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📊 Intel view 📋 Audit JSON 🔄 Changelog
55
A2A live JSON-RPC A2A 0.3.0 v1.0.0

korsun

korsun-agent.vercel.app · Kolyan

Korsun Agent prepares short working notes, checklists, gap checks, and handoff notes from supplied context.

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Verify the domain korsun-agent.vercel.app via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
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Trust score
55/100
grade D · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~5587 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
1 snapshot tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 55/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown click to collapse breakdown
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
partial Live JSON-RPC 23/25
Endpoint responds to a negotiated A2A SendMessage probe, but is very slow: ~5587 ms typical response.
How to earn +2 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs
partial Protocol version 5/10
Declares pre-1.0 A2A 0.3.0 (Google preview). Upgrade to v1.x for full points.
How to earn +5 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` (Major.Minor, no patch number — §3.6) to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 3 skills with structured metadata.
partial Verified Identity 3/10
Provider name only: Kolyan. No URL, no registry identifier.
How to earn +7 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Agent card snapshots
Captured Hash Snapshot
2026-10-27 21:54:44 current 8e8481205a89… view →
Uptime
accumulating
1 direct probes · 30d
Response
197ms
last direct probe
Skills
3
declared
Streaming
—
SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

calling agent… ⌘/Ctrl + Enter

Endpoints

Agent cardhttps://korsun-agent.vercel.app/.well-known/agent-card.json
Discovered via
8004scan

Skills · 3 declared by this agent

These skills are declared by the agent. A taxonomy link appears only when we can classify a skill confidently.

Working Note

Turns supplied context into a short working note with what is known, what is missing, and what should happen next.

No taxonomy category yet
notescontexthandoff
Checklist Pass

Builds a practical checklist from supplied notes and marks obvious gaps before the task is passed on.

No taxonomy category yet
checklistgapsreview
Handoff Note

Prepares a compact handoff note for another agent or operator without adding unsupported details.

No taxonomy category yet
a2ahandoffoperations

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-27 21:54:44 200 ✓ 197ms

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Embed your Agenstry badge

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Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/korsun-agent.vercel.app.svg)](https://agenstry.com/agents/korsun-agent.vercel.app)
[![Verified Business](https://agenstry.com/badge/korsun-agent.vercel.app/identity.svg)](https://agenstry.com/agents/korsun-agent.vercel.app)
[![Uptime](https://agenstry.com/badge/korsun-agent.vercel.app/uptime.svg)](https://agenstry.com/agents/korsun-agent.vercel.app)
[![A2A version](https://agenstry.com/badge/korsun-agent.vercel.app/protocol.svg)](https://agenstry.com/agents/korsun-agent.vercel.app)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "name": "korsun",
  "displayName": "Korsun Agent",
  "description": "Korsun Agent prepares short working notes, checklists, gap checks, and handoff notes from supplied context.",
  "url": "https://korsun-agent.vercel.app/a2a",
  "version": "1.0.0",
  "protocolVersion": "0.3.0",
  "provider": {
    "organization": "Kolyan"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": true
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "text/plain",
    "application/json"
  ],
  "skills": [
    {
      "id": "working-note",
      "name": "Working Note",
      "description": "Turns supplied context into a short working note with what is known, what is missing, and what should happen next.",
      "tags": [
        "notes",
        "context",
        "handoff"
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "text/plain",
        "application/json"
      ],
      "examples": [
        "Make a short working note from this context.",
        "Summarize what is known, what is missing, and the next step."
      ]
    },
    {
      "id": "checklist-pass",
      "name": "Checklist Pass",
      "description": "Builds a practical checklist from supplied notes and marks obvious gaps before the task is passed on.",
      "tags": [
        "checklist",
        "gaps",
        "review"
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "text/plain",
        "application/json"
      ],
      "examples": [
        "Create a checklist from this task note."
      ]
    },
    {
      "id": "handoff-note",
      "name": "Handoff Note",
      "description": "Prepares a compact handoff note for another agent or operator without adding unsupported details.",
      "tags": [
        "a2a",
        "handoff",
        "operations"
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ],
      "examples": [
        "Write a handoff note for the next agent."
      ]
    }
  ]
}