AgentCount
Sections
Agent

KERNAL

base|id 58161|owner 0x7ad90c892f0929b18f1b8e386785b0a7bd0fb371

Checks 1–7

Kernal is an agent skill registry built specifically for on-chain execution.

Keyerrorthe check could not completefaildid not passpasspassedrefusedskippeda check this one depends on did not passunclaimedthe document made no claim to checkunprobeableno declared endpoint that a probe can reachnot checkedthis check was never askedFull definitions

The seven checks, with their evidence

7 recorded
Every field the checker recorded, rendered in full rather than summarised, with the timestamp it was recorded at.

  1. Registered?rung 1 · registered

    pass

    The agent exists in the on-chain registry, with an owner and a document URL.

    passed

    block_number
    52281733
    chain_id
    8453
    owner
    0x7ad90c892f0929b18f1b8e386785b0a7bd0fb371
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    58161
    tx_hash
    0x83fdea1643a6082763713a317455caa5791049a3d222a5b5028fc627367708e4

    checked at 2026-10-07T15:53:29.111471Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    elapsed_ms
    204
    final_url
    https://api.acp.virtuals.io/agents/019ee5a2-9b66-720d-acd6-f2b2f902a142/erc8004
    http_status
    200
    request_url
    https://api.acp.virtuals.io/agents/019ee5a2-9b66-720d-acd6-f2b2f902a142/erc8004
    scheme
    https
    uri
    https://api.acp.virtuals.io/agents/019ee5a2-9b66-720d-acd6-f2b2f902a142/erc8004

    checked at 2026-10-07T15:53:29.111471Z

  3. Readable?rung 3 · parseable

    pass

    What came back is valid JSON that a machine can read.

    passed

    body_bytes
    12132
    body_sha256
    c263130562b3d2dead4202e8d8b8cd2e48d02f1d13d11f3a34c57ff1daf68ef5
    content_type
    application/json; charset=utf-8

    checked at 2026-10-07T15:53:29.111471Z

  4. Follows the spec?rung 4 · conformant

    pass

    The document meets what ERC-8004 requires of it.

    passed

    both_fields_present
    false
    legacy_endpoints_field
    false
    may_gaps
    (empty)
    must_violations
    (empty)
    registrations_checked
    1
    services_field_source
    services
    services_status
    present
    should_gaps
    services[].version
    spec_commit
    68fc6765761a10fb26f0692df21c8a6f9d12b1be

    checked at 2026-10-07T15:53:29.111471Z

  5. Claims its identity?rung 5 · bound

    fail

    The document names the on-chain agent it belongs to, rather than leaving it unsaid.

    did not pass

    declared_agent_id
    58161
    declared_chain
    8453
    declared_registry
    eip155:8453:0x7ad90c892f0929b18f1b8e386785b0a7bd0fb371
    match
    false
    registrations_seen
    1

    checked at 2026-10-07T15:53:29.111471Z

  6. Answers?rung 6 · live

    pass

    A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.

    passed

    endpoints
    {"declared":"https://app.virtuals.io/acp/agent/019ee5a2-9b66-720d-acd6-f2b2f902a142","elapsed_ms":2005,"final_url":"http… (361 chars — expand){"declared":"https://app.virtuals.io/acp/agent/019ee5a2-9b66-720d-acd6-f2b2f902a142","elapsed_ms":2005,"final_url":"https://app.virtuals.io/acp/agent/019ee5a2-9b66-720d-acd6-f2b2f902a142","http_status":200,"index":0,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://app.virtuals.io/acp/agent/019ee5a2-9b66-720d-acd6-f2b2f902a142"}
    endpoints_answered_not_live
    0
    endpoints_declared
    1
    endpoints_live
    1
    endpoints_our_error
    0
    endpoints_payment_gated
    0
    endpoints_probeable
    1
    endpoints_probed
    1
    endpoints_refused
    0

    checked at 2026-10-07T19:37:51.488079Z

  7. Has feedback?rung 7 · attested

    pass

    At least one on-chain feedback entry names this agent.

    passed

    distinct_authors
    3
    feedback_count
    3

    checked at 2026-10-07T15:53:29.111471Z

Check it again, now

outside the census
Everything above is one sweep, pinned to one block. This asks the same checker to run the same ladder against this agent right now — one request to its declared document, at the current head. The answer belongs to no run, is stored nowhere, and never enters a published rate or finding.
Sends one request to the agent’s own server. Rate limited.

On-chain snapshot

base
token id
58161
owner
0x7ad90c892f0929b18f1b8e386785b0a7bd0fb371
block
52,281,733
observed
2026-10-07T15:53:29.115789Z
tokenURIopen →
https://api.acp.virtuals.io/agents/019ee5a2-9b66-720d-acd6-f2b2f902a142/erc8004

What the fetch saw

https
scheme
https
request url
https://api.acp.virtuals.io/agents/019ee5a2-9b66-720d-acd6-f2b2f902a142/erc8004
final url
https://api.acp.virtuals.io/agents/019ee5a2-9b66-720d-acd6-f2b2f902a142/erc8004
http status
200
content type
application/json; charset=utf-8
size
12,132 bytes
sha256
c263130562b3d2dead4202e8d8b8cd2e48d02f1d13d11f3a34c57ff1daf68ef5
elapsed
204 ms

This run

reproducible
Every status above is scoped to this sweep, at this block. Rerun it and you should get these answers back.
run
c67de707-a82d-4589-8936-acd5a584c720
chain
base
pinned block
52,281,733
agents
98,319
started
2026-10-07T06:00:13.662398Z
finished
2026-10-07T19:18:37.899751Z
checker
0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- base   # at block 52281733

What each check measures →