{
  "id": "json-structural-diff",
  "name": "JSON Structural Patch Generator",
  "description": "Generate deterministic RFC 6902 add/remove/replace operations between supplied JSON values, with recursive object comparison, atomic arrays, escaped pointers and source/target digests. Does not infer moves or produce a minimal edit script.",
  "category": "document-assurance",
  "priceUsd": "0.005",
  "pricingStatus": "proposed-unverified",
  "pricing": {
    "unit": "one successful operation call",
    "proposedNominalUsd": "0.005",
    "sixDecimalTokenBaseUnits": "5000",
    "subscription": false,
    "includesPayerWalletOrNetworkFees": false,
    "liveQuoteVerified": false,
    "condition": "Actual SDK challenge is authoritative only within the caller's explicit authorization; configured six-decimal token peg is an operator assertion, not a conversion guarantee."
  },
  "intents": [
    "Generate JSON Patch from two document versions",
    "Find changed nested fields and produce machine-applicable operations"
  ],
  "whenToUse": [
    "Generate JSON Patch from two document versions",
    "Find changed nested fields and produce machine-applicable operations"
  ],
  "whenNotToUse": [
    "Minimal array edit scripts, move detection, or arbitrary-precision JSON numbers",
    "Applying changes to remote files or APIs"
  ],
  "capabilities": [
    "RFC 6902 add/remove/replace output with RFC 6901 pointers",
    "Arrays replaced atomically; object property order ignored",
    "SHA-256 of deterministic sorted-object serialization; not RFC 8785"
  ],
  "related": [
    "json-patch",
    "json-three-way-merge"
  ],
  "limits": {
    "inputBytes": 100000,
    "outputBytes": 400000,
    "jsonNodes": 8000,
    "depth": 20,
    "findings": 200,
    "patchOperations": 500,
    "pointerCodeUnits": 2048,
    "patchPayloadBytes": 380000,
    "arrayPolicy": "atomic",
    "digestProfile": "sorted-object-json-utf8-v1"
  },
  "errorCodes": [
    "INPUT_LIMIT",
    "OUTPUT_LIMIT",
    "COMPLEXITY_LIMIT",
    "UNSAFE_KEY",
    "INVALID_UNICODE",
    "INVALID_NUMBER",
    "PATCH_LIMIT",
    "POINTER_LIMIT"
  ],
  "requirementsProfile": {
    "format": "declared-requirements-v1",
    "facts": {
      "execution.suppliedCode": false,
      "execution.remoteMutation": false,
      "execution.llmInference": false,
      "execution.paidMcp": false,
      "verification.semanticTruth": false,
      "verification.sourceAuthenticity": false,
      "verification.liveVulnerabilities": false,
      "numbers.arbitraryPrecisionJson": false,
      "numbers.model": "ieee754-binary64",
      "privacy.requestBodyPersisted": false,
      "execution.deterministic": true,
      "execution.networkAccess": false,
      "privacy.resultBodyPersisted": false,
      "payment.x402": true,
      "payment.mpp": true,
      "operation.id": "json-structural-diff",
      "operation.category": "document-assurance",
      "limit.httpRequestBytes": 131072,
      "limit.requestBytes": 100000,
      "limit.responseBytes": 524288,
      "limit.resultBytes": 400000,
      "limit.jsonDepth": 20,
      "limit.jsonNodes": 8000,
      "jsonDiff.profile": "object-recursive-array-atomic-diff-v1",
      "jsonDiff.arraysAtomic": true,
      "jsonDiff.minimalPatch": false,
      "jsonDigest.rfc8785": false
    },
    "unknownPolicy": "Undeclared requirements are unknown, never compatible. Matching declared facts does not establish semantic fit or input validity.",
    "preflight": "/preflight"
  },
  "documentation": "/reference/tools/json-structural-diff.md",
  "serviceContract": "/reference/services/json-structural-diff.json",
  "errors": [
    {
      "status": 400,
      "meaning": "Malformed JSON, missing/invalid idempotency key, or payment identifier mismatch",
      "retry": "Correct the request before payment"
    },
    {
      "status": 402,
      "meaning": "Payment challenge or rejected payment",
      "retry": "Use official protocol SDK; inspect payment outcome before another payment"
    },
    {
      "status": 409,
      "meaning": "Idempotency conflict, duplicate proof, or PAYMENT_UNCERTAIN",
      "retry": "Keep original key, body, and proof; reconcile uncertainty with operator; never blindly repay"
    },
    {
      "status": 413,
      "meaning": "Input or generated output too large",
      "retry": "Reduce input; no payment attempted for validation failure"
    },
    {
      "status": 415,
      "meaning": "Unsupported media type or compression",
      "retry": "Send uncompressed application/json"
    },
    {
      "status": 422,
      "meaning": "Schema or service-specific semantic validation failure",
      "retry": "Correct input using returned error code; no payment attempted"
    },
    {
      "status": 429,
      "meaning": "Request/payment-attempt rate exceeded",
