diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index c8ff4249f47..da5e377b59c 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -3,14 +3,7 @@
   "image": "mcr.microsoft.com/devcontainers/go:1-bookworm",
   "customizations": {
     "vscode": {
-      "extensions": [
-        "golang.go",
-        "GitHub.copilot-chat",
-        "GitHub.copilot",
-        "github.vscode-github-actions",
-        "astro-build.astro-vscode",
-        "DavidAnson.vscode-markdownlint"
-      ]
+      "extensions": ["golang.go", "GitHub.copilot-chat", "GitHub.copilot", "github.vscode-github-actions", "astro-build.astro-vscode", "DavidAnson.vscode-markdownlint"]
     },
     "codespaces": {
       "repositories": {
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 00000000000..012deb716c4
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,14 @@
+# Prettier ignore file for gh-aw
+
+# Package manager files (should not be reformatted)
+package.json
+package-lock.json
+
+# Build artifacts
+node_modules/
+dist/
+build/
+*.min.js
+
+# Generated files
+*.lock.yml
diff --git a/actions/setup/js/package.json b/actions/setup/js/package.json
index 3051835f78e..ec5d511c95c 100644
--- a/actions/setup/js/package.json
+++ b/actions/setup/js/package.json
@@ -25,7 +25,7 @@
     "format:cjs": "npx prettier --write '**/*.cjs' '**/*.ts' '**/*.json'",
     "lint:cjs": "npx prettier --check '**/*.cjs' '**/*.ts' '**/*.json'",
     "format:schema": "npx prettier --write ../../../pkg/workflow/schemas/github-workflow.json --ignore-path /dev/null",
-    "format:pkg-json": "npx prettier --write '../../../**/*.json' '!../../../pkg/workflow/js/**/*.json' --ignore-path /dev/null",
-    "check:pkg-json": "npx prettier --check '../../../**/*.json' '!../../../pkg/workflow/js/**/*.json' --ignore-path /dev/null"
+    "format:pkg-json": "npx prettier --write '../../../**/*.json' '!../../../pkg/workflow/js/**/*.json' '!../../../**/package.json' '!../../../**/package-lock.json'",
+    "check:pkg-json": "npx prettier --check '../../../**/*.json' '!../../../pkg/workflow/js/**/*.json' '!../../../**/package.json' '!../../../**/package-lock.json'"
   }
 }