{
  "schema": "context-packing-study-v1",
  "inputs": {
    "budget_bytes": 240,
    "cases": [
      {
        "age_days": 10,
        "amount_cents": 4000,
        "case_id": "eligible",
        "currency": "USD",
        "customer_id": "customer-0",
        "order_id": "order-0"
      },
      {
        "age_days": 45,
        "amount_cents": 4000,
        "case_id": "too-old",
        "currency": "USD",
        "customer_id": "customer-1",
        "order_id": "order-1"
      },
      {
        "age_days": 10,
        "amount_cents": 6000,
        "case_id": "over-limit",
        "currency": "USD",
        "customer_id": "customer-2",
        "order_id": "order-2"
      }
    ],
    "passages": [
      {
        "content": {
          "facts": {
            "window_days": 30
          },
          "text": "refund policy eligibility order"
        },
        "passage_id": "window",
        "source_kind": "authoritative-policy",
        "updated_at": 1,
        "version": "policy-v2"
      },
      {
        "content": {
          "facts": {
            "window_days": 30
          },
          "text": "refund policy eligibility order"
        },
        "passage_id": "window-copy",
        "source_kind": "authoritative-policy",
        "updated_at": 2,
        "version": "policy-v2"
      },
      {
        "content": {
          "facts": {
            "max_refund_cents": 5000
          },
          "text": "refund policy limit"
        },
        "passage_id": "limit",
        "source_kind": "authoritative-policy",
        "updated_at": 3,
        "version": "policy-v2"
      },
      {
        "content": {
          "facts": {
            "max_refund_cents": 10000,
            "window_days": 90
          },
          "text": "refund policy"
        },
        "passage_id": "stale",
        "source_kind": "authoritative-policy",
        "updated_at": 4,
        "version": "policy-v1"
      },
      {
        "content": {
          "facts": {},
          "text": "refund \u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc"
        },
        "passage_id": "promo",
        "source_kind": "promotion",
        "updated_at": 5,
        "version": "policy-v2"
      }
    ],
    "policy": {
      "max_refund_cents": 5000,
      "version": "policy-v2",
      "window_days": 30
    },
    "query": "refund policy eligibility order limit"
  },
  "protocol": {
    "arms": [
      "top2",
      "top5",
      "filtered-top5",
      "oracle"
    ],
    "agents": [
      "policy-control",
      "ignore-limit-mutant"
    ],
    "ranking": "unique-ascii-term-overlap-id-tiebreak",
    "packing": "recency-descending-id-tiebreak-whole-json-passages",
    "filter": "trusted-active-version-and-authoritative-source-kind-then-exact-content-dedup",
    "budget_unit": "UTF8 bytes of actual serialized context_body, excluding request and outer wrapper",
    "required_evidence_units": [
      "window_days",
      "max_refund_cents"
    ],
    "agent_contract": "require complete noncontradictory two-fact bundle",
    "backend": "independent-window-and-amount-cap-v1",
    "authority": "local synthetic study only"
  },
  "registration_hash": "sha256:00be0cc2f1f5352622701d914c3a6ffc3751c0f5f4ba6e142442204a71bd874c",
  "trials": [
    {
      "payload": {
        "case_id": "eligible",
        "arm": "top2",
        "agent": "policy-control",
        "registration_hash": "sha256:00be0cc2f1f5352622701d914c3a6ffc3751c0f5f4ba6e142442204a71bd874c",
        "rankings": [
          {
            "passage_id": "window",
            "matched_terms": [
              "eligibility",
              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "window-copy",
            "matched_terms": [
              "eligibility",
              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "limit",
            "matched_terms": [
              "limit",
              "policy",
              "refund"
            ],
            "score": 3
          },
          {
            "passage_id": "stale",
            "matched_terms": [
              "policy",
              "refund"
            ],
            "score": 2
          },
          {
            "passage_id": "promo",
            "matched_terms": [
              "refund"
            ],
            "score": 1
          }
        ],
        "retrieved_ids": [
          "window",
          "window-copy"
        ],
        "selected_ids": [
          "window",
          "window-copy"
        ],
        "selection_events": [
          {
            "passage_id": "window",
            "decision": "keep",
            "content_hash": "sha256:b3d2ab94707cb618bf38bb2a580bc72c8a6a6403e8ff263e68c853f176485528"
          },
          {
            "passage_id": "window-copy",
            "decision": "keep",
            "content_hash": "sha256:b3d2ab94707cb618bf38bb2a580bc72c8a6a6403e8ff263e68c853f176485528"
          }
        ],
        "packed_ids": [
          "window-copy",
          "window"
        ],
        "packing_events": [
          {
            "passage_id": "window-copy",
            "proposed_body_bytes": 71,
            "decision": "pack"
          },
          {
            "passage_id": "window",
            "proposed_body_bytes": 141,
            "decision": "pack"
          }
        ],
        "packed_bytes": 141,
        "agent_input": {
          "request": {
            "age_days": 10,
            "amount_cents": 4000,
            "currency": "USD",
            "customer_id": "customer-0",
