diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index c033446..135969a 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,11 +1,64 @@
 name: CI
 
-on: push
+on:
+  workflow_dispatch: {}
+  push: {}
 
 jobs:
-  test:
+  check-all-success:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: cocogitto-action
+      - name: Initialise repository
+        run: |
+          git init
+          git config --global user.name 'Mona Lisa'
+          git config --global user.email 'mona.lisa@example.com'
+          echo 'cocogitto-action/' > .gitignore
+          echo '# Mona Lisa' > README.md
+          git add README.md .gitignore
+          git commit -m 'chore: add Mona Lisa docs'
+      - name: Run cocogitto-action
+        id: cog1
+        uses: ./cocogitto-action
+        continue-on-error: true
+        with:
+          check: true
+          check-latest-tag-only: false
+          release: false
+      - name: Checks
+        run: |
+          [ "${{ steps.cog1.outcome }}" == 'success' ] || exit 1
+  check-all-failure:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: cocogitto-action
+      - name: Initialise repository
+        run: |
+          git init
+          git config --global user.name 'Mona Lisa'
+          git config --global user.email 'mona.lisa@example.com'
+          echo 'cocogitto-action/' > .gitignore
+          echo '# Mona Lisa' > README.md
+          git add README.md .gitignore
+          git commit -m 'add Mona Lisa docs'
+      - name: Run cocogitto-action
+        id: cog1
+        uses: ./cocogitto-action
+        continue-on-error: true
+        with:
+          check: true
+          check-latest-tag-only: false
+          release: false
+      - name: Checks
+        run: |
+          [ "${{ steps.cog1.outcome }}" == 'failure' ] || exit 1
+  check-only-last-has-last:
     runs-on: ubuntu-latest
-
     steps:
       - uses: actions/checkout@v4
         with:
@@ -13,10 +66,70 @@ jobs:
       - name: Initialise repository
         run: |
           git init
-          echo "# Mona Lisa" > README.md
-          git config --global user.name "Mona Lisa"
-          git config --global user.email "mona.lisa@example.com"
-          git add README.md
-          git commit -m "docs: add Mona Lisa docs"
+          git config --global user.name 'Mona Lisa'
+          git config --global user.email 'mona.lisa@example.com'
+          echo 'cocogitto-action/' > .gitignore
+          echo '# Mona Lisa' > README.md
+          git add README.md .gitignore
+          git commit -m 'add Mona Lisa docs'
+          git tag '0.1.0'
+          git commit --allow-empty -m 'feat: new cool feature'
       - name: Run cocogitto-action
+        id: cog1
         uses: ./cocogitto-action
+        continue-on-error: true
+        with:
+          check: true
+          check-latest-tag-only: true
+          release: false
+      - run: |
+          git commit --allow-empty -m 'wrong commit format'
+      - name: Run cocogitto-action
+        id: cog2
+        uses: ./cocogitto-action
+        continue-on-error: true
+        with:
+          check: true
+          check-latest-tag-only: true
+          release: false
+      - name: Checks
+        run: |
+          [ "${{ steps.cog1.outcome }}" == 'success' ] || exit 1
+          [ "${{ steps.cog2.outcome }}" == 'failure' ] || exit 1
+  check-only-last-no-last:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: cocogitto-action
+      - name: Initialise repository
+        run: |
+          git init
+          git config --global user.name 'Mona Lisa'
+          git config --global user.email 'mona.lisa@example.com'
+          echo 'cocogitto-action/' > .gitignore
+          echo '# Mona Lisa' > README.md
+          git add README.md .gitignore
+          git commit -m 'chore: add Mona Lisa docs'
+      - name: Run cocogitto-action
+        id: cog1
+        uses: ./cocogitto-action
+        continue-on-error: true
+        with:
+          check: true
+          check-latest-tag-only: true
+          release: false
+      # - run: |
+          # git commit --allow-empty -m 'wrong commit format'
+      # - name: Run cocogitto-action
+        # id: cog2
+        # uses: ./cocogitto-action
+        # continue-on-error: true
+        # with:
+          # check: true
+          # check-latest-tag-only: true
+          # release: false
+      - name: Checks
+        run: |
+          [ "${{ steps.cog1.outcome }}" == 'success' ] || exit 1
+          # [ "${{ steps.cog2.outcome }}" == 'failure' ] || exit 1
diff --git a/cog.sh b/cog.sh
index add915f..7c0c002 100755
--- a/cog.sh
+++ b/cog.sh
@@ -17,15 +17,17 @@ git config --global user.email "${GIT_USER_EMAIL}"
 
 cog --version
 
-if [ "${CHECK}" = "true" ]; then
-  if [ "${LATEST_TAG_ONLY}" = "true" ]; then
-    if [ "$(git describe --tags --abbrev=0)" ]; then
-      message="Checking commits from $(git describe --tags --abbrev=0)"
+CURRENT_VERSION=$(cog get-version 2>/dev/null || echo '')
+
+if [ "${CHECK}" = 'true' ]; then
+  if [ "${LATEST_TAG_ONLY}" = 'true' ]; then
+    if [ -n "${CURRENT_VERSION}" ]; then
+      echo "Checking commits from ${CURRENT_VERSION}"
+      cog check --from-latest-tag || exit 1
     else
-      message="No tag found checking history from first commit"
+      echo 'No tag found checking history from first commit'
+      cog check || exit 1
     fi
-    echo "${message}"
-    cog check --from-latest-tag || exit 1
   else
     echo "Checking all commits"
     cog check || exit 1