diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for pms-domain-service
 
+## 0.1.7.0 -- 2026-07-05
+
+* Changed how resource URIs are handled.
+
 ## 0.1.6.0 -- 2026-06-15
 
 * Added pms-infra-agent-server: TCP server listen/accept functionality for AI agents.
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:            0.1.6.0
+version:            0.1.7.0
 
 -- A short (one-line) description of the package.
 synopsis:           pms-domain-service
diff --git a/src/PMS/Domain/Service/DS/State/Run/ResourcesRead.hs b/src/PMS/Domain/Service/DS/State/Run/ResourcesRead.hs
--- a/src/PMS/Domain/Service/DS/State/Run/ResourcesRead.hs
+++ b/src/PMS/Domain/Service/DS/State/Run/ResourcesRead.hs
@@ -20,7 +20,6 @@
 import qualified Data.Text.Lazy.Encoding as TLE
 import Network.URI
 import qualified Data.ByteString.Lazy as BL
-import Data.List 
 
 import qualified PMS.Domain.Model.DM.Type as DM
 import qualified PMS.Domain.Model.DM.Constant as DM
@@ -37,14 +36,11 @@
 
     let params = evDat^.DM.paramsMcpResourcesReadRequestData
         rawUri = params^.DM.uriMcpResourcesReadRequestDataParams
-        normUri = if "://" `isInfixOf` rawUri
-                  then rawUri
-                  else "file://" ++ rawUri
 
-    uri  <- getURI normUri
+    uri  <- getURI rawUri
     cont <- getUriContents uri
 
-    response normUri $ TL.unpack $ TLE.decodeUtf8 cont
+    response rawUri $ TL.unpack $ TLE.decodeUtf8 cont
    
     return noStateTransition
 
@@ -57,7 +53,7 @@
 
       getURI :: String -> AppContext URI
       getURI uriStr = case parseURI uriStr of
-        Nothing   -> throwError "Invalid URI, parse fail."
+        Nothing   -> throwError $ "Invalid URI, parse fail: " ++ uriStr
         Just uri  -> return uri
 
       response :: String -> String -> AppContext ()