diff --git a/brain/raw/tdd-pattern-test.md b/brain/raw/tdd-pattern-test.md
new file mode 100644
index 0000000..16aa5c7
--- /dev/null
+++ b/brain/raw/tdd-pattern-test.md
@@ -0,0 +1,3 @@
+# TDD Pattern
+
+Always write the failing test first.
\ No newline at end of file
diff --git a/brain/wiki/concepts/tdd-pattern-test.md b/brain/wiki/concepts/tdd-pattern-test.md
new file mode 100644
index 0000000..16aa5c7
--- /dev/null
+++ b/brain/wiki/concepts/tdd-pattern-test.md
@@ -0,0 +1,3 @@
+# TDD Pattern
+
+Always write the failing test first.
\ No newline at end of file