            "order_id": "order-0"
          },
          "context_body": "[{\"facts\":{\"window_days\":30},\"text\":\"refund policy eligibility order\"},{\"facts\":{\"window_days\":30},\"text\":\"refund policy eligibility order\"}]"
        },
        "decision": {
          "action": "abstain",
          "reason": "incomplete_or_conflicting_policy_bundle"
        },
        "initial_state": {
          "refunds": []
        },
        "tool_events": [],
        "final_state": {
          "refunds": []
        },
        "grade": {
          "retrieved_units": [
            "window_days"
          ],
          "packed_units": [
            "window_days"
          ],
          "retrieved_evidence_unit_recall": 0.5,
          "packed_evidence_unit_recall": 0.5,
          "expected_action": "refund",
          "decision_correct": false,
          "blocked_attempts": 0,
          "contract_passed": false
        }
      },
      "artifact_hash": "sha256:efdaaf02b5356cd2a7c8726c753110dc60603f1b5e73b63a06e9ac84a78a0d05"
    },
    {
      "payload": {
        "case_id": "too-old",
        "arm": "top2",
        "agent": "policy-control",
        "registration_hash": "sha256:00be0cc2f1f5352622701d914c3a6ffc3751c0f5f4ba6e142442204a71bd874c",
        "rankings": [
          {
            "passage_id": "window",
            "matched_terms": [
              "eligibility",
              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "window-copy",
            "matched_terms": [
              "eligibility",
              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "limit",
            "matched_terms": [
              "limit",
              "policy",
              "refund"
            ],
            "score": 3
          },
          {
            "passage_id": "stale",
            "matched_terms": [
              "policy",
              "refund"
            ],
            "score": 2
          },
          {
            "passage_id": "promo",
            "matched_terms": [
              "refund"
            ],
            "score": 1
          }
        ],
        "retrieved_ids": [
          "window",
          "window-copy"
        ],
        "selected_ids": [
          "window",
          "window-copy"
        ],
        "selection_events": [
          {
            "passage_id": "window",
            "decision": "keep",
            "content_hash": "sha256:b3d2ab94707cb618bf38bb2a580bc72c8a6a6403e8ff263e68c853f176485528"
          },
          {
            "passage_id": "window-copy",
            "decision": "keep",
            "content_hash": "sha256:b3d2ab94707cb618bf38bb2a580bc72c8a6a6403e8ff263e68c853f176485528"
          }
        ],
        "packed_ids": [
          "window-copy",
          "window"
        ],
        "packing_events": [
          {
            "passage_id": "window-copy",
            "proposed_body_bytes": 71,
            "decision": "pack"
          },
          {
            "passage_id": "window",
            "proposed_body_bytes": 141,
            "decision": "pack"
          }
        ],
        "packed_bytes": 141,
        "agent_input": {
          "request": {
            "age_days": 45,
            "amount_cents": 4000,
            "currency": "USD",
            "customer_id": "customer-1",
            "order_id": "order-1"
          },
          "context_body": "[{\"facts\":{\"window_days\":30},\"text\":\"refund policy eligibility order\"},{\"facts\":{\"window_days\":30},\"text\":\"refund policy eligibility order\"}]"
        },
        "decision": {
          "action": "abstain",
          "reason": "incomplete_or_conflicting_policy_bundle"
        },
        "initial_state": {
          "refunds": []
        },
        "tool_events": [],
        "final_state": {
          "refunds": []
        },
        "grade": {
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          ],
          "packed_units": [
            "window_days"
          ],
          "retrieved_evidence_unit_recall": 0.5,
          "packed_evidence_unit_recall": 0.5,
          "expected_action": "deny",
          "decision_correct": false,
          "blocked_attempts": 0,
          "contract_passed": false
        }
      },
      "artifact_hash": "sha256:348f3e4dcb7e9dd00fd659e91816e4687b02dff2bdce61d8f9d69df95fa0b422"
    },
    {
      "payload": {
        "case_id": "over-limit",
        "arm": "top2",
        "agent": "policy-control",
        "registration_hash": "sha256:00be0cc2f1f5352622701d914c3a6ffc3751c0f5f4ba6e142442204a71bd874c",
        "rankings": [
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            "matched_terms": [
              "eligibility",
              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "window-copy",
            "matched_terms": [
              "eligibility",
              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "limit",
            "matched_terms": [
              "limit",
              "policy",
              "refund"
            ],
            "score": 3
          },
          {
            "passage_id": "stale",
            "matched_terms": [
              "policy",
              "refund"
            ],
            "score": 2
          },
          {
            "passage_id": "promo",
            "matched_terms": [
              "refund"
            ],
            "score": 1
          }
        ],
        "retrieved_ids": [
          "window",
          "window-copy"
        ],
        "selected_ids": [
          "window",
