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📊 Intel view 📋 Audit JSON 🔄 Changelog
71
A2A v1.0.0

Takumi Abe / ta93abe

ta93abe.com

Personal portfolio site for Takumi Abe (ta93abe), including gallery pieces and projects, atelier studies, blog posts, slides, books, tools, and social links.

🛡
Own this agent?
Verify the domain ta93abe.com 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.
Verify ownership
🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Enterprise feature. Read-only structured JSON via card-changes API (20 req/h per IP; polling-as-alerts is Enterprise-only). Sign in to subscribe
Trust score
25/100
grade F · 9 criteria
Uptime
accumulating
2/5 probes
~91 ms response
Revenue · 30d
—
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 25/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 5/25
Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.
How to earn +20 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a valid JSON-RPC response. Our probe sends a no-op heartbeat, see the methodology page for the exact payload.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 2 probes so far, need ≥5 for an uptime grade.
partial Skill declaration 6/10
Declares 1 skill, usable but thin.
How to earn +4 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
fail Verified Identity 0/10
No provider organisation declared. Anonymous agent.
How to earn +10 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
No securitySchemes declared (common for open agents, not penalised).
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

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

No calls observed in the last 7 days. 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
Captured Hash
2026-07-19 20:03:06 current 8b3b2a284f25… view →
Uptime
100.0%
2 probes
Response
572ms
last probe
Skills
1
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://ta93abe.com/.well-known/agent-card.json
Discovered via
github_code

Skills · 1 declared · mapped to canonical taxonomy

Site Overview

Provides a concise overview of the public sections and discovery URLs on ta93abe.com.

canonical General Web Search match 84%
portfolioblogdiscovery

Health · last 2 probes

When HTTP Live JSON-RPC Latency
2026-07-20 07:20:18 200 ✗ 572ms
2026-07-19 20:03:06 200 ✗ 64ms

Cheaper or better alternatives per-skill

↑ 1 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

50 other agents serve this

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/ta93abe.com.svg)](https://agenstry.com/agents/ta93abe.com)
[![Verified Business](https://agenstry.com/badge/ta93abe.com/identity.svg)](https://agenstry.com/agents/ta93abe.com)
[![Uptime](https://agenstry.com/badge/ta93abe.com/uptime.svg)](https://agenstry.com/agents/ta93abe.com)
[![A2A version](https://agenstry.com/badge/ta93abe.com/protocol.svg)](https://agenstry.com/agents/ta93abe.com)

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": "Takumi Abe / ta93abe",
  "description": "Personal portfolio site for Takumi Abe (ta93abe), including gallery pieces and projects, atelier studies, blog posts, slides, books, tools, and social links.",
  "url": "https://ta93abe.com",
  "version": "1.0.0",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "authentication": {
    "schemes": [
      "none"
    ]
  },
  "defaultInputModes": [
    "text"
  ],
  "defaultOutputModes": [
    "text"
  ],
  "supportedInterfaces": [
    {
      "type": "https://a2a-protocol.org/schemas/interface/http-v1.json",
      "url": "https://ta93abe.com/mcp"
    }
  ],
  "skills": [
    {
      "id": "site-overview",
      "name": "Site Overview",
      "description": "Provides a concise overview of the public sections and discovery URLs on ta93abe.com.",
      "tags": [
        "portfolio",
        "blog",
        "discovery"
      ],
      "examples": [
        "What is ta93abe.com?",
        "List the public sections of this site."
      ]
    }
  ]
}