diff --git a/apps/mobile/src/features/inbox/components/FilterSheet.tsx b/apps/mobile/src/features/inbox/components/FilterSheet.tsx
index 83163b2547..5ad7d2cce3 100644
--- a/apps/mobile/src/features/inbox/components/FilterSheet.tsx
+++ b/apps/mobile/src/features/inbox/components/FilterSheet.tsx
@@ -77,6 +77,7 @@ const SOURCE_PRODUCT_OPTIONS: { value: SourceProduct; label: string }[] = [
   { value: "zendesk", label: "Zendesk" },
   { value: "conversations", label: "Conversations" },
   { value: "signals_scout", label: "Scout" },
+  { value: "health_checks", label: "Health checks" },
 ];
 
 function SectionHeader({ title }: { title: string }) {
diff --git a/apps/mobile/src/features/inbox/components/SignalCard.tsx b/apps/mobile/src/features/inbox/components/SignalCard.tsx
index a32ff002d1..0bf1a595f8 100644
--- a/apps/mobile/src/features/inbox/components/SignalCard.tsx
+++ b/apps/mobile/src/features/inbox/components/SignalCard.tsx
@@ -8,6 +8,7 @@ import {
   CheckCircle,
   Code,
   Compass,
+  FirstAid,
   GithubLogo,
   LinkSimple,
   Question,
@@ -53,6 +54,8 @@ function sourceLine(signal: Signal): string {
   )
     return "Scout · Cross-source issue";
   if (source_product === "signals_scout") return "Scout";
+  if (source_product === "health_checks" && source_type === "health_issue")
+    return "Health checks · Issue";
   const product = source_product.replace(/_/g, " ");
   const type = source_type.replace(/_/g, " ");
   return `${product} · ${type}`;
@@ -82,6 +85,8 @@ function SourceIcon({
       return <LinkSimple size={size} color={color} />;
     case "signals_scout":
       return <Compass size={size} color={color} />;
+    case "health_checks":
+      return <FirstAid size={size} color={color} />;
     default:
       return <WarningCircle size={size} color={color} />;
   }
diff --git a/apps/mobile/src/features/inbox/stores/inboxFilterStore.ts b/apps/mobile/src/features/inbox/stores/inboxFilterStore.ts
index ab97b29525..acad97721c 100644
--- a/apps/mobile/src/features/inbox/stores/inboxFilterStore.ts
+++ b/apps/mobile/src/features/inbox/stores/inboxFilterStore.ts
@@ -15,14 +15,15 @@ type SortField = Extract<
 type SortDirection = "asc" | "desc";
 
 export type SourceProduct =
-  | "session_replay"
+  | "conversations"
   | "error_tracking"
-  | "llm_analytics"
   | "github"
+  | "health_checks"
   | "linear"
-  | "zendesk"
-  | "conversations"
-  | "signals_scout";
+  | "llm_analytics"
+  | "session_replay"
+  | "signals_scout"
+  | "zendesk";
 
 export const DEFAULT_STATUS_FILTER: SignalReportStatus[] = [
   "ready",
diff --git a/packages/api-client/src/posthog-client.ts b/packages/api-client/src/posthog-client.ts
index 8a90ff2861..37a283636d 100644
--- a/packages/api-client/src/posthog-client.ts
+++ b/packages/api-client/src/posthog-client.ts
@@ -7,6 +7,8 @@ import type {
   CloudRunSource,
   ExecutionMode,
   PrAuthorshipMode,
+  SourceProduct,
+  SourceType,
   StoredLogEntry,
   TaskRunArtifactMetadata,
 } from "@posthog/shared";
@@ -244,59 +246,8 @@ export interface LlmSkillFileInput {
 
