diff --git a/.github/workflows/test-common.yml b/.github/workflows/test-common.yml
index 7204c5d7d7..35bf24387c 100644
--- a/.github/workflows/test-common.yml
+++ b/.github/workflows/test-common.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: common, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-aiohttp.yml b/.github/workflows/test-integration-aiohttp.yml
index f70d652f2e..002bdbc715 100644
--- a/.github/workflows/test-integration-aiohttp.yml
+++ b/.github/workflows/test-integration-aiohttp.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: aiohttp, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-ariadne.yml b/.github/workflows/test-integration-ariadne.yml
index 38e0d8271b..054ed19156 100644
--- a/.github/workflows/test-integration-ariadne.yml
+++ b/.github/workflows/test-integration-ariadne.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: ariadne, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-arq.yml b/.github/workflows/test-integration-arq.yml
index 614e53f390..909fb8f7c8 100644
--- a/.github/workflows/test-integration-arq.yml
+++ b/.github/workflows/test-integration-arq.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: arq, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-asgi.yml b/.github/workflows/test-integration-asgi.yml
index 9a29398fc2..7ce40e705d 100644
--- a/.github/workflows/test-integration-asgi.yml
+++ b/.github/workflows/test-integration-asgi.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: asgi, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-asyncpg.yml b/.github/workflows/test-integration-asyncpg.yml
index 4b2ed26671..a6b063a2cf 100644
--- a/.github/workflows/test-integration-asyncpg.yml
+++ b/.github/workflows/test-integration-asyncpg.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: asyncpg, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-aws_lambda.yml b/.github/workflows/test-integration-aws_lambda.yml
index 385bb4b13a..e6b3264b06 100644
--- a/.github/workflows/test-integration-aws_lambda.yml
+++ b/.github/workflows/test-integration-aws_lambda.yml
@@ -6,7 +6,7 @@ on:
       - master
       - release/**
 
-  pull_request:
+  pull_request_target:
 
