diff --git a/src/i18n/messages/vi.json b/src/i18n/messages/vi.json
index a17c1fc52c..16f62b1f7c 100644
--- a/src/i18n/messages/vi.json
+++ b/src/i18n/messages/vi.json
@@ -12207,7 +12207,7 @@
       },
       "omni-webhooks": {
         "name": "Webhook",
-        "description": "__MISSING__:Register, list, test, and remove webhook endpoints. Configure event subscriptions (request.completed, request.failed, quota.exceeded, etc.) and manage delivery retries."
+        "description": "Đăng ký, liệt kê, kiểm thử và xoá các endpoint webhook. Cấu hình đăng ký sự kiện (request.completed, request.failed, quota.exceeded, v.v.) và quản lý thử lại giao hàng."
       },
       "omni-mcp": {
         "name": "Máy chủ MCP",
diff --git a/tests/unit/webhook-discord-dispatcher.test.ts b/tests/unit/webhook-discord-dispatcher.test.ts
index 4a49c3ba2e..605f4aa86b 100644
--- a/tests/unit/webhook-discord-dispatcher.test.ts
+++ b/tests/unit/webhook-discord-dispatcher.test.ts
@@ -1,5 +1,6 @@
 import test from "node:test";
 import assert from "node:assert/strict";
+import { WEBHOOK_EVENT_VALUES } from "../../src/lib/webhooks/eventDescriptions.ts";
 
 const { buildDiscordPayload } = await import("../../src/lib/webhooks/integrations/discord.ts");
 
@@ -14,15 +15,7 @@ test("buildDiscordPayload — request.failed produces embed with model", () => {
 });
 
 test("buildDiscordPayload — all WEBHOOK_EVENTS return object with content or embeds", () => {
-  const events = [
-    "request.completed",
-    "request.failed",
-    "provider.error",
-    "provider.recovered",
-    "quota.exceeded",
-    "combo.switched",
-    "test.ping",
-  ] as const;
+  const events = WEBHOOK_EVENT_VALUES;
   for (const event of events) {
     const payload = buildDiscordPayload(event, {});
     assert.ok(
@@ -33,7 +26,7 @@ test("buildDiscordPayload — all WEBHOOK_EVENTS return object with content or e
 });
 
 test("buildDiscordPayload — embeds have title and color fields", () => {
-  const payload = buildDiscordPayload("provider.error", { provider: "openai" });
+  const payload = buildDiscordPayload("request.failed", { provider: "openai" });
   assert.ok(Array.isArray(payload.embeds) && payload.embeds.length > 0, "should have embeds");
   const embed = payload.embeds![0];
   assert.ok(typeof embed.title === "string" && embed.title.length > 0, "embed must have title");
diff --git a/tests/unit/webhook-slack-dispatcher.test.ts b/tests/unit/webhook-slack-dispatcher.test.ts
index 44b34626cf..ad91a774e3 100644
--- a/tests/unit/webhook-slack-dispatcher.test.ts
+++ b/tests/unit/webhook-slack-dispatcher.test.ts
@@ -1,5 +1,6 @@
 import test from "node:test";
 import assert from "node:assert/strict";
+import { WEBHOOK_EVENT_VALUES } from "../../src/lib/webhooks/eventDescriptions.ts";
 
 const { buildSlackPayload } = await import("../../src/lib/webhooks/integrations/slack.ts");
 
@@ -30,8 +31,8 @@ test("buildSlackPayload — test.ping produces a ping/test message", () => {
   );
 });
 
-test("buildSlackPayload — provider.error includes provider context", () => {
-  const payload = buildSlackPayload("provider.error", { provider: "openai", model: "gpt-4" });
+test("buildSlackPayload — request.failed includes provider context", () => {
+  const payload = buildSlackPayload("request.failed", { provider: "openai" });
   const combined = JSON.stringify(payload);
   assert.ok(
     combined.includes("Provider") ||
@@ -43,15 +44,7 @@ test("buildSlackPayload — provider.error includes provider context", () => {
 });
 
 test("buildSlackPayload — all WEBHOOK_EVENTS produce valid payloads with text field", () => {
-  const events = [
-    "request.completed",
-    "request.failed",
-    "provider.error",
-    "provider.recovered",
-    "quota.exceeded",
-    "combo.switched",
-    "test.ping",
-  ] as const;
+  const events = WEBHOOK_EVENT_VALUES;
   for (const event of events) {
     const payload = buildSlackPayload(event, {});
     assert.ok(
diff --git a/tests/unit/webhook-telegram-dispatcher.test.ts b/tests/unit/webhook-telegram-dispatcher.test.ts
index eeb5ee2c92..29bf2f586c 100644
--- a/tests/unit/webhook-telegram-dispatcher.test.ts
+++ b/tests/unit/webhook-telegram-dispatcher.test.ts
@@ -1,5 +1,6 @@
 import test from "node:test";
 import assert from "node:assert/strict";
+import { WEBHOOK_EVENT_VALUES } from "../../src/lib/webhooks/eventDescriptions.ts";
 
 const { buildTelegramPayload, buildTelegramUrl } =
   await import("../../src/lib/webhooks/integrations/telegram.ts");
@@ -77,15 +78,7 @@ test("buildTelegramPayload — chat_id matches provided value for groups", () =>
 });
 
 test("buildTelegramPayload — all WEBHOOK_EVENTS produce valid payloads with chat_id", () => {
-  const events = [
-    "request.completed",
-    "request.failed",
-    "provider.error",
-    "provider.recovered",
-    "quota.exceeded",
-    "combo.switched",
-    "test.ping",
-  ] as const;
+  const events = WEBHOOK_EVENT_VALUES;
   for (const event of events) {
     const payload = buildTelegramPayload(event, {}, "99999");
     assert.equal(payload.chat_id, "99999");
diff --git a/tests/unit/webhooks-ghost-events.test.ts b/tests/unit/webhooks-ghost-events.test.ts
index 427b0467a7..a5d26e6019 100644
--- a/tests/unit/webhooks-ghost-events.test.ts
+++ b/tests/unit/webhooks-ghost-events.test.ts
@@ -30,4 +30,16 @@ describe("webhook catalogue", () => {
     const { notifyWebhookEvent } = await import("../../src/lib/webhookDispatcher.ts");
     assert.equal(typeof notifyWebhookEvent, "function");
   });
+
+  it("every builder accepts every value in WEBHOOK_EVENT_VALUES without throwing", async () => {
+    const { buildDiscordPayload } = await import("../../src/lib/webhooks/integrations/discord.ts");
+    const { buildSlackPayload } = await import("../../src/lib/webhooks/integrations/slack.ts");
+    const { buildTelegramPayload } =
+      await import("../../src/lib/webhooks/integrations/telegram.ts");
+    for (const event of WEBHOOK_EVENT_VALUES) {
+      assert.doesNotThrow(() => buildDiscordPayload(event, {}));
+      assert.doesNotThrow(() => buildSlackPayload(event, {}));
+      assert.doesNotThrow(() => buildTelegramPayload(event, {}, "99999"));
+    }
+  });
 });