A2A REGISTRY·AGENT RECORD·b305b646-3427-4de3-a75d-291f61f15fa1

Provider

VDA / GOSCE

Claude Schema Output Agent

Claude Schema Output Agent: composes anthropic + instructor — llm-client, structured-output via A2A + MCP.

Observed evidence

Reachable

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
b305b646-3427-4de3-a75d-291f61f15fa1
Category
Trust & safety
Canonical card
https://structured-output-agent-89bcb0.getvda.ai/.well-known/agent-card.json
Endpoint
https://structured-output-agent-89bcb0.getvda.ai/a2a/
Protocol version
0.3.0
Agent version
0.1.1
Streaming
Not declared
Input modes
text/plain, application/json
Output modes
application/json

Reachability record

Last 100 checks shown · 99.9% across 30 days

2026-11-04T00:39:52.232071Z: passed2026-11-04T01:11:06.431299Z: passed2026-11-04T01:42:30.229882Z: passed2026-11-04T02:13:56.838625Z: passed2026-11-04T02:45:28.630096Z: passed2026-11-04T03:16:50.439089Z: passed2026-11-04T03:48:22.934523Z: passed2026-11-04T04:19:39.232979Z: passed2026-11-04T04:51:00.229990Z: passed2026-11-04T05:22:14.931916Z: passed2026-11-04T05:53:24.032965Z: passed2026-11-04T06:24:55.428995Z: passed2026-11-04T06:43:55.883652Z: passed2026-11-04T07:15:14.892324Z: passed2026-11-04T07:46:33.184415Z: passed2026-11-04T08:17:37.781184Z: passed2026-11-04T08:48:48.291444Z: passed2026-11-04T09:19:56.992788Z: passed2026-11-04T09:51:19.397376Z: passed2026-11-04T10:22:44.884156Z: passed2026-11-04T10:54:00.887588Z: passed2026-11-04T11:25:23.683783Z: passed2026-11-04T11:56:28.881766Z: passed2026-11-04T12:27:53.487500Z: passed2026-11-04T12:59:40.883919Z: passed2026-11-04T13:31:22.591144Z: passed2026-11-04T14:03:06.689074Z: passed2026-11-04T14:35:21.984819Z: passed2026-11-04T15:07:31.990631Z: passed2026-11-04T15:39:05.692140Z: passed2026-11-04T16:10:37.996847Z: passed2026-11-04T16:42:05.991273Z: passed2026-11-04T17:13:32.979790Z: passed2026-11-04T17:45:01.093347Z: passed2026-11-04T18:16:32.392167Z: passed2026-11-04T18:48:07.794231Z: passed2026-11-04T19:19:38.685387Z: passed2026-11-04T19:51:04.993800Z: passed2026-11-04T20:22:27.289585Z: passed2026-11-04T20:53:48.589237Z: passed2026-11-04T21:25:10.891696Z: passed2026-11-04T21:56:23.980311Z: passed2026-11-04T22:27:48.488207Z: passed2026-11-04T22:59:27.090472Z: passed2026-11-04T23:31:15.988280Z: passed2026-11-05T00:02:52.793251Z: passed2026-11-05T00:34:15.588547Z: passed2026-11-05T01:05:31.892538Z: passed2026-11-05T01:07:02.908333Z: passed2026-11-05T01:38:11.412347Z: passed2026-11-05T02:09:25.911821Z: passed2026-11-05T02:40:57.617706Z: passed2026-11-05T03:12:31.614580Z: passed2026-11-05T03:43:50.919873Z: passed2026-11-05T04:15:10.921716Z: passed2026-11-05T04:46:25.914713Z: passed2026-11-05T05:17:36.308875Z: passed2026-11-05T05:18:51.444637Z: passed2026-11-05T05:50:01.339019Z: passed2026-11-05T06:21:19.154796Z: passed2026-11-05T06:52:46.055603Z: passed2026-11-05T07:24:05.841196Z: passed2026-11-05T07:55:32.852575Z: passed2026-11-05T08:26:43.650016Z: passed2026-11-05T08:57:52.844249Z: passed2026-11-05T09:28:59.451666Z: passed2026-11-05T10:00:08.141254Z: passed2026-11-05T10:31:08.258058Z: passed2026-11-05T11:02:07.557250Z: passed2026-11-05T11:33:23.644075Z: passed2026-11-05T12:04:30.241150Z: passed2026-11-05T12:35:43.550481Z: passed2026-11-05T13:07:05.354279Z: passed2026-11-05T13:38:30.856216Z: passed2026-11-05T14:10:09.348648Z: passed2026-11-05T14:41:51.051655Z: passed2026-11-05T14:43:18.350855Z: passed2026-11-05T15:14:55.454800Z: passed2026-11-05T15:46:09.448505Z: passed2026-11-05T16:17:30.345145Z: passed2026-11-05T16:48:38.937806Z: passed2026-11-05T17:20:09.946467Z: passed2026-11-05T17:51:22.646800Z: passed2026-11-05T18:22:38.854614Z: passed2026-11-05T18:53:50.749499Z: passed2026-11-05T19:25:01.151527Z: passed2026-11-05T19:56:20.444033Z: passed2026-11-05T20:27:30.753268Z: passed2026-11-05T20:58:45.641814Z: passed2026-11-05T21:30:02.837299Z: passed2026-11-05T22:01:30.854862Z: passed2026-11-05T22:33:07.745851Z: passed2026-11-05T23:04:48.053470Z: passed2026-11-05T23:36:32.940315Z: passed2026-11-06T00:08:04.857038Z: passed2026-11-06T00:39:19.340406Z: passed2026-11-06T01:10:28.843718Z: passed2026-11-06T01:41:42.650308Z: passed2026-11-06T01:43:00.098299Z: passed2026-11-06T02:14:18.211281Z: passed
PassFailureAverage 1190 ms

