Fix tests

Author: cte

src/shared/tools.ts

@@ -204,13 +204,13 @@ export const TOOL_DISPLAY_NAMES: Record<ToolName, string> = {
 
 export type { ToolGroup }
 
-// Define available tool groups
+// Define available tool groups.
 export const TOOL_GROUPS: Record<ToolGroup, ToolGroupConfig> = {
 	read: {
 		tools: ["read_file", "fetch_instructions", "search_files", "list_files", "list_code_definition_names"],
 	},
 	edit: {
-		tools: ["apply_diff", "write_to_file", "insert_content", "search_and_replace"],
+		tools: ["apply_diff", "write_to_file", "append_to_file", "insert_content", "search_and_replace"],
 	},
 	browser: {
 		tools: ["browser_action"],