diff --git a/.github/scripts/gitlab-mirror.mjs b/.github/scripts/gitlab-mirror.mjs
index 9c22cd84..c725450c 100644
--- a/.github/scripts/gitlab-mirror.mjs
+++ b/.github/scripts/gitlab-mirror.mjs
@@ -36,6 +36,10 @@ export function mirrorTarget(repo, rootGroup, sourceOrganization) {
     targetPath: transformed ? `${path}-${repo.id}` : repo.name,
     targetGroup, targetVisibility: repo.visibility === 'public' ? 'public' : 'private',
     description: `Mirror of ${repo.clone_url}\nGitHub repository ID: ${repo.id}`,
+    ciSettings: repo.owner.login.toLowerCase() === 'lizardbyte-infrastructure' ? {
+      builds_access_level: 'disabled', shared_runners_enabled: false,
+      group_runners_enabled: false, auto_devops_enabled: false,
+    } : {},
   };
 }
 
@@ -118,13 +122,21 @@ export class GitLabMirrors {
     throw new Error('Existing GitLab mirror identity does not match the source repository');
   }
 
-  /** Secure non-public sources before transferring or allowing the Git push stage to proceed. */
+  /** Verify private visibility and infrastructure CI settings before transferring or pushing Git data. */
   async secure(project, repo) {
-    if (repo.targetVisibility !== 'private') return;
-    const result = await this.request('PUT', `/projects/${project.id}`, {visibility: 'private'});
-    if (result.status !== 200 || result.data.id !== project.id || result.data.visibility !== 'private') {
+    const settings = {...repo.ciSettings, ...(repo.targetVisibility === 'private' ? {visibility: 'private'} : {})};
+    if (!Object.keys(settings).length) return;
+    if (Object.entries(settings).every(([key, value]) => project[key] === value)) return;
+    const result = await this.request('PUT', `/projects/${project.id}`, settings);
+    if (result.status !== 200 || result.data.id !== project.id) {
+      throw new Error('GitLab project safety settings verification failed');
+    }
+    if (repo.targetVisibility === 'private' && result.data.visibility !== 'private') {
       throw new Error('GitLab privacy verification failed');
     }
+    if (Object.entries(repo.ciSettings).some(([key, value]) => result.data[key] !== value)) {
+      throw new Error('GitLab CI/CD disable verification failed');
+    }
   }
 
   /** Resolve an existing mirror or a new-project namespace, preserving legacy GitLab project IDs. */
diff --git a/.github/scripts/mirror-gitlab.sh b/.github/scripts/mirror-gitlab.sh
index 2f215ddc..bd0246e3 100644
--- a/.github/scripts/mirror-gitlab.sh
+++ b/.github/scripts/mirror-gitlab.sh
@@ -143,6 +143,7 @@ for ((index = 0; index < repository_count; index++)); do
   target_path="$(jq -er '.targetPath' <<< "${repository}")"
   target_visibility="$(jq -er '.targetVisibility' <<< "${repository}")"
   description="$(jq -er '.description' <<< "${repository}")"
+  ci_settings="$(jq -ec '.ciSettings' <<< "${repository}")"
   group_id="$(jq -r '.namespaceId // empty' <<< "${repository}")"
   target_group="$(jq -er '.targetGroup' <<< "${repository}")"
   preparation_error="$(jq -r '.preparationError // empty' <<< "${repository}")"
@@ -196,6 +197,7 @@ for ((index = 0; index < repository_count; index++)); do
     payload="$(
       jq -nc \
         --arg description "${description}" \
+        --argjson ci_settings "${ci_settings}" \
         --arg import_url "${create_import_url}" \
         --arg name "${target_name}" \
         --arg path "${target_path}" \
@@ -208,7 +210,7 @@ for ((index = 0; index < repository_count; index++)); do
           namespace_id: $namespace_id,
           visibility: $visibility,
           initialize_with_readme: false
-        } + if $import_url == "" then {} else {import_url: $import_url} end'
+        } + $ci_settings + if $import_url == "" then {} else {import_url: $import_url} end'
     )"
     if ! status="$(gitlab_request POST "${GITLAB_API_URL}/projects" "${payload}")"; then
       echo "::error title=Mirror failed: ${source_name}::Unable to create the GitLab project." >&2
@@ -269,7 +271,8 @@ for ((index = 0; index < repository_count; index++)); do
     jq -nc \
       --arg description "${description}" \
       --arg visibility "${target_visibility}" \
-      '{description: $description, visibility: $visibility}'
+      --argjson ci_settings "${ci_settings}" \
+      '{description: $description, visibility: $visibility} + $ci_settings'
   )"
   if ! status="$(
     gitlab_request PUT "${GITLAB_API_URL}/projects/${project_id}" "${payload}"
@@ -293,6 +296,12 @@ for ((index = 0; index < repository_count; index++)); do
     echo "::error title=Mirror failed: ${source_name}::GitLab visibility verification failed." >&2
     exit 1
   fi
+  if ! jq -e --argjson ci_settings "${ci_settings}" \
+    '. as $project | $ci_settings | to_entries | all(.[]; $project[.key] == .value)' \
+    "${response_file}" > /dev/null; then
+    echo "::error title=Mirror failed: ${source_name}::GitLab CI/CD disable verification failed." >&2
+    exit 1
+  fi
 