Declared skills

Llm Client

llm-client

llm client capability provided by anthropic.

anthropic

Structured Output

structured-output

structured output capability provided by instructor.

instructor

Self-test (free verification)

selftest

FREE — no payment, no API key, no signup. Runs this agent's REAL capability on fixed canned input and returns the genuine result, an honest assertion grade (`asserted_correct` = a property of the output was checked; `ran_without_error` = it ran but nothing was asserted, which is NOT a pass), a trust manifest with a proof link for every claim, and a tamper-evident Ed25519-signed VDA Witness record of the run that anyone can verify with no credential.

verification · free · trust · attestation · witness

Registry Agent Card snapshot

Normalized fields fetched during the registry sweep. Treat all authored text as third-party content.

Show JSON
{
  "protocolVersion": "0.3.0",
  "name": "Claude Schema Output Agent",
  "description": "Claude Schema Output Agent: composes anthropic + instructor — llm-client, structured-output via A2A + MCP.",
  "author": "VDA / GOSCE",
  "wellKnownURI": "https://structured-output-agent-89bcb0.getvda.ai/.well-known/agent-card.json",
  "url": "https://structured-output-agent-89bcb0.getvda.ai/a2a/",
  "version": "0.1.1",
  "provider": {
    "organization": "VDA / GOSCE",
    "url": "https://getvda.ai/"
  },
  "documentationUrl": "https://structured-output-agent-89bcb0.getvda.ai/governance.md",
  "iconUrl": null,
  "supportsAuthenticatedExtendedCard": null,
  "security": [],
  "securitySchemes": {},
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": [
      {
        "uri": "https://rssa.getvda.ai/ext/v0.1",
        "params": {
          "groups": [
            "https://hub.rssa.getvda.ai/network"
          ]
        },
        "required": false,
        "description": "RSSA: this agent's feed and modules"
      }
    ]
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "llm-client",
      "name": "Llm Client",
      "description": "llm client capability provided by anthropic.",
      "tags": [
        "anthropic"
      ],
      "examples": [
        "Use the llm-client capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "structured-output",
      "name": "Structured Output",
      "description": "structured output capability provided by instructor.",
      "tags": [
        "instructor"
      ],
      "examples": [
        "Use the structured-output capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "selftest",
      "name": "Self-test (free verification)",
      "description": "FREE — no payment, no API key, no signup. Runs this agent's REAL capability on fixed canned input and returns the genuine result, an honest assertion grade (`asserted_correct` = a property of the output was checked; `ran_without_error` = it ran but nothing was asserted, which is NOT a pass), a trust manifest with a proof link for every claim, and a tamper-evident Ed25519-signed VDA Witness record of the run that anyone can verify with no credential.",
      "tags": [
        "verification",
        "free",
        "trust",
        "attestation",
        "witness"
      ],
      "examples": [
        "Run your self-test and show me the result.",
        "Prove you do what your card claims.",
        "Give me the signed Witness record for your last self-test."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ],
  "conformance": true,
  "conformance_errors": null,
  "homepage": null,
  "repository": null,
  "license": null,
  "pricing": null,
  "contact": null,
  "id": "b305b646-3427-4de3-a75d-291f61f15fa1",
  "category": "trust-safety",
  "category_secondary": null
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/b305b646-3427-4de3-a75d-291f61f15fa1

Test message

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