "Autopilot 规则发布者",
       "source_owner_fallback": "无精确责任人 —— 归到 agent 所有者",
       "source_backfill": "回填的归因",
diff --git a/server/internal/attribution/attribution.go b/server/internal/attribution/attribution.go
index 58f61d24a..c73e6e8c4 100644
--- a/server/internal/attribution/attribution.go
+++ b/server/internal/attribution/attribution.go
@@ -42,8 +42,18 @@ const (
 	// agent/system-authored comment; the human is resolved through
 	// comment.source_task_id (a special case of delegation, MUL-4302 §3.3).
 	SourceCommentSource Source = "comment_source"
-	// SourceRuleOwner — an autopilot trigger enqueued the run; the accountable
-	// human is the publisher of the rule's active version (MUL-4302 §3.4).
+	// SourceTriggerOwner — an autopilot schedule/webhook trigger enqueued the run;
+	// the accountable human is the member who CREATED that specific trigger (set up
+	// the schedule / registered the webhook). Preferred over rule_owner: a run is
+	// accountable to whoever armed the trigger that fired it, not to whoever last
+	// published the rule (MUL-4302; Bohan's refinement). originator stays NULL — an
+	// autonomous fire carries no human authorization — so this is the same authz-safe
+	// audit-only divergence as rule_owner.
+	SourceTriggerOwner Source = "trigger_owner"
+	// SourceRuleOwner — an autopilot trigger enqueued the run but its creator is not
+	// recoverable (a trigger created before per-trigger creators were recorded); the
+	// accountable human degrades to the publisher of the rule's active version
+	// (MUL-4302 §3.4). Precise, but coarser than trigger_owner.
 	SourceRuleOwner Source = "rule_owner"
 	// SourceOwnerFallback — nothing above resolved a human, so attribution
 	// degrades to the agent owner. This is DEGRADED, not compliance-grade, and
@@ -63,7 +73,7 @@ const (
 // attribution-coverage health metric (MUL-4302 §9).
 func (src Source) Precise() bool {
 	switch src {
-	case SourceDirectHuman, SourceDelegation, SourceCommentSource, SourceRuleOwner:
+	case SourceDirectHuman, SourceDelegation, SourceCommentSource, SourceTriggerOwner, SourceRuleOwner:
 		return true
 	default:
 		return false
@@ -335,6 +345,27 @@ func RuleOwner(publisherUserID, ruleVersionID pgtype.UUID, evidenceKind Evidence
 	return finalizeAttribution(r)
 }
 
+// TriggerOwner builds attribution for an autopilot schedule/webhook run keyed to
+// the human who created the firing trigger (MUL-4302; Bohan's refinement). Like
+// RuleOwner, no human authorized the run, so UserID (originator) stays NULL and
+// only the audit-accountable side is set — to creatorUserID, the trigger's member
+// creator. Evidence is caller-supplied (autopilot_run for run_only, the issue for
+// create_issue). An invalid creator degrades to unattributed so callers that lost
+// the creator fall back to rule_owner rather than fabricating a human.
+func TriggerOwner(creatorUserID pgtype.UUID, evidenceKind EvidenceKind, evidenceRefID pgtype.UUID) Result {
+	r := Result{
+		EvidenceKind:  evidenceKind,
+		EvidenceRefID: evidenceRefID,
+	}
+	if creatorUserID.Valid {
+		r.Source = SourceTriggerOwner
+		r.AccountableUserID = creatorUserID
+	} else {
+		r.Source = SourceUnattributed
+	}
+	return finalizeAttribution(r)
+}
+
 // OwnerFallback degrades an UNATTRIBUTED result to owner_fallback (MUL-4302 §3.5):
 // the agent owner becomes the accountable human so no run is left without one, but
 // this is a DEGRADED label (Source.Precise() == false) and must be surfaced
diff --git a/server/internal/attribution/attribution_test.go b/server/internal/attribution/attribution_test.go
index 1a289a3b7..dc09a5926 100644
--- a/server/internal/attribution/attribution_test.go
+++ b/server/internal/attribution/attribution_test.go
@@ -287,8 +287,9 @@ func TestAccountableMirrorsOriginatorInvariant(t *testing.T) {
 		// Authorization must never be forged from the audit side: a non-NULL
 		// accountable with a NULL originator is allowed (divergence), but the
 		// reverse — originator set from accountable — must never happen implicitly.
-		if r.AccountableUserID.Valid && !r.UserID.Valid && r.Source != SourceRuleOwner && r.Source != SourceOwnerFallback {
-			t.Errorf("result[%d]: accountable set with NULL originator only allowed for rule_owner/owner_fallback, got source=%q", i, r.Source)
+		if r.AccountableUserID.Valid && !r.UserID.Valid &&
+			r.Source != SourceRuleOwner && r.Source != SourceTriggerOwner && r.Source != SourceOwnerFallback {
+			t.Errorf("result[%d]: accountable set with NULL originator only allowed for trigger_owner/rule_owner/owner_fallback, got source=%q", i, r.Source)
 		}
 	}
 }
@@ -341,6 +342,38 @@ func TestRuleOwner(t *testing.T) {
 	}
 }
 
