diff --git a/ops/pipelines/static-pipeline.yaml b/ops/pipelines/static-pipeline.yaml
index 4a844561e..ad887d0ff 100644
--- a/ops/pipelines/static-pipeline.yaml
+++ b/ops/pipelines/static-pipeline.yaml
@@ -95,6 +95,21 @@ steps:
         exit 1
       fi
 
+  # After duck, on success, upload and run any post-build steps that
+  # were output by the dynamic pipeline.
+  - label: ":arrow_heading_down:"
+    depends_on:
+      - step: ":duck:"
+        allow_failure: false
+    command: |
+      set -ueo pipefail
+
+      buildkite-agent artifact download "pipeline/*" .
+
+      find ./pipeline -name 'post-chunk-*.json' | tac | while read chunk; do
+        buildkite-agent pipeline upload $$chunk
+      done
+
   # After duck, on success, create a gcroot if the build branch is
   # canon.
   #