Appscreenshotstudio — the complete, unedited output of the deterministic mcptrustchecker engine v1.8.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.8.0",
"methodologyVersion": "mcptrustchecker-1.8"
},
"target": {
"id": "@appscreenshotstudio/mcp",
"source": {
"kind": "package",
"origin": "@appscreenshotstudio/mcp"
},
"server": {
"name": "@appscreenshotstudio/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-1.8"
},
"capability": {
"level": "moderate",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"reads sensitive or local data"
],
"tags": [
"untrusted-input",
"sensitive-source"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (9 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-008",
"title": "Unconstrained path parameter \"file_path\" on \"upload-screenshots\"",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"upload-screenshots\" takes a path parameter \"file_path\" 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": "upload-screenshots",
"field": "inputSchema.properties.file_path"
},
"data": {
"param": "file_path"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "generate-screenshots",
"tags": [],
"reasons": {}
},
{
"tool": "edit-screenshots",
"tags": [],
"reasons": {}
},
{
"tool": "render-screenshots",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "list-devices",
"tags": [],
"reasons": {}
},
{
"tool": "get-project",
"tags": [],
"reasons": {}
},
{
"tool": "generate-background",
"tags": [],
"reasons": {}
},
{
"tool": "generate-panoramic-background",
"tags": [],
"reasons": {}
},
{
"tool": "prepare-screenshot-brief",
"tags": [],
"reasons": {}
},
{
"tool": "upload-screenshots",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"parameter \"path\""
]
}
}
],
"surfaceDigest": "a449769312a2d552fa2089c44739fdc8a435026622db19e6644e55e2803d1eeb",
"stats": {
"tools": 9,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 1,
"info": 0
}
}
}