+func TestTriggerOwner(t *testing.T) {
+	// The divergence case (MUL-4302; Bohan): an autopilot schedule/webhook run has
+	// NO authorizing human (originator NULL) but IS accountable to the member who
+	// created the firing trigger.
+	got := TriggerOwner(human, EvidenceAutopilotRun, issue)
+	if got.Source != SourceTriggerOwner {
+		t.Fatalf("source = %q, want trigger_owner", got.Source)
+	}
+	if !got.Source.Precise() {
+		t.Errorf("trigger_owner must be a precise source")
+	}
+	if got.UserID.Valid {
+		t.Errorf("trigger_owner must NOT set originator (authorization stays NULL), got %v", got.UserID)
+	}
+	if got.AccountableUserID != human {
+		t.Errorf("accountable should be the trigger creator, got %v", got.AccountableUserID)
+	}
+	if got.EvidenceKind != EvidenceAutopilotRun || got.EvidenceRefID != issue {
+		t.Errorf("evidence should be carried through")
+	}
+
+	// No creator (unrecoverable) must not fabricate a human — degrades to
+	// unattributed so the caller can fall back to rule_owner.
+	none := TriggerOwner(pgtype.UUID{}, EvidenceAutopilotRun, issue)
+	if none.Source != SourceUnattributed {
+		t.Errorf("missing creator must degrade to unattributed, got %q", none.Source)
+	}
+	if none.UserID.Valid || none.AccountableUserID.Valid {
+		t.Errorf("missing creator must carry no human on either side")
+	}
+}
+
 func TestOwnerFallback(t *testing.T) {
 	// Unattributed → owner_fallback: accountable = owner, originator stays NULL,
 	// source is degraded (not precise).
@@ -386,7 +419,7 @@ func TestUnattributed(t *testing.T) {
 }
 
 func TestSourcePrecise(t *testing.T) {
-	precise := []Source{SourceDirectHuman, SourceDelegation, SourceCommentSource, SourceRuleOwner}
+	precise := []Source{SourceDirectHuman, SourceDelegation, SourceCommentSource, SourceTriggerOwner, SourceRuleOwner}
 	degraded := []Source{SourceOwnerFallback, SourceBackfill, SourceUnattributed, Source("")}
 	for _, s := range precise {
 		if !s.Precise() {
diff --git a/server/internal/handler/autopilot.go b/server/internal/handler/autopilot.go
index 852955b01..fff84e28c 100644
--- a/server/internal/handler/autopilot.go
+++ b/server/internal/handler/autopilot.go
@@ -1314,6 +1314,10 @@ func (h *Handler) CreateAutopilotTrigger(w http.ResponseWriter, r *http.Request)
 		NextRunAt:      nextRunAt,
 		Label:          ptrToText(req.Label),
 		WebhookToken:   webhookToken,
+		// Record the creating member so runs this trigger fires attribute to them
+		// (source=trigger_owner, MUL-4302).
+		CreatedByType: pgtype.Text{String: "member", Valid: publisherID.Valid},
+		CreatedByID:   publisherID,
 	})
 	if err != nil {
 		writeError(w, http.StatusInternalServerError, "failed to create trigger")
@@ -1376,6 +1380,10 @@ func (h *Handler) createWebhookTriggerWithMintedToken(
 			WebhookToken: pgtype.Text{String: token, Valid: true},
 			Provider:     pgtype.Text{String: provider, Valid: provider != ""},
 			EventFilters: eventFilters,
+			// Record the creating member so runs this webhook fires attribute to
+			// them (source=trigger_owner, MUL-4302).
+			CreatedByType: pgtype.Text{String: "member", Valid: publisherID.Valid},
+			CreatedByID:   publisherID,
 		})
 		if err != nil {
 			tx.Rollback(ctx)
diff --git a/server/internal/service/attribution_stamp_test.go b/server/internal/service/attribution_stamp_test.go
index 42c18be7c..ceeb6614b 100644
--- a/server/internal/service/attribution_stamp_test.go
+++ b/server/internal/service/attribution_stamp_test.go
@@ -176,6 +176,93 @@ func TestEnqueueTaskForIssueWithHandoffAttributesToActor(t *testing.T) {
 	}
 }
 
