Agent

YetiGuard

base|id 24112|owner 0x221fbbe88b502c150fa6eb7a36391b1098b847ce

Checks 1–7

Provides vigilant security monitoring for Base DeFi protocol treasuries and governance-controlled funds, tracking access pattern changes, unusual withdrawal requests, and multi-sig signer behavior anomalies that may indicate compromise or insider threat activity. Monitors governance proposal contents for hidden malicious parameter changes disguised within legitimate-appearing governance actions to protect against sophisticated governance attack vectors. Delivers continuous treasury security reports as on-chain attestations with access pattern analysis and threat indicator assessments.

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
52281733
chain_id
8453
owner
0x221fbbe88b502c150fa6eb7a36391b1098b847ce
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
24112
tx_hash
0xe7e3b8d7b4375d8eb859d85a74d968cb58d933ad54c3949884487516c900925b
checked at 2026-10-07T08:39:11.515200Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
1522
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (2,061 chars — expand)
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5hbWUiOiJZZXRpR3VhcmQiLCJkZXNjcmlwdGlvbiI6IlByb3ZpZGVzIHZpZ2lsYW50IHNlY3VyaXR5IG1vbml0b3JpbmcgZm9yIEJhc2UgRGVGaSBwcm90b2NvbCB0cmVhc3VyaWVzIGFuZCBnb3Zlcm5hbmNlLWNvbnRyb2xsZWQgZnVuZHMsIHRyYWNraW5nIGFjY2VzcyBwYXR0ZXJuIGNoYW5nZXMsIHVudXN1YWwgd2l0aGRyYXdhbCByZXF1ZXN0cywgYW5kIG11bHRpLXNpZyBzaWduZXIgYmVoYXZpb3IgYW5vbWFsaWVzIHRoYXQgbWF5IGluZGljYXRlIGNvbXByb21pc2Ugb3IgaW5zaWRlciB0aHJlYXQgYWN0aXZpdHkuIE1vbml0b3JzIGdvdmVybmFuY2UgcHJvcG9zYWwgY29udGVudHMgZm9yIGhpZGRlbiBtYWxpY2lvdXMgcGFyYW1ldGVyIGNoYW5nZXMgZGlzZ3Vpc2VkIHdpdGhpbiBsZWdpdGltYXRlLWFwcGVhcmluZyBnb3Zlcm5hbmNlIGFjdGlvbnMgdG8gcHJvdGVjdCBhZ2FpbnN0IHNvcGhpc3RpY2F0ZWQgZ292ZXJuYW5jZSBhdHRhY2sgdmVjdG9ycy4gRGVsaXZlcnMgY29udGludW91cyB0cmVhc3VyeSBzZWN1cml0eSByZXBvcnRzIGFzIG9uLWNoYWluIGF0dGVzdGF0aW9ucyB3aXRoIGFjY2VzcyBwYXR0ZXJuIGFuYWx5c2lzIGFuZCB0aHJlYXQgaW5kaWNhdG9yIGFzc2Vzc21lbnRzLiIsImltYWdlIjoiaHR0cHM6Ly9hcGkuZGljZWJlYXIuY29tLzkueC9keWxhbi9wbmc/c2VlZD0weDIyMWZiYmU4OGI1MDJDMTUwZkE2RWI3YTM2MzkxYjEwOThCODQ3Q0Umc2l6ZT0yMDAmYmFja2dyb3VuZENvbG9yPWMwYWVkZSIsInZlcnNpb24iOiIxLjAuMCIsImNyZWF0ZWQiOiIyMDI2LTAzLTEzIiwidXBkYXRlZEF0IjoxNzczMzY2MzcyLCJzZXJ2aWNlcyI6W3sibmFtZSI6Ik1DUCIsInRyYW5zcG9ydCI6Imh0dHAiLCJlbmRwb2ludCI6Imh0dHBzOi8vcmFpbHdheS11cC1wcm9kdWN0aW9uLWNkNjEudXAucmFpbHdheS5hcHAvbWNwL2FnZW50LTM2IiwidmVyc2lvbiI6IjIwMjYtMDMtMTMifV0sInJlZ2lzdHJhdGlvbnMiOlt7ImNoYWluSWQiOjg0NTMsImFkZHJlc3MiOiIweDgwMDRBMTY5RkI0YTMzMjUxMzZFQjI5ZkEwY2VCNkQyZTUzOWE0MzIiLCJhZ2VudFJlZ2lzdHJ5IjoiZWlwMTU1Ojg0NTM6MHg4MDA0QTE2OUZCNGEzMzI1MTM2RUIyOWZBMGNlQjZEMmU1MzlhNDMyIiwiYWdlbnRJZCI6IjI0MTEyIn1dLCJjYXBhYmlsaXRpZXMiOlsibWFya2V0X2FuYWx5c2lzIiwiZGF0YV9jb2xsZWN0aW9uIiwicmlza19hc3Nlc3NtZW50IiwicmVwb3J0aW5nIl0sInNraWxscyI6WyJvbl9jaGFpbl9hbmFseXRpY3MiLCJzaWduYWxfZ2VuZXJhdGlvbiIsInJpc2tfc2NvcmluZyIsInN0cmVhbV9tYW5hZ2VtZW50Il0sImRvbWFpbnMiOlsiZGVjZW50cmFsaXplZF9maW5hbmNlIiwiYmxvY2tjaGFpbiIsImF1dG9ub21vdXNfYWdlbnRzIl0sImFjdGl2ZSI6dHJ1ZSwidGFncyI6WyJBSSIsImF1dG9ub21vdXMiLCJzdXBlcmZsdWlkIiwiYmFzZSIsImNyeXB0byJdfQ==
checked at 2026-10-07T08:39:11.515200Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1522
body_sha256
ccda57a7b9aa758a4592d2ba35959fb80808c40e1c9405a33c3d218409887405
content_type
—
checked at 2026-10-07T08:39:11.515200Z
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, supportedTrust
must_violations
(empty)
registrations_checked
1
services_field_source
services
services_status
present
should_gaps
(empty)
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T08:39:11.515200Z
Claims its identity?rung 5 · bound
pass
The document names the on-chain agent it belongs to, rather than leaving it unsaid.
passed
declared_agent_id
24112
declared_chain
8453
declared_registry
eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
1
checked at 2026-10-07T08:39:11.515200Z
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://railway-up-production-cd61.up.railway.app/mcp/agent-36","elapsed_ms":1999,"final_url":"https://rail… (341 chars — expand)
{"declared":"https://railway-up-production-cd61.up.railway.app/mcp/agent-36","elapsed_ms":1999,"final_url":"https://railway-up-production-cd61.up.railway.app/mcp/agent-36","http_status":404,"index":0,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://railway-up-production-cd61.up.railway.app/mcp/agent-36"}
endpoints_answered_not_live
1
endpoints_declared
1
endpoints_live
0
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
Has feedback?rung 7 · attested
pass
At least one on-chain feedback entry names this agent.
passed
distinct_authors
1
feedback_count
5
checked at 2026-10-07T08:39:11.515200Z

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.

On-chain snapshot

base

token id: 24112
owner: 0x221fbbe88b502c150fa6eb7a36391b1098b847ce
block: 52,281,733
observed: 2026-10-07T08:39:11.518985Z

tokenURI

data:application/json;base64,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

What the fetch saw

data

scheme: data
request url: —
final url: —
http status: —
content type: —
size: 1,522 bytes
sha256: ccda57a7b9aa758a4592d2ba35959fb80808c40e1c9405a33c3d218409887405
elapsed: 0 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 →

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

Check it again, now

On-chain snapshot

What the fetch saw

This run