   target_clone_url="$(jq -er '.ssh_url_to_repo' "${response_file}")"
 
diff --git a/.github/workflows/README.md b/.github/workflows/README.md
index bd7cf02d..efcd3097 100644
--- a/.github/workflows/README.md
+++ b/.github/workflows/README.md
@@ -61,6 +61,13 @@ and incomplete transfers stop that repository's delivery while other repositorie
 verified as private before any transfer or Git push. Existing archived GitLab mirrors require manual handling;
 the workflow does not unarchive them. Large-project imports and the existing GitLab SSH transport remain in use.
 
+GitLab copies of `LizardByte-infrastructure` repositories have CI/CD, instance runners, group runners, and
+Auto DevOps disabled. New projects receive these settings during creation, before any server-side import;
+existing projects are updated during preparation and the settings are verified again before pushing. This
+prevents mirrored upstream `.gitlab-ci.yml` files from starting GitLab jobs. Other source organizations retain
+their existing CI settings. Disabling CI/CD does not delete pipeline history or cancel jobs that are already
+running; cancel those jobs separately if needed.
+
 Namespace preparation and mirror delivery share the same GitLab request helper. HTTP 429 responses are retried
 up to five attempts, honoring `Retry-After` with exponential backoff when the header is absent. A requested wait
 longer than five minutes is reported instead of retried early. Other HTTP errors, including 404s after project
diff --git a/tests/gitlab-mirror.test.mjs b/tests/gitlab-mirror.test.mjs
index 02325b7d..c373f407 100644
--- a/tests/gitlab-mirror.test.mjs
+++ b/tests/gitlab-mirror.test.mjs
@@ -49,6 +49,76 @@ test('target paths retain legacy spelling and stable normalization, with separat
   assert.throws(() => mirrorTarget({clone_url: 'bad'}, 'lizardbyte', 'LizardByte'), /Invalid mirror source/);
 });
 
