diff --git a/.github/workflows/phpcs-phpcbf.yml b/.github/workflows/phpcs-phpcbf.yml
index fad77df..a5e3ea0 100644
--- a/.github/workflows/phpcs-phpcbf.yml
+++ b/.github/workflows/phpcs-phpcbf.yml
@@ -16,4 +16,5 @@ jobs:
         uses: WorkOfStan/phpcs-fix@main
         with:
           commit-changes: true
+          #debug: true
           stop-on-manual-fix: true
diff --git a/.github/workflows/polish-the-code.yml b/.github/workflows/polish-the-code.yml
index 6359e24..2629278 100644
--- a/.github/workflows/polish-the-code.yml
+++ b/.github/workflows/polish-the-code.yml
@@ -12,6 +12,11 @@ on:
       # notest branches to ignore testing of partial online commits
       - "notest/**"
 
+  schedule:
+    # Run the workflow at 6:30 AM UTC on the 18th of every month
+    - cron: "30 6 18 * *"
+    # Scheduled runs do not commit-changes automatically to the same branch
+
 permissions:
   # only prettier-fix needs write permission, for others read is enough
   contents: read
@@ -28,7 +33,7 @@ jobs:
       - name: Invoke the Prettier fix
         uses: WorkOfStan/prettier-fix@v1.1.3
         with:
-          commit-changes: true
+          commit-changes: ${{ github.event_name != 'schedule' }}
 
   super-linter:
     needs: prettier-fix
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f20e67..7630dbe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### `Security` in case of vulnerabilities
 
+## [1.0.2] - 2025-05-31
+
+fix: Fix pull request issues
+
+### Added
+
+- debug info (list of branches)
+- outputs `changed-files` with a comma-separated list of files changed by phpcbf
+
+### Fixed
+
+- Prevents issues with changing files in detached HEAD states (during pull request) by committing to the source branch of the pull request.
+
 ## [1.0.1] - 2025-02-09
 
 ### Added
@@ -38,6 +51,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - The new boolean input `stop-on-manual-fix` will cause the workflow to stop (fail) if manual fixes are necessary. (Also stops with an error if some manual fixes are required on top of automatic fixes.)
 - Cached `vendor/` (for a unique combination of php-version and composer.json) after a successful run in order to speed up further runs.
 
-[Unreleased]: https://github.com/WorkOfStan/phpcs-fix/compare/v1.0.1...HEAD?w=1
+[Unreleased]: https://github.com/WorkOfStan/phpcs-fix/compare/v1.0.2...HEAD?w=1
+[1.0.2]: https://github.com/WorkOfStan/phpcs-fix/compare/v1.0.1...v1.0.2?w=1
 [1.0.1]: https://github.com/WorkOfStan/phpcs-fix/compare/v1.0.0...v1.0.1?w=1
 [1.0.0]: https://github.com/WorkOfStan/phpcs-fix/releases/tag/v1.0.0
diff --git a/README.md b/README.md
index b5d0c51..2c99aec 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@ permissions:
 | -------------------- | ---------------------------------------------------------------------------------------------------------------------------- | ------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `commit-changes`     | If set to `true`, the action will commit changes to the current branch; otherwise a new branch is created for manual review. | Boolean | `false`                                                                                                                                                                                                                                                                                              |
 | `commit-message`     | Commit message to use if the action commits changes.                                                                         | String  | `"PHP Code Beautifier fixes applied automatically"`                                                                                                                                                                                                                                                  |
+| `debug`              | Enable extra debug output (list of branches).                                                                                | Boolean | `false`                                                                                                                                                                                                                                                                                              |
 | `extensions`         | Comma-delimited list of file extensions to be sniffed. Note: an empty value will disable checking.                           | String  | `"php"` (defaults to PHP only; other file types must be specified)                                                                                                                                                                                                                                   |
 | `ignore`             | Ignore files based on a comma-separated list of patterns matching files and/or directories.                                  | String  | `vendor/`                                                                                                                                                                                                                                                                                            |
 | `php-version`        | The PHP version to use, e.g. `"8.2"`.                                                                                        | String  | `"8.2"`                                                                                                                                                                                                                                                                                              |
@@ -47,9 +48,10 @@ permissions:
 
 ### Outputs
 
-| Output        | Description                         |
-| ------------- | ----------------------------------- |
-| `branch-name` | The name of the branch created/used |
+| Output          | Description                                     |
+| --------------- | ----------------------------------------------- |
+| `branch-name`   | The name of the branch created/used             |
+| `changed-files` | Comma-separated list of files changed by phpcbf |
 
 ## Caching Mechanism
 
diff --git a/action.yml b/action.yml
index 94f8082..3388c7f 100644
--- a/action.yml
+++ b/action.yml
@@ -20,6 +20,10 @@ inputs:
     description: "Commit message for the changes"
     type: string
     default: "PHP Code Beautifier fixes applied automatically"
+  debug:
+    description: "Enable extra debug output"
+    type: boolean
+    default: false
   # https://github.com/PHPCSStandards/PHP_CodeSniffer/wiki/Advanced-Usage#specifying-valid-file-extensions
   # By default, PHP_CodeSniffer will check any file it finds with a .inc, .php, .js or .css extension, although not all standards will actually check all these file types.
   # Empty value means no checking at all.
@@ -53,6 +57,8 @@ inputs:
 outputs:
   branch-name:
     description: "The branch where changes were committed"
+  changed-files:
+    description: "Comma-separated list of files changed by phpcbf"
 
 runs:
   using: "composite"
@@ -91,6 +97,19 @@ runs:
       run: composer require --dev squizlabs/php_codesniffer --prefer-dist --no-progress
       shell: bash
 
