diff --git a/specs/phoenix/assets/prettier.config.cjs b/specs/phoenix/assets/prettier.config.cjs
new file mode 100644
index 0000000..ee2e235
--- /dev/null
+++ b/specs/phoenix/assets/prettier.config.cjs
@@ -0,0 +1,7 @@
+/** @type {import('prettier').Options} */
+module.exports = {
+  arrowParens: "always",
+  semi: false,
+  tabWidth: 2,
+  trailingComma: "es5",
+}