 # Cancel in progress workflows on pull_requests.
 # https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
@@ -25,7 +25,18 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+  authorize:
+    name: Determine environment
+    environment:
+      ${{ github.event_name == 'pull_request_target' &&
+      github.event.pull_request.head.repo.full_name != github.repository &&
+      'external' || 'internal' }}
+    runs-on: ubuntu-latest
+    steps:
+      - run: true
+
   test:
+    needs: authorize
     name: aws_lambda, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     timeout-minutes: 30
@@ -42,6 +53,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha || github.ref }}
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
diff --git a/.github/workflows/test-integration-beam.yml b/.github/workflows/test-integration-beam.yml
index a86d6ccd7d..d6fa0b3461 100644
--- a/.github/workflows/test-integration-beam.yml
+++ b/.github/workflows/test-integration-beam.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: beam, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-boto3.yml b/.github/workflows/test-integration-boto3.yml
index fb246c899e..ebf1b5a80b 100644
--- a/.github/workflows/test-integration-boto3.yml
+++ b/.github/workflows/test-integration-boto3.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: boto3, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-bottle.yml b/.github/workflows/test-integration-bottle.yml
index 5bbdcaac53..36053829df 100644
--- a/.github/workflows/test-integration-bottle.yml
+++ b/.github/workflows/test-integration-bottle.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: bottle, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-celery.yml b/.github/workflows/test-integration-celery.yml
index 71623f0e1e..0c15f4d843 100644
--- a/.github/workflows/test-integration-celery.yml
+++ b/.github/workflows/test-integration-celery.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: celery, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-chalice.yml b/.github/workflows/test-integration-chalice.yml
index 6615aeb75d..3f6df0fa43 100644
--- a/.github/workflows/test-integration-chalice.yml
+++ b/.github/workflows/test-integration-chalice.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: chalice, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-clickhouse_driver.yml b/.github/workflows/test-integration-clickhouse_driver.yml
index 30561ab5a1..196ae1044b 100644
--- a/.github/workflows/test-integration-clickhouse_driver.yml
+++ b/.github/workflows/test-integration-clickhouse_driver.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: clickhouse_driver, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-cloud_resource_context.yml b/.github/workflows/test-integration-cloud_resource_context.yml
index f6140d823c..069a4037f9 100644
--- a/.github/workflows/test-integration-cloud_resource_context.yml
+++ b/.github/workflows/test-integration-cloud_resource_context.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: cloud_resource_context, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-django.yml b/.github/workflows/test-integration-django.yml
index 819fb70f1a..ee2ff3e292 100644
--- a/.github/workflows/test-integration-django.yml
+++ b/.github/workflows/test-integration-django.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: django, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-falcon.yml b/.github/workflows/test-integration-falcon.yml
index 09d8ff8d80..f9aa94407a 100644
--- a/.github/workflows/test-integration-falcon.yml
+++ b/.github/workflows/test-integration-falcon.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: falcon, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-fastapi.yml b/.github/workflows/test-integration-fastapi.yml
index 0a330b1401..78e40d791d 100644
--- a/.github/workflows/test-integration-fastapi.yml
+++ b/.github/workflows/test-integration-fastapi.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: fastapi, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-flask.yml b/.github/workflows/test-integration-flask.yml
index d716df171d..477c355a02 100644
--- a/.github/workflows/test-integration-flask.yml
+++ b/.github/workflows/test-integration-flask.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: flask, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-gcp.yml b/.github/workflows/test-integration-gcp.yml
index c6eb4adcc8..ec79ced946 100644
--- a/.github/workflows/test-integration-gcp.yml
+++ b/.github/workflows/test-integration-gcp.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: gcp, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-gevent.yml b/.github/workflows/test-integration-gevent.yml
index d879f5c2f5..3777e8f91b 100644
--- a/.github/workflows/test-integration-gevent.yml
+++ b/.github/workflows/test-integration-gevent.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: gevent, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-gql.yml b/.github/workflows/test-integration-gql.yml
index 9ebd5a16b7..b6bf9369bd 100644
--- a/.github/workflows/test-integration-gql.yml
+++ b/.github/workflows/test-integration-gql.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: gql, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-graphene.yml b/.github/workflows/test-integration-graphene.yml
index 5236731eb0..ece99bb5da 100644
--- a/.github/workflows/test-integration-graphene.yml
+++ b/.github/workflows/test-integration-graphene.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: graphene, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-grpc.yml b/.github/workflows/test-integration-grpc.yml
index 0e4f48d423..e220bbba3f 100644
--- a/.github/workflows/test-integration-grpc.yml
+++ b/.github/workflows/test-integration-grpc.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: grpc, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-httpx.yml b/.github/workflows/test-integration-httpx.yml
index 3c67d2370c..e577d8d22c 100644
--- a/.github/workflows/test-integration-httpx.yml
+++ b/.github/workflows/test-integration-httpx.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: httpx, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-huey.yml b/.github/workflows/test-integration-huey.yml
index db6c5fcbc4..add301ced6 100644
--- a/.github/workflows/test-integration-huey.yml
+++ b/.github/workflows/test-integration-huey.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: huey, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-loguru.yml b/.github/workflows/test-integration-loguru.yml
