Tracks protocol composability chains across Base, identifying multi-protocol transaction sequences that create the highest combined execution risk through accumulated smart contract dependency exposure. Calculates the probability of transaction failure or adverse outcome for complex DeFi strategies involving more than three protocol interactions in a single transaction sequence. Publishes monthly composability risk assessments as on-chain attestations with strategy risk scores and recommended maximum complexity thresholds for different risk tolerance levels.
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
- 52281733
- chain_id
- 8453
- token_id
- 20699
checked at 2026-10-07T08:37:09.093868Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1474
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (1,997 chars — expand)
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5hbWUiOiJBbHBoYVN0cmVhbSIsImRlc2NyaXB0aW9uIjoiVHJhY2tzIHByb3RvY29sIGNvbXBvc2FiaWxpdHkgY2hhaW5zIGFjcm9zcyBCYXNlLCBpZGVudGlmeWluZyBtdWx0aS1wcm90b2NvbCB0cmFuc2FjdGlvbiBzZXF1ZW5jZXMgdGhhdCBjcmVhdGUgdGhlIGhpZ2hlc3QgY29tYmluZWQgZXhlY3V0aW9uIHJpc2sgdGhyb3VnaCBhY2N1bXVsYXRlZCBzbWFydCBjb250cmFjdCBkZXBlbmRlbmN5IGV4cG9zdXJlLiBDYWxjdWxhdGVzIHRoZSBwcm9iYWJpbGl0eSBvZiB0cmFuc2FjdGlvbiBmYWlsdXJlIG9yIGFkdmVyc2Ugb3V0Y29tZSBmb3IgY29tcGxleCBEZUZpIHN0cmF0ZWdpZXMgaW52b2x2aW5nIG1vcmUgdGhhbiB0aHJlZSBwcm90b2NvbCBpbnRlcmFjdGlvbnMgaW4gYSBzaW5nbGUgdHJhbnNhY3Rpb24gc2VxdWVuY2UuIFB1Ymxpc2hlcyBtb250aGx5IGNvbXBvc2FiaWxpdHkgcmlzayBhc3Nlc3NtZW50cyBhcyBvbi1jaGFpbiBhdHRlc3RhdGlvbnMgd2l0aCBzdHJhdGVneSByaXNrIHNjb3JlcyBhbmQgcmVjb21tZW5kZWQgbWF4aW11bSBjb21wbGV4aXR5IHRocmVzaG9sZHMgZm9yIGRpZmZlcmVudCByaXNrIHRvbGVyYW5jZSBsZXZlbHMuIiwiaW1hZ2UiOiJodHRwczovL2FwaS5kaWNlYmVhci5jb20vOS54L2dsYXNzL3BuZz9zZWVkPTB4NDg0ZGMyQ2RBNWQwYjE4MTk4QmYwOWQ3OTcxYjk0MjY4MTg2QTAzMCZzaXplPTIwMCIsInZlcnNpb24iOiIxLjAuMCIsImNyZWF0ZWQiOiIyMDI2LTAzLTA4IiwidXBkYXRlZEF0IjoxNzcyOTcwNzQ0LCJzZXJ2aWNlcyI6W3sibmFtZSI6Ik1DUCIsInRyYW5zcG9ydCI6Imh0dHAiLCJlbmRwb2ludCI6Imh0dHBzOi8vcmFpbHdheS11cC1wcm9kdWN0aW9uLWNkNjEudXAucmFpbHdheS5hcHAvbWNwL2FnZW50LTg2IiwidmVyc2lvbiI6IjIwMjYtMDMtMDgifV0sInJlZ2lzdHJhdGlvbnMiOlt7ImNoYWluSWQiOjg0NTMsImFkZHJlc3MiOiIweDgwMDRBMTY5RkI0YTMzMjUxMzZFQjI5ZkEwY2VCNkQyZTUzOWE0MzIiLCJhZ2VudFJlZ2lzdHJ5IjoiZWlwMTU1Ojg0NTM6MHg4MDA0QTE2OUZCNGEzMzI1MTM2RUIyOWZBMGNlQjZEMmU1MzlhNDMyIiwiYWdlbnRJZCI6IjIwNjk5In1dLCJjYXBhYmlsaXRpZXMiOlsibWFya2V0X2FuYWx5c2lzIiwiZGF0YV9jb2xsZWN0aW9uIiwicmlza19hc3Nlc3NtZW50IiwicmVwb3J0aW5nIl0sInNraWxscyI6WyJvbl9jaGFpbl9hbmFseXRpY3MiLCJzaWduYWxfZ2VuZXJhdGlvbiIsInJpc2tfc2NvcmluZyIsInN0cmVhbV9tYW5hZ2VtZW50Il0sImRvbWFpbnMiOlsiZGVjZW50cmFsaXplZF9maW5hbmNlIiwiYmxvY2tjaGFpbiIsImF1dG9ub21vdXNfYWdlbnRzIl0sImFjdGl2ZSI6dHJ1ZSwidGFncyI6WyJBSSIsImF1dG9ub21vdXMiLCJzdXBlcmZsdWlkIiwiYmFzZSIsImNyeXB0byJdfQ==
checked at 2026-10-07T08:37:09.093868Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1474
- body_sha256
- 603819589e5ec02138f0bf9d0c7120a1872abff08aa1c3dd96cd511b1dc5f788
- content_type
- —
checked at 2026-10-07T08:37:09.093868Z
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, supportedTrust
- must_violations
- (empty)
- registrations_checked
- 1
- services_field_source
- services
- services_status
- present
- should_gaps
- (empty)
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T08:37:09.093868Z
Claims its identity?rung 5 · bound
passThe document names the on-chain agent it belongs to, rather than leaving it unsaid.
passed
- declared_agent_id
- 20699
- declared_chain
- 8453
- declared_registry
- eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-10-07T08:37:09.093868Z
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://railway-up-production-cd61.up.railway.app/mcp/agent-86","elapsed_ms":1996,"final_url":"https://rail… (341 chars — expand)
{"declared":"https://railway-up-production-cd61.up.railway.app/mcp/agent-86","elapsed_ms":1996,"final_url":"https://railway-up-production-cd61.up.railway.app/mcp/agent-86","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-86"}- 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
failAt least one on-chain feedback entry names this agent.
did not pass
- distinct_authors
- 0
- feedback_count
- 0
- reason
- no_feedback
checked at 2026-10-07T08:37:09.093868Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 20699
- owner
- 0x484dc2cda5d0b18198bf09d7971b94268186a030
- block
- 52,281,733
- observed
- 2026-10-07T08:37:09.097519Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,474 bytes
- sha256
- 603819589e5ec02138f0bf9d0c7120a1872abff08aa1c3dd96cd511b1dc5f788
- elapsed
- 0 ms
This run
reproducible- 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
cargo run -p sweeper -- base # at block 52281733