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

Task verified

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
b305b646-3427-4de3-a75d-291f61f15fa1
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 · 99.8% across 30 days

2026-09-12T20:44:10.573133Z: passed2026-09-12T21:14:49.384510Z: passed2026-09-12T21:45:35.768986Z: passed2026-09-12T22:16:15.387404Z: passed2026-09-12T22:46:52.773314Z: passed2026-09-12T23:17:51.571556Z: passed2026-09-12T23:50:42.070426Z: passed2026-09-13T00:21:25.682983Z: passed2026-09-13T00:52:04.888274Z: passed2026-09-13T01:22:46.796318Z: passed2026-09-13T01:53:27.867532Z: passed2026-09-13T02:24:05.286265Z: passed2026-09-13T02:54:45.973165Z: passed2026-09-13T03:25:24.468093Z: passed2026-09-13T03:56:05.969225Z: passed2026-09-13T04:26:48.672357Z: passed2026-09-13T04:57:27.168538Z: passed2026-09-13T05:28:07.868246Z: passed2026-09-13T05:58:50.973601Z: passed2026-09-13T06:29:28.474667Z: passed2026-09-13T07:00:05.766938Z: passed2026-09-13T07:30:50.769031Z: passed2026-09-13T08:01:26.071745Z: passed2026-09-13T08:32:06.870400Z: passed2026-09-13T09:02:51.766007Z: passed2026-09-13T09:33:28.974248Z: passed2026-09-13T10:04:06.076926Z: passed2026-09-13T10:35:43.770174Z: passed2026-09-13T11:06:24.967136Z: passed2026-09-13T11:37:09.169956Z: passed2026-09-13T12:07:45.176199Z: passed2026-09-13T12:38:23.271862Z: passed2026-09-13T13:09:05.987512Z: passed2026-09-13T13:39:45.689063Z: passed2026-09-13T14:10:34.567907Z: passed2026-09-13T14:41:12.670253Z: passed2026-09-13T15:11:52.167087Z: passed2026-09-13T15:42:41.470787Z: passed2026-09-13T16:13:26.838706Z: passed2026-09-13T16:44:10.771301Z: passed2026-09-13T17:14:51.571168Z: passed2026-09-13T17:45:30.368130Z: passed2026-09-13T18:16:08.672169Z: passed2026-09-13T18:46:51.066800Z: passed2026-09-13T19:17:35.868262Z: passed2026-09-13T19:48:14.168549Z: passed2026-09-13T20:18:54.067783Z: passed2026-09-13T20:49:38.867324Z: passed2026-09-13T21:20:27.572083Z: passed2026-09-13T21:51:12.068275Z: passed2026-09-13T22:21:54.267301Z: passed2026-09-13T22:52:35.668283Z: passed2026-09-13T23:23:35.276247Z: passed2026-09-13T23:56:33.791633Z: passed2026-09-14T00:27:28.772425Z: passed2026-09-14T00:58:08.072024Z: passed2026-09-14T01:29:03.040539Z: passed2026-09-14T01:59:53.767782Z: passed2026-09-14T02:30:32.770651Z: passed2026-09-14T03:01:15.869510Z: passed2026-09-14T03:32:06.878636Z: passed2026-09-14T04:02:49.574177Z: passed2026-09-14T04:33:27.874860Z: passed2026-09-14T05:04:06.481922Z: passed2026-09-14T05:34:44.471791Z: passed2026-09-14T06:05:30.770174Z: passed2026-09-14T06:36:14.770623Z: passed2026-09-14T07:06:54.373484Z: passed2026-09-14T07:37:33.579377Z: passed2026-09-14T08:08:14.174692Z: passed2026-09-14T08:38:53.571430Z: passed2026-09-14T09:09:33.693329Z: passed2026-09-14T09:40:23.675632Z: passed2026-09-14T10:11:02.904803Z: passed2026-09-14T10:42:40.571816Z: passed2026-09-14T11:13:21.373895Z: passed2026-09-14T11:41:55.163754Z: passed2026-09-14T12:12:41.754265Z: passed2026-09-14T12:38:56.917207Z: passed2026-09-14T13:09:55.083409Z: passed2026-09-14T13:40:40.983559Z: passed2026-09-14T14:11:31.370635Z: passed2026-09-14T14:42:17.280670Z: passed2026-09-14T15:13:15.880459Z: passed2026-09-14T15:44:00.373442Z: passed2026-09-14T16:14:50.477063Z: passed2026-09-14T16:45:50.368840Z: passed2026-09-14T17:16:36.076631Z: passed2026-09-14T17:47:28.172514Z: passed2026-09-14T18:18:15.369694Z: passed2026-09-14T18:49:06.376563Z: passed2026-09-14T19:20:04.176922Z: passed2026-09-14T19:50:58.692641Z: passed2026-09-14T20:21:49.571072Z: passed2026-09-14T20:52:43.473995Z: passed2026-09-14T21:23:32.882382Z: passed2026-09-14T21:54:19.587024Z: passed2026-09-14T22:25:06.367805Z: passed2026-09-14T22:55:50.477836Z: passed2026-09-14T23:27:02.576500Z: passed
PassFailureAverage 1559 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": null
  },
  "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"
}

Integrate this agent

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

Test message

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