diff --git a/.github/actions/base/commit-check/action.yml b/.github/actions/base/commit-check/action.yml
index 36c16c8..c0f5a92 100644
--- a/.github/actions/base/commit-check/action.yml
+++ b/.github/actions/base/commit-check/action.yml
@@ -62,27 +62,6 @@ runs:
           bun i --frozen-lockfile
         fi
 
-    - name: Install commitlint globally if no config
-      if: github.event_name == 'pull_request' && steps.commitlint-config.outputs.has-config == 'false'
-      shell: bash
-      working-directory: ${{ env.HOLDEX_WORKING_DIR || '.' }}
-      run: |
-        if [ "${{ inputs.package-manager }}" = "pnpm" ]; then
-          pnpm add -D @commitlint/config-conventional
-        elif [ "${{ inputs.package-manager }}" = "npm" ]; then
-          npm install --save-dev @commitlint/config-conventional
-        else
-          bun i -D @commitlint/config-conventional
-        fi
-
-    - name: Create commitlint config if missing
-      if: github.event_name == 'pull_request' && steps.commitlint-config.outputs.has-config == 'false'
-      shell: bash
-      working-directory: ${{ env.HOLDEX_WORKING_DIR || '.' }}
-      run: |
-        echo "extends:" > .commitlintrc.yml
-        echo "  - '@commitlint/config-conventional'" >> .commitlintrc.yml
-
     - name: Check PR title
       if: github.event_name == 'pull_request'
       shell: bash
@@ -90,4 +69,8 @@ runs:
       env:
         PR_TITLE: ${{ github.event.pull_request.title }}
       run: |
-        echo "$PR_TITLE" | commitlint
+        if [ "${{ steps.commitlint-config.outputs.has-config }}" = "true" ]; then
+          echo "$PR_TITLE" | commitlint
+        else
+          echo "$PR_TITLE" | commitlint --default-config
+        fi
diff --git a/ACTIONS.md b/ACTIONS.md
index 04c378e..7d54737 100644
--- a/ACTIONS.md
+++ b/ACTIONS.md
@@ -98,7 +98,7 @@ Path: `/.github/actions/base/commit-check`
 - Detects commitlint configuration from standard config files or `package.json`.
 - If config exists, installs dependencies in repo context:
   - `bun i --frozen-lockfile`, `pnpm install --frozen-lockfile`, or `npm ci`.
-- If config does not exist, installs `@commitlint/config-conventional` and creates fallback `.commitlintrc.yml`.
+- If config does not exist, validates using `commitlint --default-config`.
 - Validates PR title via `commitlint`.
 - Respects `HOLDEX_WORKING_DIR` env var: all steps run in that directory when set.