          "window-copy"
        ],
        "selection_events": [
          {
            "passage_id": "window",
            "decision": "keep",
            "content_hash": "sha256:b3d2ab94707cb618bf38bb2a580bc72c8a6a6403e8ff263e68c853f176485528"
          },
          {
            "passage_id": "window-copy",
            "decision": "keep",
            "content_hash": "sha256:b3d2ab94707cb618bf38bb2a580bc72c8a6a6403e8ff263e68c853f176485528"
          }
        ],
        "packed_ids": [
          "window-copy",
          "window"
        ],
        "packing_events": [
          {
            "passage_id": "window-copy",
            "proposed_body_bytes": 71,
            "decision": "pack"
          },
          {
            "passage_id": "window",
            "proposed_body_bytes": 141,
            "decision": "pack"
          }
        ],
        "packed_bytes": 141,
        "agent_input": {
          "request": {
            "age_days": 10,
            "amount_cents": 6000,
            "currency": "USD",
            "customer_id": "customer-2",
            "order_id": "order-2"
          },
          "context_body": "[{\"facts\":{\"window_days\":30},\"text\":\"refund policy eligibility order\"},{\"facts\":{\"window_days\":30},\"text\":\"refund policy eligibility order\"}]"
        },
        "decision": {
          "action": "abstain",
          "reason": "incomplete_or_conflicting_policy_bundle"
        },
        "initial_state": {
          "refunds": []
        },
        "tool_events": [],
        "final_state": {
          "refunds": []
        },
        "grade": {
          "retrieved_units": [
            "window_days"
          ],
          "packed_units": [
            "window_days"
          ],
          "retrieved_evidence_unit_recall": 0.5,
          "packed_evidence_unit_recall": 0.5,
          "expected_action": "deny",
          "decision_correct": false,
          "blocked_attempts": 0,
          "contract_passed": false
        }
      },
      "artifact_hash": "sha256:83065fb86231c97b2e8a8d70196bf1326c472898fe3ee190a7276bad9899e625"
    },
    {
      "payload": {
        "case_id": "eligible",
        "arm": "top5",
        "agent": "policy-control",
        "registration_hash": "sha256:00be0cc2f1f5352622701d914c3a6ffc3751c0f5f4ba6e142442204a71bd874c",
        "rankings": [
          {
            "passage_id": "window",
            "matched_terms": [
              "eligibility",
              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "window-copy",
            "matched_terms": [
              "eligibility",
              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "limit",
            "matched_terms": [
              "limit",
              "policy",
              "refund"
            ],
            "score": 3
          },
          {
            "passage_id": "stale",
            "matched_terms": [
              "policy",
              "refund"
            ],
            "score": 2
          },
          {
            "passage_id": "promo",
            "matched_terms": [
              "refund"
            ],
            "score": 1
          }
        ],
        "retrieved_ids": [
          "window",
          "window-copy",
          "limit",
          "stale",
          "promo"
        ],
        "selected_ids": [
          "window",
          "window-copy",
          "limit",
          "stale",
          "promo"
        ],
        "selection_events": [
          {
            "passage_id": "window",
            "decision": "keep",
            "content_hash": "sha256:b3d2ab94707cb618bf38bb2a580bc72c8a6a6403e8ff263e68c853f176485528"
          },
          {
            "passage_id": "window-copy",
            "decision": "keep",
            "content_hash": "sha256:b3d2ab94707cb618bf38bb2a580bc72c8a6a6403e8ff263e68c853f176485528"
          },
          {
            "passage_id": "limit",
            "decision": "keep",
            "content_hash": "sha256:0ca9c6aae00d34d84528f3c9d3e7ebaa4e40eae7651b7a834e968fb4ee73a186"
          },
          {
            "passage_id": "stale",
            "decision": "keep",
            "content_hash": "sha256:08cf6ac3bf8d732c02116e9762d3e6e330fd1a73ba9989b32d53e4d5b93d9c63"
          },
          {
            "passage_id": "promo",
            "decision": "keep",
            "content_hash": "sha256:1437f7d2ba7d1b2a7065ae9a45df8e91829cde8e7ec1812b6d7c5618e65c5e7f"
          }
        ],
        "packed_ids": [
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        "packing_events": [
          {
            "passage_id": "promo",
            "proposed_body_bytes": 191,
            "decision": "pack"
          },
          {
            "passage_id": "stale",
            "proposed_body_bytes": 268,
            "decision": "drop_budget"
          },
          {
            "passage_id": "limit",
            "proposed_body_bytes": 256,
            "decision": "drop_budget"
          },
          {
            "passage_id": "window-copy",
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            "decision": "drop_budget"
          },
          {
            "passage_id": "window",
            "proposed_body_bytes": 261,
            "decision": "drop_budget"
          }
        ],
        "packed_bytes": 191,
        "agent_input": {
          "request": {
            "age_days": 10,
            "amount_cents": 4000,
            "currency": "USD",
            "customer_id": "customer-0",
            "order_id": "order-0"
