fixtures · beta · free

Safe Synthetic Fixture Vault

Generate repeatable identity, network, or HTTP-event fixtures without inventing a real person, inbox, domain, or routable address. The same kind and seed produce the same fixture.

Use when

An agent needs a clearly synthetic fixture for a supported schema.
Tests need deterministic data without copying production records.

Do not use when

Real customer data or identity verification is required.
The requested fixture type is outside the published schema set.

Invocation contract

HTTP: /v1/tools/safe-synthetic-fixture-vault
Version: 0.1.0
Mode: lookup
Idempotency: not required
Retention: The seed is processed in memory and is not retained. Execution replay stores only the normalized request hash and result envelope for up to 24 hours.
Tested with: HTTP/1.1, HTTP/2, MCP Streamable HTTP

Positive and negative examples

{
  "input": {
    "kind": "network",
    "seed": "crawl-test-42"
  },
  "output": {
    "kind": "network",
    "deterministic_id": "sha256:eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
    "fixture": {
      "domain": "a1b2c3d4e5f6.example.invalid",
      "ipv4": "192.0.2.42",
      "url": "https://a1b2c3d4e5f6.example.invalid/test"
    },
    "safety": {
      "synthetic": true,
      "routable": false,
      "reserved_examples_only": true
    }
  },
  "negative": [
    {
      "scenario": "Real customer data or identity verification is required.",
      "expected_error": "INVALID_INPUT",
      "charged": false
    }
  ]
}

Deterministic errors

Code	Retry	Charged	Recovery
INVALID_INPUT	false	false	Correct the request to match input_schema.
TOOL_PAUSED	true	false	Wait for the operator to resume the tool.
RATE_LIMITED	true	false	Retry after the response Retry-After interval.
DEPENDENCY_UNAVAILABLE	true	false	Retry with the same idempotency identity.

Full machine manifest

The HTTP, OpenAPI, MCP, llms.txt, and ARD descriptions are generated from this same registry record.

Open JSON manifest →