diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
new file mode 100644
index 00000000000..f693448eb26
--- /dev/null
+++ b/.github/workflows/c-cpp.yml
@@ -0,0 +1,23 @@
+name: C/C++ CI
+modified by phetyompts(py)
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make
+    - name: make check
+      run: make check
+    - name: make distcheck
+      run: make distcheck
diff --git a/.github/workflows/phetyompts b/.github/workflows/phetyompts
new file mode 100644
index 00000000000..386df597d7a
--- /dev/null
+++ b/.github/workflows/phetyompts
@@ -0,0 +1,3 @@
+Hello world. Let's me introduce my work instruction and innitial incognition on free space area clould server offeral to beginning traind experience this is for declarations some political of privacy Term and policy on gitHub.docs workspace # Git.phetyompts:(`Git.phet path prompt`) my ide Terms of development on gitHub.docs`.
+copyright software (c) 2026 reserve to owner all right.
+...