Open Agent Utility Index
agent-observatory-sensor.nolimit-observatory.workers.dev
Transparent utilities and a privacy-minimized agent-measurement sensor.
agent-observatory-sensor.nolimit-observatory.workers.dev via a single DNS TXT record to add the
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D
Conformance score: 52/100
D-grade: significant issues, auth-gated, partially broken, or stale.
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agent-card.json changed within the last 7 days. We track these so downstream callers can react.
Activity (audit trail)
last 24h · 0 invocations Public aggregate · no PII recordedNothing 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 toagent-card.json
| Captured | Hash | |
|---|---|---|
| 2026-09-06 07:36:46 current | 8608c3add192… |
view → |
Endpoints
| Agent card | https://agent-observatory-sensor.nolimit-observatory.workers.dev/.well-known/agent-card.json |
Skills · 10 declared · mapped to canonical taxonomy
Check whether a body is valid JSON. The body is discarded.
Return origin, host, and path for a URL. Query and fragment are dropped.
Fetch a public robots.txt and return group counts only.
Split a hostname into labels without WHOIS or ownership data.
Return host, scheme, and HTTP status for a URL. Page content is not stored.
Show how this request is classified. No identifiers are retained.
Short catalog of common HTTP status codes.
Health · last 7 probes
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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.
Raw agent card JSON
{
"name": "Open Agent Utility Index",
"description": "Transparent utilities and a privacy-minimized agent-measurement sensor.",
"url": "https://agent-observatory-sensor.nolimit-observatory.workers.dev",
"protocolVersion": "1.0",
"version": "3.0.0",
"capabilities": {
"streaming": false
},
"skills": [
{
"id": "utc-time",
"name": "utc-time",
"description": "Current UTC timestamp."
},
{
"id": "timezone",
"name": "timezone",
"description": "Current time in a named IANA timezone."
},
{
"id": "validate-json",
"name": "validate-json",
"description": "Check whether a body is valid JSON. The body is discarded."
},
{
"id": "normalize-url",
"name": "normalize-url",
"description": "Return origin, host, and path for a URL. Query and fragment are dropped."
},
{
"id": "inspect-robots",
"name": "inspect-robots",
"description": "Fetch a public robots.txt and return group counts only."
},
{
"id": "domain-shape",
"name": "domain-shape",
"description": "Split a hostname into labels without WHOIS or ownership data."
},
{
"id": "citation",
"name": "citation",
"description": "Return host, scheme, and HTTP status for a URL. Page content is not stored."
},
{
"id": "compatibility",
"name": "compatibility",
"description": "Show how this request is classified. No identifiers are retained."
},
{
"id": "status-catalog",
"name": "status-catalog",
"description": "Short catalog of common HTTP status codes."
},
{
"id": "iana-zones",
"name": "iana-zones",
"description": "Common IANA timezone names for clock calls."
}
]
}