diff --git a/package.json b/package.json
index ccb07b9..7f8c3eb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "zcode-app-cli",
-  "version": "3.7.5-11",
+  "version": "3.7.6-11",
   "description": "Unofficial terminal client for the ZCode agent runtime",
   "keywords": [
     "agent",
diff --git a/scripts/check-runtime.ts b/scripts/check-runtime.ts
index edcf99e..48cc87f 100755
--- a/scripts/check-runtime.ts
+++ b/scripts/check-runtime.ts
@@ -49,8 +49,6 @@ if (!runtimeSource.includes('"plugin://"')
   || !runtimeSource.includes(".subscribeSessionEvents=")
   || !runtimeSource.includes(".sendBackgroundTaskMessage=async")
   || !runtimeSource.includes("backgroundTaskDetails")
-  || !runtimeSource.includes('i.includes("AI SDK Warning")&&i.includes("cacheControl breakpoint limit")')
-  || !runtimeSource.includes('if(n==="model_not_found")return{code:lr.ModelNotFound')
   || !runtimeSource.includes("autoBackgroundMs:this.config.subagents?.autoBackgroundMs??1e3,outputRootDir:")
   || runtimeSource.split("Detached background agent lifecycle failed").length < 3
   || !runtimeSource.includes('if(e?.restart===!0&&o.status==="running")')
diff --git a/scripts/sync-runtime.ts b/scripts/sync-runtime.ts
index e83608d..cab6fcf 100755
--- a/scripts/sync-runtime.ts
+++ b/scripts/sync-runtime.ts
@@ -247,24 +247,6 @@ export function supportsMultiMessageFileRewind(runtime: string): boolean {
     .test(runtime);
 }
 
-/** Suppress known cache-control warnings before they reach the TUI stderr stream. */
-export function patchRuntimeTuiWarnings(runtime: string): string {
-  const suppression = 'i.includes("AI SDK Warning")&&i.includes("cacheControl breakpoint limit")';
-  if (runtime.includes(suppression)) return runtime;
-  const anchor = "if(LKn.test(i)||BKn.test(i)){";
-  if (!runtime.includes(anchor)) return runtime;
-  return runtime.replace(anchor, "if(LKn.test(i)||BKn.test(i)||" + suppression + "){");
-}
-
-/** Prevent provider model lookup failures from being retried as generic 5xx errors. */
-export function patchRuntimeProviderRetryClassification(runtime: string): string {
-  const classification = 'if(n==="model_not_found")return{code:lr.ModelNotFound,message:o,reason:Ht.InvalidRequest,retryReason:fn.NetworkError,retryable:!1,retryAfterMs:r,statusCode:i};';
-  if (runtime.includes(classification)) return runtime;
-  const anchor = 'function QBr(e,t,r){if(!CS(e))return;let o=XBr(e),n=eUr(e),i=AWo(e,t),a=n?ZBr(n):void 0;';
-  if (!runtime.includes(anchor)) return runtime;
-  return runtime.replace(anchor, anchor + classification);
-}
-
 /** Keep short Agent calls inline, but detach long-running agents from the foreground turn. */
 export function patchRuntimeAgentAutoBackground(runtime: string): string {
   const marker = "autoBackgroundMs:this.config.subagents?.autoBackgroundMs??1e3,outputRootDir:";
@@ -743,11 +725,7 @@ async function installTuiBridge(nextVendor: string): Promise<void> {
         patchRuntimeAgentAutoBackground(
           patchRuntimeDetachedAgentLifecycle(
             patchRuntimeTerminalToolProjection(
-              patchRuntimeProviderRetryClassification(
-                patchRuntimeTuiWarnings(
-                  patchRuntimeBackgroundTaskProjection(patchRuntimeTuiBridge(runtime))
-                )
-              )
+              patchRuntimeBackgroundTaskProjection(patchRuntimeTuiBridge(runtime))
             )
           )
         )
diff --git a/test/sync-runtime.test.ts b/test/sync-runtime.test.ts
index 2881b17..d923de3 100644
--- a/test/sync-runtime.test.ts
+++ b/test/sync-runtime.test.ts
@@ -8,11 +8,9 @@ import {