 export interface SignalSourceConfig {
   id: string;
-  source_product:
-    | "session_replay"
-    | "llm_analytics"
-    | "github"
-    | "linear"
-    | "jira"
-    | "zendesk"
-    | "conversations"
-    | "error_tracking"
-    | "pganalyze"
-    | "signals_scout"
-    | "freshdesk"
-    | "freshservice"
-    | "front"
-    | "gorgias"
-    | "kustomer"
-    | "dixa"
-    | "plain"
-    | "gitlab"
-    | "gitea"
-    | "shortcut"
-    | "sentry"
-    | "rollbar"
-    | "bugsnag"
-    | "honeybadger"
-    | "raygun"
-    | "snyk"
-    | "sonarqube"
-    | "semgrep"
-    | "rapid7_insightvm"
-    | "featurebase"
-    | "frill"
-    | "aha"
-    | "uservoice"
-    | "productboard"
-    | "canny"
-    | "asknicely"
-    | "retently"
-    | "appfigures"
-    | "appfollow"
-    | "judgeme_reviews";
-  source_type:
-    | "session_analysis_cluster"
-    | "evaluation"
-    | "issue"
-    | "ticket"
-    | "issue_created"
-    | "issue_reopened"
-    | "issue_spiking"
-    | "cross_source_issue"
-    | "scanner_finding"
-    | "feedback"
-    | "review";
+  source_product: SourceProduct;
+  source_type: SourceType;
   enabled: boolean;
   config: Record<string, unknown>;
   created_at: string;
diff --git a/packages/core/src/inbox/signalSourceService.test.ts b/packages/core/src/inbox/signalSourceService.test.ts
index c5e4e7bb58..1d7c0c9d87 100644
--- a/packages/core/src/inbox/signalSourceService.test.ts
+++ b/packages/core/src/inbox/signalSourceService.test.ts
@@ -60,6 +60,13 @@ describe("computeSourceValues", () => {
     const values = computeSourceValues([config("github", "issue", true)]);
     expect(values.github).toBe(true);
   });
+
+  it("enables health_checks when its config is enabled", () => {
+    const values = computeSourceValues([
+      config("health_checks", "health_issue", true),
+    ]);
+    expect(values.health_checks).toBe(true);
+  });
 });
 
 describe("deriveSourceStates", () => {
@@ -106,6 +113,17 @@ describe("SignalSourceService.toggleSource", () => {
     expect(client.createSignalSourceConfig).toHaveBeenCalledTimes(1);
   });
 
+  it("creates a health_checks config with the health_issue source type", async () => {
+    const client = fakeClient();
+    const service = new SignalSourceService();
+    await service.toggleSource(client, 1, "health_checks", true, [], []);
+    expect(client.createSignalSourceConfig).toHaveBeenCalledWith(1, {
+      source_product: "health_checks",
+      source_type: "health_issue",
+      enabled: true,
+    });
+  });
+
   it("ensures the issues table syncs with full_refresh for github before enabling", async () => {
     const client = fakeClient();
     const service = new SignalSourceService();
diff --git a/packages/core/src/inbox/signalSourceService.ts b/packages/core/src/inbox/signalSourceService.ts
index b13abdead3..92fb48ce63 100644
--- a/packages/core/src/inbox/signalSourceService.ts
+++ b/packages/core/src/inbox/signalSourceService.ts
@@ -34,8 +34,9 @@ type SourceType = SignalSourceConfig["source_type"];
 // Non-warehouse toggles are hard-wired; warehouse sources are derived from the shared
 // EXTERNAL_INBOX_SOURCES registry (kept in sync with the UI hook).
 const SOURCE_TYPE_MAP: Partial<Record<SignalSourceProduct, SourceType>> = {
-  session_replay: "session_analysis_cluster",
   conversations: "ticket",
+  health_checks: "health_issue",
+  session_replay: "session_analysis_cluster",
   ...Object.fromEntries(
     EXTERNAL_INBOX_SOURCES.map((s) => [s.product, s.recordKind]),
   ),
@@ -62,10 +63,11 @@ const DATA_WAREHOUSE_SOURCES: Record<
 );
 
 const ALL_SOURCE_PRODUCTS: SignalSourceProduct[] = [
-  "session_replay",
-  "error_tracking",
   "conversations",
-  ...EXTERNAL_INBOX_SOURCES.map((s) => s.product as SignalSourceProduct),
+  "error_tracking",
+  "health_checks",
+  "session_replay",
+  ...EXTERNAL_INBOX_SOURCES.map((s) => s.product),
 ];
 
 function isWarehouseSource(product: SignalSourceProduct): boolean {
diff --git a/packages/shared/src/analytics-events.ts b/packages/shared/src/analytics-events.ts
index 20ddd33cae..ff8a96421e 100644
--- a/packages/shared/src/analytics-events.ts
+++ b/packages/shared/src/analytics-events.ts
@@ -1,6 +1,7 @@
 // Analytics event types and properties
 
