diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
new file mode 100644
index 0000000000..fe363ef650
--- /dev/null
+++ b/.github/workflows/pre-commit.yml
@@ -0,0 +1,43 @@
+name: pre-commit
+
+on:
+  pull_request:
+  push:
+    branches: [master]
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - uses: ./.github/actions/setup-build
+      with:
+        ghc: "9.2.3"
+        os: ${{ runner.os }}
+        shorten-hls: false
+
+    - name: "Install stylish-haskell"
+      run: |
+        cabal install stylish-haskell
+        echo "${HOME}/.cabal/bin" >> $GITHUB_PATH
+
+    - name: "Check stylish-haskell is available"
+      run: |
+        echo $(which stylish-haskell)
+
+    - name: Compiled deps cache
+      id: stylish-haskell-compiled-cache
+      uses: actions/cache@v2
+      env:
+        cache-name: stylish-haskell-compiled-cache
+      with:
+        path: ${{ env.CABAL_PKGS_DIR }}
+        key:  ${{ inputs.cache-prefix }}${{ env.cache-name }}-${{ inputs.os }}-${{ inputs.ghc }}-${{ env.INDEX_STATE }}-${{ hashFiles('cabal.project.freeze') }}
+        restore-keys: |
+              ${{ inputs.cache-prefix }}${{ env.cache-name }}-${{ inputs.os }}-${{ inputs.ghc }}-${{ env.INDEX_STATE }}-
+              ${{ inputs.cache-prefix }}${{ env.cache-name }}-${{ inputs.os }}-${{ inputs.ghc }}-
+              ${{ inputs.cache-prefix }}${{ env.cache-name }}-${{ inputs.os }}-
+
+    - uses: actions/setup-python@v3
+    - uses: pre-commit/action@v3.0.0
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b2bac28fcd..ba541e83e3 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -24,7 +24,7 @@
           {
             "id": "mixed-line-ending",
             "args": ["--fix", "lf"],
-            "exclude": "test/testdata/.*CRLF*.hs$"
+            "exclude": "test/testdata/.*CRLF.*?\\.hs$"
           }
        ]
     }
diff --git a/plugins/hls-stan-plugin/src/Ide/Plugin/Stan.hs b/plugins/hls-stan-plugin/src/Ide/Plugin/Stan.hs
index 0d3607a6b3..7eb46e05b0 100644
--- a/plugins/hls-stan-plugin/src/Ide/Plugin/Stan.hs
+++ b/plugins/hls-stan-plugin/src/Ide/Plugin/Stan.hs
@@ -6,8 +6,8 @@ import           Control.Monad.IO.Class         (liftIO)
 import           Control.Monad.Trans.Class      (lift)
 import           Control.Monad.Trans.Maybe      (MaybeT (MaybeT), runMaybeT)
 import           Data.Foldable                  (toList)
-import qualified Data.HashMap.Strict            as HM
 import           Data.Hashable                  (Hashable)
+import qualified Data.HashMap.Strict            as HM
 import qualified Data.Map                       as Map
 import           Data.Maybe                     (fromJust, mapMaybe)
 import qualified Data.Text                      as T
@@ -24,9 +24,9 @@ import           Development.IDE                (Action, FileDiagnostic,
                                                  getFilesOfInterestUntracked,
                                                  hscEnv, msrModSummary,
                                                  tmrTypechecked, use, uses)
+import           Development.IDE.Core.Rules     (getHieFile,
+                                                 getSourceFileSource)
 import           Development.IDE.Core.RuleTypes (HieAstResult (..))
-import           Development.IDE.Core.Rules     (getSourceFileSource,
-                                                 getHieFile)
 import qualified Development.IDE.Core.Shake     as Shake
 import           Development.IDE.GHC.Compat     (HieASTs (HieASTs),
                                                  RealSrcSpan (..), mkHieFile',