diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for pms-domain-service
 
+## 0.1.1.0 -- 2026-01-31
+
+* Add file system pms-make-dir tools.
+
 ## 0.1.0.0 -- 2025-12-31
 
 * Add file system tools.
diff --git a/pms-domain-service.cabal b/pms-domain-service.cabal
--- a/pms-domain-service.cabal
+++ b/pms-domain-service.cabal
@@ -20,7 +20,7 @@
 -- PVP summary:     +-+------- breaking API changes
 --                  | | +----- non-breaking API additions
 --                  | | | +--- code changes with no API change
-version:            0.1.0.0
+version:            0.1.1.0
 
 -- A short (one-line) description of the package.
 synopsis:           pms-domain-service
diff --git a/src/PMS/Domain/Service/DS/State/Run/ToolsCall.hs b/src/PMS/Domain/Service/DS/State/Run/ToolsCall.hs
--- a/src/PMS/Domain/Service/DS/State/Run/ToolsCall.hs
+++ b/src/PMS/Domain/Service/DS/State/Run/ToolsCall.hs
@@ -64,6 +64,7 @@
       go dat "serial-write"   = serialWriteCommand dat
       go dat "serial-message" = serialMessageCommand dat
       go dat "pms-list-dir"   = fileSystemListDirCommand dat
+      go dat "pms-make-dir"   = fileSystemMakeDirCommand dat
       go dat "pms-read-file"  = fileSystemReadFileCommand dat
       go dat "pms-write-file" = fileSystemWriteFileCommand dat
       go dat x = do
@@ -346,6 +347,20 @@
 
   cmdQ <- view DM.fileSystemQueueDomainData <$> lift ask
   liftIO $ STM.atomically $ STM.writeTQueue cmdQ $ DM.ListDirFileSystemCommand cmdDat
+
+
+-- |
+--
+fileSystemMakeDirCommand :: DM.McpToolsCallRequestData -> AppContext ()
+fileSystemMakeDirCommand dat = do
+  let cmdDat = DM.MakeDirFileSystemCommandData {
+                DM._jsonrpcMakeDirFileSystemCommandData   = dat^.DM.jsonrpcMcpToolsCallRequestData
+              , DM._argumentsMakeDirFileSystemCommandData = dat^.DM.paramsMcpToolsCallRequestData^.DM.argumentsMcpToolsCallRequestDataParams
+              }
+
+  cmdQ <- view DM.fileSystemQueueDomainData <$> lift ask
+  liftIO $ STM.atomically $ STM.writeTQueue cmdQ $ DM.MakeDirFileSystemCommand cmdDat
+
 
 -- |
 --