Loenn — 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": "loenn-mcp",
"source": {
"kind": "package",
"origin": "loenn-mcp"
},
"server": {
"name": "loenn-mcp"
}
},
"grade": "A",
"score": {
"score": 93,
"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": "high",
"label": "capability blast radius (high) — client exposure if the model is manipulated",
"appliedPenalty": 6
},
{
"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": "high",
"reasons": [
"can execute shell commands or code"
],
"tags": [
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (82 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-SRC-002",
"title": "Shell/command execution in server code (loenn_mcp/image_map.py)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`loenn_mcp/image_map.py:42`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.",
"remediation": "Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.",
"location": {
"kind": "server",
"name": "loenn_mcp/image_map.py"
},
"evidence": "# Green → player spawn (0, 0, 255): \"jumpthru\", # Blue → jump-through platform (255, 255, 0): \"straw",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "loenn_mcp/image_map.py",
"line": 42,
"nonRuntime": false
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "list_maps",
"tags": [],
"reasons": {}
},
{
"tool": "read_map_overview",
"tags": [],
"reasons": {}
},
{
"tool": "read_room",
"tags": [],
"reasons": {}
},
{
"tool": "get_room_tiles",
"tags": [],
"reasons": {}
},
{
"tool": "add_entity",
"tags": [],
"reasons": {}
},
{
"tool": "remove_entity",
"tags": [],
"reasons": {}
},
{
"tool": "add_trigger",
"tags": [],
"reasons": {}
},
{
"tool": "remove_trigger",
"tags": [],
"reasons": {}
},
{
"tool": "set_room_tiles",
"tags": [],
"reasons": {}
},
{
"tool": "add_room",
"tags": [],
"reasons": {}
},
{
"tool": "remove_room",
"tags": [],
"reasons": {}
},
{
"tool": "create_map",
"tags": [],
"reasons": {}
},
{
"tool": "list_stylegrounds",
"tags": [],
"reasons": {}
},
{
"tool": "add_styleground",
"tags": [],
"reasons": {}
},
{
"tool": "remove_styleground",
"tags": [],
"reasons": {}
},
{
"tool": "update_styleground",
"tags": [],
"reasons": {}
},
{
"tool": "list_entity_definitions",
"tags": [],
"reasons": {}
},
{
"tool": "get_entity_definition",
"tags": [],
"reasons": {}
},
{
"tool": "list_trigger_definitions",
"tags": [],
"reasons": {}
},
{
"tool": "list_effect_definitions",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_map",
"tags": [],
"reasons": {}
},
{
"tool": "visualize_map_layout",
"tags": [],
"reasons": {}
},
{
"tool": "preview_map_section",
"tags": [],
"reasons": {}
},
{
"tool": "render_map_html",
"tags": [],
"reasons": {}
},
{
"tool": "build_pattern_library",
"tags": [],
"reasons": {}
},
{
"tool": "generate_room_from_pattern",
"tags": [],
"reasons": {}
},
{
"tool": "validate_room",
"tags": [],
"reasons": {}
},
{
"tool": "ingest_external_map",
"tags": [],
"reasons": {}
},
{
"tool": "generate_map_from_image",
"tags": [],
"reasons": {}
},
{
"tool": "generate_terrain_map",
"tags": [],
"reasons": {}
},
{
"tool": "preview_terrain_biomes",
"tags": [],
"reasons": {}
},
{
"tool": "read_map_metadata",
"tags": [],
"reasons": {}
},
{
"tool": "search_entities",
"tags": [],
"reasons": {}
},
{
"tool": "search_triggers",
"tags": [],
"reasons": {}
},
{
"tool": "compare_rooms",
"tags": [],
"reasons": {}
},
{
"tool": "update_entity",
"tags": [],
"reasons": {}
},
{
"tool": "move_entity",
"tags": [],
"reasons": {}
},
{
"tool": "update_room",
"tags": [],
"reasons": {}
},
{
"tool": "clone_room",
"tags": [],
"reasons": {}
},
{
"tool": "batch_add_entities",
"tags": [],
"reasons": {}
},
{
"tool": "list_decals",
"tags": [],
"reasons": {}
},
{
"tool": "add_decal",
"tags": [],
"reasons": {}
},
{
"tool": "remove_decal",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_entity_usage",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_difficulty",
"tags": [],
"reasons": {}
},
{
"tool": "find_entity_references",
"tags": [],
"reasons": {}
},
{
"tool": "detect_map_patterns",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_room_connectivity",
"tags": [],
"reasons": {}
},
{
"tool": "suggest_improvements",
"tags": [],
"reasons": {}
},
{
"tool": "compare_maps",
"tags": [],
"reasons": {}
},
{
"tool": "wiki_save",
"tags": [],
"reasons": {}
},
{
"tool": "wiki_search",
"tags": [],
"reasons": {}
},
{
"tool": "wiki_list",
"tags": [],
"reasons": {}
},
{
"tool": "wiki_get",
"tags": [],
"reasons": {}
},
{
"tool": "get_mod_info",
"tags": [],
"reasons": {}
},
{
"tool": "validate_map",
"tags": [],
"reasons": {}
},
{
"tool": "get_trigger_definition",
"tags": [],
"reasons": {}
},
{
"tool": "get_effect_definition",
"tags": [],
"reasons": {}
},
{
"tool": "export_room_json",
"tags": [],
"reasons": {}
},
{
"tool": "import_room_json",
"tags": [],
"reasons": {}
},
{
"tool": "summarize_map_diff",
"tags": [],
"reasons": {}
},
{
"tool": "batch_validate_and_fix",
"tags": [],
"reasons": {}
},
{
"tool": "get_room_settings",
"tags": [],
"reasons": {}
},
{
"tool": "update_room_settings",
"tags": [],
"reasons": {}
},
{
"tool": "rename_room",
"tags": [],
"reasons": {}
},
{
"tool": "move_room",
"tags": [],
"reasons": {}
},
{
"tool": "resize_room",
"tags": [],
"reasons": {}
},
{
"tool": "get_map_metadata",
"tags": [],
"reasons": {}
},
{
"tool": "set_map_metadata",
"tags": [],
"reasons": {}
},
{
"tool": "get_map_dependencies",
"tags": [],
"reasons": {}
},
{
"tool": "set_map_dependencies",
"tags": [],
"reasons": {}
},
{
"tool": "install_loenn_manager",
"tags": [],
"reasons": {}
},
{
"tool": "get_loenn_manager_source",
"tags": [],
"reasons": {}
},
{
"tool": "analyze_map_assets",
"tags": [],
"reasons": {}
},
{
"tool": "ai_analyze_map",
"tags": [],
"reasons": {}
},
{
"tool": "ai_describe_room",
"tags": [],
"reasons": {}
},
{
"tool": "ai_suggest_entities",
"tags": [],
"reasons": {}
},
{
"tool": "pcg_mdmc_presets",
"tags": [],
"reasons": {}
},
{
"tool": "pcg_skeleton_generate",
"tags": [],
"reasons": {}
},
{
"tool": "pcg_markov_fill",
"tags": [],
"reasons": {}
},
{
"tool": "pcg_score_room",
"tags": [],
"reasons": {}
},
{
"tool": "pcg_pipeline",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "5a4b07aa861da80bb5373188b5ed001ec553e77d782b4951a7e126828a635de6",
"stats": {
"tools": 82,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 0,
"low": 0,
"info": 0
}
}
}