diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ea80235a..85d231035 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@
 - Memory: allow custom OpenAI-compatible embedding endpoints for memory search (remote baseUrl/apiKey/headers). (#819 — thanks @mukhtharcm)
 
 ### Fixes
-- Fallback: treat credential validation failures ("no credentials found", "no API key found") as auth errors that trigger model fallback. (#761 — thanks @pilkster)
+- Fallback: treat credential validation failures ("no credentials found", "no API key found") as auth errors that trigger model fallback. (#822 — thanks @sebslight)
 - Telegram: persist polling update offsets across restarts to avoid duplicate updates. (#739 — thanks @thewilloftheshadow)
 - Discord: avoid duplicate message/reaction listeners on monitor reloads. (#744 — thanks @thewilloftheshadow)
 - System events: include local timestamps when events are injected into prompts. (#245 — thanks @thewilloftheshadow)
diff --git a/src/agents/model-fallback.test.ts b/src/agents/model-fallback.test.ts
index 6f0b3fb30..b9786f4b8 100644
--- a/src/agents/model-fallback.test.ts
+++ b/src/agents/model-fallback.test.ts
@@ -124,6 +124,26 @@ describe("runWithModelFallback", () => {
     expect(run.mock.calls[1]?.[1]).toBe("claude-haiku-3-5");
   });
 
+  it("falls back on missing API key errors", async () => {
+    const cfg = makeCfg();
+    const run = vi
+      .fn()
+      .mockRejectedValueOnce(new Error("No API key found for profile openai."))
+      .mockResolvedValueOnce("ok");
+
+    const result = await runWithModelFallback({
+      cfg,
+      provider: "openai",
+      model: "gpt-4.1-mini",
+      run,
+    });
+
+    expect(result.result).toBe("ok");
+    expect(run).toHaveBeenCalledTimes(2);
+    expect(run.mock.calls[1]?.[0]).toBe("anthropic");
+    expect(run.mock.calls[1]?.[1]).toBe("claude-haiku-3-5");
+  });
+
   it("appends the configured primary as a last fallback", async () => {
     const cfg = makeCfg({
       agents: {
diff --git a/src/telegram/monitor.ts b/src/telegram/monitor.ts
index 908c8de39..a14cda10d 100644
--- a/src/telegram/monitor.ts
+++ b/src/telegram/monitor.ts
@@ -6,11 +6,11 @@ import { formatDurationMs } from "../infra/format-duration.js";
 import type { RuntimeEnv } from "../runtime.js";
 import { resolveTelegramAccount } from "./accounts.js";
 import { createTelegramBot } from "./bot.js";
+import { makeProxyFetch } from "./proxy.js";
 import {
   readTelegramUpdateOffset,
   writeTelegramUpdateOffset,
 } from "./update-offset-store.js";
-import { makeProxyFetch } from "./proxy.js";
 import { startTelegramWebhook } from "./webhook.js";
 
 export type MonitorTelegramOpts = {
diff --git a/src/telegram/update-offset-store.test.ts b/src/telegram/update-offset-store.test.ts
index 2483c4101..b028802bc 100644
--- a/src/telegram/update-offset-store.test.ts
+++ b/src/telegram/update-offset-store.test.ts
@@ -34,9 +34,9 @@ describe("telegram update offset store", () => {
         updateId: 421,
       });
 
-      expect(
-        await readTelegramUpdateOffset({ accountId: "primary" }),
-      ).toBe(421);
+      expect(await readTelegramUpdateOffset({ accountId: "primary" })).toBe(
+        421,
+      );
     });
   });
 });