Send16 — 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": "send16-mcp",
"source": {
"kind": "package",
"origin": "send16-mcp"
},
"server": {
"name": "send16-mcp"
}
},
"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": [
"external-sink",
"untrusted-input"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (79 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 ([generate_email_from_url, get_message]) co-exist with external-action tools ([send_email, create_webhook, delete_webhook, regenerate_webhook_secret]). 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": "generate_email_from_url → send_email"
},
"evidence": "untrusted [generate_email_from_url, get_message] → sinks [send_email, create_webhook, delete_webhook, regenerate_webhook_secret]",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"generate_email_from_url",
"get_message"
],
"sinks": [
"send_email",
"create_webhook",
"delete_webhook",
"regenerate_webhook_secret"
]
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"generate_email_from_url",
"get_message"
],
"sensitiveSource": [],
"externalSink": [
"send_email",
"create_webhook",
"delete_webhook",
"regenerate_webhook_secret"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "whoami",
"tags": [],
"reasons": {}
},
{
"tool": "send_email",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"send_email\""
]
}
},
{
"tool": "send_campaign_test",
"tags": [],
"reasons": {}
},
{
"tool": "create_campaign",
"tags": [],
"reasons": {}
},
{
"tool": "design_email_template",
"tags": [],
"reasons": {}
},
{
"tool": "list_campaigns",
"tags": [],
"reasons": {}
},
{
"tool": "create_contact",
"tags": [],
"reasons": {}
},
{
"tool": "search_contacts",
"tags": [],
"reasons": {}
},
{
"tool": "list_contacts",
"tags": [],
"reasons": {}
},
{
"tool": "import_contacts",
"tags": [],
"reasons": {}
},
{
"tool": "list_domains",
"tags": [],
"reasons": {}
},
{
"tool": "check_domain_health",
"tags": [],
"reasons": {}
},
{
"tool": "get_campaign_stats",
"tags": [],
"reasons": {}
},
{
"tool": "get_deliverability_status",
"tags": [],
"reasons": {}
},
{
"tool": "list_automations",
"tags": [],
"reasons": {}
},
{
"tool": "get_automation",
"tags": [],
"reasons": {}
},
{
"tool": "enroll_in_automation",
"tags": [],
"reasons": {}
},
{
"tool": "send_event",
"tags": [],
"reasons": {}
},
{
"tool": "list_templates",
"tags": [],
"reasons": {}
},
{
"tool": "get_template",
"tags": [],
"reasons": {}
},
{
"tool": "render_email_content",
"tags": [],
"reasons": {}
},
{
"tool": "add_domain",
"tags": [],
"reasons": {}
},
{
"tool": "pre_send_review",
"tags": [],
"reasons": {}
},
{
"tool": "generate_email_from_url",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"scrape\""
]
}
},
{
"tool": "list_messages",
"tags": [],
"reasons": {}
},
{
"tool": "get_message",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "get_message_events",
"tags": [],
"reasons": {}
},
{
"tool": "list_convos",
"tags": [],
"reasons": {}
},
{
"tool": "get_convo",
"tags": [],
"reasons": {}
},
{
"tool": "send_reply",
"tags": [],
"reasons": {}
},
{
"tool": "mark_convo_read",
"tags": [],
"reasons": {}
},
{
"tool": "update_convo",
"tags": [],
"reasons": {}
},
{
"tool": "add_convo_note",
"tags": [],
"reasons": {}
},
{
"tool": "screener_decide",
"tags": [],
"reasons": {}
},
{
"tool": "list_inbox_counts",
"tags": [],
"reasons": {}
},
{
"tool": "list_topics",
"tags": [],
"reasons": {}
},
{
"tool": "create_topic",
"tags": [],
"reasons": {}
},
{
"tool": "update_topic",
"tags": [],
"reasons": {}
},
{
"tool": "delete_topic",
"tags": [],
"reasons": {}
},
{
"tool": "list_actions",
"tags": [],
"reasons": {}
},
{
"tool": "get_action",
"tags": [],
"reasons": {}
},
{
"tool": "create_action",
"tags": [],
"reasons": {}
},
{
"tool": "update_action",
"tags": [],
"reasons": {}
},
{
"tool": "delete_action",
"tags": [],
"reasons": {}
},
{
"tool": "list_audiences",
"tags": [],
"reasons": {}
},
{
"tool": "create_audience",
"tags": [],
"reasons": {}
},
{
"tool": "add_contacts_to_audience",
"tags": [],
"reasons": {}
},
{
"tool": "remove_contact_from_audience",
"tags": [],
"reasons": {}
},
{
"tool": "delete_audience",
"tags": [],
"reasons": {}
},
{
"tool": "list_segments",
"tags": [],
"reasons": {}
},
{
"tool": "preview_segment",
"tags": [],
"reasons": {}
},
{
"tool": "update_contact",
"tags": [],
"reasons": {}
},
{
"tool": "delete_contact",
"tags": [],
"reasons": {}
},
{
"tool": "get_contact_timeline",
"tags": [],
"reasons": {}
},
{
"tool": "get_contact_health_score",
"tags": [],
"reasons": {}
},
{
"tool": "send_broadcast",
"tags": [],
"reasons": {}
},
{
"tool": "schedule_campaign",
"tags": [],
"reasons": {}
},
{
"tool": "update_campaign",
"tags": [],
"reasons": {}
},
{
"tool": "pause_campaign",
"tags": [],
"reasons": {}
},
{
"tool": "resume_campaign",
"tags": [],
"reasons": {}
},
{
"tool": "duplicate_campaign",
"tags": [],
"reasons": {}
},
{
"tool": "delete_campaign",
"tags": [],
"reasons": {}
},
{
"tool": "preview_campaign_recipients",
"tags": [],
"reasons": {}
},
{
"tool": "activate_automation",
"tags": [],
"reasons": {}
},
{
"tool": "pause_automation",
"tags": [],
"reasons": {}
},
{
"tool": "get_automation_stats",
"tags": [],
"reasons": {}
},
{
"tool": "list_automation_enrollments",
"tags": [],
"reasons": {}
},
{
"tool": "list_workspaces",
"tags": [],
"reasons": {}
},
{
"tool": "get_workspace",
"tags": [],
"reasons": {}
},
{
"tool": "get_brand",
"tags": [],
"reasons": {}
},
{
"tool": "update_brand",
"tags": [],
"reasons": {}
},
{
"tool": "get_workspace_usage",
"tags": [],
"reasons": {}
},
{
"tool": "list_suppressions",
"tags": [],
"reasons": {}
},
{
"tool": "add_suppression",
"tags": [],
"reasons": {}
},
{
"tool": "remove_suppression",
"tags": [],
"reasons": {}
},
{
"tool": "list_webhooks",
"tags": [],
"reasons": {}
},
{
"tool": "create_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "delete_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "regenerate_webhook_secret",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
}
],
"surfaceDigest": "736bfa67993c3a35441f55e9087762506952222798f111f42f7f5594dfb8fddd",
"stats": {
"tools": 79,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 1,
"low": 0,
"info": 0
}
}
}