+    - name: Debug branches
+      if: ${{ inputs.debug == 'true' }}
+      run: |
+        echo "Debug 1. List All Local Branches"
+        git branch
+        echo "Debug 2. List All Remote Branches"
+        git branch -r
+        echo "Debug 3. List All References (Including Detached HEADs)"
+        git show-ref
+        echo "Debug 4. Check Your Current Checked-out Reference"
+        git status
+      shell: bash
+
     - name: Run PHP Code Sniffer
       id: phpcs
       run: |
@@ -113,10 +132,11 @@ runs:
 
         # Default the variable if no issues were found
         : "${HAS_ISSUES:=false}"
-        echo "HAS_ISSUES=$HAS_ISSUES" >> "$GITHUB_ENV"
+        echo "HAS_ISSUES=$HAS_ISSUES" >> $GITHUB_ENV
       shell: bash
 
     - name: Run PHP Code Beautifier if needed
+      id: fix
       if: env.HAS_ISSUES == 'true'
       run: |
         echo "phpcbf standard=${{ env.USE_STANDARD }}"
@@ -141,19 +161,34 @@ runs:
           echo "::warning title=No fixable errors were found by PHPCBF::No fixable errors were found by phpcbf: Manual fix necessary. Compare to the PHP Code Sniffer section above."
           if [ "${{ inputs.stop-on-manual-fix }}" = "true" ]; then
             # Indicates an error
+            # This sets the output named branch-name to an empty value. Which is useful to signal “no branch was created” in a way that downstream steps can detect reliably.
+            echo "branch-name=" >> $GITHUB_OUTPUT
+            echo "changed-files=" >> $GITHUB_OUTPUT
             exit 1
           else
             # Exiting gracefully
+            echo "branch-name=" >> $GITHUB_OUTPUT
+            echo "changed-files=" >> $GITHUB_OUTPUT
             exit 0
           fi
           # The rest of the script must still be within the same step to really stop the execution
         fi
 
-        git add .
+        # Only add changed files, safe for spaces
+        git status --porcelain | awk '{print $2}' | while IFS= read -r file; do git add "$file"; done
 
         # Determine branch name based on commit-changes input
-        if ${{ inputs.commit-changes }}; then
-          BRANCH_NAME=$(git branch --show-current)
+        if [ "${{ inputs.commit-changes }}" == "true" ]; then
+          BRANCH_NAME=$(git rev-parse --abbrev-ref HEAD 2>/dev/null)
+          if [ "$BRANCH_NAME" == "HEAD" ] || [ -z "$BRANCH_NAME" ]; then
+            echo "Detached HEAD detected. Checking out the PR branch directly from origin..."
+            # Fetch the PR branch tip and force a local branch matching the remote head
+            # Note: ${{ github.head_ref }} is a GitHub Actions built-in variable that contains the name of the source branch of a pull request (PR).
+            #   It is only available during workflow runs triggered by pull_request events.
+            git fetch origin ${{ github.head_ref }} --depth=1
+            git checkout -B "${{ github.head_ref }}" "origin/${{ github.head_ref }}"
+            BRANCH_NAME=$(git rev-parse --abbrev-ref HEAD)
+          fi
           NOTICE_MESSAGE="A PHPCBF commit was successfully added to the current branch: $BRANCH_NAME"
         else
           # name includes timestamp and short_hash
@@ -174,11 +209,23 @@ runs:
         COMMIT_URL=${{ github.server_url }}/${{ github.repository }}/commit/$(git rev-parse HEAD)
         echo "::notice title=View the PHPCBF commit::${COMMIT_URL}"
 
-        # Set branch name as output
+        # Set outputs
+        CHANGED_FILES=$(git diff-tree --no-commit-id --name-only -r HEAD | tr '\n' ',' | sed 's/,$//')
         echo "branch-name=$BRANCH_NAME" >> $GITHUB_OUTPUT
+        echo "changed-files=${CHANGED_FILES}" >> $GITHUB_OUTPUT
+        if [ "${{ inputs.debug }}" = "true" ]; then
+          echo "changed-files=${CHANGED_FILES}"
+        fi
 
         ## Stop with an error if some manual fixes are required on top of automatic fixes
         if [ "${{ inputs.stop-on-manual-fix }}" = "true" ] && [ "${MORE_ISSUES}" = "true" ]; then
           exit 1
         fi
       shell: bash
+
+    - name: No changes output (when no fix needed)
+      if: steps.fix.outcome == 'skipped'
+      run: |
+        echo "branch-name=" >> $GITHUB_OUTPUT
+        echo "changed-files=" >> $GITHUB_OUTPUT
+      shell: bash