+// TestTriggerOwnerAttribution_ScheduleTriggerCreator is the acceptance test for
+// trigger_owner (MUL-4302; Bohan): an autopilot schedule/webhook run is accountable
+// to the member who CREATED the firing trigger, with originator NULL (no human
+// authorized the autonomous fire).
+func TestTriggerOwnerAttribution_ScheduleTriggerCreator(t *testing.T) {
+	pool := newResolveOriginatorPool(t)
+	ctx := context.Background()
+	q := db.New(pool)
+	workspaceID, creatorID, agentID, _ := seedAttributionFixture(t, pool)
+
+	var autopilotID string
+	if err := pool.QueryRow(ctx, `
+		INSERT INTO autopilot (workspace_id, title, assignee_id, execution_mode, created_by_type, created_by_id)
+		VALUES ($1, 'trigger-owner-ap', $2, 'run_only', 'member', $3) RETURNING id`,
+		workspaceID, agentID, creatorID).Scan(&autopilotID); err != nil {
+		t.Fatalf("seed autopilot: %v", err)
+	}
+	t.Cleanup(func() { pool.Exec(context.Background(), `DELETE FROM autopilot WHERE id = $1`, autopilotID) })
+
+	// Schedule trigger created by the member.
+	var triggerID string
+	if err := pool.QueryRow(ctx, `
+		INSERT INTO autopilot_trigger (autopilot_id, kind, enabled, cron_expression, created_by_type, created_by_id)
+		VALUES ($1, 'schedule', true, '0 * * * *', 'member', $2) RETURNING id`,
+		autopilotID, creatorID).Scan(&triggerID); err != nil {
+		t.Fatalf("seed trigger: %v", err)
+	}
+
+	got := triggerOwnerAttribution(ctx, q,
+		util.MustParseUUID(triggerID), util.MustParseUUID(workspaceID), util.MustParseUUID(autopilotID),
+		attribution.EvidenceAutopilotRun, util.MustParseUUID(autopilotID))
+	if got.Source != attribution.SourceTriggerOwner {
+		t.Fatalf("source = %q, want trigger_owner", got.Source)
+	}
+	if got.UserID.Valid {
+		t.Errorf("trigger_owner is audit-only; originator must stay NULL, got %s", util.UUIDToString(got.UserID))
+	}
+	if !got.AccountableUserID.Valid || got.AccountableUserID.Bytes != util.MustParseUUID(creatorID).Bytes {
+		t.Errorf("accountable = %s, want trigger creator %s", util.UUIDToString(got.AccountableUserID), creatorID)
+	}
+}
+
+// TestTriggerOwnerAttribution_LegacyTriggerFallsBackToRuleOwner verifies the
+// backward-compat path Bohan signed off on: a trigger with no recorded creator
+// (created before this migration) degrades to the rule publisher (rule_owner),
+// never fabricating a human.
+func TestTriggerOwnerAttribution_LegacyTriggerFallsBackToRuleOwner(t *testing.T) {
+	pool := newResolveOriginatorPool(t)
+	ctx := context.Background()
+	q := db.New(pool)
+	workspaceID, publisherID, agentID, _ := seedAttributionFixture(t, pool)
+
+	var autopilotID string
+	if err := pool.QueryRow(ctx, `
+		INSERT INTO autopilot (workspace_id, title, assignee_id, execution_mode, created_by_type, created_by_id)
+		VALUES ($1, 'legacy-trigger-ap', $2, 'run_only', 'member', $3) RETURNING id`,
+		workspaceID, agentID, publisherID).Scan(&autopilotID); err != nil {
+		t.Fatalf("seed autopilot: %v", err)
+	}
+	t.Cleanup(func() { pool.Exec(context.Background(), `DELETE FROM autopilot WHERE id = $1`, autopilotID) })
+
+	// Trigger with NO creator recorded (pre-migration style).
+	var triggerID string
+	if err := pool.QueryRow(ctx, `
+		INSERT INTO autopilot_trigger (autopilot_id, kind, enabled, cron_expression)
+		VALUES ($1, 'schedule', true, '0 * * * *') RETURNING id`,
+		autopilotID).Scan(&triggerID); err != nil {
+		t.Fatalf("seed trigger: %v", err)
+	}
+	// Active rule version so the fallback resolves to rule_owner (the publisher).
+	if _, err := pool.Exec(ctx, `
+		INSERT INTO autopilot_rule_version (autopilot_id, workspace_id, published_by_type, published_by_id)
+		VALUES ($1, $2, 'member', $3)`, autopilotID, workspaceID, publisherID); err != nil {
+		t.Fatalf("seed rule version: %v", err)
+	}
+
+	got := triggerOwnerAttribution(ctx, q,
+		util.MustParseUUID(triggerID), util.MustParseUUID(workspaceID), util.MustParseUUID(autopilotID),
+		attribution.EvidenceAutopilotRun, util.MustParseUUID(autopilotID))
+	if got.Source != attribution.SourceRuleOwner {
+		t.Fatalf("source = %q, want rule_owner (legacy trigger falls back)", got.Source)
+	}
+	if !got.AccountableUserID.Valid || got.AccountableUserID.Bytes != util.MustParseUUID(publisherID).Bytes {
