{
  "schema": "gitea-agent.contract-preservation-inventory/v1",
  "owner": "jsfamily",
  "repository": "jarca-ledger-mcp",
  "issue": 12,
  "pull_request": 13,
  "contract_sha256": "6d86b591b022fcc722611bfec6d24e54a64216ab6f7c4098f357e25420218818",
  "review_id": 61,
  "reviewed_head": "5e721b0ddd648f3e80f341a3c304d1cc3ca47ee8",
  "preserved_semantics": [
    {
      "criterion": "N01-loan-balance-definition",
      "required": "Every valuation attached to a loan account explicitly records principal_only or principal_interest_fees; no writer or account-type transition may infer or bypass it.",
      "evidence": [
        "tests/test_account_valuation_edge_contracts.py",
        "tests/test_issue_12_review59_account.py"
      ]
    },
    {
      "criterion": "C05-current-import",
      "required": "Loan cache and import operations remain successful without creating definition-less history, and late evidence never rolls back newer current cache.",
      "evidence": [
        "test_dated_loan_create_and_historical_update_preserve_current_cache_without_valuations",
        "test_loan_import_preserves_transactions_and_current_cache_without_valuation_candidate"
      ]
    },
    {
      "criterion": "C13-read-only-and-no-partial-write",
      "required": "Validation failure changes neither account state nor append-only valuation history.",
      "evidence": [
        "test_bank_to_loan_conversion_rejects_existing_undefined_valuation_without_mutation"
      ]
    },
    {
      "criterion": "compatibility",
      "required": "A non-loan account with no valuation history may still be converted to loan; non-loan candidate insertion and replay are unchanged.",
      "evidence": [
        "test_bank_to_loan_conversion_without_valuations_remains_allowed",
        "test_non_loan_candidate_still_succeeds_and_reuses_idempotently"
      ]
    }
  ],
  "excluded_scope": [
    "No inferred or automatic liability-definition migration.",
    "No schema change.",
    "No changes to snapshot, reconciliation, dashboard, authentication, or menu behavior.",
    "No merge, Issue close, or release operation."
  ]
}