diff --git a/.github/workflows/notify-codecov.yml b/.github/workflows/notify-codecov.yml
new file mode 100644
index 0000000000..30274cf000
--- /dev/null
+++ b/.github/workflows/notify-codecov.yml
@@ -0,0 +1,27 @@
+name: Notify Codecov
+
+on:
+  workflow_run:
+    workflows:
+      - "Contrib tests with LLMs"
+      - "Contrib tests without LLMs"
+      - "Core tests with LLMs"
+      - "Core tests without LLMs"
+      - "Integration tests"
+      - "Test with optional dependencies"
+    types:
+      - completed
+
+permissions: {}
+
+jobs:
+  notify:
+    runs-on: ubuntu-latest
+    if: github.event.workflow_run.conclusion == 'success'
+    steps:
+      - name: Send Codecov notification
+        uses: codecov/codecov-action@v3
+        with:
+          run_command: send-notifications
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: false
diff --git a/autogen/dummy.py b/autogen/dummy.py
new file mode 100644
index 0000000000..1e4e562a98
--- /dev/null
+++ b/autogen/dummy.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 - 2025, AG2ai, Inc., AG2ai open-source projects maintainers and core contributors
+#
+# SPDX-License-Identifier: Apache-2.0
+
+from math import ceil
+
+
+def add(a: int, b: int) -> int:
+    return a + b
+
+
+def ag2_ceil(x: float) -> int:
+    return ceil(x)
+
+
+def sub(a: int, b: int) -> int:
+    return a - b
diff --git a/codecov.yml b/codecov.yml
index 1f9ff2d104..829d56d441 100644
--- a/codecov.yml
+++ b/codecov.yml
@@ -1,7 +1,8 @@
 codecov:
   require_ci_to_pass: yes
   notify:
-    after_n_builds: 15
+    # manual_trigger: true
+    after_n_builds: 30
     wait_for_ci: yes
 
 coverage:
@@ -9,21 +10,30 @@ coverage:
     project:
       default:
         # Basic settings
-        informational: true
         target: auto
         threshold: 1%
-        base: auto
         if_ci_failed: success
+        base: auto
+        branches:
+          - main
     patch:
       default:
         # Settings for new code in PRs
-        informational: true
         target: auto
         threshold: 1%
+        if_ci_failed: success
         base: auto
 
 # Configure codecov bot behavior
-comment: false
+comment:
+# Show only changed files in PR comment
+  layout: "condensed_header, condensed_files, condensed_footer"
+  behavior: new
+  # Hide PR comment if there are no changes in coverage
+  require_changes: true
+  # Only post comment after all builds finish
+  after_n_builds: 30
+  hide_project_coverage: true
 
 # Ignore certain paths/files
 ignore:
diff --git a/test/test_dummy.py b/test/test_dummy.py
new file mode 100644
index 0000000000..ebdb00df8f
--- /dev/null
+++ b/test/test_dummy.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2023 - 2025, AG2ai, Inc., AG2ai open-source projects maintainers and core contributors
+#
+# SPDX-License-Identifier: Apache-2.0
+
+from autogen.dummy import add, ag2_ceil
+
+
+def test_add() -> None:
+    actual = add(3, 5)
+    expected = 8
+    assert actual == expected
+
+
+def test_ag2_ceil() -> None:
+    actual = ag2_ceil(0.9)
+    expected = 1
+    assert actual == expected