 import type { Adapter } from "./adapter";
+import type { SourceProduct } from "./inbox-types";
 
 export interface PromptHistoryOpenedProperties {
   entry_count: number;
@@ -793,47 +794,7 @@ export interface ScoutActionProperties {
 }
 
 export interface SignalSourceConnectedProperties {
-  source_product:
-    | "session_replay"
-    | "error_tracking"
-    | "signals_scout"
-    | "github"
-    | "linear"
-    | "jira"
-    | "zendesk"
-    | "conversations"
-    | "pganalyze"
-    | "llm_analytics"
-    | "freshdesk"
-    | "freshservice"
-    | "front"
-    | "gorgias"
-    | "kustomer"
-    | "dixa"
-    | "plain"
-    | "gitlab"
-    | "gitea"
-    | "shortcut"
-    | "sentry"
-    | "rollbar"
-    | "bugsnag"
-    | "honeybadger"
-    | "raygun"
-    | "snyk"
-    | "sonarqube"
-    | "semgrep"
-    | "rapid7_insightvm"
-    | "featurebase"
-    | "frill"
-    | "aha"
-    | "uservoice"
-    | "productboard"
-    | "canny"
-    | "asknicely"
-    | "retently"
-    | "appfigures"
-    | "appfollow"
-    | "judgeme_reviews";
+  source_product: SourceProduct;
   /** 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). */
diff --git a/packages/shared/src/inbox-types.ts b/packages/shared/src/inbox-types.ts
index c590219b0d..7a6aae7ef9 100644
--- a/packages/shared/src/inbox-types.ts
+++ b/packages/shared/src/inbox-types.ts
@@ -5,94 +5,6 @@ export interface AvailableSuggestedReviewer {
   github_login: string;
 }
 
-export type SourceProduct =
-  | "session_replay"
-  | "error_tracking"
-  | "llm_analytics"
-  | "github"
-  | "linear"
-  | "jira"
-  | "zendesk"
-  | "conversations"
-  | "pganalyze"
-  | "signals_scout"
-  // Warehouse-backed self-driving inbox sources (see EXTERNAL_INBOX_SOURCES).
-  | "freshdesk"
-  | "freshservice"
-  | "front"
-  | "gorgias"
-  | "kustomer"
-  | "dixa"
-  | "plain"
-  | "gitlab"
-  | "gitea"
-  | "shortcut"
-  | "sentry"
-  | "rollbar"
-  | "bugsnag"
-  | "honeybadger"
-  | "raygun"
-  | "snyk"
-  | "sonarqube"
-  | "semgrep"
-  | "rapid7_insightvm"
-  | "featurebase"
-  | "frill"
-  | "aha"
-  | "uservoice"
-  | "productboard"
-  | "canny"
-  | "asknicely"
-  | "retently"
-  | "appfigures"
-  | "appfollow"
-  | "judgeme_reviews";
-
-/**
- * Products that render as a toggle in the Self-driving sources modal: the three PostHog-data
- * inputs plus every warehouse source in EXTERNAL_INBOX_SOURCES. Excludes non-toggle products
- * (`llm_analytics`, `signals_scout`) that appear only as signal origins.
- */
-export type ToggleableSourceProduct =
-  | "session_replay"
-  | "error_tracking"
-  | "conversations"
-  | "github"
-  | "linear"
-  | "jira"
-  | "gitlab"
-  | "gitea"
-  | "shortcut"
-  | "sentry"
-  | "rollbar"
-  | "bugsnag"
-  | "honeybadger"
-  | "raygun"
-  | "zendesk"
-  | "freshdesk"
-  | "freshservice"
-  | "front"
-  | "gorgias"
-  | "kustomer"
-  | "dixa"
-  | "plain"
-  | "pganalyze"
-  | "snyk"
-  | "sonarqube"
-  | "semgrep"
-  | "rapid7_insightvm"
-  | "featurebase"
-  | "frill"
-  | "aha"
-  | "uservoice"
-  | "productboard"
-  | "canny"
-  | "asknicely"
-  | "retently"
-  | "appfigures"
-  | "appfollow"
-  | "judgeme_reviews";
-
 /** Signal record kind (backend `source_type`) for a warehouse-backed inbox source. */
 export type SignalRecordKind =
   | "issue"
@@ -103,14 +15,18 @@ export type SignalRecordKind =
 