+		t.Errorf("accountable = %s, want rule publisher %s", util.UUIDToString(got.AccountableUserID), publisherID)
+	}
+}
+
 // TestEnqueueTaskForIssueAutopilotOriginStampsRuleOwner is the acceptance test for
 // rule_owner (MUL-4302 §3.4): an autopilot-origin issue's run has NO authorizing
 // human (originator_user_id stays NULL) but IS accountable to the publisher of the
diff --git a/server/internal/service/autopilot.go b/server/internal/service/autopilot.go
index 258dd6796..72192b5dc 100644
--- a/server/internal/service/autopilot.go
+++ b/server/internal/service/autopilot.go
@@ -650,16 +650,16 @@ func (s *AutopilotService) dispatchRunOnly(ctx context.Context, ap db.Autopilot,
 	// the triggering member is direct_human and becomes BOTH originator (so the run
 	// carries their authorization context) and accountable (MUL-4302 §4). A
 	// schedule / webhook trigger has no human — originator_user_id stays NULL and
-	// the audit-accountable human is the rule_owner, the publisher of the active
-	// rule version, with rule_version_id recording the snapshot (MUL-4302 §3.4); a
-	// missing version/publisher degrades to unattributed (see ruleOwnerAttribution).
-	// Either way evidence points at the autopilot run and the row is never a
-	// NULL-source bypass.
+	// the audit-accountable human is the member who CREATED the firing trigger —
+	// trigger_owner, resolved from run.TriggerID (MUL-4302; Bohan's refinement) —
+	// degrading to the rule version publisher (rule_owner) when that creator is not
+	// recoverable, then to unattributed. Either way evidence points at the autopilot
+	// run and the row is never a NULL-source bypass.
 	var autopilotAttr attribution.Result
 	if actorUserID.Valid {
 		autopilotAttr = attribution.DirectHumanRun(actorUserID, attribution.EvidenceAutopilotRun, run.ID)
 	} else {
-		autopilotAttr = ruleOwnerAttribution(ctx, s.Queries, ap.WorkspaceID, ap.ID, attribution.EvidenceAutopilotRun, run.ID)
+		autopilotAttr = triggerOwnerAttribution(ctx, s.Queries, run.TriggerID, ap.WorkspaceID, ap.ID, attribution.EvidenceAutopilotRun, run.ID)
 	}
 	// If no precise human resolved (a version-less autopilot), degrade to
 	// owner_fallback (accountable = agent owner), or skip the dispatch when the
diff --git a/server/internal/service/task.go b/server/internal/service/task.go
index 2847e9c8e..e41fe1860 100644
--- a/server/internal/service/task.go
+++ b/server/internal/service/task.go
@@ -380,13 +380,19 @@ func (s *TaskService) attributionForIssueTask(ctx context.Context, issue db.Issu
 	}
 	// Autopilot-origin issues (origin_id is the autopilot id) from a schedule /
 	// webhook trigger: no human authorized the run, so originator stays NULL, but it
-	// is accountable to the publisher of the autopilot's active rule version —
-	// rule_owner (MUL-4302 §3.4). Resolved the same way run_only dispatch resolves
+	// is accountable to the human who CREATED the firing trigger — trigger_owner
+	// (MUL-4302; Bohan's refinement), degrading to the rule publisher when that
+	// creator is not recoverable. Resolved the same way run_only dispatch resolves
 	// it, so both autopilot execution modes attribute identically. (A manual trigger
-	// carries an actor and is already handled above.)
+	// carries an actor and is already handled above.) The issue only stores the
+	// autopilot id, so bridge issue → active run → trigger_id to find the trigger.
 	if s != nil && s.Queries != nil && issue.OriginType.Valid &&
 		issue.OriginType.String == "autopilot" && issue.OriginID.Valid {
-		return ruleOwnerAttribution(ctx, s.Queries, issue.WorkspaceID, issue.OriginID, attribution.EvidenceIssueAssignment, issue.ID)
+		var triggerID pgtype.UUID
+		if run, err := s.Queries.GetAutopilotRunByIssue(ctx, issue.ID); err == nil {
+			triggerID = run.TriggerID
+		}
+		return triggerOwnerAttribution(ctx, s.Queries, triggerID, issue.WorkspaceID, issue.OriginID, attribution.EvidenceIssueAssignment, issue.ID)
 	}
 	facts := attribution.DirectFacts{
 		IssueID:     issue.ID,
@@ -438,6 +444,24 @@ func ruleOwnerAttribution(ctx context.Context, q *db.Queries, workspaceID, autop
 	return attribution.RuleOwner(publisher, ver.ID, evidenceKind, evidenceRefID)
 }
 
