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tasks_absolute_needle/100s/anomaly_detection/metadata.json

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tasks_absolute_needle/100s/anomaly_localization/metadata.json

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tasks_absolute_needle/100s/antecedent/metadata.json

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tasks_absolute_needle/100s/counting/metadata.json

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tasks_absolute_needle/100s/existence/metadata.json

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tasks_absolute_needle/100s/multi_hop/metadata.json

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tasks_absolute_needle/100s/ordering/metadata.json

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tasks_absolute_needle/100s/state_query/metadata.json

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tasks_absolute_needle/3600s/anomaly_localization/metadata.json

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+  "answer_type": "time_range",
+  "context_length_samples": 360000,
+  "context_length_seconds": 3600.0,
+  "difficulty_config": {
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+    "needle_position": "random",
+    "needle_length_distribution": "uniform",
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+      10000
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+    "distractor_count": 0,
+    "background_purity": "pure",
+    "min_annotation_coverage": 0.6,
+    "task_specific": {
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+      "min_gap_ratio": 0.02,
+      "min_gap_max_samples": 100,
+      "min_distractors": 1,
+      "max_distractors": 3
+    }
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+  "generation_stats": {
+    "task": "anomaly_localization",
+    "context_length_samples": 360000,
+    "context_length_seconds": 3600.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/anomaly_localization/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/anomaly_localization/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/anomaly_localization/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T01:04:13.982109"
+}

tasks_absolute_needle/3600s/antecedent/metadata.json

@@ -0,0 +1,53 @@
+{
+  "task_name": "antecedent",
+  "answer_type": "category",
+  "context_length_samples": 360000,
+  "context_length_seconds": 3600.0,
+  "difficulty_config": {
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+    "needle_position": "random",
+    "needle_length_distribution": "uniform",
+    "needle_length_ratio_range": [
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+      0.1
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+      10000
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+    "distractor_count": 0,
+    "background_purity": "any",
+    "min_annotation_coverage": 0.6,
+    "task_specific": {
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+      "margin_max_samples": 100,
+      "background_mode": "low_activity",
+      "adjacency_gap_samples": 10,
+      "use_transition_probs": false
+    }
+  },
+  "generation_stats": {
+    "task": "antecedent",
+    "context_length_samples": 360000,
+    "context_length_seconds": 3600.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/antecedent/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/antecedent/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/antecedent/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T00:19:22.553379"
+}

tasks_absolute_needle/3600s/comparison/metadata.json

@@ -0,0 +1,56 @@
+{
+  "task_name": "comparison",
+  "answer_type": "time_range",
+  "context_length_samples": 360000,
+  "context_length_seconds": 3600.0,
+  "difficulty_config": {
+    "context_length_samples": 360000,
+    "needle_position": "random",
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+    "needle_length_ratio_range": [
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+      10000
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+    "distractor_count": 0,
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+      "min_gap_ratio": 0.02,
+      "min_gap_max_samples": 100,
+      "min_bouts": 2,
+      "max_bouts": 4,
+      "min_duration_diff_ratio": 0.02,
+      "min_duration_diff_max_ms": 2000
+    }
+  },
+  "generation_stats": {
+    "task": "comparison",
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+    "context_length_seconds": 3600.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/comparison/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/comparison/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/comparison/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T00:28:47.660743"
+}

tasks_absolute_needle/3600s/counting/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "counting",
+  "answer_type": "integer",
+  "context_length_samples": 360000,
+  "context_length_seconds": 3600.0,
+  "difficulty_config": {
+    "context_length_samples": 360000,
+    "needle_position": "random",
+    "needle_length_distribution": "uniform",
+    "needle_length_ratio_range": [
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+      0.1
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+      10000
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+    "distractor_density": "none",
+    "distractor_count": 0,
+    "background_purity": "any",
+    "min_annotation_coverage": 0.6,
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+      "min_gap_ratio": 0.02,
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+      "min_bouts": 1,
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+    }
+  },
+  "generation_stats": {
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+    "context_length_samples": 360000,
+    "context_length_seconds": 3600.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/counting/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/counting/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/counting/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-23T23:55:43.102120"
+}

tasks_absolute_needle/3600s/existence/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "existence",
+  "answer_type": "boolean",
+  "context_length_samples": 360000,
+  "context_length_seconds": 3600.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      10000
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+    "distractor_density": "none",
+    "distractor_count": 0,
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+      "min_distractors": 1,
+      "max_distractors": 3
+    }
+  },
+  "generation_stats": {
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+    "context_length_seconds": 3600.0,
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+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/existence/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/existence/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/existence/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-23T23:35:36.030821"
+}

