Acube — the complete, unedited output of the deterministic mcptrustchecker engine v1.8.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.8.0",
"methodologyVersion": "mcptrustchecker-1.8"
},
"target": {
"id": "mcp-server-acube",
"source": {
"kind": "package",
"origin": "mcp-server-acube"
},
"server": {
"name": "mcp-server-acube"
}
},
"grade": "A",
"score": {
"score": 96,
"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": "moderate",
"label": "capability blast radius (moderate) — client exposure if the model is manipulated",
"appliedPenalty": 3
},
{
"kind": "client",
"term": "verification-discount",
"level": "repo",
"label": "publisher verification (public source) — no provenance, but the source is public and inspectable",
"appliedPenalty": 1
},
{
"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-1.8"
},
"capability": {
"level": "moderate",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"can send data / act on an external service"
],
"tags": [
"untrusted-input",
"external-sink"
]
},
"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-FLOW-005",
"title": "Untrusted input can drive an external action",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "Untrusted-input tools ([schedule_invoice_download, get_download_schedule, update_download_schedule, delete_download_schedule, download_invoices_once]) co-exist with external-action tools ([create_webhook_config, update_webhook_config, delete_webhook_config]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.",
"remediation": "Require confirmation for state-changing/egress actions triggered after processing untrusted content.",
"location": {
"kind": "flow",
"name": "schedule_invoice_download → create_webhook_config"
},
"evidence": "untrusted [schedule_invoice_download, get_download_schedule, update_download_schedule, delete_download_schedule, download_invoices_once] → sinks [create_webhook",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"schedule_invoice_download",
"get_download_schedule",
"update_download_schedule",
"delete_download_schedule",
"download_invoices_once"
],
"sinks": [
"create_webhook_config",
"update_webhook_config",
"delete_webhook_config"
]
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"schedule_invoice_download",
"get_download_schedule",
"update_download_schedule",
"delete_download_schedule",
"download_invoices_once"
],
"sensitiveSource": [],
"externalSink": [
"create_webhook_config",
"update_webhook_config",
"delete_webhook_config"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "schedule_invoice_download",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "get_download_schedule",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "update_download_schedule",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "delete_download_schedule",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "download_invoices_once",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "count_rejected_invoices",
"tags": [],
"reasons": {}
},
{
"tool": "recover_rejected_invoices",
"tags": [],
"reasons": {}
},
{
"tool": "list_business_registries",
"tags": [],
"reasons": {}
},
{
"tool": "create_business_registry",
"tags": [],
"reasons": {}
},
{
"tool": "get_business_registry",
"tags": [],
"reasons": {}
},
{
"tool": "update_business_registry",
"tags": [],
"reasons": {}
},
{
"tool": "list_appointees",
"tags": [],
"reasons": {}
},
{
"tool": "create_appointee",
"tags": [],
"reasons": {}
},
{
"tool": "get_appointee",
"tags": [],
"reasons": {}
},
{
"tool": "update_appointee",
"tags": [],
"reasons": {}
},
{
"tool": "extract_invoice_from_pdf",
"tags": [],
"reasons": {}
},
{
"tool": "get_extraction_status",
"tags": [],
"reasons": {}
},
{
"tool": "get_extraction_result",
"tags": [],
"reasons": {}
},
{
"tool": "send_invoice",
"tags": [],
"reasons": {}
},
{
"tool": "send_simplified_invoice",
"tags": [],
"reasons": {}
},
{
"tool": "list_invoices",
"tags": [],
"reasons": {}
},
{
"tool": "get_invoice",
"tags": [],
"reasons": {}
},
{
"tool": "list_notifications",
"tags": [],
"reasons": {}
},
{
"tool": "get_notification",
"tags": [],
"reasons": {}
},
{
"tool": "mark_notifications_downloaded",
"tags": [],
"reasons": {}
},
{
"tool": "send_receipt",
"tags": [],
"reasons": {}
},
{
"tool": "get_receipt_details",
"tags": [],
"reasons": {}
},
{
"tool": "void_receipt",
"tags": [],
"reasons": {}
},
{
"tool": "return_receipt_items",
"tags": [],
"reasons": {}
},
{
"tool": "verify_fiscal_id",
"tags": [],
"reasons": {}
},
{
"tool": "verify_company",
"tags": [],
"reasons": {}
},
{
"tool": "verify_simple_company",
"tags": [],
"reasons": {}
},
{
"tool": "verify_split_payment",
"tags": [],
"reasons": {}
},
{
"tool": "list_webhook_configs",
"tags": [],
"reasons": {}
},
{
"tool": "create_webhook_config",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "get_webhook_config",
"tags": [],
"reasons": {}
},
{
"tool": "update_webhook_config",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "delete_webhook_config",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
}
],
"surfaceDigest": "740cf845202cccc1954da4df685d8634d4d8327977edeba94a4ea726082a0f0a",
"stats": {
"tools": 38,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 1,
"low": 0,
"info": 0
}
}
}