      "retry": "Wait for rate limit window; preserve existing payment identity"
    },
    {
      "status": 503,
      "meaning": "Payment configuration/provider/state unavailable, or live DNS preparation failed before settlement",
      "retry": "Check readiness; DNS preparation failures may retry the identical key/body/credential only; uncertainty requires reconciliation"
    }
  ],
  "numericPrecision": "JavaScript IEEE-754 numbers; use strings for large integer IDs/exact decimals where the schema accepts strings. No lossless numeric parsing.",
  "paymentWorkflow": {
    "discoveryOnly": false,
    "supportedProtocols": [
      "x402",
      "mpp"
    ],
    "x402": {
      "credentialHeader": "PAYMENT-SIGNATURE",
      "challengeHeader": "PAYMENT-REQUIRED",
      "receiptHeader": "PAYMENT-RESPONSE",
      "version": 2,
      "scheme": "exact",
      "paymentIdentifier": "payment-identifier extension MUST equal the HTTP Idempotency-Key",
      "sdk": "@x402/core with @x402/evm"
    },
    "mpp": {
      "supported": true,
      "credentialHeader": "Authorization",
      "challengeHeader": "WWW-Authenticate",
      "receiptHeader": "Payment-Receipt",
      "method": "tempo",
      "intent": "charge",
      "sdk": "mppx",
      "tokenDecimals": 6
    },
    "steps": [
      "Check configured readiness and the exact service schema",
      "Generate a fresh random Idempotency-Key for this operation; never use a discovery probe fixture for purchases",
      "Send valid input without a credential to obtain the official protocol challenge",
      "Use the official SDK and authorized wallet to fulfill the challenge",
      "Retry only with identical key, body, protocol and credential",
      "On PAYMENT_UNCERTAIN stop and request operator reconciliation; never blindly pay again"
    ],
    "versionedRetries": "Request fingerprint includes service release version. Retries across a version upgrade can conflict; coordinate upgrades outside the 24-hour replay window and reconcile pending attempts.",
    "docs": "/llms.txt"
  },
  "method": "POST",
  "paths": {
    "x402": "/v1/x402/json-structural-diff",
    "mpp": "/v1/mpp/json-structural-diff"
  },
  "inputSchema": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "type": "object",
    "properties": {
      "before": {
        "$ref": "#/$defs/__schema0"
      },
      "after": {
        "$ref": "#/$defs/__schema0"
      }
    },
    "required": [
      "before",
      "after"
    ],
    "additionalProperties": false,
    "$defs": {
      "__schema0": {
        "anyOf": [
          {
            "type": "string"
          },
          {
            "type": "number"
          },
          {
            "type": "boolean"
          },
          {
            "type": "null"
          },
          {
            "type": "array",
            "items": {
              "$ref": "#/$defs/__schema0"
            }
          },
          {
            "type": "object",
            "propertyNames": {
              "type": "string"
            },
            "additionalProperties": {
              "$ref": "#/$defs/__schema0"
            }
          }
        ]
      }
    }
  },
  "outputSchema": {
    "type": "object",
    "required": [
      "operation",
      "version",
      "result",
      "provenance"
    ],
    "properties": {
      "operation": {
        "const": "json-structural-diff",
        "type": "string"
      },
      "version": {
        "const": "0.29.0",
        "type": "string"
      },
      "result": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "profile": {
            "type": "string",
            "const": "object-recursive-array-atomic-diff-v1"
          },
          "equal": {
            "type": "boolean"
          },
          "patch": {
            "type": "array",
            "items": {
              "anyOf": [
                {
                  "type": "object",
                  "properties": {
                    "op": {
                      "type": "string",
                      "enum": [
                        "add",
                        "replace"
                      ]
                    },
                    "path": {
                      "type": "string"
                    },
                    "value": {
                      "$ref": "#/properties/result/$defs/__schema0"
                    }
                  },
                  "required": [
                    "op",
                    "path",
                    "value"
                  ],
                  "additionalProperties": false
                },
                {
                  "type": "object",
                  "properties": {
                    "op": {
                      "type": "string",
                      "const": "remove"