 /**
  * A warehouse data source the Self-driving inbox can watch. This is the single source of
- * truth the toggle grid, setup switch, source-type map, and DWH connection map derive from —
- * adding a warehouse source is one entry here (plus its backend emitter and, if it uses OAuth,
- * a bespoke setup form). `setup: "dynamic"` renders the generic credential form; the three
- * legacy special-cased flows keep their own key.
+ * truth the toggle grid, setup switch, source-type map, DWH connection map, and the
+ * `SourceProduct` union derive from — adding a warehouse source is one entry here (plus its
+ * backend emitter and, if it uses OAuth, a bespoke setup form). `setup: "dynamic"` renders
+ * the generic credential form; the three legacy special-cased flows keep their own key.
  */
 export interface ExternalInboxSource {
-  /** Backend `source_product` (lowercase). */
-  product: SourceProduct;
+  /**
+   * Backend `source_product` (lowercase). Declared as `string` here so the registry can
+   * define the universe: `ExternalInboxSourceProduct` is derived from the literal values
+   * in EXTERNAL_INBOX_SOURCES and feeds the `SourceProduct` union.
+   */
+  product: string;
   /** Display label for the toggle card / filter. */
   label: string;
   /** One-line card description. */
@@ -118,7 +34,7 @@ export interface ExternalInboxSource {
   /** Capitalized DWH `source_type` used to match/create the external data source. */
   dwSourceType: string;
   /** Warehouse table(s) that must be syncing for signals to flow. */
-  requiredTables: string[];
+  requiredTables: readonly string[];
   /** Backend signal `source_type` this source emits. */
   recordKind: SignalRecordKind;
   /** Setup flow: the generic dynamic credential form, or a legacy special case. */
@@ -133,8 +49,18 @@ const FINDING = "Surface new security and code-quality findings";
 const FEEDBACK = "Turn product feedback and feature requests into inputs";
 const REVIEW = "Monitor new app and product reviews";
 