+// triggerOwnerAttribution resolves an autopilot schedule/webhook run to the human
+// who CREATED the firing trigger (MUL-4302; Bohan's refinement). triggerID is the
+// autopilot_run's trigger_id. When it resolves to a member-created trigger, the run
+// is trigger_owner-accountable to that member. A trigger with no recorded creator
+// (created before per-trigger creators were captured) or an agent-created trigger
+// degrades to ruleOwnerAttribution (rule publisher, then owner_fallback) — the same
+// coarser behavior autopilots had before this change, so nothing regresses. Never
+// errors: attribution must not fail an enqueue.
+func triggerOwnerAttribution(ctx context.Context, q *db.Queries, triggerID, workspaceID, autopilotID pgtype.UUID, evidenceKind attribution.EvidenceKind, evidenceRefID pgtype.UUID) attribution.Result {
+	if q != nil && triggerID.Valid {
+		if trig, err := q.GetAutopilotTrigger(ctx, triggerID); err == nil &&
+			trig.CreatedByType.Valid && trig.CreatedByType.String == "member" && trig.CreatedByID.Valid {
+			return attribution.TriggerOwner(trig.CreatedByID, evidenceKind, evidenceRefID)
+		}
+	}
+	return ruleOwnerAttribution(ctx, q, workspaceID, autopilotID, evidenceKind, evidenceRefID)
+}
+
 // ErrAttributionFailClosed signals that a run resolved to no precise accountable
 // human and the enqueue is REFUSED rather than started. It covers three cases, all
 // of which mean "we cannot guarantee an accountable human for this run" (MUL-4302
diff --git a/server/migrations/162_autopilot_trigger_creator.down.sql b/server/migrations/162_autopilot_trigger_creator.down.sql
new file mode 100644
index 000000000..ce20209f9
--- /dev/null
+++ b/server/migrations/162_autopilot_trigger_creator.down.sql
@@ -0,0 +1,2 @@
+ALTER TABLE autopilot_trigger DROP COLUMN IF EXISTS created_by_id;
+ALTER TABLE autopilot_trigger DROP COLUMN IF EXISTS created_by_type;
diff --git a/server/migrations/162_autopilot_trigger_creator.up.sql b/server/migrations/162_autopilot_trigger_creator.up.sql
new file mode 100644
index 000000000..8ec99830e
--- /dev/null
+++ b/server/migrations/162_autopilot_trigger_creator.up.sql
@@ -0,0 +1,28 @@
+-- Human Attribution — per-trigger creator (MUL-4302; Bohan's refinement of the
+-- autopilot attribution rule). An autopilot run must be accountable to the human
+-- who created the SPECIFIC trigger that fired it — the member who set up the
+-- schedule, or who registered the webhook — not the publisher of the whole rule
+-- (the previous rule_owner behavior). autopilot_trigger did not record a creator,
+-- so this adds one. The resolver reads it as source=trigger_owner (accountable =
+-- this member, originator NULL because a scheduled/webhook fire carries no human
+-- authorization at fire time — same authz-safe divergence as rule_owner).
+--
+-- Constraints (MUL-4302 §7 + workspace DB rules): NO foreign key, NO cascade
+-- (integrity is app-layer), nullable with no default so the ALTER is a fast
+-- metadata-only change (no table rewrite). NULL means "no creator recorded":
+-- every trigger that predates this migration, which the resolver degrades to the
+-- old rule_owner behavior (then owner_fallback) rather than fabricating a human.
+-- created_by_type is 'member' | 'agent' (mirrors autopilot.created_by_type); only
+-- a 'member' creator becomes the accountable human, an 'agent'-created trigger
+-- degrades to rule_owner like any other agent action.
+ALTER TABLE autopilot_trigger
+    ADD COLUMN created_by_type TEXT NULL;
+
+ALTER TABLE autopilot_trigger
+    ADD COLUMN created_by_id UUID NULL;
+
+COMMENT ON COLUMN autopilot_trigger.created_by_type IS
+    'Actor type that created this trigger: member | agent. Paired with created_by_id. Consumed only for attribution (source=trigger_owner) — never authorization. NULL on pre-migration triggers (MUL-4302).';
+
+COMMENT ON COLUMN autopilot_trigger.created_by_id IS
+    'The member/agent that created this trigger. For a member creator this is the accountable human of runs this trigger fires (source=trigger_owner). No FK, app-layer integrity. NULL on pre-migration triggers, which degrade to rule_owner (MUL-4302).';
diff --git a/server/pkg/db/generated/autopilot.sql.go b/server/pkg/db/generated/autopilot.sql.go
index 29367733d..f0e1f6100 100644
--- a/server/pkg/db/generated/autopilot.sql.go
+++ b/server/pkg/db/generated/autopilot.sql.go
@@ -382,13 +382,15 @@ func (q *Queries) CreateAutopilotTask(ctx context.Context, arg CreateAutopilotTa
 const createAutopilotTrigger = `-- name: CreateAutopilotTrigger :one
 INSERT INTO autopilot_trigger (
     autopilot_id, kind, enabled, cron_expression, timezone,
-    next_run_at, webhook_token, label, provider, event_filters
+    next_run_at, webhook_token, label, provider, event_filters,
+    created_by_type, created_by_id
 ) VALUES (
     $1, $2, $3, $4, $5,
     $6, $7, $8,
     COALESCE($9::text, 'generic'),
-    $10
-) RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters
+    $10,
+    $11, $12
+) RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters, created_by_type, created_by_id
 `
 
