Atom — Premium Domains — 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": "https://mcp.atom.com/mcp",
"source": {
"kind": "http",
"origin": "https://mcp.atom.com/mcp"
},
"server": {
"name": "atom-marketplace-mcp-server",
"version": "2.0.0"
}
},
"grade": "F",
"score": {
"score": 50,
"threatScore": 53,
"grade": "F",
"band": "F",
"gateCap": "D",
"categorySubtotals": {
"injection": 46.9,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "threat",
"ruleId": "MTC-INJ-POISON",
"category": "injection",
"severity": "critical",
"confidence": "strong",
"rawWeight": 45,
"confidenceMult": 0.7,
"diminishingFactor": 1,
"appliedPenalty": 31.5
},
{
"kind": "threat",
"ruleId": "MTC-INJ-SECRECY-1",
"category": "injection",
"severity": "high",
"confidence": "strong",
"rawWeight": 22,
"confidenceMult": 0.7,
"diminishingFactor": 1,
"appliedPenalty": 15.4
},
{
"kind": "client",
"term": "capability-exposure",
"level": "moderate",
"label": "capability blast radius (moderate) — client exposure if the model is manipulated",
"appliedPenalty": 3
},
{
"kind": "client",
"term": "coverage-honesty",
"level": "live",
"label": "inspection depth (live) — how much of the target the scan could see",
"appliedPenalty": 0
}
],
"gatesFired": [
"a critical finding is present → grade capped at D"
],
"methodologyVersion": "mcptrustchecker-1.13"
},
"capability": {
"level": "moderate",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)"
],
"tags": [
"untrusted-input"
]
},
"coverage": {
"level": "live",
"inputs": {
"toolSurface": true,
"implementationSource": false,
"packageMetadata": false,
"liveTransport": true
},
"caveats": []
},
"findings": [
{
"ruleId": "MTC-INJ-POISON",
"title": "Compound tool-poisoning pattern",
"category": "injection",
"severity": "critical",
"confidence": "strong",
"description": "Multiple tool-poisoning signals co-occur in a single field (authority, secrecy), including a concealment / override / sensitive-target directive. Together they form an instruction aimed at the model — the canonical tool-poisoning shape, not ordinary documentation.",
"remediation": "Do not install this server; the metadata is engineered to manipulate the assistant.",
"location": {
"kind": "tool",
"name": "buy_ai_tokens",
"field": "description"
},
"evidence": "Purchase AI Tokens ($0.10 per token) by charging a Stripe Shared Payment Token (SPT) — for users with no Atom balance. This SPENDS REAL MONEY and requires the 'domains:register' scope.\n\nMANDATORY thre",
"owasp": "LLM01:2025 Prompt Injection",
"data": {
"kinds": [
"authority",
"secrecy"
]
}
},
{
"ruleId": "MTC-INJ-SECRECY-1",
"title": "Secrecy directive (conceal action from the user)",
"category": "injection",
"severity": "high",
"confidence": "strong",
"description": "Secrecy directive (conceal action from the user) detected in the description of tool \"buy_ai_tokens\". Instruction-like content in tool metadata is executed by the model, not the human, and is the primary tool-poisoning vector.",
"remediation": "Tool descriptions should describe behavior, not instruct the assistant. Treat imperative / secrecy / sequencing language in metadata as hostile.",
"location": {
"kind": "tool",
"name": "buy_ai_tokens",
"field": "description"
},
"evidence": "do not tell the user",
"owasp": "LLM01:2025 Prompt Injection",
"data": {
"kind": "secrecy"
}
},
{
"ruleId": "MTC-NET-005",
"title": "Remote HTTP MCP endpoint",
"category": "network",
"severity": "info",
"confidence": "strong",
"description": "Remote endpoint mcp.atom.com. MCP Trust Checker does not test server-side authentication/authorization; verify the endpoint requires auth.",
"location": {
"kind": "transport"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "brainstorm_names",
"tags": [],
"reasons": {}
},
{
"tool": "search_brandable_domains",
"tags": [],
"reasons": {}
},
{
"tool": "check_domain_availability",
"tags": [],
"reasons": {}
},
{
"tool": "generate_domain_names",
"tags": [],
"reasons": {}
},
{
"tool": "appraise_domain",
"tags": [],
"reasons": {}
},
{
"tool": "get_domain_details",
"tags": [],
"reasons": {}
},
{
"tool": "screen_trademark_conflicts",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"web_search\""
]
}
},
{
"tool": "get_checkout_link",
"tags": [],
"reasons": {}
},
{
"tool": "register_domain",
"tags": [],
"reasons": {}
},
{
"tool": "purchase_domain",
"tags": [],
"reasons": {}
},
{
"tool": "register_domain_spt",
"tags": [],
"reasons": {}
},
{
"tool": "buy_ai_tokens",
"tags": [],
"reasons": {}
},
{
"tool": "get_ai_tokens_pay_link",
"tags": [],
"reasons": {}
},
{
"tool": "get_domain_register_pay_link",
"tags": [],
"reasons": {}
},
{
"tool": "get_domain_purchase_pay_link",
"tags": [],
"reasons": {}
},
{
"tool": "create_registrant_contact",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "c0d1551dca11562fc4971a44730dcdaee68c0afa5492e687a0742bf8e3f793c8",
"stats": {
"tools": 16,
"prompts": 0,
"resources": 1,
"findingsBySeverity": {
"critical": 1,
"high": 1,
"medium": 0,
"low": 0,
"info": 1
}
}
}