Preflight
xlayer|id 5583|owner 0xd5b0ff3534363027f36856a47af6a4cc9aee776a
Preflight is the safety gate agents call before they sign. It checks tokens, counterparty addresses, and spender contracts, returning an actionable verdict — ALLOW, WARN, or BLOCK — with a 0-100 risk score and plain-language reasons. Callers set their own risk tolerance (strict/balanced/degen). Honeypots, sanctions, and laundering always block. Missing data is treated as risk, never as safety. Disclosed issuer powers on trusted assets are surfaced as advisories rather than false blocks.
The seven checks, with their evidence
7 recordedRegistered?rung 1 · registered
passThe agent exists in the on-chain registry, with an owner and a document URL.
passed
- block_number
- 67576783
- chain_id
- 196
- owner
- 0xd5b0ff3534363027f36856a47af6a4cc9aee776a
- registry
- 0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
- token_id
- 5583
- tx_hash
- 0xfd2a710395e2148218a29c12e990c16afcc930ac751414efc23ec343c45738e0
checked at 2026-08-10T07:44:40.312021Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- elapsed_ms
- 2893
- http_status
- 200
- scheme
- https
checked at 2026-08-10T07:44:40.312021Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1454
- body_sha256
- 7bf1e962eafca17f8fe8ef5f88142a5c146f47fbb73b1e799441d3808580133a
- content_type
- application/json
checked at 2026-08-10T07:44:40.312021Z
Follows the spec?rung 4 · conformant
passThe 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 2026-08-10T07:44:40.312021Z
Claims its identity?rung 5 · bound
unclaimedThe 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 2026-08-10T07:44:40.312021Z
Answers?rung 6 · live
failA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
did not pass
- endpoints
{"declared":"https://preflight-xb20.onrender.com/mcp","elapsed_ms":799,"final_url":"https://preflight-xb20.onrender.com/… (271 chars — expand)
{"declared":"https://preflight-xb20.onrender.com/mcp","elapsed_ms":799,"final_url":"https://preflight-xb20.onrender.com/mcp","http_status":404,"index":0,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://preflight-xb20.onrender.com/mcp"}- 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 2026-08-10T08:28:46.157805Z
Has feedback?rung 7 · attested
failAt least one on-chain feedback entry names this agent.
did not pass
- distinct_authors
- 0
- feedback_count
- 0
- reason
- no_feedback
checked at 2026-08-10T07:44:40.312021Z
Check it again, now
outside the censusOn-chain snapshot
xlayer- token id
- 5583
- owner
- 0xd5b0ff3534363027f36856a47af6a4cc9aee776a
- block
- 67,576,783
- observed
- 2026-08-10T07:44:40.314530Z
What the fetch saw
https- scheme
- https
- http status
- 200
- content type
- application/json
- size
- 1,454 bytes
- sha256
- 7bf1e962eafca17f8fe8ef5f88142a5c146f47fbb73b1e799441d3808580133a
- elapsed
- 2,893 ms
This run
reproducible- run
- ab6e134c-8018-4814-80bb-c83fb79f3710
- chain
- xlayer
- pinned block
- 67,576,783
- agents
- 10,723
- started
- 2026-08-10T07:10:20.176367Z
- finished
- 2026-08-10T08:11:41.005767Z
- checker
- 0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- xlayer # at block 67576783