 type CreateAutopilotTriggerParams struct {
@@ -402,6 +404,8 @@ type CreateAutopilotTriggerParams struct {
 	Label          pgtype.Text        `json:"label"`
 	Provider       pgtype.Text        `json:"provider"`
 	EventFilters   []byte             `json:"event_filters"`
+	CreatedByType  pgtype.Text        `json:"created_by_type"`
+	CreatedByID    pgtype.UUID        `json:"created_by_id"`
 }
 
 func (q *Queries) CreateAutopilotTrigger(ctx context.Context, arg CreateAutopilotTriggerParams) (AutopilotTrigger, error) {
@@ -416,6 +420,8 @@ func (q *Queries) CreateAutopilotTrigger(ctx context.Context, arg CreateAutopilo
 		arg.Label,
 		arg.Provider,
 		arg.EventFilters,
+		arg.CreatedByType,
+		arg.CreatedByID,
 	)
 	var i AutopilotTrigger
 	err := row.Scan(
@@ -434,6 +440,8 @@ func (q *Queries) CreateAutopilotTrigger(ctx context.Context, arg CreateAutopilo
 		&i.Provider,
 		&i.SigningSecret,
 		&i.EventFilters,
+		&i.CreatedByType,
+		&i.CreatedByID,
 	)
 	return i, err
 }
@@ -695,7 +703,7 @@ func (q *Queries) GetAutopilotRunByTriggerAndPlanned(ctx context.Context, arg Ge
 }
 
