metadata: 2026-07-07 revised taxonomy (task_type format vocabulary multiple_choice/yes_no/short_answer/free_form; score_type incl. none; re-verified protocol evidence; repaired prompt provenance)

metadata.json

@@ -9,7 +9,7 @@
       "modalities": [
         "single_image_start"
       ],
-      "task_type": "multiple_choice_vqa",
+      "task_type": "multiple_choice",
       "score_type": "llm_extract",
       "score_protocol": {
         "reference": "vlmevalkit@vlmeval/dataset/image_mcq.py:249-324 (ImageMCQDataset.evaluate_heuristic) -> vlmevalkit@vlmeval/dataset/utils/multiple_choice.py:475-508 mcq_vanilla_eval: can_infer rule prefetch, then GPT extractor (extract_answer_from_item @vlmeval/dataset/utils/multiple_choice.py:359-407) maps verbose output to a letter, rule-compare vs GT; SEEDBench_IMG registered @vlmeval/dataset/image_mcq.py:74. Cross-check: lmms-eval@lmms_eval/tasks/seedbench/utils.py:17-34 grades by first-character letter compare (pure rule)",