diff --git a/extensions/xai/api.ts b/extensions/xai/api.ts
index 91389f0ab55..039e66e9319 100644
--- a/extensions/xai/api.ts
+++ b/extensions/xai/api.ts
@@ -25,6 +25,7 @@ export {
   XAI_IMAGE_MODELS,
 } from "./model-definitions.js";
 export { isModernXaiModel, resolveXaiForwardCompatModel } from "./provider-models.js";
+export { applyXaiRuntimeModelCompat } from "./runtime-model-compat.js";
 export {
   applyXaiModelCompat,
   HTML_ENTITY_TOOL_CALL_ARGUMENTS_ENCODING,
diff --git a/extensions/xai/index.test.ts b/extensions/xai/index.test.ts
index 854da532311..347da642897 100644
--- a/extensions/xai/index.test.ts
+++ b/extensions/xai/index.test.ts
@@ -221,6 +221,7 @@ describe("xai provider plugin", () => {
         model: createProviderModel({ id: "grok-4-1-fast" }),
       } as never),
     ).toMatchObject({
+      thinkingLevelMap: { off: null },
       compat: {
         toolSchemaProfile: "xai",
         nativeWebSearchTool: true,
diff --git a/extensions/xai/index.ts b/extensions/xai/index.ts
index 9c9edf9c8b0..b850b59b0df 100644
--- a/extensions/xai/index.ts
+++ b/extensions/xai/index.ts
@@ -4,7 +4,7 @@ import { defaultToolStreamExtraParams } from "openclaw/plugin-sdk/provider-strea
 import { jsonResult, readProviderEnvValue } from "openclaw/plugin-sdk/provider-web-search";
 import { Type } from "typebox";
 import {
-  applyXaiModelCompat,
+  applyXaiRuntimeModelCompat,
   buildXaiImageGenerationProvider,
   normalizeXaiModelId,
   resolveXaiTransport,
@@ -194,7 +194,7 @@ export default defineSingleProviderPluginEntry({
         mode: "api-key" as const,
       };
     },
-    normalizeResolvedModel: ({ model }) => applyXaiModelCompat(model),
+    normalizeResolvedModel: ({ model }) => applyXaiRuntimeModelCompat(model),
     normalizeTransport: ({ provider, api, baseUrl }) =>
       resolveXaiTransport({ provider, api, baseUrl }),
     contributeResolvedModelCompat: ({ modelId, model }) =>
diff --git a/extensions/xai/provider-models.ts b/extensions/xai/provider-models.ts
index 8c02f4886a7..9aaccef61e4 100644
--- a/extensions/xai/provider-models.ts
+++ b/extensions/xai/provider-models.ts
@@ -3,9 +3,9 @@ import type {
   ProviderRuntimeModel,
 } from "openclaw/plugin-sdk/plugin-entry";
 import { normalizeModelCompat } from "openclaw/plugin-sdk/provider-model-shared";
-import { applyXaiModelCompat } from "openclaw/plugin-sdk/provider-tools";
 import { normalizeOptionalLowercaseString } from "openclaw/plugin-sdk/text-runtime";
 import { resolveXaiCatalogEntry, XAI_BASE_URL } from "./model-definitions.js";
+import { applyXaiRuntimeModelCompat } from "./runtime-model-compat.js";
 
 const XAI_MODERN_MODEL_PREFIXES = ["grok-3", "grok-4", "grok-code-fast"] as const;
 
@@ -26,7 +26,7 @@ export function resolveXaiForwardCompatModel(params: {
     return undefined;
   }
 
-  return applyXaiModelCompat(
+  return applyXaiRuntimeModelCompat(
     normalizeModelCompat({
       id: definition.id,
       name: definition.name,
diff --git a/extensions/xai/runtime-model-compat.ts b/extensions/xai/runtime-model-compat.ts
new file mode 100644
index 00000000000..c70b2cc57bf
--- /dev/null
+++ b/extensions/xai/runtime-model-compat.ts
@@ -0,0 +1,19 @@
+import { applyXaiModelCompat } from "openclaw/plugin-sdk/provider-tools";
+
+type XaiRuntimeModelCompat = {
+  compat?: unknown;
+  thinkingLevelMap?: Partial<
+    Record<"off" | "minimal" | "low" | "medium" | "high" | "xhigh", string | null>
+  >;
+};
+
+export function applyXaiRuntimeModelCompat<T extends XaiRuntimeModelCompat>(model: T): T {
+  const withCompat = applyXaiModelCompat(model);
+  return {
+    ...withCompat,
+    thinkingLevelMap: {
+      ...withCompat.thinkingLevelMap,
+      off: null,
+    },
+  };
+}
diff --git a/extensions/xai/web-search.test.ts b/extensions/xai/web-search.test.ts
index 326cb0f04b3..12503d57b3b 100644
--- a/extensions/xai/web-search.test.ts
+++ b/extensions/xai/web-search.test.ts
@@ -585,6 +585,7 @@ describe("xai provider models", () => {
       api: "openai-responses",
       baseUrl: "https://api.x.ai/v1",
       reasoning: true,
+      thinkingLevelMap: { off: null },
       input: ["text", "image"],
       contextWindow: 1_000_000,
       maxTokens: 64_000,
diff --git a/scripts/verify-docker-attestations.mjs b/scripts/verify-docker-attestations.mjs
index 5c2df08027b..3da6f0295cf 100644
--- a/scripts/verify-docker-attestations.mjs
+++ b/scripts/verify-docker-attestations.mjs
@@ -4,6 +4,11 @@ import { execFileSync } from "node:child_process";
 import process from "node:process";
 