                    },
                    "path": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "op",
                    "path"
                  ],
                  "additionalProperties": false
                }
              ]
            }
          },
          "operationCount": {
            "type": "integer",
            "minimum": 0,
            "maximum": 9007199254740991
          },
          "sourceSha256": {
            "type": "string",
            "pattern": "^[a-fA-F0-9]{64}$"
          },
          "targetSha256": {
            "type": "string",
            "pattern": "^[a-fA-F0-9]{64}$"
          },
          "digestEncoding": {
            "type": "string",
            "const": "sorted-object-json-utf8-v1"
          }
        },
        "required": [
          "profile",
          "equal",
          "patch",
          "operationCount",
          "sourceSha256",
          "targetSha256",
          "digestEncoding"
        ],
        "additionalProperties": false,
        "$defs": {
          "__schema0": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "number"
              },
              {
                "type": "boolean"
              },
              {
                "type": "null"
              },
              {
                "type": "array",
                "items": {
                  "$ref": "#/properties/result/$defs/__schema0"
                }
              },
              {
                "type": "object",
                "propertyNames": {
                  "type": "string"
                },
                "additionalProperties": {
                  "$ref": "#/properties/result/$defs/__schema0"
                }
              }
            ]
          }
        }
      },
      "provenance": {
        "type": "object",
        "required": [
          "inputSha256",
          "outputSha256",
          "deterministic",
          "externalRequests"
        ],
        "properties": {
          "inputSha256": {
            "type": "string",
            "pattern": "^[a-f0-9]{64}$"
          },
          "outputSha256": {
            "type": "string",
            "pattern": "^[a-f0-9]{64}$"
          },
          "deterministic": {
            "const": true
          },
          "externalRequests": {
            "const": 0
          }
        }
      }
    },
    "additionalProperties": false
  },
  "exampleInput": {
    "before": {
      "title": "Draft",
      "tags": [
        "review"
      ],
      "obsolete": true
    },
    "after": {
      "title": "Ready",
      "tags": [
        "review",
        "approved"
      ]
    }
  },
  "exampleResponse": {
    "operation": "json-structural-diff",
    "version": "0.29.0",
    "result": {
      "profile": "object-recursive-array-atomic-diff-v1",
      "equal": false,
      "patch": [
        {
          "op": "remove",
          "path": "/obsolete"
        },
        {
          "op": "replace",
          "path": "/tags",
          "value": [
            "review",
            "approved"
          ]
        },
        {
          "op": "replace",
          "path": "/title",
          "value": "Ready"
        }
      ],
      "operationCount": 3,
      "sourceSha256": "0a34630d562483cee11e48ba6adaeeecceaf6017794835b64d48fd7d81595735",
      "targetSha256": "d5d727ab6f9598418bfa4c3bfbb83f294f791a046f9a3455baba3cd580c12fa3",
      "digestEncoding": "sorted-object-json-utf8-v1"
    },
    "provenance": {
      "inputSha256": "1bcf3fa1e1786afa4a3db326acc4a66d1738e5c7d742fac8c26b5393c8ae43ea",
      "outputSha256": "f105bd87aeb5589d1c84771c0f279373ded003e50d3fd532672e65b7756edc86",
      "deterministic": true,
      "externalRequests": 0
    }
  },
  "requiredHeaders": {
    "Content-Type": "application/json",
    "Idempotency-Key": "random 16–128 character operation identifier"
  },
  "fixedExample": "/reference/examples/json-structural-diff.json",
  "execution": {
    "deterministic": true,
    "externalRequests": 0,
    "maxExternalRequests": 0,
    "resultSnapshotPersisted": false,
    "fixedExampleIsIllustrativeSnapshot": false,
    "requiresPayment": true,
    "supportsMcpExecution": false
  },
  "releaseSnapshot": {
    "format": "static-release-reference-v1",
    "sourceVersion": "0.29.0",
    "sourceRegistrySha256": "a2b5ec09bf6c38b9d2879d746a4fded374f5928b445377b0270ef6aa8e6cac65",
    "generatedAt": "2026-10-06T15:38:00Z",
    "releaseAcceptance": "not-verified-by-generator",
    "runtimeReadiness": "not-evaluated",
    "livePaymentsVerified": false,
    "indexingVerified": false,
    "apiOrigin": null,
    "notice": "Build-time release reference. Runtime readiness, deployment, payment settlement and external indexing are not evaluated here. Prices are proposed; this file cannot authorize execution or payment."
  }
}