Kabuzz — 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": "@kabuzz/mcp-server",
"source": {
"kind": "package",
"origin": "@kabuzz/mcp-server"
},
"server": {
"name": "@kabuzz/mcp-server"
}
},
"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-1.13"
},
"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 (49 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 ([search_listings, get_thread_messages, get_unread_count]) co-exist with external-action tools ([send_message]). 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": "search_listings → send_message"
},
"evidence": "untrusted [search_listings, get_thread_messages, get_unread_count] → sinks [send_message]",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"search_listings",
"get_thread_messages",
"get_unread_count"
],
"sinks": [
"send_message"
]
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"search_listings",
"get_thread_messages",
"get_unread_count"
],
"sensitiveSource": [],
"externalSink": [
"send_message"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "search_listings",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"browse\""
]
}
},
{
"tool": "get_listing",
"tags": [],
"reasons": {}
},
{
"tool": "get_categories",
"tags": [],
"reasons": {}
},
{
"tool": "get_shipping_estimate",
"tags": [],
"reasons": {}
},
{
"tool": "get_photo_upload_urls",
"tags": [],
"reasons": {}
},
{
"tool": "create_listing",
"tags": [],
"reasons": {}
},
{
"tool": "get_my_listings",
"tags": [],
"reasons": {}
},
{
"tool": "get_my_listing_detail",
"tags": [],
"reasons": {}
},
{
"tool": "update_listing",
"tags": [],
"reasons": {}
},
{
"tool": "archive_listing",
"tags": [],
"reasons": {}
},
{
"tool": "watch_listing",
"tags": [],
"reasons": {}
},
{
"tool": "unwatch_listing",
"tags": [],
"reasons": {}
},
{
"tool": "get_watched_listings",
"tags": [],
"reasons": {}
},
{
"tool": "make_offer",
"tags": [],
"reasons": {}
},
{
"tool": "counter_offer",
"tags": [],
"reasons": {}
},
{
"tool": "accept_offer",
"tags": [],
"reasons": {}
},
{
"tool": "reject_offer",
"tags": [],
"reasons": {}
},
{
"tool": "withdraw_offer",
"tags": [],
"reasons": {}
},
{
"tool": "get_offer",
"tags": [],
"reasons": {}
},
{
"tool": "get_active_offer",
"tags": [],
"reasons": {}
},
{
"tool": "get_buyer_offers",
"tags": [],
"reasons": {}
},
{
"tool": "get_seller_offers",
"tags": [],
"reasons": {}
},
{
"tool": "purchase_listing",
"tags": [],
"reasons": {}
},
{
"tool": "estimate_fees",
"tags": [],
"reasons": {}
},
{
"tool": "get_spending_summary",
"tags": [],
"reasons": {}
},
{
"tool": "send_message",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"send_message\""
]
}
},
{
"tool": "reply_to_thread",
"tags": [],
"reasons": {}
},
{
"tool": "get_threads",
"tags": [],
"reasons": {}
},
{
"tool": "get_thread_messages",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"read_message\""
]
}
},
{
"tool": "get_unread_count",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"read_message\""
]
}
},
{
"tool": "initiate_onboarding",
"tags": [],
"reasons": {}
},
{
"tool": "check_onboarding_status",
"tags": [],
"reasons": {}
},
{
"tool": "get_orders",
"tags": [],
"reasons": {}
},
{
"tool": "get_order_detail",
"tags": [],
"reasons": {}
},
{
"tool": "get_order_events",
"tags": [],
"reasons": {}
},
{
"tool": "get_order_shipping",
"tags": [],
"reasons": {}
},
{
"tool": "mark_order_shipped",
"tags": [],
"reasons": {}
},
{
"tool": "cancel_order",
"tags": [],
"reasons": {}
},
{
"tool": "confirm_delivery",
"tags": [],
"reasons": {}
},
{
"tool": "confirm_local_pickup",
"tags": [],
"reasons": {}
},
{
"tool": "get_order_shipping_rates",
"tags": [],
"reasons": {}
},
{
"tool": "purchase_shipping_label",
"tags": [],
"reasons": {}
},
{
"tool": "record_manual_shipment",
"tags": [],
"reasons": {}
},
{
"tool": "list_payment_methods",
"tags": [],
"reasons": {}
},
{
"tool": "create_setup_intent",
"tags": [],
"reasons": {}
},
{
"tool": "confirm_payment_method",
"tags": [],
"reasons": {}
},
{
"tool": "set_default_payment_method",
"tags": [],
"reasons": {}
},
{
"tool": "remove_payment_method",
"tags": [],
"reasons": {}
},
{
"tool": "is_watching",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "307e9959263607ea7c4732ebade5a99bf8c02f37dd0cc9f299ffffcdc76110f8",
"stats": {
"tools": 49,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 1,
"low": 0,
"info": 0
}
}
}