Sad — 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": "sad-mcp",
"source": {
"kind": "package",
"origin": "sad-mcp"
},
"server": {
"name": "sad-mcp"
}
},
"grade": "A",
"score": {
"score": 94,
"threatScore": 99,
"grade": "A",
"band": "A",
"categorySubtotals": {
"injection": 0,
"exfiltration": 1.2,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "threat",
"ruleId": "MTC-SRC-008",
"category": "exfiltration",
"severity": "low",
"confidence": "heuristic",
"rawWeight": 3,
"confidenceMult": 0.4,
"diminishingFactor": 1,
"appliedPenalty": 1.2
},
{
"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": "none",
"label": "publisher verification (unlinked) — no provenance/repo link, but the shipped source was fully read",
"appliedPenalty": 2
},
{
"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 create, modify or delete files"
],
"tags": [
"untrusted-input",
"file-write"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (16 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-CAP-002",
"title": "Tool \"uml_write_file\" can modify the filesystem",
"category": "permissions",
"severity": "medium",
"confidence": "strong",
"description": "Tool \"uml_write_file\" can write, overwrite or delete files (keyword \"write_file\" in tool name). Verify it is scoped to a safe directory.",
"remediation": "Constrain file operations to an explicit, non-sensitive root; reject path traversal.",
"location": {
"kind": "tool",
"name": "uml_write_file"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-SRC-008",
"title": "Hardcoded Google API key in server code (dist/drive.js)",
"category": "exfiltration",
"severity": "low",
"confidence": "heuristic",
"description": "A hardcoded Google API key (a client API key (restricted by referrer/quota, not a private secret)) appears in `dist/drive.js:15`. Verify whether this is a real credential; if so, remove and rotate it.",
"remediation": "Remove the secret, rotate it, and load credentials from the environment or a secret store.",
"location": {
"kind": "server",
"name": "dist/drive.js"
},
"evidence": "Google API key: AIza…(redacted)",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"data": {
"secretType": "google-api-key",
"file": "dist/drive.js",
"line": 15
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"uml_write_file\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"uml_write_file\" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.",
"remediation": "Declare accurate annotations, and gate destructive tools on user confirmation regardless.",
"location": {
"kind": "tool",
"name": "uml_write_file"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-008",
"title": "Unconstrained path parameter \"filename\" on \"uml_write_file\"",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"uml_write_file\" takes a path parameter \"filename\" with no constraint. Without a canonicalize-and-contain check (not visible statically), this permits ../ traversal outside the intended root.",
"remediation": "Resolve and verify the path stays within an allowed root; reject traversal sequences.",
"location": {
"kind": "tool",
"name": "uml_write_file",
"field": "inputSchema.properties.filename"
},
"data": {
"param": "filename"
}
},
{
"ruleId": "MTC-SUP-011",
"title": "Package declares no source repository",
"category": "supply-chain",
"severity": "info",
"confidence": "strong",
"description": "\"sad-mcp\" declares no repository URL, so its published artifact cannot be compared against reviewable source.",
"remediation": "Prefer packages that link to public, reviewable source.",
"location": {
"kind": "package",
"name": "sad-mcp"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "search_materials",
"tags": [],
"reasons": {}
},
{
"tool": "get_material",
"tags": [],
"reasons": {}
},
{
"tool": "list_materials",
"tags": [],
"reasons": {}
},
{
"tool": "quiz",
"tags": [],
"reasons": {}
},
{
"tool": "list_exams",
"tags": [],
"reasons": {}
},
{
"tool": "practice_exam",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "interview_stakeholder",
"tags": [],
"reasons": {}
},
{
"tool": "bpmn_analysis",
"tags": [],
"reasons": {}
},
{
"tool": "bpmn_validate_model",
"tags": [],
"reasons": {}
},
{
"tool": "bpmn_render",
"tags": [],
"reasons": {}
},
{
"tool": "uml_use_case",
"tags": [],
"reasons": {}
},
{
"tool": "uml_class_diagram",
"tags": [],
"reasons": {}
},
{
"tool": "uml_state_diagram",
"tags": [],
"reasons": {}
},
{
"tool": "uml_write_file",
"tags": [
"file-write"
],
"reasons": {
"file-write": [
"keyword \"write_file\" in tool name"
]
}
},
{
"tool": "version",
"tags": [],
"reasons": {}
},
{
"tool": "uml_usecase_validate_model",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "b0cfd791586876d4a0d21b377a817fb09707d93dab493a59329608552b9577ef",
"stats": {
"tools": 16,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 1,
"low": 3,
"info": 1
}
}
}