tasks_absolute_needle/3600s/localization/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "localization",
+  "answer_type": "time_range",
+  "context_length_samples": 360000,
+  "context_length_seconds": 3600.0,
+  "difficulty_config": {
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+    "needle_position": "random",
+    "needle_length_distribution": "uniform",
+    "needle_length_ratio_range": [
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+      0.1
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+      10000
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+    "distractor_density": "none",
+    "distractor_count": 0,
+    "background_purity": "any",
+    "min_annotation_coverage": 0.6,
+    "task_specific": {
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+      "min_gap_ratio": 0.02,
+      "min_gap_max_samples": 100,
+      "min_distractors": 1,
+      "max_distractors": 3
+    }
+  },
+  "generation_stats": {
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+    "context_length_seconds": 3600.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/localization/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/localization/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/localization/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-23T23:44:39.556344"
+}

tasks_absolute_needle/3600s/multi_hop/metadata.json

@@ -0,0 +1,59 @@
+{
+  "task_name": "multi_hop",
+  "answer_type": "time_range",
+  "context_length_samples": 360000,
+  "context_length_seconds": 3600.0,
+  "difficulty_config": {
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+    "needle_position": "random",
+    "needle_length_distribution": "uniform",
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+      0.1
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+    "needle_length_ms_range": [
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+      10000
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+    "distractor_density": "none",
+    "distractor_count": 0,
+    "background_purity": "any",
+    "min_annotation_coverage": 0.6,
+    "task_specific": {
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+      "margin_max_samples": 100,
+      "min_gap_ratio": 0.02,
+      "min_gap_max_samples": 100,
+      "k_distribution": [
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+        0.4,
+        0.2
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+      "direction_mode": "random",
+      "n_distractors_opposite": 0
+    }
+  },
+  "generation_stats": {
+    "task": "multi_hop",
+    "context_length_samples": 360000,
+    "context_length_seconds": 3600.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/multi_hop/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/multi_hop/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/multi_hop/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T00:38:48.398112"
+}

tasks_absolute_needle/3600s/ordering/metadata.json

@@ -0,0 +1,53 @@
+{
+  "task_name": "ordering",
+  "answer_type": "boolean",
+  "context_length_samples": 360000,
+  "context_length_seconds": 3600.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      "min_gap_ratio": 0.02,
+      "min_gap_max_samples": 100,
+      "question_format": "category"
+    }
+  },
+  "generation_stats": {
+    "task": "ordering",
+    "context_length_samples": 360000,
+    "context_length_seconds": 3600.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/ordering/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/ordering/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/ordering/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T00:04:02.264695"
+}

tasks_absolute_needle/3600s/state_query/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "state_query",
+  "answer_type": "category",
+  "context_length_samples": 360000,
+  "context_length_seconds": 3600.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      10000
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+    "distractor_density": "none",
+    "distractor_count": 0,
+    "background_purity": "pure",
+    "min_annotation_coverage": 0.6,
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+      "max_global_states": 5,
+      "min_state_duration_ratio": 0.2,
+      "min_state_duration_max_samples": 500,
+      "position_mode": "random",
+      "boundary_margin_frac": 0.1
+    }
+  },
+  "generation_stats": {
+    "task": "state_query",
+    "context_length_samples": 360000,
+    "context_length_seconds": 3600.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/state_query/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/state_query/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/3600s/state_query/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T00:09:36.608990"
+}

tasks_absolute_needle/7200s/anomaly_detection/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "anomaly_detection",
+  "answer_type": "boolean",
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+  "context_length_seconds": 7200.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      10000
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+    "distractor_density": "none",
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+    "task_specific": {
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+      "margin_max_samples": 100,
+      "min_gap_ratio": 0.02,
+      "min_gap_max_samples": 100,
+      "min_distractors": 1,
+      "max_distractors": 3
+    }
+  },
+  "generation_stats": {
+    "task": "anomaly_detection",
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+    "context_length_seconds": 7200.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/anomaly_detection/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/anomaly_detection/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/anomaly_detection/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T02:49:48.900674"
+}

tasks_absolute_needle/7200s/anomaly_localization/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "anomaly_localization",
+  "answer_type": "time_range",
+  "context_length_samples": 720000,
+  "context_length_seconds": 7200.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      10000
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+    "distractor_density": "none",
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+    "task_specific": {
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+      "margin_max_samples": 100,
+      "min_gap_ratio": 0.02,
+      "min_gap_max_samples": 100,
+      "min_distractors": 1,
+      "max_distractors": 3
+    }
+  },
+  "generation_stats": {
+    "task": "anomaly_localization",
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+    "context_length_seconds": 7200.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/anomaly_localization/train/data.parquet"
+      },
+      "val": {
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+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/anomaly_localization/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/anomaly_localization/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T03:05:55.568390"
+}

