{
  "dataset_version": "2026-07-20-mimo-v11-final-r7",
  "canonical_manifests": {
    "sample": {
      "schema_version": "avrtg.sample.v1",
      "files": [
        "samples_manifest_train.jsonl",
        "samples_manifest_val.jsonl",
        "samples_manifest_test.jsonl"
      ]
    },
    "query": {
      "schema_version": "avrtg.query.v1",
      "files": [
        "queries_manifest_train.jsonl",
        "queries_manifest_val.jsonl",
        "queries_manifest_test.jsonl"
      ],
      "model_target": "total_gt = union(audio_gt, visual_gt)",
      "diagnostic_fields": [
        "audio_gt",
        "visual_gt",
        "av_overlap_gt"
      ]
    }
  },
  "prompt": {
    "policy_id": "avrtg.temporal_grounding.union.v1",
    "system": "You are an audio-visual temporal grounding model.",
    "user_template": "<video>\nLocalize every time interval where the following event is present\nin the audio stream, the visual stream, or both:\n\n{query}\n\nReturn JSON inside <answer> tags. Use seconds relative to t=0 of the full video.\nReturn all matching intervals in chronological order, merging overlapping or contiguous intervals.\n\nRequired output format:\n<answer>{{\"intervals\":[[start_second,end_second], ...]}}</answer>",
    "thinking_trace": false
  },
  "model_output": {
    "content_type": "strict_json_inside_answer_tags",
    "template": "<answer>{\"intervals\":[[start_second,end_second], ...]}</answer>",
    "top_level_keys": [
      "intervals"
    ]
  },
  "derived_manifests": {
    "grpo": {
      "files": [
        "swift_rlvr_train.jsonl",
        "swift_rlvr_val.jsonl",
        "swift_rlvr_test.jsonl"
      ],
      "solution_intervals_source": "query.total_gt",
      "diagnostic_metadata_not_exposed_in_prompt": true
    }
  }
}