-export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
+/** Registry of warehouse-backed inbox sources, alphabetical within each category. */
+export const EXTERNAL_INBOX_SOURCES = [
   // Issue trackers
+  {
+    product: "gitea",
+    label: "Gitea",
+    description: ISSUE,
+    dwSourceType: "Gitea",
+    requiredTables: ["issues"],
+    recordKind: "issue",
+    setup: "dynamic",
+  },
   {
     product: "github",
     label: "GitHub Issues",
@@ -145,10 +71,10 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
     setup: "github",
   },
   {
-    product: "linear",
-    label: "Linear",
+    product: "gitlab",
+    label: "GitLab",
     description: ISSUE,
-    dwSourceType: "Linear",
+    dwSourceType: "GitLab",
     requiredTables: ["issues"],
     recordKind: "issue",
     setup: "dynamic",
@@ -163,19 +89,10 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
     setup: "dynamic",
   },
   {
-    product: "gitlab",
-    label: "GitLab",
-    description: ISSUE,
-    dwSourceType: "GitLab",
-    requiredTables: ["issues"],
-    recordKind: "issue",
-    setup: "dynamic",
-  },
-  {
-    product: "gitea",
-    label: "Gitea",
+    product: "linear",
+    label: "Linear",
     description: ISSUE,
-    dwSourceType: "Gitea",
+    dwSourceType: "Linear",
     requiredTables: ["issues"],
     recordKind: "issue",
     setup: "dynamic",
@@ -190,24 +107,6 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
     setup: "dynamic",
   },
   // Error tracking
-  {
-    product: "sentry",
-    label: "Sentry",
-    description: ERROR,
-    dwSourceType: "Sentry",
-    requiredTables: ["issues"],
-    recordKind: "issue",
-    setup: "dynamic",
-  },
-  {
-    product: "rollbar",
-    label: "Rollbar",
-    description: ERROR,
-    dwSourceType: "Rollbar",
-    requiredTables: ["items"],
-    recordKind: "issue",
-    setup: "dynamic",
-  },
   {
     product: "bugsnag",
     label: "Bugsnag",
@@ -235,15 +134,33 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
     recordKind: "issue",
     setup: "dynamic",
   },
+  {
+    product: "rollbar",
+    label: "Rollbar",
+    description: ERROR,
+    dwSourceType: "Rollbar",
+    requiredTables: ["items"],
+    recordKind: "issue",
+    setup: "dynamic",
+  },
+  {
+    product: "sentry",
+    label: "Sentry",
+    description: ERROR,
+    dwSourceType: "Sentry",
+    requiredTables: ["issues"],
+    recordKind: "issue",
+    setup: "dynamic",
+  },
   // Support / helpdesk
   {
-    product: "zendesk",
-    label: "Zendesk",
-    description: TICKET,
-    dwSourceType: "Zendesk",
-    requiredTables: ["tickets"],
+    product: "dixa",
+    label: "Dixa",
+    description: CONVERSATION,
+    dwSourceType: "Dixa",
+    requiredTables: ["conversations"],
     recordKind: "ticket",
-    setup: "zendesk",
+    setup: "dynamic",
   },
   {
     product: "freshdesk",
@@ -290,15 +207,6 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
     recordKind: "ticket",
     setup: "dynamic",
   },
-  {
-    product: "dixa",
-    label: "Dixa",
-    description: CONVERSATION,
-    dwSourceType: "Dixa",
-    requiredTables: ["conversations"],
-    recordKind: "ticket",
-    setup: "dynamic",
-  },
   {
     product: "plain",
     label: "Plain",
@@ -308,6 +216,15 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
     recordKind: "ticket",
     setup: "dynamic",
   },
+  {
+    product: "zendesk",
+    label: "Zendesk",
+    description: TICKET,
+    dwSourceType: "Zendesk",
+    requiredTables: ["tickets"],
+    recordKind: "ticket",
+    setup: "zendesk",
+  },
   // Database / infra performance
   {
     product: "pganalyze",
@@ -321,20 +238,11 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
   },
   // Security scanners
   {
-    product: "snyk",
-    label: "Snyk",
-    description: FINDING,
-    dwSourceType: "Snyk",
-    requiredTables: ["issues"],
-    recordKind: "scanner_finding",
-    setup: "dynamic",
-  },
-  {
-    product: "sonarqube",
-    label: "SonarQube",
+    product: "rapid7_insightvm",
+    label: "Rapid7 InsightVM",
     description: FINDING,
-    dwSourceType: "Sonarqube",
-    requiredTables: ["issues"],
+    dwSourceType: "Rapid7Insightvm",
+    requiredTables: ["vulnerabilities"],
     recordKind: "scanner_finding",
     setup: "dynamic",
   },
@@ -348,75 +256,75 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
     setup: "dynamic",
   },
   {