 const getAutopilotTrigger = `-- name: GetAutopilotTrigger :one
-SELECT id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters FROM autopilot_trigger
+SELECT id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters, created_by_type, created_by_id FROM autopilot_trigger
 WHERE id = $1
 `
 
@@ -718,12 +726,14 @@ func (q *Queries) GetAutopilotTrigger(ctx context.Context, id pgtype.UUID) (Auto
 		&i.Provider,
 		&i.SigningSecret,
 		&i.EventFilters,
+		&i.CreatedByType,
+		&i.CreatedByID,
 	)
 	return i, err
 }
 
 const getWebhookTriggerByToken = `-- name: GetWebhookTriggerByToken :one
-SELECT t.id, t.autopilot_id, t.kind, t.enabled, t.cron_expression, t.timezone, t.next_run_at, t.webhook_token, t.label, t.last_fired_at, t.created_at, t.updated_at, t.provider, t.signing_secret, t.event_filters, a.workspace_id AS autopilot_workspace_id
+SELECT t.id, t.autopilot_id, t.kind, t.enabled, t.cron_expression, t.timezone, t.next_run_at, t.webhook_token, t.label, t.last_fired_at, t.created_at, t.updated_at, t.provider, t.signing_secret, t.event_filters, t.created_by_type, t.created_by_id, a.workspace_id AS autopilot_workspace_id
 FROM autopilot_trigger t
 JOIN autopilot a ON a.id = t.autopilot_id
 WHERE t.kind = 'webhook'
@@ -746,6 +756,8 @@ type GetWebhookTriggerByTokenRow struct {
 	Provider             string             `json:"provider"`
 	SigningSecret        pgtype.Text        `json:"signing_secret"`
 	EventFilters         []byte             `json:"event_filters"`
+	CreatedByType        pgtype.Text        `json:"created_by_type"`
+	CreatedByID          pgtype.UUID        `json:"created_by_id"`
 	AutopilotWorkspaceID pgtype.UUID        `json:"autopilot_workspace_id"`
 }
 
@@ -773,6 +785,8 @@ func (q *Queries) GetWebhookTriggerByToken(ctx context.Context, webhookToken pgt
 		&i.Provider,
 		&i.SigningSecret,
 		&i.EventFilters,
+		&i.CreatedByType,
+		&i.CreatedByID,
 		&i.AutopilotWorkspaceID,
 	)
 	return i, err
@@ -947,7 +961,7 @@ func (q *Queries) ListAutopilotSubscribers(ctx context.Context, autopilotID pgty
 
 const listAutopilotTriggers = `-- name: ListAutopilotTriggers :many
 
-SELECT id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters FROM autopilot_trigger
+SELECT id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters, created_by_type, created_by_id FROM autopilot_trigger
 WHERE autopilot_id = $1
 ORDER BY created_at ASC
 `
@@ -980,6 +994,8 @@ func (q *Queries) ListAutopilotTriggers(ctx context.Context, autopilotID pgtype.
 			&i.Provider,
 			&i.SigningSecret,
 			&i.EventFilters,
+			&i.CreatedByType,
+			&i.CreatedByID,
 		); err != nil {
 			return nil, err
 		}
@@ -1183,7 +1199,7 @@ SET webhook_token = $2,
     updated_at = now()
 WHERE id = $1
   AND kind = 'webhook'
-RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters
+RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters, created_by_type, created_by_id
 `
 
 type RotateAutopilotTriggerWebhookTokenParams struct {
@@ -1213,6 +1229,8 @@ func (q *Queries) RotateAutopilotTriggerWebhookToken(ctx context.Context, arg Ro
 		&i.Provider,
 		&i.SigningSecret,
 		&i.EventFilters,
+		&i.CreatedByType,
+		&i.CreatedByID,
 	)
 	return i, err
 }
@@ -1305,7 +1323,7 @@ SET signing_secret = $2,
     updated_at = now()
 WHERE id = $1
   AND kind = 'webhook'
-RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters
+RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters, created_by_type, created_by_id
 `
 
