Open-EO · m-mohr · Jul 17, 2025
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -36,6 +36,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `filter_bbox`, `load_collection`, `load_stac`: Clarified that the bounding box is reprojected to the CRS of the spatial data cube dimensions if required.
 - `filter_spatial`: Clarified that masking is applied using the given geometries. [#469](https://github.com/Open-EO/openeo-processes/issues/469)
 - `load_collection` and `load_stac`: Clarified that scale and offset are not applied automatically when loading the data. [#503](https://github.com/Open-EO/openeo-processes/issues/503)
+- `load_uploaded_files` and `run_udf`: Clarify handling of file paths and added `FileNotFound` exception. [#461](https://github.com/Open-EO/openeo-processes/issues/461)
 - `mod`: Clarified behavior for y = 0
 - `sqrt`: Clarified that NaN is returned for negative numbers.
 - Clarify allowed `FeatureCollection` geometries in `load_collection`, `mask_polygon`, `apply_polygon`, and `load_stac` [#527](https://github.com/Open-EO/openeo-processes/issues/527)

diff --git a/proposals/export_workspace.json b/proposals/export_workspace.json
@@ -1,7 +1,7 @@
 {
     "id": "export_workspace",
-    "summary": "Export data to a cloud user workspace",
-    "description": "Exports the given processing results made available through a STAC resource (e.g., a STAC Collection) to the given user workspace. The STAC resource itself is exported with all STAC resources and assets underneath.",
+    "summary": "Export data to a cloud workspace",
+    "description": "Exports the given processing results made available through a STAC resource (e.g., a STAC Collection) to the given cloud workspace. The STAC resource itself is exported with all STAC resources and assets underneath.",
     "categories": [
         "export",
         "stac"
@@ -10,15 +10,15 @@
     "parameters": [
         {
             "name": "data",
-            "description": "The data to export to the user workspace as a STAC resource.",
+            "description": "The data to export to the cloud workspace as a STAC resource.",
             "schema": {
                 "type": "object",
                 "subtype": "stac"
             }
         },
         {
             "name": "workspace",
-            "description": "The identifier of the workspace to export to.",
+            "description": "The identifier of the cloud workspace to export to.",
             "schema": {
                 "type": "string",
                 "pattern": "^[\\w\\-\\.~]+$",

diff --git a/proposals/load_uploaded_files.json b/proposals/load_uploaded_files.json
@@ -1,55 +1,58 @@
-{
-    "id": "load_uploaded_files",
-    "summary": "Load files from the user workspace",
-    "description": "Loads one or more user-uploaded files from the server-side workspace of the authenticated user and returns them as a single data cube. The files must have been stored by the authenticated user on the back-end currently connected to.",
-    "categories": [
-        "cubes",
-        "import"
-    ],
-    "experimental": true,
-    "parameters": [
-        {
-            "name": "paths",
-            "description": "The files to read. Folders can't be specified, specify all files instead. An exception is thrown if a file can't be read.",
-            "schema": {
-                "type": "array",
-                "subtype": "file-paths",
-                "items": {
-                    "type": "string",
-                    "subtype": "file-path",
-                    "pattern": "^[^\r\n\\:'\"]+$"
-                }
-            }
-        },
-        {
-            "name": "format",
-            "description": "The file format to read from. It must be one of the values that the server reports as supported input file formats, which usually correspond to the short GDAL/OGR codes. If the format is not suitable for loading the data, a `FormatUnsuitable` exception will be thrown. This parameter is *case insensitive*.",
-            "schema": {
-                "type": "string",
-                "subtype": "input-format"
-            }
-        },
-        {
-            "name": "options",
-            "description": "The file format parameters to be used to read the files. Must correspond to the parameters that the server reports as supported parameters for the chosen `format`. The parameter names and valid values usually correspond to the GDAL/OGR format options.",
-            "schema": {
-                "type": "object",
-                "subtype": "input-format-options"
-            },
-            "default": {},
-            "optional": true
-        }
-    ],
-    "returns": {
-        "description": "A data cube for further processing.",
-        "schema": {
-            "type": "object",
-            "subtype": "datacube"
-        }
-    },
-    "exceptions": {
-        "FormatUnsuitable": {
-            "message": "Data can't be loaded with the requested input format."
-        }
-    }
-}
+{
+    "id": "load_uploaded_files",
+    "summary": "Load files from the user workspace",
+    "description": "Loads one or more user-uploaded files from the server-side workspace of the authenticated user and returns them as a single data cube. The files must have been stored by the authenticated user on the back-end currently connected to.",
+    "categories": [
+        "cubes",
+        "import"
+    ],
+    "experimental": true,
+    "parameters": [
+        {
+            "name": "paths",
+            "description": "The files to read. Folders can't be specified, specify all files instead. An exception is thrown if a file can't be read.\n\nFile paths are relative to the file workspace of the user. The workspace is the root folder, i.e. the paths `/folder/file.txt` and `folder/file.txt` and `./folder/file.txt` are all equivalent. Specifying paths outside of the workspace is not allowed and throws a `FileNotFound` exception.",
+            "schema": {
+                "type": "array",
+                "subtype": "file-paths",
+                "items": {
+                    "type": "string",
+                    "subtype": "file-path",
+                    "pattern": "^[^\r\n\\:'\"]+$"
+                }
+            }
+        },
+        {
+            "name": "format",
+            "description": "The file format to read from. It must be one of the values that the server reports as supported input file formats, which usually correspond to the short GDAL/OGR codes. If the format is not suitable for loading the data, a `FormatUnsuitable` exception will be thrown. This parameter is *case insensitive*.",
+            "schema": {
+                "type": "string",
+                "subtype": "input-format"
+            }
+        },
+        {
+            "name": "options",
+            "description": "The file format parameters to be used to read the files. Must correspond to the parameters that the server reports as supported parameters for the chosen `format`. The parameter names and valid values usually correspond to the GDAL/OGR format options.",
+            "schema": {
+                "type": "object",
+                "subtype": "input-format-options"
+            },
+            "default": {},
+            "optional": true
+        }
+    ],
+    "returns": {
+        "description": "A data cube for further processing.",
+        "schema": {
+            "type": "object",
+            "subtype": "datacube"
+        }
+    },
+    "exceptions": {
+        "FormatUnsuitable": {
+            "message": "Data can't be loaded with the requested input format."
+        },
+        "FileNotFound": {
+            "message": "The specified file does not exist."
+        }
+    }
+}
diff --git a/run_udf.json b/run_udf.json
@@ -38,7 +38,7 @@
                     "pattern": "^https?://"
                 },
                 {
-                    "description": "Path to a UDF uploaded to the server.",
+                    "description": "Path to a UDF uploaded to the server.\n\nFile paths are relative to the file workspace of the user. The workspace is the root folder, i.e. the paths `/folder/file.txt` and `folder/file.txt` and `./folder/file.txt` are all equivalent. Specifying paths outside of the workspace is not allowed and throws a `FileNotFound` exception.",
                     "type": "string",
                     "subtype": "file-path",
                     "pattern": "^[^\r\n\\:'\"]+$"
@@ -91,6 +91,9 @@
         },
         "InvalidVersion": {
             "message": "The specified UDF runtime version is not supported."
+        },
+        "FileNotFound": {
+            "message": "The specified file does not exist."
         }
     },
     "returns": {