-    product: "rapid7_insightvm",
-    label: "Rapid7 InsightVM",
+    product: "snyk",
+    label: "Snyk",
     description: FINDING,
-    dwSourceType: "Rapid7Insightvm",
-    requiredTables: ["vulnerabilities"],
+    dwSourceType: "Snyk",
+    requiredTables: ["issues"],
     recordKind: "scanner_finding",
     setup: "dynamic",
   },
-  // Product feedback / feature requests
   {
-    product: "featurebase",
-    label: "Featurebase",
-    description: FEEDBACK,
-    dwSourceType: "Featurebase",
-    requiredTables: ["posts"],
-    recordKind: "feedback",
+    product: "sonarqube",
+    label: "SonarQube",
+    description: FINDING,
+    dwSourceType: "Sonarqube",
+    requiredTables: ["issues"],
+    recordKind: "scanner_finding",
     setup: "dynamic",
   },
+  // Product feedback / feature requests
   {
-    product: "frill",
-    label: "Frill",
+    product: "aha",
+    label: "Aha",
     description: FEEDBACK,
-    dwSourceType: "Frill",
+    dwSourceType: "Aha",
     requiredTables: ["ideas"],
     recordKind: "feedback",
     setup: "dynamic",
   },
   {
-    product: "aha",
-    label: "Aha",
+    product: "asknicely",
+    label: "AskNicely",
     description: FEEDBACK,
-    dwSourceType: "Aha",
-    requiredTables: ["ideas"],
+    dwSourceType: "Asknicely",
+    requiredTables: ["responses"],
     recordKind: "feedback",
     setup: "dynamic",
   },
   {
-    product: "uservoice",
-    label: "UserVoice",
+    product: "canny",
+    label: "Canny",
     description: FEEDBACK,
-    dwSourceType: "Uservoice",
-    requiredTables: ["suggestions"],
+    dwSourceType: "Canny",
+    requiredTables: ["posts"],
     recordKind: "feedback",
     setup: "dynamic",
   },
   {
-    product: "productboard",
-    label: "Productboard",
+    product: "featurebase",
+    label: "Featurebase",
     description: FEEDBACK,
-    dwSourceType: "Productboard",
-    requiredTables: ["notes"],
+    dwSourceType: "Featurebase",
+    requiredTables: ["posts"],
     recordKind: "feedback",
     setup: "dynamic",
   },
   {
-    product: "canny",
-    label: "Canny",
+    product: "frill",
+    label: "Frill",
     description: FEEDBACK,
-    dwSourceType: "Canny",
-    requiredTables: ["posts"],
+    dwSourceType: "Frill",
+    requiredTables: ["ideas"],
     recordKind: "feedback",
     setup: "dynamic",
   },
   {
-    product: "asknicely",
-    label: "AskNicely",
+    product: "productboard",
+    label: "Productboard",
     description: FEEDBACK,
-    dwSourceType: "Asknicely",
-    requiredTables: ["responses"],
+    dwSourceType: "Productboard",
+    requiredTables: ["notes"],
     recordKind: "feedback",
     setup: "dynamic",
   },
@@ -429,6 +337,15 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
     recordKind: "feedback",
     setup: "dynamic",
   },
+  {
+    product: "uservoice",
+    label: "UserVoice",
+    description: FEEDBACK,
+    dwSourceType: "Uservoice",
+    requiredTables: ["suggestions"],
+    recordKind: "feedback",
+    setup: "dynamic",
+  },
   // Reviews
   {
     product: "appfigures",
@@ -457,7 +374,47 @@ export const EXTERNAL_INBOX_SOURCES: ExternalInboxSource[] = [
     recordKind: "review",
     setup: "dynamic",
   },
-];
+] as const satisfies readonly ExternalInboxSource[];
+
+/** Warehouse-backed source products, derived from the registry above. */
+export type ExternalInboxSourceProduct =
+  (typeof EXTERNAL_INBOX_SOURCES)[number]["product"];
+
+/**
+ * Every backend `source_product`: the PostHog-native products (alphabetical) plus every
+ * warehouse source in EXTERNAL_INBOX_SOURCES.
+ */
+export type SourceProduct =
+  | "conversations"
+  | "error_tracking"
+  | "health_checks"
+  | "llm_analytics"
+  | "session_replay"
+  | "signals_scout"
+  | ExternalInboxSourceProduct;
+
+/**
+ * Products that render as a toggle in the Self-driving sources modal. Excludes non-toggle
+ * products (`llm_analytics`, `signals_scout`) that appear only as signal origins.
+ */
+export type ToggleableSourceProduct = Exclude<
+  SourceProduct,
+  "llm_analytics" | "signals_scout"
+>;
+
+/**
+ * Every backend signal `source_type`: the PostHog-native types (alphabetical) plus the
+ * warehouse record kinds.
+ */
+export type SourceType =
+  | "cross_source_issue"
+  | "evaluation"
+  | "health_issue"
+  | "issue_created"
+  | "issue_reopened"
+  | "issue_spiking"
+  | "session_analysis_cluster"
+  | SignalRecordKind;
 
