diff --git a/.gitattributes b/.gitattributes
index 73aa45d18..c6579c4e5 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,5 +1,6 @@
 lib/*.js linguist-generated=true
 .github/workflows/__* linguist-generated=true
+.github/workflows/*.lock.yml linguist-generated=true
 
 # Reduce incidence of needless merge conflicts on CHANGELOG.md
 # The man page at
diff --git a/.github/sizeup.yml b/.github/sizeup.yml
index e94b73b0a..62d506d33 100644
--- a/.github/sizeup.yml
+++ b/.github/sizeup.yml
@@ -44,6 +44,7 @@ sizeup:
         color: e50009
   ignoredFilePatterns:
     - ".github/workflows/__*"
+    - ".github/workflows/*.lock.yml"
     - "lib/**/*"
     - "package-lock.json"
   testFilePatterns:
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 000000000..5ed8531ca
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,2 @@
+# Generated by `gh aw compile`.
+.github/workflows/*.lock.yml