diff --git a/pkg/cli/functions.go b/pkg/cli/functions.go
index 1f46093..ba12bbc 100644
--- a/pkg/cli/functions.go
+++ b/pkg/cli/functions.go
@@ -43,16 +43,16 @@ var AvailableTools = map[string]AvailableTool{
 
 Results are returned as JSON in the following format:
 {
-	"message": "success", // "success" if successful, or a different message indicating failure
+	"message": "success", // if successful, or a different message indicating failure
 	"result": [
-		{"name": "a_file", "type": "file", "length": 123},
-		{"name": "a_directory", "type": "dir", "length": 5},
+		{"name": "a_file", "type": "file", "size": 123},
+		{"name": "a_directory/", "type": "dir", "size": 11},
 		... // more files or directories
 	]
 }
 
-For type: file, length represents the size (in bytes) of the file.
-For type: dir, length represents the number of entries in that directory.`,
+For files, size represents the size (in bytes) of the file.
+For directories, size represents the number of entries in that directory.`,
 			Parameters: FunctionParameters{
 				Type: "object",
 				Properties: map[string]FunctionParameter{
@@ -205,19 +205,21 @@ func ReadDir(path string) string {
 	for _, f := range files {
 		info, _ := f.Info()
 
-		contentType := "file"
-		length := info.Size()
+		name := f.Name()
+		entryType := "file"
+		size := info.Size()
 
 		if info.IsDir() {
-			contentType = "dir"
+			name += "/"
+			entryType = "dir"
 			subdirfiles, _ := os.ReadDir(filepath.Join(".", path, info.Name()))
-			length = int64(len(subdirfiles))
+			size = int64(len(subdirfiles))
 		}
 
 		dirContents = append(dirContents, map[string]interface{}{
-			"name":   f.Name(),
-			"type":   contentType,
-			"length": length,
+			"name": name,
+			"type": entryType,
+			"size": size,
 		})
 	}