 /** Issue-like records mutate (status/votes change), so their table needs full-refresh sync. */
 export function sourceNeedsFullRefresh(recordKind: SignalRecordKind): boolean {
diff --git a/packages/shared/src/index.ts b/packages/shared/src/index.ts
index e76f88cd53..a67e774369 100644
--- a/packages/shared/src/index.ts
+++ b/packages/shared/src/index.ts
@@ -148,8 +148,10 @@ export { buildDiscussReportPrompt } from "./inbox-prompts";
 export type {
   AvailableSuggestedReviewer,
   ExternalInboxSource,
+  ExternalInboxSourceProduct,
   SignalRecordKind,
   SourceProduct,
+  SourceType,
   ToggleableSourceProduct,
 } from "./inbox-types";
 export {
diff --git a/packages/ui/src/features/inbox/components/DataSourceSetup.tsx b/packages/ui/src/features/inbox/components/DataSourceSetup.tsx
index a9eb7a88b9..0107db0b38 100644
--- a/packages/ui/src/features/inbox/components/DataSourceSetup.tsx
+++ b/packages/ui/src/features/inbox/components/DataSourceSetup.tsx
@@ -22,7 +22,7 @@ import { useCallback, useEffect, useState } from "react";
 /** PostHog DWH: full table replication (non-incremental); API enum value `full_refresh`. */
 const FULL_TABLE_REPLICATION = "full_refresh" as const;
 
