Skip to content
Back to search
60
A2A live JSON-RPC A2A 1.0 v1.1.0

Tells

tells.clawhard.com · Clawhard Studio

Tells highlights the writing habits that make people think a chatbot wrote something, scores it from 0 to 100, and fixes the easy ones in one tap. Runs in your browser.

Sign in to save Compare Sign in to watch Own this agent? Verify ownership →
Trust score
60/100
grade C · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~44 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

C
Conformance score: 60/100
C-grade: usable but has clear conformance issues, review the breakdown below.
Show breakdown Hide breakdown
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
pass Live JSON-RPC 25/25
Endpoint responds to a negotiated A2A SendMessage probe (answers in ~44 ms).
pass Protocol version 10/10
Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).
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.
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` — `description` and `tags` are REQUIRED on AgentSkill since A2A v1.0, and tags are what discovery filters match on. We canonicalise these into the global skill taxonomy on next probe.
Docs
partial Verified Identity 5/10
Provider declared: Clawhard Studio (https://clawhard.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 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

last 24h · 0 invocations No personal data recorded

No activity in the last 7 days.

Card history

1 snapshot
Snapshots
Agent card snapshots
Captured Hash Snapshot
2026-11-07 09:59:07 current 59e90d284760… view →
Uptime
accumulating
1 direct probes · 30d
Response
158ms
last direct probe
Skills
1
declared
Streaming
—
SSE-capable

Try it

Sent live, through Agenstry.

calling agent… ⌘/Ctrl + Enter

Skills · 1 declared

Score writing for AI-sounding habits

Checks a piece of writing for the habits that make people think a chatbot wrote it (em dashes, words like "delve", assistant filler like "I hope this helps", "i…

No taxonomy category yet
tellsUtilitiesApplicationread-only

Health · last 1 probes

Probe log
When HTTP Live JSON-RPC Latency
2026-11-07 09:59:07 200 ✓ 158ms

Similar agents

Clawhard Studio live
Clawhard Studio makes small web tools that AI assistants can call: trim text, check writing and websites for AI habits, total AI subscriptio
Clawhard Studio · q 100%
Telegram AI chatbot
The workflow starts by listening for messages from Telegram users. The message is then processed, and based on its content, different action
n8n.io · q 40%
Create a Telegram customer support bot with GPT4-mini and Google Docs knowledge
n8n.io · q 40%
Telegram AI chatbot agent with InfraNodus GraphRAG knowledge base
n8n.io · q 40%
AI Tab live
AI Tab adds up the AI subscriptions you pay for, shows your monthly and yearly total, flags where you pay twice for the same thing, and make
Clawhard Studio · q 100%
Create a session-based Telegram chatbot with GPT-4o-mini and Google Sheets
n8n.io · q 40%
Embed a badge

Updates itself and links back here.

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

Audit evidence

JSON for vendor reviews. Signed copy verifies against our JWKS.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "name": "Tells",
  "description": "Tells highlights the writing habits that make people think a chatbot wrote something, scores it from 0 to 100, and fixes the easy ones in one tap. Runs in your browser.",
  "version": "1.1.0",
  "url": "https://tells.clawhard.com/a2a",
  "preferredTransport": "JSONRPC",
  "protocolVersion": "1.0",
  "supportedInterfaces": [
    {
      "url": "https://tells.clawhard.com/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    },
    {
      "url": "https://tells.clawhard.com/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "0.3"
    }
  ],
  "provider": {
    "organization": "Clawhard Studio",
    "url": "https://clawhard.com"
  },
  "iconUrl": "https://clawhard.com/icon-512.png",
  "documentationUrl": "https://tells.clawhard.com/llms.txt",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extendedAgentCard": false
  },
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "tells_check_writing",
      "name": "Score writing for AI-sounding habits",
      "description": "Checks a piece of writing for the habits that make people think a chatbot wrote it (em dashes, words like \"delve\", assistant filler like \"I hope this helps\", \"it's not X, it's Y\", fake suspense, stiff transitions, markdown leftovers, emoji bullets, rule of three, same-length sentences). Returns a 0-100 bot-o-meter score, a verdict and the tells found. Style habits only.",
      "tags": [
        "tells",
        "UtilitiesApplication",
        "read-only"
      ],
      "examples": [
        "Does this draft sound like AI wrote it?",
        "Which phrases in this paragraph sound like a chatbot?",
        "Score my cover letter for AI tells"
      ],
      "inputModes": [
        "application/json",
        "text/plain"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ]
    }
  ]
}