diff --git a/README.md b/README.md
index ac47520..dc99dbb 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
 # tiny-go-test-repository
 
 A tiny Go test repository
+this is step 2
+this is step 3
+this is step 4
+previous_step.modified_files=[README.md]
diff --git a/README.txt b/README.txt
new file mode 100644
index 0000000..888e1ec
--- /dev/null
+++ b/README.txt
@@ -0,0 +1 @@
+this is step 1
diff --git a/my-output.txt b/my-output.txt
new file mode 100644
index 0000000..257ae8e
--- /dev/null
+++ b/my-output.txt
@@ -0,0 +1 @@
+this is step 5