-function schemasPayload(tables: string[]) {
+function schemasPayload(tables: readonly string[]) {
   return tables.map((name) => ({
     name,
     should_sync: true,
diff --git a/packages/ui/src/features/inbox/components/SignalSourceToggles.tsx b/packages/ui/src/features/inbox/components/SignalSourceToggles.tsx
index 2ed3e65672..a7d9816c3a 100644
--- a/packages/ui/src/features/inbox/components/SignalSourceToggles.tsx
+++ b/packages/ui/src/features/inbox/components/SignalSourceToggles.tsx
@@ -4,6 +4,7 @@ import {
   BugIcon,
   ChatsIcon,
   CircleNotchIcon,
+  FirstAidIcon,
   PlugIcon,
   VideoIcon,
 } from "@phosphor-icons/react";
@@ -325,6 +326,10 @@ export function SignalSourceToggles({
     (checked: boolean) => onToggle("conversations", checked),
     [onToggle],
   );
+  const toggleHealthChecks = useCallback(
+    (checked: boolean) => onToggle("health_checks", checked),
+    [onToggle],
+  );
 
   return (
     <Flex gap="4">
@@ -345,6 +350,17 @@ export function SignalSourceToggles({
             docsUrl="https://posthog.com/docs/error-tracking"
             docsLabel="Error Tracking"
           />
+          <SignalSourceToggleCard
+            icon={<FirstAidIcon size={20} />}
+            label="Health checks"
+            description="Surface instrumentation problems — missing events, proxy gaps, outdated SDKs"
+            checked={value.health_checks}
+            onCheckedChange={toggleHealthChecks}
+            disabled={disabled}
+            syncStatus={sourceStates?.health_checks?.syncStatus}
+            docsUrl="https://posthog.com/docs/sdk-health"
+            docsLabel="Health checks"
+          />
           <SignalSourceToggleCard
             icon={<ChatsIcon size={20} />}
             label="Support"
@@ -387,7 +403,7 @@ export function SignalSourceToggles({
         </Text>
         <Flex direction="column" gap="3">
           {EXTERNAL_INBOX_SOURCES.map((source) => {
-            const product = source.product as ToggleableSourceProduct;
+            const product = source.product;
             return (
               <ExternalSourceCard
                 key={source.product}
diff --git a/packages/ui/src/features/inbox/components/detail/SignalCard.tsx b/packages/ui/src/features/inbox/components/detail/SignalCard.tsx
index 2fb49ab8a2..755923ce84 100644
--- a/packages/ui/src/features/inbox/components/detail/SignalCard.tsx
+++ b/packages/ui/src/features/inbox/components/detail/SignalCard.tsx
@@ -86,6 +86,9 @@ function signalCardSourceLine(signal: {
   if (source_product === "pganalyze" && source_type === "issue") {
     return "pganalyze · Issue";
   }
+  if (source_product === "health_checks" && source_type === "health_issue") {
+    return "Health checks · Issue";
+  }
   if (
     source_product === "signals_scout" &&
     source_type === "cross_source_issue"
diff --git a/packages/ui/src/features/inbox/components/responderAgentMeta.ts b/packages/ui/src/features/inbox/components/responderAgentMeta.ts
index bddd18fbf5..76844498f8 100644
--- a/packages/ui/src/features/inbox/components/responderAgentMeta.ts
+++ b/packages/ui/src/features/inbox/components/responderAgentMeta.ts
@@ -38,6 +38,15 @@ export const RESPONDER_AGENT_GROUPS: ResponderAgentGroup[] = [
         docsUrl: "https://posthog.com/docs/support",
         docsLabel: "Support",
       },
+      {
+        source: "health_checks",
+        sourceProduct: "health_checks",
+        label: "Health checks",
+        description:
+          "Instrumentation problems — missing events, proxy gaps, outdated SDKs.",
+        docsUrl: "https://posthog.com/docs/sdk-health",
+        docsLabel: "Health checks",
+      },
       {
         source: "session_replay",
         sourceProduct: "session_replay",
diff --git a/packages/ui/src/features/inbox/components/utils/source-product-icons.tsx b/packages/ui/src/features/inbox/components/utils/source-product-icons.tsx
index f918cdab4c..87479d6758 100644
--- a/packages/ui/src/features/inbox/components/utils/source-product-icons.tsx
+++ b/packages/ui/src/features/inbox/components/utils/source-product-icons.tsx
@@ -4,6 +4,7 @@ import {
   BugIcon,
   ChatsIcon,
   CompassIcon,
+  FirstAidIcon,
   GitBranchIcon,
   GithubLogoIcon,
   KanbanIcon,
@@ -107,6 +108,11 @@ export const SOURCE_PRODUCT_META: Partial<
     color: "var(--iris-9)",
     label: "Scout",
   },
+  health_checks: {
+    Icon: FirstAidIcon,
+    color: "var(--crimson-9)",
+    label: "Health checks",
+  },
   // Warehouse-backed inbox sources
   freshdesk: {
     Icon: LifebuoyIcon,
diff --git a/packages/ui/src/features/inbox/filterOptions.tsx b/packages/ui/src/features/inbox/filterOptions.tsx
index 8d5e768729..2a643e195f 100644
--- a/packages/ui/src/features/inbox/filterOptions.tsx
+++ b/packages/ui/src/features/inbox/filterOptions.tsx
@@ -4,6 +4,7 @@ import {
   CalendarPlus,
   Clock,
   CompassIcon,
+  FirstAidIcon,
   LifebuoyIcon,
   ListNumbers,
   PlugIcon,
@@ -96,6 +97,11 @@ export const INBOX_SOURCE_OPTIONS: {
     icon: <LifebuoyIcon size={14} />,
   },
   { value: "signals_scout", label: "Scouts", icon: <CompassIcon size={14} /> },
+  {
+    value: "health_checks",
+    label: "Health checks",
+    icon: <FirstAidIcon size={14} />,
+  },
   // Warehouse-backed sources, derived from the shared registry.
   ...EXTERNAL_INBOX_SOURCES.map((source) => {
     const meta = getSourceProductMeta(source.product);
diff --git a/packages/ui/src/features/inbox/hooks/useSignalSourceToggles.ts b/packages/ui/src/features/inbox/hooks/useSignalSourceToggles.ts
index ef23cac047..f47c0d2177 100644
--- a/packages/ui/src/features/inbox/hooks/useSignalSourceToggles.ts
+++ b/packages/ui/src/features/inbox/hooks/useSignalSourceToggles.ts
@@ -21,8 +21,9 @@ type SourceKey = keyof SignalSourceValues;
 // Non-warehouse toggles are hard-wired; every warehouse source is derived from the shared
 // EXTERNAL_INBOX_SOURCES registry so adding a source is a one-line change there.
 const SOURCE_TYPE_MAP: Partial<Record<SourceKey, SourceType>> = {
-  session_replay: "session_analysis_cluster",
   conversations: "ticket",
+  health_checks: "health_issue",
+  session_replay: "session_analysis_cluster",
   ...Object.fromEntries(
     EXTERNAL_INBOX_SOURCES.map((s) => [s.product, s.recordKind]),
   ),
@@ -35,9 +36,10 @@ const ERROR_TRACKING_SOURCE_TYPES: SourceType[] = [
 ];
 
 const SOURCE_LABELS: Partial<Record<SourceKey, string>> = {
-  session_replay: "Session replay",
-  error_tracking: "Error tracking",
   conversations: "PostHog Support",
+  error_tracking: "Error tracking",
+  health_checks: "Health checks",
+  session_replay: "Session replay",
   ...Object.fromEntries(
     EXTERNAL_INBOX_SOURCES.map((s) => [s.product, s.label]),
   ),
@@ -58,10 +60,11 @@ const DATA_WAREHOUSE_SOURCES: Record<
 );
 
 const ALL_SOURCE_PRODUCTS: SourceKey[] = [
-  "session_replay",
-  "error_tracking",
   "conversations",
-  ...EXTERNAL_INBOX_SOURCES.map((s) => s.product as SourceKey),
+  "error_tracking",
+  "health_checks",
+  "session_replay",
+  ...EXTERNAL_INBOX_SOURCES.map((s) => s.product),
 ];
 
 function isSetupSourceProduct(product: SourceKey): boolean {