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📊 Intel view 📋 Audit JSON 🔄 Changelog
29
A2A v2.0.0

Hanging Context

hangingcontext.com · Synorb

Fresh context for agents. Stories are rebuilt every 12 hours. Each claim cites a Synorb Manifest. Reading is free and needs no key.

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🛡
Own this agent?
Verify the domain hangingcontext.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.
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Compare public evidence

🔔 Watch this agent. Choose one alert: availability and recovery, card drift, price, payment rail, settlement wallet, inflow or verification changes. Add more alert types from your account. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
1 thing in this card we could not use
Everything else was indexed. This is exactly what we read and what we could not — no field is silently blank. Fix the card at https://hangingcontext.com/.well-known/agent-card.json and the next probe clears this panel.
Field What we saw What we stored
capabilities Input should be a valid dictionary or instance of Capabilities dropped — this field was not indexed
Trust score
29/100
grade F · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~122 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

F
Conformance score: 29/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
partial Valid AgentCard 9/10
AgentCard did not read cleanly: 1 field we could not read. Scored on what we could read, not on a card that arrived as published — the card findings name every affected field and what we did with it.
How to earn +1 point
Publish a parseable A2A AgentCard
Serve a valid AgentCard JSON at /.well-known/agent-card.json. The A2A 1.0 schema is the reference; we accept the v0.x backwards-compatible variant too.
Docs →
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 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 →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 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.
partial Skill declaration 6/10
Declares 1 skill, usable but thin. 1 skill without tags — optional in 0.x, REQUIRED once you move the card to v1.0.
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: Synorb (https://synorb.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 (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
2026-10-21 08:20:39 current c8b8be12bde8… view →
Uptime
accumulating
1 direct probes · 30d
Response
109ms
last direct probe
Skills
1
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://hangingcontext.com/.well-known/agent-card.json
Providerhttps://synorb.com
Docshttps://hangingcontext.com/for-agents/
Discovered via
smithery

Skills · 1 declared by this agent

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

hc-read-latest-stories
No taxonomy category yet

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-21 08:20:39 200 ✗ 109ms

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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/hangingcontext.com.svg)](https://agenstry.com/agents/hangingcontext.com)
[![Verified Business](https://agenstry.com/badge/hangingcontext.com/identity.svg)](https://agenstry.com/agents/hangingcontext.com)
[![Uptime](https://agenstry.com/badge/hangingcontext.com/uptime.svg)](https://agenstry.com/agents/hangingcontext.com)
[![A2A version](https://agenstry.com/badge/hangingcontext.com/protocol.svg)](https://agenstry.com/agents/hangingcontext.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": "Hanging Context",
  "description": "Fresh context for agents. Stories are rebuilt every 12 hours. Each claim cites a Synorb Manifest. Reading is free and needs no key.",
  "url": "https://hangingcontext.com",
  "version": "2.0.0",
  "provider": {
    "organization": "Synorb",
    "url": "https://synorb.com"
  },
  "documentationUrl": "https://hangingcontext.com/for-agents/",
  "useCases": [
    "Get fresh, cited context before you act.",
    "Watch a topic and get only new stories.",
    "Check the Manifests behind a claim."
  ],
  "capabilities": [
    "story-search",
    "new-stories-since-cursor",
    "provenance",
    "nlweb-ask"
  ],
  "supportedInterfaces": [
    {
      "protocol": "MCP",
      "url": "https://hangingcontext.com/mcp",
      "transport": "streamable-http",
      "serverCard": "https://hangingcontext.com/.well-known/mcp/server-card.json"
    },
    {
      "protocol": "NLWeb",
      "url": "https://hangingcontext.com/ask",
      "streaming": "text/event-stream"
    },
    {
      "protocol": "REST",
      "url": "https://hangingcontext.com",
      "spec": "https://hangingcontext.com/openapi.json"
    }
  ],
  "authentication": {
    "required": false,
    "schemes": []
  },
  "skills": [
    {
      "id": "hc-read-latest-stories",
      "url": "https://hangingcontext.com/.well-known/agent-skills/hc-read-latest-stories/SKILL.md"
    }
  ],
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/markdown"
  ]
}