make task completion message for next gen models terse

src/core/prompts/system-prompt/tools/attempt_completion.ts

@@ -77,12 +77,12 @@ const NATIVE_NEXT_GEN: ClineToolSpec = {
 	id,
 	name: "attempt_completion",
 	description:
-		"Once you've completed the user's task, use this tool to present the final result to the user, including a brief and very short (1-2 paragraph) summary of the task and what was done to resolve it. Provide the basics, hitting the highlights, but do delve into the specifics. You should only call this tool when you have completed all tasks in the task_progress list, and completed all changes that are necessary to satisfy the user's request. You should not provide the contents of the task_progress list in the result parameter, it must be included in the task_progress parameter.",
+		"Once you've completed the user's task, use this tool to present the final result to the user, if applicable. Otherwise, just a final reply. You should only call this tool when you have completed all tasks in the task_progress list, and completed all changes that are necessary to satisfy the user's request. You should not provide the contents of the task_progress list in the result parameter, it must be included in the task_progress parameter.",
 	parameters: [
 		{
 			name: "result",
 			required: true,
-			instruction: "A clear, brief and very short (1-2 paragraph) summary of the final result of the task.",
+			instruction: "A final message, possibly even just a word or two. Keep it snappy.",
 		},
 		{
 			name: "command",