diff --git a/apps/code/src/renderer/features/inbox/hooks/useSignalSourceManager.ts b/apps/code/src/renderer/features/inbox/hooks/useSignalSourceManager.ts
index 7d9f0a642..c1a107aec 100644
--- a/apps/code/src/renderer/features/inbox/hooks/useSignalSourceManager.ts
+++ b/apps/code/src/renderer/features/inbox/hooks/useSignalSourceManager.ts
@@ -9,8 +9,10 @@ import type {
   SignalReportPriority,
   SignalUserAutonomyConfig,
 } from "@shared/types";
+import { ANALYTICS_EVENTS } from "@shared/types/analytics";
 import { getCloudUrlFromRegion } from "@shared/utils/urls";
 import { useQueryClient } from "@tanstack/react-query";
+import { track } from "@utils/analytics";
 import { useCallback, useMemo, useRef, useState } from "react";
 import { toast } from "sonner";
 import { useEvaluations } from "./useEvaluations";
@@ -330,6 +332,9 @@ export function useSignalSourceManager() {
 
       const label = SOURCE_LABELS[product];
 
+      const hadExistingConfig = configs?.some(
+        (c) => c.source_product === product,
+      );
       try {
         if (product === "error_tracking") {
           for (const sourceType of ERROR_TRACKING_SOURCE_TYPES) {
@@ -371,6 +376,14 @@ export function useSignalSourceManager() {
           }
         }
 
+        if (enabled) {
+          track(ANALYTICS_EVENTS.SIGNAL_SOURCE_CONNECTED, {
+            source_product: product,
+            is_first_connection: !hadExistingConfig,
+            via_setup_wizard: false,
+          });
+        }
+
         await invalidateAfterToggle();
       } catch (error: unknown) {
         const message =
@@ -415,6 +428,11 @@ export function useSignalSourceManager() {
             enabled: true,
           });
         }
+        track(ANALYTICS_EVENTS.SIGNAL_SOURCE_CONNECTED, {
+          source_product: completedSource,
+          is_first_connection: !existing,
+          via_setup_wizard: true,
+        });
       } catch {
         toast.error(
           "Data source connected, but failed to enable signal source. Try toggling it on.",
diff --git a/apps/code/src/shared/types/analytics.ts b/apps/code/src/shared/types/analytics.ts
index 61f56c0cf..268e00d24 100644
--- a/apps/code/src/shared/types/analytics.ts
+++ b/apps/code/src/shared/types/analytics.ts
@@ -562,6 +562,22 @@ export interface InboxReportActionProperties {
   question_text?: string;
 }
 
+export interface SignalSourceConnectedProperties {
+  source_product:
+    | "session_replay"
+    | "error_tracking"
+    | "github"
+    | "linear"
+    | "zendesk"
+    | "conversations"
+    | "pganalyze"
+    | "llm_analytics";
+  /** True when this is a brand-new createSignalSourceConfig, false for re-enable of an existing config. */
+  is_first_connection: boolean;
+  /** True when the connection went through the DataSourceSetup wizard (warehouse OAuth path). */
+  via_setup_wizard: boolean;
+}
+
 // Subscription / billing events
 export interface SubscriptionStartedProperties {
   plan_key: string;
@@ -681,6 +697,7 @@ export const ANALYTICS_EVENTS = {
   INBOX_REPORT_CLOSED: "Inbox report closed",
   INBOX_REPORT_ACTION: "Inbox report action",
   INBOX_REPORT_SCROLLED: "Inbox report scrolled",
+  SIGNAL_SOURCE_CONNECTED: "Signal source connected",
 
   // Prompt history events
   PROMPT_HISTORY_OPENED: "Prompt history opened",
@@ -793,6 +810,7 @@ export type EventPropertyMap = {
   [ANALYTICS_EVENTS.INBOX_REPORT_CLOSED]: InboxReportClosedProperties;
   [ANALYTICS_EVENTS.INBOX_REPORT_ACTION]: InboxReportActionProperties;
   [ANALYTICS_EVENTS.INBOX_REPORT_SCROLLED]: InboxReportScrolledProperties;
+  [ANALYTICS_EVENTS.SIGNAL_SOURCE_CONNECTED]: SignalSourceConnectedProperties;
 
   // Prompt history events
   [ANALYTICS_EVENTS.PROMPT_HISTORY_OPENED]: PromptHistoryOpenedProperties;