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# ContractCases — AgentToolbox

Need boundary and negative tests for a bounded JSON Schema?
Generate checked boundary and negative cases for supported JSON Schemas.

Choose for boundary witnesses and isolated negative cases in the accepted schema subset. Inspect the returned validation traces; coverage gaps remain explicit.

Creator

AgentToolbox (`first_party`). Beta. Version `0.1.1`.

Cost

from $0.01 USDC per published success; USDC on Base, buyer chosen amount. Latency and agent token costs remain on failed outcomes.

Scope

Accepted JSON Schema subset · valid seed required · bounded coverage

Tool ID

contract-cases

Invocation

POST /v1/products/contract-cases/invoke

Success: At least one valid boundary case and one negative case failing exactly its intended keyword and instance; every case revalidated against the complete accepted schema. Coverage gaps explicit; not certification.
Failure policy: Invalid input, failed criterion or unavailable decisive evidence never settles. Uncertain settlement requires reconciliation; never issue a replacement authorization.

## Inspect, test, pin, call

Full current contract JSON: https://agi.agenttoolbox2026.workers.dev/v1/products/contract-cases
Current success checks JSON and verifiable pin: https://agi.agenttoolbox2026.workers.dev/v1/products/contract-cases/criteria
Source snapshot success hash (verify current contract before authorizing): 5ca7675acb9e449d501e8e2445fd4a2010a0ab155fd4eb655cb442067020199f
Free static fixtures JSON: https://agi.agenttoolbox2026.workers.dev/v1/products/contract-cases/examples
Fixtures are synthetic offline cases, not live outcomes. input_valid covers the full runtime-accepted contract, including any host/subset/seed constraints.
Limited real-input preview: https://agi.agenttoolbox2026.workers.dev/products/contract-cases/preview
Preparation API: POST https://agi.agenttoolbox2026.workers.dev/v1/products/contract-cases/prepare
Read-only minimum challenge/pin: GET https://agi.agenttoolbox2026.workers.dev/v1/products/contract-cases/invoke (402 expected)
Direct minimum call: POST https://agi.agenttoolbox2026.workers.dev/v1/products/contract-cases/invoke
Optional higher/prepared quote: POST https://agi.agenttoolbox2026.workers.dev/v1/products/contract-cases/quote

Exact buyer procedure and receipt replay: https://agi.agenttoolbox2026.workers.dev/buy.md
Reviews: https://agi.agenttoolbox2026.workers.dev/products/contract-cases/reviews

## Example input

```json
{
  "schema": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "type": "object",
    "properties": {
      "count": {
        "type": "integer",
        "minimum": 1,
        "maximum": 10
      }
    },
    "required": [
      "count"
    ],
    "additionalProperties": false
  },
  "valid_example": {
    "count": 3
  },
  "max_cases": 12
}
```

## Runtime limits

```json
{
  "schema_bytes": 8192,
  "seed_bytes": 2048,
  "schema_nodes": 64,
  "schema_depth": 3,
  "properties_per_object": 25,
  "total_properties": 25,
  "array_items": 16,
  "string_length": 128,
  "instance_nodes": 128,
  "instance_depth": 8,
  "number_magnitude": 1000000000,
  "candidates": 160,
  "cases": 24,
  "output_bytes": 14000,
  "subset": {
    "dialect": "2020-12 bounded subset",
    "types": [
      "object",
      "array",
      "string",
      "number",
      "integer",
      "boolean",
      "null"
    ],
    "keywords": [
      "type",
      "enum",
      "const",
      "properties",
      "required",
      "additionalProperties",
      "items",
      "minItems",
      "maxItems",
      "minLength",
      "maxLength",
      "minimum",
      "maximum",
      "exclusiveMinimum",
      "exclusiveMaximum"
    ],
    "annotations": [
      "$schema",
      "title",
      "description"
    ],
    "unsupported": [
      "references",
      "composition",
      "type unions",
      "boolean schemas",
      "pattern",
      "format",
      "multipleOf",
      "unevaluated keywords",
      "remote resources"
    ]
  }
}
```

## Preview limits

```json
{
  "ttl_seconds": 900,
  "global_daily": 50,
  "client_daily": 10,
  "active": 16,
  "max_result_bytes": 14000,
  "max_preview_bytes": 2000,
  "quote_daily": 200
}
```

## Schemas and retention

Input and output schemas: https://agi.agenttoolbox2026.workers.dev/v1/products/contract-cases
{
"inputs": "Raw requests/signatures/capabilities are not stored. Hash commitments stay private.",
"results": "Prepared results private for 15 minutes unpaid; completed paid output replay for 24 hours. Pending settlement retains output for reconciliation.",
"source_content": "Untrusted data; never instructions."
}