Lune — 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": "@retrograde-labs/lune-mcp-server",
"source": {
"kind": "package",
"origin": "@retrograde-labs/lune-mcp-server"
},
"server": {
"name": "@retrograde-labs/lune-mcp-server"
}
},
"grade": "B",
"score": {
"score": 81,
"threatScore": 85,
"grade": "B",
"band": "B",
"categorySubtotals": {
"injection": 15.4,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"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": "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)"
],
"tags": [
"untrusted-input"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (29 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-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 \"search_papers_many\". 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": "search_papers_many",
"field": "description"
},
"evidence": "do not show it to the user",
"owasp": "LLM01:2025 Prompt Injection",
"data": {
"kind": "secrecy"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "literature_review",
"tags": [],
"reasons": {}
},
{
"tool": "topic",
"tags": [],
"reasons": {}
},
{
"tool": "venues",
"tags": [],
"reasons": {}
},
{
"tool": "since_year",
"tags": [],
"reasons": {}
},
{
"tool": "find_related_work",
"tags": [],
"reasons": {}
},
{
"tool": "abstract",
"tags": [],
"reasons": {}
},
{
"tool": "compare_papers",
"tags": [],
"reasons": {}
},
{
"tool": "columns",
"tags": [],
"reasons": {}
},
{
"tool": "verify_draft",
"tags": [],
"reasons": {}
},
{
"tool": "draft",
"tags": [],
"reasons": {}
},
{
"tool": "trace_citations",
"tags": [],
"reasons": {}
},
{
"tool": "paper",
"tags": [],
"reasons": {}
},
{
"tool": "research_methodology",
"tags": [],
"reasons": {}
},
{
"tool": "question",
"tags": [],
"reasons": {}
},
{
"tool": "search_papers",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "search_papers_many",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "get_paper_fulltext",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "get_paper_citations",
"tags": [],
"reasons": {}
},
{
"tool": "list_conferences",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"browse\""
]
}
},
{
"tool": "get_conference_papers",
"tags": [],
"reasons": {}
},
{
"tool": "search_related_papers",
"tags": [],
"reasons": {}
},
{
"tool": "extract_from_papers",
"tags": [],
"reasons": {}
},
{
"tool": "verify_claims",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "gather_evidence",
"tags": [],
"reasons": {}
},
{
"tool": "search_research_guidance",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"web_search\""
]
}
},
{
"tool": "get_research_guidance_doc",
"tags": [],
"reasons": {}
},
{
"tool": "get_more_tools",
"tags": [],
"reasons": {}
},
{
"tool": "LUNE_API_KEY",
"tags": [],
"reasons": {}
},
{
"tool": "Authorization",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "e7341a06e6b7e062b1e6cf228c31eb9b740aa6c1c20a723560b4b29ff6904971",
"stats": {
"tools": 29,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 0,
"low": 0,
"info": 0
}
}
}