Arbitrum — the complete, unedited output of the deterministic mcptrustchecker engine v1.13.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.13.0",
"methodologyVersion": "mcptrustchecker-1.13"
},
"target": {
"id": "arbitrum-mcp",
"source": {
"kind": "package",
"origin": "arbitrum-mcp"
},
"server": {
"name": "arbitrum-mcp"
}
},
"grade": "A",
"score": {
"score": 98,
"threatScore": 100,
"grade": "A",
"band": "A",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "client",
"term": "capability-exposure",
"level": "minimal",
"label": "capability blast radius (minimal) — client exposure if the model is manipulated",
"appliedPenalty": 0
},
{
"kind": "client",
"term": "verification-discount",
"level": "none",
"label": "publisher verification (unlinked) — no provenance/repo link, but the shipped source was fully read",
"appliedPenalty": 2
},
{
"kind": "client",
"term": "coverage-honesty",
"level": "source",
"label": "inspection depth (source) — how much of the target the scan could see",
"appliedPenalty": 0
}
],
"gatesFired": [],
"methodologyVersion": "mcptrustchecker-1.13"
},
"capability": {
"level": "minimal",
"reasons": [],
"tags": []
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (38 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command \"npx -y <package>\"."
]
},
"findings": [
{
"ruleId": "MTC-SUP-011",
"title": "Package declares no source repository",
"category": "supply-chain",
"severity": "info",
"confidence": "strong",
"description": "\"arbitrum-mcp\" declares no repository URL, so its published artifact cannot be compared against reviewable source.",
"remediation": "Prefer packages that link to public, reviewable source.",
"location": {
"kind": "package",
"name": "arbitrum-mcp"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "set_rpc_url",
"tags": [],
"reasons": {}
},
{
"tool": "get_rpc_url",
"tags": [],
"reasons": {}
},
{
"tool": "clear_rpc_url",
"tags": [],
"reasons": {}
},
{
"tool": "node_health",
"tags": [],
"reasons": {}
},
{
"tool": "sync_status",
"tags": [],
"reasons": {}
},
{
"tool": "node_peers",
"tags": [],
"reasons": {}
},
{
"tool": "arbos_version",
"tags": [],
"reasons": {}
},
{
"tool": "latest_block",
"tags": [],
"reasons": {}
},
{
"tool": "get_balance",
"tags": [],
"reasons": {}
},
{
"tool": "get_balance_ether",
"tags": [],
"reasons": {}
},
{
"tool": "get_transaction",
"tags": [],
"reasons": {}
},
{
"tool": "get_transaction_receipt",
"tags": [],
"reasons": {}
},
{
"tool": "is_contract",
"tags": [],
"reasons": {}
},
{
"tool": "list_chains",
"tags": [],
"reasons": {}
},
{
"tool": "search_chains",
"tags": [],
"reasons": {}
},
{
"tool": "chain_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_rollup_address",
"tags": [],
"reasons": {}
},
{
"tool": "arb_check_publisher_health",
"tags": [],
"reasons": {}
},
{
"tool": "arb_get_raw_block_metadata",
"tags": [],
"reasons": {}
},
{
"tool": "arb_latest_validated",
"tags": [],
"reasons": {}
},
{
"tool": "arbtrace_call",
"tags": [],
"reasons": {}
},
{
"tool": "arbtrace_callMany",
"tags": [],
"reasons": {}
},
{
"tool": "arbtrace_replayBlockTransactions",
"tags": [],
"reasons": {}
},
{
"tool": "arbtrace_replayTransaction",
"tags": [],
"reasons": {}
},
{
"tool": "arbtrace_transaction",
"tags": [],
"reasons": {}
},
{
"tool": "arbtrace_get",
"tags": [],
"reasons": {}
},
{
"tool": "arbtrace_block",
"tags": [],
"reasons": {}
},
{
"tool": "arbtrace_filter",
"tags": [],
"reasons": {}
},
{
"tool": "arbdebug_validateMessageNumber",
"tags": [],
"reasons": {}
},
{
"tool": "arbdebug_validationInputsAt",
"tags": [],
"reasons": {}
},
{
"tool": "maintenance_status",
"tags": [],
"reasons": {}
},
{
"tool": "maintenance_trigger",
"tags": [],
"reasons": {}
},
{
"tool": "timeboost_sendExpressLaneTransaction",
"tags": [],
"reasons": {}
},
{
"tool": "auctioneer_submitAuctionResolutionTransaction",
"tags": [],
"reasons": {}
},
{
"tool": "batch_posting_status",
"tags": [],
"reasons": {}
},
{
"tool": "assertion_status",
"tags": [],
"reasons": {}
},
{
"tool": "gas_status",
"tags": [],
"reasons": {}
},
{
"tool": "comprehensive_chain_status",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "5f0113c0376e99bbac378be36edc1f36da14e0bcf56661e9b74b5c78d9cec727",
"stats": {
"tools": 38,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 0,
"info": 1
}
}
}