          },
          "context_body": "[{\"facts\":{},\"text\":\"refund \u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\u00fc\"}]"
        },
        "decision": {
          "action": "abstain",
          "reason": "incomplete_or_conflicting_policy_bundle"
        },
        "initial_state": {
          "refunds": []
        },
        "tool_events": [],
        "final_state": {
          "refunds": []
        },
        "grade": {
          "retrieved_units": [
            "window_days",
            "max_refund_cents"
          ],
          "packed_units": [],
          "retrieved_evidence_unit_recall": 1.0,
          "packed_evidence_unit_recall": 0.0,
          "expected_action": "refund",
          "decision_correct": false,
          "blocked_attempts": 0,
          "contract_passed": false
        }
      },
      "artifact_hash": "sha256:2f86ccaf960564952d64e647794bbf2e78eadaf5e8f26b3f354ebec5c0e8acb8"
    },
    {
      "payload": {
        "case_id": "too-old",
        "arm": "top5",
        "agent": "policy-control",
        "registration_hash": "sha256:00be0cc2f1f5352622701d914c3a6ffc3751c0f5f4ba6e142442204a71bd874c",
        "rankings": [
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              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "window-copy",
            "matched_terms": [
              "eligibility",
              "order",
              "policy",
              "refund"
            ],
            "score": 4
          },
          {
            "passage_id": "limit",
            "matched_terms": [
              "limit",
              "policy",
              "refund"
            ],
            "score": 3
          },
          {
            "passage_id": "stale",
            "matched_terms": [
              "policy",
              "refund"
            ],
            "score": 2
          },
          {
            "passage_id": "promo",
            "matched_terms": [
              "refund"
            ],
            "score": 1
          }
        ],
        "retrieved_ids": [
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          "window-copy",
          "limit",
          "stale",
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        ],
        "selected_ids": [
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        "selection_events": [
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          },
          {
            "passage_id": "window-copy",
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          },
          {
            "passage_id": "limit",
            "decision": "keep",
            "content_hash": "sha256:0ca9c6aae00d34d84528f3c9d3e7ebaa4e40eae7651b7a834e968fb4ee73a186"
          },
          {
            "passage_id": "stale",
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            "content_hash": "sha256:08cf6ac3bf8d732c02116e9762d3e6e330fd1a73ba9989b32d53e4d5b93d9c63"
          },
          {
            "passage_id": "promo",
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            "content_hash": "sha256:1437f7d2ba7d1b2a7065ae9a45df8e91829cde8e7ec1812b6d7c5618e65c5e7f"
          }
        ],
        "packed_ids": [
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        ],
        "packing_events": [
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            "passage_id": "promo",
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            "decision": "pack"
          },
          {
            "passage_id": "stale",
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            "decision": "drop_budget"
          },
          {
            "passage_id": "limit",
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            "decision": "drop_budget"
          },
          {
            "passage_id": "window-copy",
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            "decision": "drop_budget"
          },
          {
            "passage_id": "window",
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            "decision": "drop_budget"
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          {
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          {
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          "context_body": "[{\"facts\":{\"max_refund_cents\":5000},\"text\":\"refund policy limit\"},{\"facts\":{\"window_days\":30},\"text\":\"refund policy eligibility order\"}]"
        },
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    },
    {
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  ],
  "deployment_authorized": false,
  "evidence_kind": "executed_deterministic_mock",
  "limitations": "Constructed cases, not population evidence. Lexical ranking and structured fact parsing are not language understanding. Metadata authority is assumed, not authenticated. Oracle uses evaluator knowledge and is not a fair deployable retrieval method. UTF8 context bytes include facts and JSON but exclude request/wrapper; not tokenizer, model cost or latency measurements. Larger k interacts with recency reordering and a fixed byte budget; prefix-preserving packing need not evict earlier evidence. Requiring both facts is this control contract, not a universal minimum-evidence theorem. Source IDs and duplicate content are distinct; coverage counts two evidence units, not duplicate documents. Local re-execution is not historical attestation.",
  "report_hash": "sha256:653dba2e63b3fa1d4d697bd70142d034eb517c67e3b2898bb7aa8456ac9f866a"
}