+const infrastructureGroup = {...group, full_path: 'lizardbyte/lizardbyte-infrastructure'};
+const infrastructureProject = {id: 42, path_with_namespace: `${infrastructureGroup.full_path}/mirror`,
+  namespace: {id: 2}, description: 'GitHub repository ID: 99'};
+const infrastructureRoutes = {
+  'GET /groups/lizardbyte': [200, root],
+  'GET /groups/lizardbyte%2Flizardbyte-infrastructure': [200, infrastructureGroup],
+  'GET /projects/lizardbyte%2Flizardbyte-infrastructure%2Fmirror': [200, infrastructureProject],
+};
+const infrastructureSettings = {
+  builds_access_level: 'disabled', shared_runners_enabled: false, group_runners_enabled: false, auto_devops_enabled: false,
+};
+
+test('only infrastructure mirror targets disable CI/CD, instance/group runners, and Auto DevOps', () => {
+  for (const owner of ['LizardByte-infrastructure', 'lizardbyte-INFRASTRUCTURE']) {
+    assert.deepEqual(target(owner).ciSettings, infrastructureSettings);
+  }
+  for (const owner of ['LizardByte', 'SunshineStream', 'Themerr', 'KokoStreamTV', 'Other']) {
+    assert.deepEqual(target(owner).ciSettings, {});
+  }
+});
+
+test('existing infrastructure mirrors have CI disabled and verified before delivery is allowed', async () => {
+  const {client, calls} = harness({...infrastructureRoutes,
+    'PUT /projects/42': [200, {...infrastructureProject, ...infrastructureSettings}]});
+  const result = await client.prepare(target('LizardByte-infrastructure', 'mirror'));
+  assert.equal(result.projectId, 42);
+  assert.deepEqual(calls.find(call => call.key === 'PUT /projects/42').body, infrastructureSettings);
+});
+
+test('infrastructure CI settings and private visibility are secured in the same verified update', async () => {
+  const {client, calls} = harness({...infrastructureRoutes,
+    'PUT /projects/42': [200, {...infrastructureProject, ...infrastructureSettings, visibility: 'private'}]});
+  await client.prepare(target('LizardByte-infrastructure', 'mirror', 99, 'private'));
+  assert.deepEqual(calls.find(call => call.key === 'PUT /projects/42').body, {...infrastructureSettings, visibility: 'private'});
+});
+
+test('denied or incompletely applied infrastructure CI settings stop delivery', async () => {
+  const responses = [[403, {}], [200, {...infrastructureProject, ...infrastructureSettings, id: 123}],
+    [200, infrastructureProject], ...Object.keys(infrastructureSettings).map(key =>
+      [200, {...infrastructureProject, ...infrastructureSettings, [key]: key === 'builds_access_level' ? 'enabled' : true}])];
+  for (const response of responses) {
+    const {client} = harness({...infrastructureRoutes, 'PUT /projects/42': response});
+    await assert.rejects(client.prepare(target('LizardByte-infrastructure', 'mirror')), /settings verification|CI\/CD disable/);
+  }
+});
+
+test('already disabled infrastructure mirrors avoid redundant preparation updates', async () => {
+  const {client, calls} = harness({...infrastructureRoutes,
+    'GET /projects/lizardbyte%2Flizardbyte-infrastructure%2Fmirror': [200, {...infrastructureProject, ...infrastructureSettings}]});
+  assert.equal((await client.prepare(target('LizardByte-infrastructure', 'mirror'))).projectId, 42);
+  assert.ok(calls.every(call => call.key.startsWith('GET')));
+});
+
+test('mirrors from other organizations preserve manually configured GitLab CI settings', async () => {
+  const project = {id: 42, path_with_namespace: 'lizardbyte/sunshinestream/Sunshine', namespace: {id: 2},
+    description: 'GitHub repository ID: 99', builds_access_level: 'private', shared_runners_enabled: true};
+  const {client, calls} = harness({...base, 'GET /projects/lizardbyte%2Fsunshinestream%2FSunshine': [200, project]});
+  assert.equal((await client.prepare(target())).projectId, 42);
+  assert.ok(calls.every(call => call.key.startsWith('GET')));
+});
+
+test('infrastructure mirror transfers cannot proceed until CI suppression is verified', async () => {
+  const legacy = {...infrastructureProject, path_with_namespace: 'lizardbyte/mirror', namespace: {id: 1}};
+  const {client, calls} = harness({...infrastructureRoutes,
+    'GET /projects/lizardbyte%2Flizardbyte-infrastructure%2Fmirror': [404, {}],
+    'GET /projects/lizardbyte%2Fmirror': [200, legacy], 'PUT /projects/42': [200, legacy]});
+  await assert.rejects(client.prepare(target('LizardByte-infrastructure', 'mirror')), /CI\/CD disable/);
+  assert.ok(!calls.some(call => call.key.endsWith('/transfer')));
+});
+
 test('mirror preparation rejects CLI paths before reading inventory or making requests', () => {
   const result = spawnSync(process.execPath, ['.github/scripts/gitlab-mirror.mjs', '../unexpected.json'], {encoding: 'utf8'});
   assert.equal(result.status, 1);
@@ -184,6 +254,9 @@ test('Git push remains behind preparation and private visibility verification, w
   const script = readFileSync('.github/scripts/mirror-gitlab.sh', 'utf8');
   assert.ok(script.indexOf('preparation_error}') < script.indexOf('Checking for the GitLab project'));
   assert.ok(script.indexOf('GitLab privacy verification failed') < script.indexOf('clone --mirror'));
+  assert.ok(script.indexOf('GitLab CI/CD disable verification failed') < script.indexOf('clone --mirror'));
+  assert.match(script, /\} \+ \$ci_settings \+ if \$import_url/);
+  assert.match(script, /\{description: \$description, visibility: \$visibility\} \+ \$ci_settings/);
   assert.match(script, /namespace_id/);
   assert.match(script, /push --mirror/);
   assert.match(script, /import\/git/);