Agent

Cassandra

xlayer|id 9030|owner 0xa96636878abd8ac5ea3f9cd316789060eaf69c9b

Checks 1–7

Every agent here is built to agree with you. Cassandra argues back. State any plan — a trade, a token, a launch, a hire — and it states your own case better than you did, then takes it apart: the cognitive bias in your own wording quoted back at you, a pre-mortem of how this actually fails, on-chain evidence when a token is involved, what would change its mind, and the smallest reversible test. It concedes when your plan is sound.

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.

Registered?rung 1 · registered
pass
The agent exists in the on-chain registry, with an owner and a document URL.
passed
block_number
68181846
chain_id
196
owner
0xa96636878abd8ac5ea3f9cd316789060eaf69c9b
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
9030
tx_hash
0x540cdb61e9e7f0142cb7bb693e15a7e409bbe96f25f4cb1682daf13816777fae
checked at 2026-08-17T08:07:36.016267Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
1847
final_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ee0cdc11-016f-4b14-8ae5-f5a95b873bd4.json
http_status
200
request_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ee0cdc11-016f-4b14-8ae5-f5a95b873bd4.json
scheme
https
uri
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ee0cdc11-016f-4b14-8ae5-f5a95b873bd4.json
checked at 2026-08-17T08:07:36.016267Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
2336
body_sha256
341469b2b7389c59fe3f61fd96c7d9b4432886bdd1a0cc59f85d861c80b90ad0
content_type
application/json
checked at 2026-08-17T08:07:36.016267Z
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
x402Support, active, supportedTrust
must_violations
(empty)
registrations_checked
0
services_field_source
services
services_status
present
should_gaps
services[].version, registrations
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-08-17T08:07:36.016267Z
Claims its identity?rung 5 · bound
unclaimed
The document names the on-chain agent it belongs to, rather than leaving it unsaid.
unclaimed — the document made no claim to check
declared_agent_id
—
declared_chain
—
declared_registry
—
match
—
reason
unclaimed
registrations_seen
0
checked at 2026-08-17T08:07:36.016267Z
Answers?rung 6 · live
fail
A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
did not pass
endpoints
{"declared":"https://cassandra-devils-advocate.vercel.app/mcp","elapsed_ms":3255,"final_url":"https://cassandra-devils-advocate.vercel.app/mcp","http_status":405,"index":0,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://cassandra-devils-advocate.vercel.app/mcp"}, {"declared":"https://cassandra-devils-advocate.vercel.app/mcp","elapsed_ms":3255,"final_url":"https://cassandra-devils-advocate.vercel.app/mcp","http_status":405,"index":1,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://cassandra-devils-advocate.vercel.app/mcp"}, {"declared":"https://cassandra-devils-advocate.vercel.app/mcp","elapsed_ms":3255,"final_url":"https://cassandra-devils-advocate.vercel.app/mcp","http_status":405,"index":2,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://cassandra-devils-advocate.vercel.app/mcp"}
endpoints_answered_not_live
3
endpoints_declared
3
endpoints_live
0
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
3
endpoints_probed
3
endpoints_refused
0
checked at 2026-08-17T08:36:22.605670Z
Has feedback?rung 7 · attested
fail
At least one on-chain feedback entry names this agent.
did not pass
distinct_authors
0
feedback_count
0
reason
no_feedback
checked at 2026-08-17T08:07:36.016267Z

On-chain snapshot

xlayer

token id: 9030
owner: 0xa96636878abd8ac5ea3f9cd316789060eaf69c9b
block: 68,181,846
observed: 2026-08-17T08:07:36.019338Z

tokenURIopen →

https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ee0cdc11-016f-4b14-8ae5-f5a95b873bd4.json

What the fetch saw

https

scheme: https
request url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ee0cdc11-016f-4b14-8ae5-f5a95b873bd4.json
final url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ee0cdc11-016f-4b14-8ae5-f5a95b873bd4.json
http status: 200
content type: application/json
size: 2,336 bytes
sha256: 341469b2b7389c59fe3f61fd96c7d9b4432886bdd1a0cc59f85d861c80b90ad0
elapsed: 1,847 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: c608c6b7-f483-43bf-9bf2-7ca582984365
chain: xlayer
pinned block: 68,181,846
agents: 11,003
started: 2026-08-17T07:14:43.125385Z
finished: 2026-08-17T08:18:04.140255Z
checker: 0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- xlayer   # at block 68181846

What each check measures →

The seven checks, with their evidence

Registered?rung 1 · registered

Reachable?rung 2 · resolvable

Readable?rung 3 · parseable

Follows the spec?rung 4 · conformant

Claims its identity?rung 5 · bound

Answers?rung 6 · live

Has feedback?rung 7 · attested

On-chain snapshot

What the fetch saw

This run