   patchRuntimeAgentAutoBackground,
   patchRuntimeBackgroundTaskProjection,
   patchRuntimeDetachedAgentLifecycle,
-  patchRuntimeProviderRetryClassification,
   patchRuntimeTerminalToolProjection,
   patchRuntimeOAuthHttpErrors,
   patchRuntimeTuiBridge,
-  patchRuntimeTuiWarnings,
   patchRuntimeZaiDesktopOAuth,
   resolveArtifactUrl,
   resolveLatestRuntimeLock,
@@ -411,43 +409,6 @@ describe("runtime synchronization", () => {
     expect(modernPatched).not.toContain("Array.isArray(t.targetMessageIds)");
   });
 
-  test("filters cache-control warnings from the TUI stderr stream", () => {
-    const runtime = "function UKn(e,t){if(LKn.test(i)||BKn.test(i)){return i}}";
-    const patched = patchRuntimeTuiWarnings(runtime);
-    expect(patched).toContain('i.includes("AI SDK Warning")&&i.includes("cacheControl breakpoint limit")');
-    expect(patchRuntimeTuiWarnings(patched)).toBe(patched);
-  });
-
-  test("does not retry provider model lookup failures reported with HTTP 503", () => {
-    const runtime = [
-      'const CS=()=>true,XBr=e=>e.providerMessage,eUr=e=>e.providerCode,AWo=e=>e.responseStatus,ZBr=()=>undefined;',
-      'const lr={ModelNotFound:"model_not_found"},Ht={InvalidRequest:"invalid_request"},fn={NetworkError:"network_error"};',
-      "function QBr(e,t,r){if(!CS(e))return;let o=XBr(e),n=eUr(e),i=AWo(e,t),a=n?ZBr(n):void 0;",
-      "if(a)return a;return i>=500?{retryable:!0,statusCode:i}:{retryable:!1,statusCode:i}}"
-    ].join("");
-    const patched = patchRuntimeProviderRetryClassification(runtime);
-    expect(patched).toContain(
-      'if(n==="model_not_found")return{code:lr.ModelNotFound,message:o,reason:Ht.InvalidRequest,retryReason:fn.NetworkError,retryable:!1'
-    );
-    const classify = new Function(`${patched};return QBr;`)() as (
-      error: { providerCode: string; providerMessage: string; responseStatus: number }
-    ) => { code?: string; retryable: boolean; statusCode: number };
-    expect(classify({
-      providerCode: "model_not_found",
-      providerMessage: "No available channel for model GLM-5.2",
-      responseStatus: 503
-    })).toMatchObject({ code: "model_not_found", retryable: false, statusCode: 503 });
-    expect(classify({
-      providerCode: "server_error",
-      providerMessage: "Temporary upstream failure",
-      responseStatus: 503
-    })).toMatchObject({ retryable: true, statusCode: 503 });
-    expect(patchRuntimeProviderRetryClassification(patched)).toBe(patched);
-    expect(patchRuntimeProviderRetryClassification("runtime without the classifier anchor")).toBe(
-      "runtime without the classifier anchor"
-    );
-  });
-
   test("auto-backgrounds long Agent calls while preserving explicit configuration", () => {
     const runtime = "function delay(){return{autoBackgroundMs:this.config.subagents?.autoBackgroundMs,outputRootDir:'tasks'}}";
     const patched = patchRuntimeAgentAutoBackground(runtime);
diff --git a/zcode-runtime.lock.json b/zcode-runtime.lock.json
index 29ed3f9..e2e15ab 100644
--- a/zcode-runtime.lock.json
+++ b/zcode-runtime.lock.json
@@ -1,8 +1,8 @@
 {
   "schemaVersion": 1,
-  "appVersion": "3.7.5",
+  "appVersion": "3.7.6",
   "platform": "linux",
   "arch": "x64",
-  "url": "https://cdn-zcode.z.ai/zcode/electron/releases/3.7.5/linux-x64/ZCode-3.7.5-linux-x64.deb",
-  "sha512": "+gCFedwyxr4BJEIQ4QWmbj21FlyGn7Gb3LbcQsyx38PKAt2qoRbjAVjM5XVU0Tj5wViuKFZk/1xRuem28Kjf7A=="
+  "url": "https://cdn-zcode.z.ai/zcode/electron/releases/3.7.6/linux-x64/ZCode-3.7.6-linux-x64.deb",
+  "sha512": "G2/jCJdOOc7vlCSoqJjCyz7UTdaBWucW7+itRYU5jCEeqvirGOau3hK7HAuf4/Ahv5qQNBO3kU2JjwXx4kdCWQ=="
 }