{
  "schema_name": "stats_rounds_json",
  "schema_version": 1,
  "artifact": "stats/rounds.json",
  "format": "json",
  "description": "Global round structure, duration, frame, and outcome statistics. Per-map round statistics live in stats/maps.json.",
  "source_artifacts": [
    "round_index.parquet",
    "manifest.parquet",
    "match_index.parquet"
  ],
  "fields": [
    {
      "name": "schema_version",
      "json_type": "integer",
      "value": 1
    },
    {
      "name": "generated_at_utc",
      "json_type": "string"
    },
    {
      "name": "rounds",
      "json_type": "object"
    },
    {
      "name": "rounds_per_match",
      "json_type": "object"
    },
    {
      "name": "pov_completeness",
      "json_type": "object",
      "description": "Round and match-level POV-count completeness. The key release invariant is exactly 10 player POVs per released round."
    },
    {
      "name": "duration_s",
      "json_type": "object"
    },
    {
      "name": "frames",
      "json_type": "object"
    },
    {
      "name": "total_frames",
      "json_type": "object"
    },
    {
      "name": "round_winner_counts",
      "json_type": "object"
    },
    {
      "name": "round_end_reason_counts",
      "json_type": "object"
    }
  ],
  "window_definitions": {
    "round_lifecycle": "Canonical game round window from round_start_tick to round_stop_tick.",
    "alive_intersection": "Time interval where every released POV player in the round is alive simultaneously.",
    "clip_intersection": "Time interval where every released POV clip in the round has video frames available.",
    "clip_union": "Released POV sample frames for the round; exact all-POV total comes from manifest.frames."
  },
  "rounds_fields": [
    "total_rounds",
    "complete_10_pov_rounds",
    "incomplete_rounds",
    "complete_10_pov_rate"
  ],
  "duration_s_fields": [
    "round_lifecycle",
    "alive_intersection",
    "clip_intersection",
    "clip_union"
  ],
  "frames_fields": [
    "alive_intersection",
    "clip_intersection",
    "clip_union"
  ],
  "total_frames_fields": [
    "alive_intersection_frames_all_povs",
    "clip_intersection_frames_all_povs",
    "clip_union_frames_all_povs"
  ],
  "distribution_fields": [
    "count",
    "mean",
    "std",
    "min",
    "p05",
    "p25",
    "median",
    "p75",
    "p95",
    "max"
  ],
  "rounds_per_match_fields": [
    "count",
    "mean",
    "std",
    "min",
    "p05",
    "p25",
    "median",
    "p75",
    "p95",
    "max"
  ],
  "pov_completeness_fields": [
    "expected_povs_per_round",
    "round_pov_count_histogram",
    "povs_per_round",
    "per_match_mean_povs_per_round",
    "per_match_min_povs_per_round",
    "matches_all_rounds_complete_10_pov",
    "matches_with_any_incomplete_round"
  ],
  "pov_completeness_definitions": {
    "round_pov_count_histogram": "Histogram of round_index.pov_count over released rounds; keys are stringified integer POV counts.",
    "povs_per_round": "Distribution of round_index.pov_count over released rounds.",
    "per_match_mean_povs_per_round": "For each match-map demo, average round_index.pov_count over its released rounds, then report the distribution over demos.",
    "per_match_min_povs_per_round": "For each match-map demo, minimum round_index.pov_count over its released rounds, then report the distribution over demos."
  },
  "validation": [
    "rounds.total_rounds == row count of round_index.parquet",
    "rounds.complete_10_pov_rounds == rounds.total_rounds",
    "rounds.incomplete_rounds == 0",
    "rounds.complete_10_pov_rate == 1.0",
    "pov_completeness.expected_povs_per_round == 10",
    "pov_completeness.round_pov_count_histogram has only key 10 after release filtering",
    "pov_completeness.povs_per_round.min == 10",
    "pov_completeness.povs_per_round.max == 10",
    "pov_completeness.per_match_mean_povs_per_round.min == 10",
    "pov_completeness.per_match_mean_povs_per_round.max == 10",
    "pov_completeness.per_match_min_povs_per_round.min == 10",
    "pov_completeness.per_match_min_povs_per_round.max == 10",
    "pov_completeness.matches_all_rounds_complete_10_pov == row count of match_index.parquet",
    "pov_completeness.matches_with_any_incomplete_round == 0",
    "total_frames.alive_intersection_frames_all_povs == sum(round_index.alive_intersection_frames * round_index.pov_count)",
    "total_frames.clip_intersection_frames_all_povs == sum(round_index.clip_intersection_frames * round_index.pov_count)",
    "total_frames.clip_union_frames_all_povs == sum(manifest.frames)",
    "round_winner_counts keys include T, CT, and unknown",
    "duration_s.round_lifecycle is derived from round_stop_tick - round_start_tick",
    "duration_s.alive_intersection is derived from alive_intersection frames/ticks",
    "duration_s.clip_intersection is derived from clip_intersection frames/ticks",
    "duration_s.clip_union is derived from released sample frames grouped by round"
  ]
}