index 885b1534f4..3822091519 100644
--- a/.github/workflows/test-integration-loguru.yml
+++ b/.github/workflows/test-integration-loguru.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: loguru, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-opentelemetry.yml b/.github/workflows/test-integration-opentelemetry.yml
index 5e2722ed49..57a3a93f71 100644
--- a/.github/workflows/test-integration-opentelemetry.yml
+++ b/.github/workflows/test-integration-opentelemetry.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: opentelemetry, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-pure_eval.yml b/.github/workflows/test-integration-pure_eval.yml
index 30b5f8cc1b..3f3db64183 100644
--- a/.github/workflows/test-integration-pure_eval.yml
+++ b/.github/workflows/test-integration-pure_eval.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: pure_eval, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-pymongo.yml b/.github/workflows/test-integration-pymongo.yml
index 2a3d7697f2..7e85408f7c 100644
--- a/.github/workflows/test-integration-pymongo.yml
+++ b/.github/workflows/test-integration-pymongo.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: pymongo, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-pyramid.yml b/.github/workflows/test-integration-pyramid.yml
index 7a4b327b3f..5ff60c6058 100644
--- a/.github/workflows/test-integration-pyramid.yml
+++ b/.github/workflows/test-integration-pyramid.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: pyramid, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-quart.yml b/.github/workflows/test-integration-quart.yml
index 838683cf9c..f7027c52e9 100644
--- a/.github/workflows/test-integration-quart.yml
+++ b/.github/workflows/test-integration-quart.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: quart, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-redis.yml b/.github/workflows/test-integration-redis.yml
index 54ad9abe2a..d06cfc5059 100644
--- a/.github/workflows/test-integration-redis.yml
+++ b/.github/workflows/test-integration-redis.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: redis, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-rediscluster.yml b/.github/workflows/test-integration-rediscluster.yml
index 73ed5c1733..7fc24206d4 100644
--- a/.github/workflows/test-integration-rediscluster.yml
+++ b/.github/workflows/test-integration-rediscluster.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: rediscluster, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-requests.yml b/.github/workflows/test-integration-requests.yml
index bc8e4a990c..fef4be85fe 100644
--- a/.github/workflows/test-integration-requests.yml
+++ b/.github/workflows/test-integration-requests.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: requests, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-rq.yml b/.github/workflows/test-integration-rq.yml
index b0812c36e6..c0d846c57c 100644
--- a/.github/workflows/test-integration-rq.yml
+++ b/.github/workflows/test-integration-rq.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: rq, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-sanic.yml b/.github/workflows/test-integration-sanic.yml
index 27ca05eb6a..4371071fcb 100644
--- a/.github/workflows/test-integration-sanic.yml
+++ b/.github/workflows/test-integration-sanic.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: sanic, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-sqlalchemy.yml b/.github/workflows/test-integration-sqlalchemy.yml
index 70cbb7ff79..c06b670af7 100644
--- a/.github/workflows/test-integration-sqlalchemy.yml
+++ b/.github/workflows/test-integration-sqlalchemy.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: sqlalchemy, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-starlette.yml b/.github/workflows/test-integration-starlette.yml
index ad3e269075..cd3c29eef1 100644
--- a/.github/workflows/test-integration-starlette.yml
+++ b/.github/workflows/test-integration-starlette.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: starlette, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-starlite.yml b/.github/workflows/test-integration-starlite.yml
index 01715e1c66..dc9c98db58 100644
--- a/.github/workflows/test-integration-starlite.yml
+++ b/.github/workflows/test-integration-starlite.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: starlite, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-strawberry.yml b/.github/workflows/test-integration-strawberry.yml
index 16b42ec2a2..2460bfa35e 100644
--- a/.github/workflows/test-integration-strawberry.yml
+++ b/.github/workflows/test-integration-strawberry.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: strawberry, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-tornado.yml b/.github/workflows/test-integration-tornado.yml
index c9ccec4f38..4b4ca94dab 100644
--- a/.github/workflows/test-integration-tornado.yml
+++ b/.github/workflows/test-integration-tornado.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: tornado, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test-integration-trytond.yml b/.github/workflows/test-integration-trytond.yml
index 137cec7ef4..9b97004820 100644
--- a/.github/workflows/test-integration-trytond.yml
+++ b/.github/workflows/test-integration-trytond.yml
@@ -23,6 +23,7 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+
   test:
     name: trytond, python ${{ matrix.python-version }}, ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
diff --git a/scripts/split-tox-gh-actions/ci-yaml-authorize-snippet.txt b/scripts/split-tox-gh-actions/ci-yaml-authorize-snippet.txt
new file mode 100644
index 0000000000..b53fae0b11
--- /dev/null
+++ b/scripts/split-tox-gh-actions/ci-yaml-authorize-snippet.txt
@@ -0,0 +1,9 @@
+  authorize:
+    name: Determine environment
+    environment:
+      ${{ github.event_name == 'pull_request_target' &&
+      github.event.pull_request.head.repo.full_name != github.repository &&
+      'external' || 'internal' }}
+    runs-on: ubuntu-latest
+    steps:
+      - run: true
diff --git a/scripts/split-tox-gh-actions/ci-yaml-test-py27-snippet.txt b/scripts/split-tox-gh-actions/ci-yaml-test-py27-snippet.txt
index 94723c1658..25707bef14 100644
--- a/scripts/split-tox-gh-actions/ci-yaml-test-py27-snippet.txt
+++ b/scripts/split-tox-gh-actions/ci-yaml-test-py27-snippet.txt
@@ -7,6 +7,7 @@
 