tasks_absolute_needle/7200s/antecedent/metadata.json

@@ -0,0 +1,53 @@
+{
+  "task_name": "antecedent",
+  "answer_type": "category",
+  "context_length_samples": 720000,
+  "context_length_seconds": 7200.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      10000
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+    "distractor_density": "none",
+    "distractor_count": 0,
+    "background_purity": "any",
+    "min_annotation_coverage": 0.6,
+    "task_specific": {
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+      "margin_max_samples": 100,
+      "background_mode": "low_activity",
+      "adjacency_gap_samples": 10,
+      "use_transition_probs": false
+    }
+  },
+  "generation_stats": {
+    "task": "antecedent",
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+    "context_length_seconds": 7200.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/antecedent/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/antecedent/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/antecedent/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T02:08:28.821706"
+}

tasks_absolute_needle/7200s/comparison/metadata.json

@@ -0,0 +1,56 @@
+{
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+  "difficulty_config": {
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+      10000
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+    "distractor_count": 0,
+    "background_purity": "any",
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+      "min_duration_diff_ratio": 0.02,
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+  "generation_stats": {
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+    "context_length_seconds": 7200.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/comparison/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/comparison/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/comparison/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T02:21:33.764414"
+}

tasks_absolute_needle/7200s/counting/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "counting",
+  "answer_type": "integer",
+  "context_length_samples": 720000,
+  "context_length_seconds": 7200.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+    "distractor_count": 0,
+    "background_purity": "any",
+    "min_annotation_coverage": 0.6,
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+  "generation_stats": {
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+    "context_length_seconds": 7200.0,
+    "splits": {
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+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/counting/train/data.parquet"
+      },
+      "val": {
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+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/counting/val/data.parquet"
+      },
+      "test": {
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+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/counting/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T01:40:03.971226"
+}

tasks_absolute_needle/7200s/existence/metadata.json

@@ -0,0 +1,54 @@
+{
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+  "answer_type": "boolean",
+  "context_length_samples": 720000,
+  "context_length_seconds": 7200.0,
+  "difficulty_config": {
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+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/existence/train/data.parquet"
+      },
+      "val": {
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+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/existence/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/existence/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T01:15:15.237230"
+}

tasks_absolute_needle/7200s/localization/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "localization",
+  "answer_type": "time_range",
+  "context_length_samples": 720000,
+  "context_length_seconds": 7200.0,
+  "difficulty_config": {
+    "context_length_samples": 720000,
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+  },
+  "generation_stats": {
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+    "context_length_seconds": 7200.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/localization/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/localization/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/localization/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T01:26:47.678775"
+}

tasks_absolute_needle/7200s/multi_hop/metadata.json

@@ -0,0 +1,59 @@
+{
+  "task_name": "multi_hop",
+  "answer_type": "time_range",
+  "context_length_samples": 720000,
+  "context_length_seconds": 7200.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      10000
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+    "distractor_density": "none",
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+      "k_distribution": [
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+        0.4,
+        0.2
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+      "direction_mode": "random",
+      "n_distractors_opposite": 0
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+  },
+  "generation_stats": {
+    "task": "multi_hop",
+    "context_length_samples": 720000,
+    "context_length_seconds": 7200.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/multi_hop/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/multi_hop/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/multi_hop/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T02:33:29.265486"
+}

tasks_absolute_needle/7200s/ordering/metadata.json

@@ -0,0 +1,53 @@
+{
+  "task_name": "ordering",
+  "answer_type": "boolean",
+  "context_length_samples": 720000,
+  "context_length_seconds": 7200.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+    "background_purity": "any",
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+      "min_gap_ratio": 0.02,
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+      "question_format": "category"
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+  },
+  "generation_stats": {
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+    "context_length_seconds": 7200.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/ordering/train/data.parquet"
+      },
+      "val": {
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+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/ordering/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/ordering/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T01:51:39.533679"
+}

