{
  "schema_version": "1.0.0",
  "status": "adopted_design_policy",
  "objective": "Preserve reusable technical value while limiting storage, duplication and redistribution risk.",
  "permanent": [
    "stable_ids_and_relations",
    "normalized_parameters_and_units",
    "reviewed_rules_and_procedures",
    "source_metadata_versions_and_hashes",
    "moderated_case_outcomes",
    "tool_and_engine_versions"
  ],
  "compact": [
    "minimum_source_fragments",
    "page_and_section_locators",
    "answer_projections",
    "content_hashes",
    "regenerable_search_indexes"
  ],
  "heavy_documents": {
    "default": "reference_or_external_storage",
    "canonical_copy_allowed_when": [
      "redistribution_is_permitted",
      "the_source_is_operationally_important",
      "one_canonical_copy_prevents_repeated_download_and_extraction"
    ],
    "rules": [
      "never_duplicate_the_same_version",
      "retain_source_url_version_and_hash",
      "separate_permitted_public_texts_from_licensed_standards",
      "remove_processing_temporaries",
      "use_embeddings_only_after_measured_retrieval_benefit"
    ]
  },
  "cache": {
    "not_a_system_of_record": true,
    "key_fields": ["tool_id", "tool_version", "normalized_input_hash", "source_version_set"],
    "invalidation": ["tool_version_change", "source_content_hash_change", "review_status_change"],
    "policies": ["ttl", "lru", "per_client_limits"]
  },
  "public_response": {
    "minimum_necessary_fields_only": true,
    "bulk_dataset_export": false,
    "internal_compute_cost_exposed": false,
    "source_ids_and_confidence_exposed": true
  }
}