Files Com — 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": "files-com-mcp",
"source": {
"kind": "package",
"origin": "files-com-mcp"
},
"server": {
"name": "files-com-mcp"
}
},
"grade": "A",
"score": {
"score": 95,
"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": "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 send data / act on an external service",
"can create, modify or delete files"
],
"tags": [
"untrusted-input",
"external-sink",
"file-write"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (68 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 ([Download_File_to_Local, List_Bundle_Download]) co-exist with external-action tools ([Upload_File_from_Local]). 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": "Download_File_to_Local → Upload_File_from_Local"
},
"evidence": "untrusted [Download_File_to_Local, List_Bundle_Download] → sinks [Upload_File_from_Local]",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"Download_File_to_Local",
"List_Bundle_Download"
],
"sinks": [
"Upload_File_from_Local"
]
}
},
{
"ruleId": "MTC-CAP-002",
"title": "Tool \"Delete_File\" can modify the filesystem",
"category": "permissions",
"severity": "medium",
"confidence": "strong",
"description": "Tool \"Delete_File\" can write, overwrite or delete files (keyword \"delete_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": "Delete_File"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-002",
"title": "Tool \"Move_File\" can modify the filesystem",
"category": "permissions",
"severity": "medium",
"confidence": "strong",
"description": "Tool \"Move_File\" can write, overwrite or delete files (keyword \"move_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": "Move_File"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"Delete_File\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"Delete_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": "Delete_File"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"Move_File\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"Move_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": "Move_File"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-SUP-011",
"title": "Package declares no source repository",
"category": "supply-chain",
"severity": "info",
"confidence": "strong",
"description": "\"files-com-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": "files-com-mcp"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"Download_File_to_Local",
"List_Bundle_Download"
],
"sensitiveSource": [],
"externalSink": [
"Upload_File_from_Local"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "Check_Platform_Status",
"tags": [],
"reasons": {}
},
{
"tool": "Hello_World",
"tags": [],
"reasons": {}
},
{
"tool": "Download_File_to_Local",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "Upload_File_from_Local",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"upload_file\""
]
}
},
{
"tool": "List_Action_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Api_Request_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Automation",
"tags": [],
"reasons": {}
},
{
"tool": "Find_Automation",
"tags": [],
"reasons": {}
},
{
"tool": "List_Automation_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Bundle",
"tags": [],
"reasons": {}
},
{
"tool": "Find_Bundle",
"tags": [],
"reasons": {}
},
{
"tool": "Create_Bundle",
"tags": [],
"reasons": {}
},
{
"tool": "Update_Bundle",
"tags": [],
"reasons": {}
},
{
"tool": "Delete_Bundle",
"tags": [],
"reasons": {}
},
{
"tool": "List_Bundle_Download",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "List_Bundle_Notification",
"tags": [],
"reasons": {}
},
{
"tool": "Find_Bundle_Notification",
"tags": [],
"reasons": {}
},
{
"tool": "Create_Bundle_Notification",
"tags": [],
"reasons": {}
},
{
"tool": "Update_Bundle_Notification",
"tags": [],
"reasons": {}
},
{
"tool": "Delete_Bundle_Notification",
"tags": [],
"reasons": {}
},
{
"tool": "List_Bundle_Recipient",
"tags": [],
"reasons": {}
},
{
"tool": "Create_Bundle_Recipient",
"tags": [],
"reasons": {}
},
{
"tool": "List_Bundle_Registration",
"tags": [],
"reasons": {}
},
{
"tool": "List_Email_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Exavault_Api_Request_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_External_Event",
"tags": [],
"reasons": {}
},
{
"tool": "Delete_File",
"tags": [
"file-write"
],
"reasons": {
"file-write": [
"keyword \"delete_file\" in tool name"
]
}
},
{
"tool": "Find_File",
"tags": [],
"reasons": {}
},
{
"tool": "Zip_List_Contents_File",
"tags": [],
"reasons": {}
},
{
"tool": "Copy_File",
"tags": [],
"reasons": {}
},
{
"tool": "Move_File",
"tags": [
"file-write"
],
"reasons": {
"file-write": [
"keyword \"move_file\" in tool name"
]
}
},
{
"tool": "Transform_File",
"tags": [],
"reasons": {}
},
{
"tool": "Gpg_Decrypt_File",
"tags": [],
"reasons": {}
},
{
"tool": "Gpg_Encrypt_File",
"tags": [],
"reasons": {}
},
{
"tool": "Unzip_File",
"tags": [],
"reasons": {}
},
{
"tool": "Zip_File",
"tags": [],
"reasons": {}
},
{
"tool": "List_File_Migration_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_For_Folder",
"tags": [],
"reasons": {}
},
{
"tool": "Create_Folder",
"tags": [],
"reasons": {}
},
{
"tool": "List_Ftp_Action_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Group",
"tags": [],
"reasons": {}
},
{
"tool": "Find_Group",
"tags": [],
"reasons": {}
},
{
"tool": "Create_Group",
"tags": [],
"reasons": {}
},
{
"tool": "Update_Group",
"tags": [],
"reasons": {}
},
{
"tool": "Delete_Group",
"tags": [],
"reasons": {}
},
{
"tool": "List_For_File_History",
"tags": [],
"reasons": {}
},
{
"tool": "List_For_Folder_History",
"tags": [],
"reasons": {}
},
{
"tool": "List_For_User_History",
"tags": [],
"reasons": {}
},
{
"tool": "List_Logins_History",
"tags": [],
"reasons": {}
},
{
"tool": "List_History",
"tags": [],
"reasons": {}
},
{
"tool": "List_Inbound_S3_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Outbound_Connection_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Permission",
"tags": [],
"reasons": {}
},
{
"tool": "Create_Permission",
"tags": [],
"reasons": {}
},
{
"tool": "Delete_Permission",
"tags": [],
"reasons": {}
},
{
"tool": "List_Public_Hosting_Request_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Remote_Server",
"tags": [],
"reasons": {}
},
{
"tool": "Find_Remote_Server",
"tags": [],
"reasons": {}
},
{
"tool": "List_Scim_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Settings_Change",
"tags": [],
"reasons": {}
},
{
"tool": "List_Sftp_Action_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_Sync_Log",
"tags": [],
"reasons": {}
},
{
"tool": "List_User",
"tags": [],
"reasons": {}
},
{
"tool": "Find_User",
"tags": [],
"reasons": {}
},
{
"tool": "Create_User",
"tags": [],
"reasons": {}
},
{
"tool": "Update_User",
"tags": [],
"reasons": {}
},
{
"tool": "Delete_User",
"tags": [],
"reasons": {}
},
{
"tool": "List_Web_Dav_Action_Log",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "d759366ff7c42cb940affcaa113b6b8b775e68b33dc727b26a8631acc92d1098",
"stats": {
"tools": 68,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 3,
"low": 2,
"info": 1
}
}
}