diff --git a/ci/jenkins/KT-NapCatQQ-Runtime-Release.Jenkinsfile b/ci/jenkins/KT-NapCatQQ-Runtime-Release.Jenkinsfile
index 86be13b..1ee9863 100644
--- a/ci/jenkins/KT-NapCatQQ-Runtime-Release.Jenkinsfile
+++ b/ci/jenkins/KT-NapCatQQ-Runtime-Release.Jenkinsfile
@@ -46,9 +46,6 @@ pipeline {
       }
       steps {
         script {
-          if (params.CONFIRM_API_PROMOTION_TARGET != 'PROMOTE_KT_TEMPLATE_API_MAIN') {
-            error('CONFIRM_API_PROMOTION_TARGET must equal PROMOTE_KT_TEMPLATE_API_MAIN before API promotion runs.')
-          }
           requireRuntimeOverrides(
             params.QQBOT_NAPCAT_IMAGE_OVERRIDE,
             params.QQBOT_NAPCAT_DESKTOP_PROFILE_VERSION_OVERRIDE
@@ -72,6 +69,9 @@ pipeline {
       }
       steps {
         script {
+          if (params.CONFIRM_API_PROMOTION_TARGET != 'PROMOTE_KT_TEMPLATE_API_MAIN') {
+            error('CONFIRM_API_PROMOTION_TARGET must equal PROMOTE_KT_TEMPLATE_API_MAIN before API promotion runs.')
+          }
           requireRuntimeOverrides(
             params.QQBOT_NAPCAT_IMAGE_OVERRIDE,
             params.QQBOT_NAPCAT_DESKTOP_PROFILE_VERSION_OVERRIDE
diff --git a/src/selfTest.ts b/src/selfTest.ts
index 3f12f9f..91f982f 100644
--- a/src/selfTest.ts
+++ b/src/selfTest.ts
@@ -524,6 +524,62 @@ export async function runSelfTest(): Promise<void> {
       );
     }
   }
+  const runtimeImageBuildStageStart = runtimeReleaseJenkinsTemplate.indexOf(
+    "stage('Runtime image build and publish')",
+  );
+  const apiPromotionStageStart = runtimeReleaseJenkinsTemplate.indexOf(
+    "stage('API promotion')",
+  );
+  const pipelineEndBeforeRuntimeHelpers = runtimeReleaseJenkinsTemplate.indexOf(
+    "\n}\n\n/**",
+    apiPromotionStageStart,
+  );
+  if (
+    runtimeImageBuildStageStart === -1 ||
+    apiPromotionStageStart === -1 ||
+    pipelineEndBeforeRuntimeHelpers === -1 ||
+    runtimeImageBuildStageStart > apiPromotionStageStart
+  ) {
+    throw new Error("NapCat runtime Jenkins template stage slice self-check failed");
+  }
+  const runtimeImageBuildStage = runtimeReleaseJenkinsTemplate.slice(
+    runtimeImageBuildStageStart,
+    apiPromotionStageStart,
+  );
+  const apiPromotionStage = runtimeReleaseJenkinsTemplate.slice(
+    apiPromotionStageStart,
+    pipelineEndBeforeRuntimeHelpers,
+  );
+  if (runtimeImageBuildStage.includes("CONFIRM_API_PROMOTION_TARGET")) {
+    throw new Error(
+      "NapCat runtime Jenkins runtime image build stage must not check API promotion confirmation",
+    );
+  }
+  if (!apiPromotionStage.includes("CONFIRM_API_PROMOTION_TARGET")) {
+    throw new Error(
+      "NapCat runtime Jenkins API promotion stage missing confirmation target check",
+    );
+  }
+  if (!apiPromotionStage.includes("PROMOTE_KT_TEMPLATE_API_MAIN")) {
+    throw new Error(
+      "NapCat runtime Jenkins API promotion stage missing production confirmation value",
+    );
+  }
+  const apiPromotionConfirmationIndex = apiPromotionStage.indexOf(
+    "CONFIRM_API_PROMOTION_TARGET",
+  );
+  const apiPromotionBuildIndex = apiPromotionStage.indexOf(
+    "build job: params.API_PROMOTION_JOB",
+  );
+  if (
+    apiPromotionConfirmationIndex === -1 ||
+    apiPromotionBuildIndex === -1 ||
+    apiPromotionConfirmationIndex > apiPromotionBuildIndex
+  ) {
+    throw new Error(
+      "NapCat runtime Jenkins API promotion confirmation must run before API build job",
+    );
+  }
   const codexExecutionArtifactRoot = resolveInsideRoot(
     ".kt-workspace/test-artifacts/napcat-codex-runner-self-test",
   );