 const ATTESTATION_REFERENCE_TYPE = "attestation-manifest";
+const ATTESTATION_ARTIFACT_TYPE = "application/vnd.docker.attestation.manifest.v1+json";
+const ATTESTATION_MANIFEST_MEDIA_TYPES = new Set([
+  "application/vnd.docker.distribution.manifest.v2+json",
+  "application/vnd.oci.image.manifest.v1+json",
+]);
 const REQUIRED_PREDICATES = ["https://spdx.dev/Document", "https://slsa.dev/provenance/v1"];
 
 export function imageRefForDigest(imageRef, digest) {
@@ -39,6 +44,13 @@ function platformMatches(actual, expected) {
   );
 }
 
+function isAttestationManifest(attestation) {
+  if (attestation?.artifactType !== undefined) {
+    return attestation.artifactType === ATTESTATION_ARTIFACT_TYPE;
+  }
+  return ATTESTATION_MANIFEST_MEDIA_TYPES.has(attestation?.mediaType);
+}
+
 function parseJson(raw, label) {
   try {
     return JSON.parse(raw);
@@ -85,11 +97,11 @@ export function collectDockerAttestationErrors(params) {
     const predicates = new Set();
     for (const descriptor of attestationDescriptors) {
       const attestation = inspectAttestation(descriptor.digest);
-      if (attestation?.artifactType !== "application/vnd.docker.attestation.manifest.v1+json") {
+      if (!isAttestationManifest(attestation)) {
         errors.push(
-          `${imageRef}: ${platformLabel} attestation ${descriptor.digest} has unexpected artifactType ${JSON.stringify(
+          `${imageRef}: ${platformLabel} attestation ${descriptor.digest} has unexpected manifest shape artifactType=${JSON.stringify(
             attestation?.artifactType,
-          )}`,
+          )} mediaType=${JSON.stringify(attestation?.mediaType)}`,
         );
       }
       for (const layer of attestation?.layers ?? []) {
diff --git a/src/agents/xai.live.test.ts b/src/agents/xai.live.test.ts
index 723f1052872..f6ffd739762 100644
--- a/src/agents/xai.live.test.ts
+++ b/src/agents/xai.live.test.ts
@@ -74,7 +74,6 @@ describeLive("xai live", () => {
         {
           apiKey: XAI_KEY,
           maxTokens: 64,
-          reasoning: "medium",
         },
       );
 
@@ -107,7 +106,6 @@ describeLive("xai live", () => {
         {
           apiKey: XAI_KEY,
           maxTokens: 128,
-          reasoning: "medium",
           onPayload: (payload) => {
             capturedPayload = payload as Record<string, unknown>;
           },
diff --git a/test/scripts/verify-docker-attestations.test.ts b/test/scripts/verify-docker-attestations.test.ts
index 181cf6ff8f8..dd14ee5ecde 100644
--- a/test/scripts/verify-docker-attestations.test.ts
+++ b/test/scripts/verify-docker-attestations.test.ts
@@ -51,6 +51,11 @@ function createAttestation(
   };
 }
 
+function createAttestationWithoutArtifactType() {
+  const { artifactType: _artifactType, ...attestation } = createAttestation();
+  return attestation;
+}
+
 describe("verify-docker-attestations", () => {
   it("resolves digest refs from tagged image refs", () => {
     expect(imageRefForDigest("ghcr.io/openclaw/openclaw:2026.4.26", imageDigest)).toBe(
@@ -72,6 +77,17 @@ describe("verify-docker-attestations", () => {
     expect(errors).toEqual([]);
   });
 
+  it("accepts OCI attestation manifests without artifactType", () => {
+    const errors = collectDockerAttestationErrors({
+      imageRef: "ghcr.io/openclaw/openclaw:test",
+      index: createIndex(),
+      requiredPlatforms: [parsePlatform("linux/amd64")],
+      inspectAttestation: () => createAttestationWithoutArtifactType(),
+    });
+
+    expect(errors).toEqual([]);
+  });
+
   it("reports missing attestation manifests", () => {
     const index = createIndex();
     index.manifests = index.manifests.slice(0, 1);
@@ -100,4 +116,20 @@ describe("verify-docker-attestations", () => {
       "ghcr.io/openclaw/openclaw:test: linux/amd64 missing predicate https://slsa.dev/provenance/v1",
     ]);
   });
+
+  it("reports an unexpected attestation manifest shape", () => {
+    const errors = collectDockerAttestationErrors({
+      imageRef: "ghcr.io/openclaw/openclaw:test",
+      index: createIndex(),
+      requiredPlatforms: [parsePlatform("linux/amd64")],
+      inspectAttestation: () => ({
+        ...createAttestation(),
+        artifactType: "application/vnd.example.invalid",
+      }),
+    });
+
+    expect(errors).toEqual([
+      `ghcr.io/openclaw/openclaw:test: linux/amd64 attestation ${attestationDigest} has unexpected manifest shape artifactType="application/vnd.example.invalid" mediaType="application/vnd.oci.image.manifest.v1+json"`,
+    ]);
+  });
 });