diff --git a/packages/dsh-loopx-plugin/src/observer.ts b/packages/dsh-loopx-plugin/src/observer.ts
index dcfcf3b3c7..078ec632f6 100644
--- a/packages/dsh-loopx-plugin/src/observer.ts
+++ b/packages/dsh-loopx-plugin/src/observer.ts
@@ -103,6 +103,8 @@ const SECRET_LIKE_SURFACES = [
   /\bxox[baprs]-[a-z0-9-]{10,}/iu,
   /\baiza[a-z0-9_-]{20,}/iu,
   /\b(?:sk|rk)_(?:live|test)_[a-z0-9]{12,}/iu,
+  /\bsk-(?:proj|svcacct|admin)-[a-z0-9_-]{20,}/iu,
+  /\bsk-ant-[a-z0-9_-]{20,}/iu,
   /\bnpm_[a-z0-9]{20,}/iu,
   /\bpypi-[a-z0-9_-]{20,}/iu,
   /\beyj[a-z0-9_-]{10,}\.[a-z0-9_-]{10,}\.[a-z0-9_-]{10,}\b/iu,
diff --git a/packages/dsh-loopx-plugin/tests/observer.spec.ts b/packages/dsh-loopx-plugin/tests/observer.spec.ts
index 5cbad823a1..abb9a4f292 100644
--- a/packages/dsh-loopx-plugin/tests/observer.spec.ts
+++ b/packages/dsh-loopx-plugin/tests/observer.spec.ts
@@ -331,6 +331,10 @@ describe('shadow observer envelopes', () => {
       ['slack_app_token', slackApp + '123456789012-123456789012-abcdefghijklmnopqrstuvwx'],
       ['google_api_key', googleKey + 'SyA1234567890abcdefghijklmnopqrstuvw'],
       ['stripe_restricted_key', stripeRestricted + 'abcdefghijklmnopqrstuvwx'],
+      ['openai_project_key', 'sk' + '-proj-' + 'a'.repeat(20)],
+      ['openai_service_account_key', 'sk' + '-svcacct-' + 'a'.repeat(20)],
+      ['openai_admin_key', 'sk' + '-admin-' + 'a'.repeat(20)],
+      ['anthropic_key', 'sk' + '-ant-' + 'a'.repeat(20)],
       ['npm_token', npmToken + 'abcdefghijklmnopqrstuvwxyz0123456789'],
       ['pypi_token', pypiToken + 'AgEIcHlwaS5vcmcabcdefghijklmnop'],
       ['api_key_label_without_floor', 'api' + '_key:abc'],