Stable multi-key record sorting
WHEN TO USE: Order up to 1,000 records reproducibly using 1–10 nested JSON Pointer keys. Null and missing values tie and follow each key’s nulls setting independently of direction. Remaining ascending type order is boolean, number, string, array, object; booleans use false before true, strings use UTF-16 code units, arrays/objects compare deterministic JSON text. Equal keys preserve input order. Returns original indexes. Maximum 100,000 characters and depth 32.
structured · Operation ID: records-sort
Choose this operation when
- Order records by bounded nested keys with explicit null ordering.
Outside this profile
- Locale-aware collation or external database sorting.
Exact release references
Static JSON contract · Markdown reference · Fixed example response
Complete input schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"records": {
"maxItems": 1000,
"type": "array",
"items": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"$ref": "#/$defs/__schema0"
}
}
},
"keys": {
"minItems": 1,
"maxItems": 10,
"type": "array",
"items": {
"type": "object",
"properties": {
"path": {
"type": "string",
"maxLength": 2048,
"description": "RFC 6901 JSON string pointer; empty string selects the root. URI fragments are not accepted."
},
"direction": {
"default": "asc",
"type": "string",
"enum": [
"asc",
"desc"
]
},
"nulls": {
"default": "last",
"type": "string",
"enum": [
"first",
"last"
]
}
},
"required": [
"path"
],
"additionalProperties": false
}
}
},
"required": [
"records",
"keys"
],
"additionalProperties": false,
"$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"
}
}
]
}
}
}
Complete output-envelope schema
{
"type": "object",
"required": [
"operation",
"version",
"result",
"provenance"
],
"properties": {
"operation": {
"const": "records-sort",
"type": "string"
},
"version": {
"const": "0.29.0",
"type": "string"
},
"result": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"records": {
"maxItems": 1000,
"type": "array",
"items": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"$ref": "#/properties/result/$defs/__schema0"
}
}
},
"indexes": {
"maxItems": 1000,
"type": "array",
"items": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
}
},
"count": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
}
},
"required": [
"records",
"indexes",
"count"
],
"additionalProperties": false,
"$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
}
Fixed example
One accepted fixed example, not a custom-input trial. No operation runs when this static page is requested.
Example input
{
"records": [
{
"team": "sales",
"score": 8
},
{
"team": "sales",
"score": 10
},
{
"team": "support",
"score": 9
}
],
"keys": [
{
"path": "/team"
},
{
"path": "/score",
"direction": "desc"
}
]
}
Example response
{
"operation": "records-sort",
"version": "0.29.0",
"result": {
"records": [
{
"team": "sales",
"score": 10
},
{
"team": "sales",
"score": 8
},
{
"team": "support",
"score": 9
}
],
"indexes": [
1,
0,
2
],
"count": 3
},
"provenance": {
"inputSha256": "01b4f1978ec7ceca60d6e6696d86754d1c04b927f6b3a91ee2f8d03c4608a264",
"outputSha256": "34c945ba894ca0a225e9a6204478c8d26dc2e9a9ab6dd6653a46f16b52f645ab",
"deterministic": true,
"externalRequests": 0
}
}
Bounds and precision
JavaScript IEEE-754 numbers; use strings for large integer IDs/exact decimals where the schema accepts strings. No lossless numeric parsing.
{
"global": {
"requestBytes": 131072,
"responseBytes": 524288,
"jsonDepth": 32,
"jsonNodes": 20000,
"requestsPerMinute": 60,
"paidAttemptsPerMinute": 20,
"idempotencyHours": 24
},
"operation": {
"requestBytes": 131072,
"responseBytes": 524288,
"jsonDepth": 32
}
}
Complete schemas, descriptions and cross-field validation may impose additional limits.
Proposed price and protocol definitions
{
"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."
}
Protocol definitions: x402, mpp. MPP uses Tempo charge. Paid MCP execution is unsupported. All runtime readiness is not evaluated in this build.
API path templates, not endpoints on this documentation host
{
"x402": "/v1/x402/records-sort",
"mpp": "/v1/mpp/records-sort"
}
Required headers
{
"Content-Type": "application/json",
"Idempotency-Key": "random 16–128 character operation identifier"
}
Actual SDK challenge amount, asset, network, recipient and wallet costs must pass independent authorization. Preserve identical key, body, protocol and credential on retries; on PAYMENT_UNCERTAIN stop and reconcile.
Execution profile and provider conditions
{
"deterministic": true,
"externalRequests": 0,
"maxExternalRequests": 0,
"resultSnapshotPersisted": false,
"fixedExampleIsIllustrativeSnapshot": false,
"requiresPayment": true,
"supportsMcpExecution": false
}
Deterministic supplied-input operation with no external requests or stored request/result bodies. Payment infrastructure retains payment metadata and hashes.
Failure handling
- HTTP 400: Malformed JSON, missing/invalid idempotency key, or payment identifier mismatch Correct the request before payment
- HTTP 402: Payment challenge or rejected payment Use official protocol SDK; inspect payment outcome before another payment
- HTTP 409: Idempotency conflict, duplicate proof, or PAYMENT_UNCERTAIN Keep original key, body, and proof; reconcile uncertainty with operator; never blindly repay
- HTTP 413: Input or generated output too large Reduce input; no payment attempted for validation failure
- HTTP 415: Unsupported media type or compression Send uncompressed application/json
- HTTP 422: Schema or service-specific semantic validation failure Correct input using returned error code; no payment attempted
- HTTP 429: Request/payment-attempt rate exceeded Wait for rate limit window; preserve existing payment identity
- HTTP 503: Payment configuration/provider/state unavailable, or live DNS preparation failed before settlement Check readiness; DNS preparation failures may retry the identical key/body/credential only; uncertainty requires reconciliation
Declared requirements
Before any paid call, refresh the live operation contract and POST the complete bounded budgeted plan to the separate API's /preflight. Unknown requirements block selection; compatible preflight is not permission to spend.