A2A REGISTRY·AGENT RECORD·ea9132d5-4d49-45b6-8fef-84f478944ed1

Provider

VDA / GOSCE

LLM Observability & Orchestration Agent (Langchain)

LLM Observability & Orchestration Agent (Langchain): composes langchain + langchain-core + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.

Observed evidence

Reachable

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
ea9132d5-4d49-45b6-8fef-84f478944ed1
Category
Agent orchestration · Trust & safety
Canonical card
https://langchain-langchain-core-langsmit-d042fc.getvda.ai/.well-known/agent-card.json
Endpoint
https://langchain-langchain-core-langsmit-d042fc.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

2026-11-04T00:39:51.535474Z: passed2026-11-04T01:11:06.035025Z: passed2026-11-04T01:42:29.835570Z: passed2026-11-04T02:13:56.429386Z: passed2026-11-04T02:45:28.228198Z: passed2026-11-04T03:16:50.037053Z: passed2026-11-04T03:48:22.622470Z: passed2026-11-04T04:19:38.928757Z: passed2026-11-04T04:51:00.035656Z: passed2026-11-04T05:22:14.639291Z: passed2026-11-04T05:53:23.528469Z: passed2026-11-04T06:24:54.830157Z: passed2026-11-04T06:43:55.206698Z: passed2026-11-04T07:15:14.489481Z: passed2026-11-04T07:46:32.493098Z: passed2026-11-04T08:17:37.288536Z: passed2026-11-04T08:48:47.885615Z: passed2026-11-04T09:19:56.491219Z: passed2026-11-04T09:51:19.088261Z: passed2026-11-04T10:22:44.287152Z: passed2026-11-04T10:54:00.186055Z: passed2026-11-04T11:25:23.193646Z: passed2026-11-04T11:56:28.393577Z: passed2026-11-04T12:27:52.392615Z: passed2026-11-04T12:59:40.581076Z: passed2026-11-04T13:31:22.283892Z: passed2026-11-04T14:03:06.191613Z: passed2026-11-04T14:35:21.290565Z: passed2026-11-04T15:07:31.591640Z: passed2026-11-04T15:39:05.289355Z: passed2026-11-04T16:10:37.594554Z: passed2026-11-04T16:42:05.484908Z: passed2026-11-04T17:13:32.789016Z: passed2026-11-04T17:45:00.588424Z: passed2026-11-04T18:16:32.083139Z: passed2026-11-04T18:48:07.593242Z: passed2026-11-04T19:19:38.291936Z: passed2026-11-04T19:51:04.389630Z: passed2026-11-04T20:22:27.083520Z: passed2026-11-04T20:53:48.282478Z: passed2026-11-04T21:25:10.385013Z: passed2026-11-04T21:56:23.581615Z: passed2026-11-04T22:27:48.091893Z: passed2026-11-04T22:59:26.794712Z: passed2026-11-04T23:31:15.484473Z: passed2026-11-05T00:02:52.289146Z: passed2026-11-05T00:34:15.385199Z: passed2026-11-05T01:05:31.488529Z: passed2026-11-05T01:07:02.618157Z: passed2026-11-05T01:38:11.117706Z: passed2026-11-05T02:09:25.610008Z: passed2026-11-05T02:40:57.218133Z: passed2026-11-05T03:12:31.017432Z: passed2026-11-05T03:43:50.509919Z: passed2026-11-05T04:15:10.715686Z: passed2026-11-05T04:46:25.509262Z: passed2026-11-05T05:17:35.916796Z: passed2026-11-05T05:18:50.954059Z: passed2026-11-05T05:50:01.740855Z: passed2026-11-05T06:21:18.751954Z: passed2026-11-05T06:52:45.550993Z: passed2026-11-05T07:24:05.353545Z: passed2026-11-05T07:55:32.244593Z: passed2026-11-05T08:26:43.341094Z: passed2026-11-05T08:57:52.658467Z: passed2026-11-05T09:28:58.847643Z: passed2026-11-05T10:00:07.554283Z: passed2026-11-05T10:31:07.645737Z: passed2026-11-05T11:02:06.945565Z: passed2026-11-05T11:33:23.153567Z: passed2026-11-05T12:04:29.841267Z: passed2026-11-05T12:35:43.348136Z: passed2026-11-05T13:07:04.946829Z: passed2026-11-05T13:38:30.245552Z: passed2026-11-05T14:10:08.945329Z: passed2026-11-05T14:41:50.346540Z: passed2026-11-05T14:43:17.844249Z: passed2026-11-05T15:14:54.948201Z: passed2026-11-05T15:46:09.250926Z: passed2026-11-05T16:17:29.854902Z: passed2026-11-05T16:48:38.349070Z: passed2026-11-05T17:20:09.439250Z: passed2026-11-05T17:51:22.046757Z: passed2026-11-05T18:22:38.248287Z: passed2026-11-05T18:53:50.146513Z: passed2026-11-05T19:25:00.939257Z: passed2026-11-05T19:56:19.946756Z: passed2026-11-05T20:27:30.151020Z: passed2026-11-05T20:58:44.946543Z: passed2026-11-05T21:30:02.338348Z: passed2026-11-05T22:01:30.443641Z: passed2026-11-05T22:33:07.347751Z: passed2026-11-05T23:04:47.540704Z: passed2026-11-05T23:36:32.448722Z: passed2026-11-06T00:08:04.654920Z: passed2026-11-06T00:39:19.154693Z: passed2026-11-06T01:10:28.551182Z: passed2026-11-06T01:41:42.250080Z: passed2026-11-06T01:42:59.803797Z: passed2026-11-06T02:14:17.810982Z: passed
PassFailureAverage 966 ms

Declared skills

Orchestration

orchestration

orchestration capability provided by langchain, langchain-core.

langchain · langchain-core

Observability

observability

observability capability provided by langsmith.

langsmith

Llm Client

llm-client

llm client capability provided by openai.

openai

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": "LLM Observability & Orchestration Agent (Langchain)",
  "description": "LLM Observability & Orchestration Agent (Langchain): composes langchain + langchain-core + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.",
  "author": "VDA / GOSCE",
  "wellKnownURI": "https://langchain-langchain-core-langsmit-d042fc.getvda.ai/.well-known/agent-card.json",
  "url": "https://langchain-langchain-core-langsmit-d042fc.getvda.ai/a2a/",
  "version": "0.1.1",
  "provider": {
    "organization": "VDA / GOSCE",
    "url": "https://getvda.ai/"
  },
  "documentationUrl": "https://langchain-langchain-core-langsmit-d042fc.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": "orchestration",
      "name": "Orchestration",
      "description": "orchestration capability provided by langchain, langchain-core.",
      "tags": [
        "langchain",
        "langchain-core"
      ],
      "examples": [
        "Use the orchestration capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "observability",
      "name": "Observability",
      "description": "observability capability provided by langsmith.",
      "tags": [
        "langsmith"
      ],
      "examples": [
        "Use the observability capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "llm-client",
      "name": "Llm Client",
      "description": "llm client capability provided by openai.",
      "tags": [
        "openai"
      ],
      "examples": [
        "Use the llm-client 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": "ea9132d5-4d49-45b6-8fef-84f478944ed1",
  "category": "agent-orchestration",
  "category_secondary": "trust-safety"
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/ea9132d5-4d49-45b6-8fef-84f478944ed1

Test message

Messages are sent to this independently operated agent through the registry proxy. Do not include secrets or personal data.

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