sort pbs downloaded files (#3496)

skyvern/forge/sdk/artifact/storage/s3.py

@@ -212,8 +212,15 @@ class S3Storage(BaseStorage):
 
         file_infos: list[FileInfo] = []
         for key in object_keys:
+            metadata = {}
+            modified_at: datetime | None = None
             # Get metadata (including checksum)
-            metadata = await self.async_client.get_file_metadata(key, log_exception=False)
+            try:
+                object_info = await self.async_client.get_object_info(key)
+                metadata = object_info.get("Metadata", {})
+                modified_at = object_info.get("LastModified")
+            except Exception:
+                LOG.exception("Object info retrieval failed", uri=key)
 
             # Create FileInfo object
             filename = os.path.basename(key)
@@ -228,6 +235,7 @@ class S3Storage(BaseStorage):
                 url=presigned_urls[0],
                 checksum=checksum,
                 filename=metadata.get("original_filename", filename) if metadata else filename,
+                modified_at=modified_at,
             )
             file_infos.append(file_info)
 

skyvern/forge/sdk/schemas/files.py

@@ -1,3 +1,5 @@
+from datetime import datetime
+
 from pydantic import BaseModel, Field
 
 
@@ -7,3 +9,4 @@ class FileInfo(BaseModel):
     url: str = Field(..., description="URL to access the file")
     checksum: str | None = Field(None, description="SHA-256 checksum of the file")
     filename: str | None = Field(None, description="Original filename")
+    modified_at: datetime | None = Field(None, description="Modified time of the file")

skyvern/webeye/schemas.py

@@ -91,6 +91,9 @@ class BrowserSessionResponse(BaseModel):
                     "Timeout getting downloaded files", browser_session_id=browser_session.persistent_browser_session_id
                 )
 
+            # Sort downloaded files by modified_at in descending order (newest first)
+            downloaded_files.sort(key=lambda x: x.modified_at or datetime.min, reverse=True)
+
         return cls(
             browser_session_id=browser_session.persistent_browser_session_id,
             organization_id=browser_session.organization_id,