Classin — 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": "classin-mcp-server",
"source": {
"kind": "package",
"origin": "classin-mcp-server"
},
"server": {
"name": "classin-mcp-server"
}
},
"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-1.13"
},
"capability": {
"level": "moderate",
"reasons": [
"can create, modify or delete files"
],
"tags": [
"file-write"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (48 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 \"classin_delete_file\" can modify the filesystem",
"category": "permissions",
"severity": "medium",
"confidence": "strong",
"description": "Tool \"classin_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": "classin_delete_file"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"classin_delete_file\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"classin_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": "classin_delete_file"
},
"data": {
"tags": [
"file-write"
]
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "classin_set_class_video",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_class_video",
"tags": [],
"reasons": {}
},
{
"tool": "classin_update_video_lock_status",
"tags": [],
"reasons": {}
},
{
"tool": "classin_get_webcast_url",
"tags": [],
"reasons": {}
},
{
"tool": "classin_add_course",
"tags": [],
"reasons": {}
},
{
"tool": "classin_edit_course",
"tags": [],
"reasons": {}
},
{
"tool": "classin_end_course",
"tags": [],
"reasons": {}
},
{
"tool": "classin_add_course_class",
"tags": [],
"reasons": {}
},
{
"tool": "classin_edit_course_class",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_course_class",
"tags": [],
"reasons": {}
},
{
"tool": "classin_add_course_student",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_course_student",
"tags": [],
"reasons": {}
},
{
"tool": "classin_add_course_teacher",
"tags": [],
"reasons": {}
},
{
"tool": "classin_remove_course_teacher",
"tags": [],
"reasons": {}
},
{
"tool": "classin_add_class_students",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_class_students",
"tags": [],
"reasons": {}
},
{
"tool": "classin_get_folder_list",
"tags": [],
"reasons": {}
},
{
"tool": "classin_get_cloud_list",
"tags": [],
"reasons": {}
},
{
"tool": "classin_get_top_folder_id",
"tags": [],
"reasons": {}
},
{
"tool": "classin_create_folder",
"tags": [],
"reasons": {}
},
{
"tool": "classin_rename_folder",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_folder",
"tags": [],
"reasons": {}
},
{
"tool": "classin_rename_file",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_file",
"tags": [
"file-write"
],
"reasons": {
"file-write": [
"keyword \"delete_file\" in tool name"
]
}
},
{
"tool": "classin_modify_group_nickname",
"tags": [],
"reasons": {}
},
{
"tool": "classin_create_unit",
"tags": [],
"reasons": {}
},
{
"tool": "classin_update_unit",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_unit",
"tags": [],
"reasons": {}
},
{
"tool": "classin_create_activity_noclass",
"tags": [],
"reasons": {}
},
{
"tool": "classin_create_classroom_activity",
"tags": [],
"reasons": {}
},
{
"tool": "classin_update_classroom_activity",
"tags": [],
"reasons": {}
},
{
"tool": "classin_release_activity",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_activity",
"tags": [],
"reasons": {}
},
{
"tool": "classin_move_activity",
"tags": [],
"reasons": {}
},
{
"tool": "classin_add_activity_student",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_activity_student",
"tags": [],
"reasons": {}
},
{
"tool": "classin_add_school_label",
"tags": [],
"reasons": {}
},
{
"tool": "classin_update_school_label",
"tags": [],
"reasons": {}
},
{
"tool": "classin_delete_school_label",
"tags": [],
"reasons": {}
},
{
"tool": "classin_edit_school_settings",
"tags": [],
"reasons": {}
},
{
"tool": "classin_register_user",
"tags": [],
"reasons": {}
},
{
"tool": "classin_modify_password",
"tags": [],
"reasons": {}
},
{
"tool": "classin_add_teacher",
"tags": [],
"reasons": {}
},
{
"tool": "classin_edit_teacher",
"tags": [],
"reasons": {}
},
{
"tool": "classin_stop_using_teacher",
"tags": [],
"reasons": {}
},
{
"tool": "classin_restart_using_teacher",
"tags": [],
"reasons": {}
},
{
"tool": "classin_add_school_student",
"tags": [],
"reasons": {}
},
{
"tool": "classin_edit_school_student",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "abaebc8f72de6bdd63a14fb5462def12926d600bec49e66ff67d1dec66b65951",
"stats": {
"tools": 48,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 1,
"low": 1,
"info": 0
}
}
}