diff --git a/.github/workflows/base120.yml b/.github/workflows/base120.yml
index 980a327..d2d50e4 100644
--- a/.github/workflows/base120.yml
+++ b/.github/workflows/base120.yml
@@ -14,6 +14,7 @@ on:
 
 jobs:
   mirror-guard:
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository
     runs-on: [self-hosted, Linux, X64, wsl, base120]
     steps:
       - uses: actions/checkout@v6.0.3
@@ -25,6 +26,7 @@ jobs:
           fi
 
   test:
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository
     runs-on: [self-hosted, Linux, X64, wsl, base120]
     steps:
       - uses: actions/checkout@v6.0.3
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 378b01c..2f89d51 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,6 +8,7 @@ on:
 
 jobs:
   test:
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository
     runs-on: [self-hosted, Linux, X64, wsl, base120]
     strategy:
       matrix:
diff --git a/.github/workflows/guardrails.yml b/.github/workflows/guardrails.yml
index 5fea8e7..04d8679 100644
--- a/.github/workflows/guardrails.yml
+++ b/.github/workflows/guardrails.yml
@@ -11,6 +11,7 @@ on:
 
 jobs:
   corpus:
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository
     runs-on: [self-hosted, Linux, X64, wsl, base120]
     steps:
       - uses: actions/checkout@v6.0.3