 type SetAutopilotTriggerSigningSecretParams struct {
@@ -1337,6 +1355,8 @@ func (q *Queries) SetAutopilotTriggerSigningSecret(ctx context.Context, arg SetA
 		&i.Provider,
 		&i.SigningSecret,
 		&i.EventFilters,
+		&i.CreatedByType,
+		&i.CreatedByID,
 	)
 	return i, err
 }
@@ -1346,7 +1366,7 @@ UPDATE autopilot_trigger
 SET webhook_token = $2,
     updated_at = now()
 WHERE id = $1
-RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters
+RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters, created_by_type, created_by_id
 `
 
 type SetAutopilotTriggerWebhookTokenParams struct {
@@ -1378,6 +1398,8 @@ func (q *Queries) SetAutopilotTriggerWebhookToken(ctx context.Context, arg SetAu
 		&i.Provider,
 		&i.SigningSecret,
 		&i.EventFilters,
+		&i.CreatedByType,
+		&i.CreatedByID,
 	)
 	return i, err
 }
@@ -1732,7 +1754,7 @@ UPDATE autopilot_trigger SET
     event_filters = COALESCE($7, event_filters),
     updated_at = now()
 WHERE id = $1
-RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters
+RETURNING id, autopilot_id, kind, enabled, cron_expression, timezone, next_run_at, webhook_token, label, last_fired_at, created_at, updated_at, provider, signing_secret, event_filters, created_by_type, created_by_id
 `
 
 type UpdateAutopilotTriggerParams struct {
@@ -1772,6 +1794,8 @@ func (q *Queries) UpdateAutopilotTrigger(ctx context.Context, arg UpdateAutopilo
 		&i.Provider,
 		&i.SigningSecret,
 		&i.EventFilters,
+		&i.CreatedByType,
+		&i.CreatedByID,
 	)
 	return i, err
 }
diff --git a/server/pkg/db/generated/models.go b/server/pkg/db/generated/models.go
index 792f7adfb..b76a745ed 100644
--- a/server/pkg/db/generated/models.go
+++ b/server/pkg/db/generated/models.go
@@ -238,6 +238,10 @@ type AutopilotTrigger struct {
 	Provider       string             `json:"provider"`
 	SigningSecret  pgtype.Text        `json:"signing_secret"`
 	EventFilters   []byte             `json:"event_filters"`
+	// Actor type that created this trigger: member | agent. Paired with created_by_id. Consumed only for attribution (source=trigger_owner) — never authorization. NULL on pre-migration triggers (MUL-4302).
+	CreatedByType pgtype.Text `json:"created_by_type"`
+	// The member/agent that created this trigger. For a member creator this is the accountable human of runs this trigger fires (source=trigger_owner). No FK, app-layer integrity. NULL on pre-migration triggers, which degrade to rule_owner (MUL-4302).
+	CreatedByID pgtype.UUID `json:"created_by_id"`
 }
 
 type ChannelBindingToken struct {
diff --git a/server/pkg/db/queries/autopilot.sql b/server/pkg/db/queries/autopilot.sql
index 8497504e3..1fd0edcca 100644
--- a/server/pkg/db/queries/autopilot.sql
+++ b/server/pkg/db/queries/autopilot.sql
@@ -122,12 +122,14 @@ WHERE id = $1;
 -- name: CreateAutopilotTrigger :one
 INSERT INTO autopilot_trigger (
     autopilot_id, kind, enabled, cron_expression, timezone,
-    next_run_at, webhook_token, label, provider, event_filters
+    next_run_at, webhook_token, label, provider, event_filters,
+    created_by_type, created_by_id
 ) VALUES (
     $1, $2, $3, sqlc.narg('cron_expression'), sqlc.narg('timezone'),
     sqlc.narg('next_run_at'), sqlc.narg('webhook_token'), sqlc.narg('label'),
     COALESCE(sqlc.narg('provider')::text, 'generic'),
-    sqlc.narg('event_filters')
+    sqlc.narg('event_filters'),
+    sqlc.narg('created_by_type'), sqlc.narg('created_by_id')
 ) RETURNING *;
 
 -- name: UpdateAutopilotTrigger :one