tasks_absolute_needle/7200s/state_query/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "state_query",
+  "answer_type": "category",
+  "context_length_samples": 720000,
+  "context_length_seconds": 7200.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+    "distractor_count": 0,
+    "background_purity": "pure",
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+      "min_state_duration_ratio": 0.2,
+      "min_state_duration_max_samples": 500,
+      "position_mode": "random",
+      "boundary_margin_frac": 0.1
+    }
+  },
+  "generation_stats": {
+    "task": "state_query",
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+    "context_length_seconds": 7200.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/state_query/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/state_query/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/7200s/state_query/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-24T01:59:31.810197"
+}

tasks_absolute_needle/900s/anomaly_detection/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "anomaly_detection",
+  "answer_type": "boolean",
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+  "difficulty_config": {
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+    "needle_position": "random",
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+      "min_distractors": 1,
+      "max_distractors": 3
+    }
+  },
+  "generation_stats": {
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+    "context_length_seconds": 900.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/anomaly_detection/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/anomaly_detection/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/anomaly_detection/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-23T23:15:58.581452"
+}

tasks_absolute_needle/900s/anomaly_localization/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "anomaly_localization",
+  "answer_type": "time_range",
+  "context_length_samples": 90000,
+  "context_length_seconds": 900.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      10000
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+    "task_specific": {
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+      "min_distractors": 1,
+      "max_distractors": 3
+    }
+  },
+  "generation_stats": {
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+    "context_length_seconds": 900.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/anomaly_localization/train/data.parquet"
+      },
+      "val": {
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+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/anomaly_localization/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/anomaly_localization/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-23T23:26:47.546718"
+}

tasks_absolute_needle/900s/antecedent/metadata.json

@@ -0,0 +1,53 @@
+{
+  "task_name": "antecedent",
+  "answer_type": "category",
+  "context_length_samples": 90000,
+  "context_length_seconds": 900.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+    "task_specific": {
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+      "margin_max_samples": 100,
+      "background_mode": "low_activity",
+      "adjacency_gap_samples": 10,
+      "use_transition_probs": false
+    }
+  },
+  "generation_stats": {
+    "task": "antecedent",
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+    "context_length_seconds": 900.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/antecedent/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/antecedent/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/antecedent/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-23T22:47:05.234602"
+}

tasks_absolute_needle/900s/comparison/metadata.json

@@ -0,0 +1,56 @@
+{
+  "task_name": "comparison",
+  "answer_type": "time_range",
+  "context_length_samples": 90000,
+  "context_length_seconds": 900.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      10000
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+    "distractor_density": "none",
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+      "margin_max_samples": 100,
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+      "min_bouts": 2,
+      "max_bouts": 4,
+      "min_duration_diff_ratio": 0.02,
+      "min_duration_diff_max_ms": 2000
+    }
+  },
+  "generation_stats": {
+    "task": "comparison",
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+    "context_length_seconds": 900.0,
+    "splits": {
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/comparison/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/comparison/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/comparison/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-23T22:56:32.228440"
+}

tasks_absolute_needle/900s/counting/metadata.json

@@ -0,0 +1,54 @@
+{
+  "task_name": "counting",
+  "answer_type": "integer",
+  "context_length_samples": 90000,
+  "context_length_seconds": 900.0,
+  "difficulty_config": {
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+    "needle_position": "random",
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+      10000
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+    "distractor_density": "none",
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+    "task_specific": {
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+      "margin_max_samples": 100,
+      "min_gap_ratio": 0.02,
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+    }
+  },
+  "generation_stats": {
+    "task": "counting",
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+    "context_length_seconds": 900.0,
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+        "valid": 1000,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/counting/train/data.parquet"
+      },
+      "val": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/counting/val/data.parquet"
+      },
+      "test": {
+        "generated": 150,
+        "valid": 150,
+        "path": "data/capture24/ts_haystack/tasks_absolute_needle/900s/counting/test/data.parquet"
+      }
+    }
+  },
+  "generation_timestamp": "2026-04-23T22:29:33.563055"
+}

tasks_absolute_needle/900s/existence/metadata.json

@@ -0,0 +1,54 @@
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+}

tasks_absolute_needle/900s/localization/metadata.json

@@ -0,0 +1,54 @@
+{
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+}

tasks_absolute_needle/900s/multi_hop/metadata.json

@@ -0,0 +1,59 @@
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+  "generation_timestamp": "2026-04-23T23:04:50.889855"
+}

tasks_absolute_needle/900s/ordering/metadata.json

@@ -0,0 +1,53 @@
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+}

tasks_absolute_needle/900s/state_query/metadata.json

@@ -0,0 +1,54 @@
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+  "generation_timestamp": "2026-04-23T22:41:23.203163"
+}

tasks_absolute_needle/metadata.json

@@ -0,0 +1,1129 @@
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