     steps:
       - uses: actions/checkout@v4
+{{ checkout_with }}
 
       - name: Setup Test Env
         run: |
diff --git a/scripts/split-tox-gh-actions/ci-yaml-test-snippet.txt b/scripts/split-tox-gh-actions/ci-yaml-test-snippet.txt
index c2d10596ea..f7c4e7225c 100644
--- a/scripts/split-tox-gh-actions/ci-yaml-test-snippet.txt
+++ b/scripts/split-tox-gh-actions/ci-yaml-test-snippet.txt
@@ -7,6 +7,7 @@
 
     steps:
       - uses: actions/checkout@v4
+{{ checkout_with }}
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
diff --git a/scripts/split-tox-gh-actions/ci-yaml.txt b/scripts/split-tox-gh-actions/ci-yaml.txt
index 90bd5c61ce..5d644f31b2 100644
--- a/scripts/split-tox-gh-actions/ci-yaml.txt
+++ b/scripts/split-tox-gh-actions/ci-yaml.txt
@@ -6,7 +6,7 @@ on:
       - master
       - release/**
 
-  pull_request:
+{{ on_pull_request }}
 
 # Cancel in progress workflows on pull_requests.
 # https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
@@ -24,6 +24,8 @@ env:
     ${{ github.workspace }}/dist-serverless
 
 jobs:
+{{ authorize }}
+
 {{ test }}
 
 {{ test_py27 }}
diff --git a/scripts/split-tox-gh-actions/split-tox-gh-actions.py b/scripts/split-tox-gh-actions/split-tox-gh-actions.py
index ea187475db..3b3a38038f 100755
--- a/scripts/split-tox-gh-actions/split-tox-gh-actions.py
+++ b/scripts/split-tox-gh-actions/split-tox-gh-actions.py
@@ -29,6 +29,7 @@
 TEMPLATE_FILE_SERVICES = TEMPLATE_DIR / "ci-yaml-services.txt"
 TEMPLATE_FILE_SETUP_DB = TEMPLATE_DIR / "ci-yaml-setup-db.txt"
 TEMPLATE_FILE_AWS_CREDENTIALS = TEMPLATE_DIR / "ci-yaml-aws-credentials.txt"
+TEMPLATE_SNIPPET_AUTHORIZE = TEMPLATE_DIR / "ci-yaml-authorize-snippet.txt"
 TEMPLATE_SNIPPET_TEST = TEMPLATE_DIR / "ci-yaml-test-snippet.txt"
 TEMPLATE_SNIPPET_TEST_PY27 = TEMPLATE_DIR / "ci-yaml-test-py27-snippet.txt"
 
@@ -45,6 +46,10 @@
     "aws_lambda",
 ]
 
+FRAMEWORKS_NEEDING_SECRETS = [
+    "aws_lambda",
+]
+
 MATRIX_DEFINITION = """
     strategy:
       fail-fast: false
@@ -76,30 +81,68 @@
           echo "One of the dependent jobs has failed. You may need to re-run it." && exit 1
 """
 
+CHECKOUT_WITH = """\
+        with:
+          ref: ${{ github.event.pull_request.head.sha || github.ref }}
+"""
+
 
-def write_yaml_file(
-    template,
-    current_framework,
-    python_versions,
-):
+def write_yaml_file(template, current_framework, python_versions):
     """Write the YAML configuration file for one framework to disk."""
     py_versions = [py.replace("py", "") for py in python_versions]
     py27_supported = "2.7" in py_versions
 
+    template = [line for line in template]
+
+    on_pull_request_loc = template.index("{{ on_pull_request }}\n")
+    if current_framework in FRAMEWORKS_NEEDING_SECRETS:
+        on_pull_request = "  pull_request_target:\n"
+    else:
+        on_pull_request = "  pull_request:\n"
+
+    template[on_pull_request_loc] = on_pull_request
+
+    authorize_loc = template.index("{{ authorize }}\n")
+    if current_framework in FRAMEWORKS_NEEDING_SECRETS:
+        with open(TEMPLATE_SNIPPET_AUTHORIZE, "r") as f:
+            authorize_snippet = f.readlines()
+        template = (
+            template[:authorize_loc] + authorize_snippet + template[authorize_loc + 1 :]
+        )
+    else:
+        template.pop(authorize_loc)
+
     test_loc = template.index("{{ test }}\n")
-    f = open(TEMPLATE_SNIPPET_TEST, "r")
-    test_snippet = f.readlines()
+    with open(TEMPLATE_SNIPPET_TEST, "r") as f:
+        test_snippet = f.readlines()
+
+    if current_framework in FRAMEWORKS_NEEDING_SECRETS:
+        test_snippet.insert(1, "    needs: authorize\n")
+
+    checkout_with_loc = test_snippet.index("{{ checkout_with }}\n")
+    if current_framework in FRAMEWORKS_NEEDING_SECRETS:
+        test_snippet[checkout_with_loc] = CHECKOUT_WITH
+    else:
+        test_snippet.pop(checkout_with_loc)
     template = template[:test_loc] + test_snippet + template[test_loc + 1 :]
-    f.close()
 
     test_py27_loc = template.index("{{ test_py27 }}\n")
     if py27_supported:
-        f = open(TEMPLATE_SNIPPET_TEST_PY27, "r")
-        test_py27_snippet = f.readlines()
+        with open(TEMPLATE_SNIPPET_TEST_PY27, "r") as f:
+            test_py27_snippet = f.readlines()
+
+        if current_framework in FRAMEWORKS_NEEDING_SECRETS:
+            test_py27_snippet.insert(1, "    needs: authorize\n")
+
+        checkout_with_loc = test_py27_snippet.index("{{ checkout_with }}\n")
+        if current_framework in FRAMEWORKS_NEEDING_SECRETS:
+            test_py27_snippet[checkout_with_loc] = CHECKOUT_WITH
+        else:
+            test_py27_snippet.pop(checkout_with_loc)
+
         template = (
             template[:test_py27_loc] + test_py27_snippet + template[test_py27_loc + 1 :]
         )
-        f.close()
 
         py_versions.remove("2.7")
     else: