Arelle — 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": "arelle-mcp",
"source": {
"kind": "package",
"origin": "arelle-mcp"
},
"server": {
"name": "arelle-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-1.13"
},
"capability": {
"level": "moderate",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)"
],
"tags": [
"untrusted-input"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (46 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 packaging/dev tooling (tests/test_stdout_is_clean.py)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tests/test_stdout_is_clean.py:59`): 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": "tests/test_stdout_is_clean.py"
},
"evidence": "cess[bytes]: return subprocess.run( [sys.executable, \"-c\", LOAD_SCRIPT, str(path)], capture_output=T",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "tests/test_stdout_is_clean.py",
"line": 59,
"nonRuntime": true
}
},
{
"ruleId": "MTC-SUP-012",
"title": "Package has no license",
"category": "hygiene",
"severity": "info",
"confidence": "strong",
"description": "\"arelle-mcp\" has no declared license. This is a legal/reuse concern, not a security finding.",
"location": {
"kind": "package",
"name": "arelle-mcp"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "xbrl_financial_ratios",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_trend_analysis",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_segment_breakdown",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_anomaly_detection",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_smart_summary",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_peer_comparison",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_extract_text",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_search_text",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_get_footnotes",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_list_sections",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_get_cover_page",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_get_html_tables",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_get_exhibits",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_get_raw_xml",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_fetch_sec_filing",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "xbrl_search_sec_concept",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_company_facts",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_edgar_search",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_edgar_company_info",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_edgar_filing_index",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_edgar_bulk_facts",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "xbrl_edgar_insider_trades",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_export_json",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_export_csv",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_export_concepts",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_export_dts",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_create_instance",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_extract_facts",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_fact_details",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_load_filing",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_filing_summary",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_compare_filings",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_close_filing",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_list_filings",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_run_formula",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_list_formulas",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_dts_comparison",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_check_calculations",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_validate_extended",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_presentation_tree",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_calculation_tree",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_dimension_structure",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_render_statement",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_browse_taxonomy",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"browse\""
]
}
},
{
"tool": "xbrl_concept_details",
"tags": [],
"reasons": {}
},
{
"tool": "xbrl_validate",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "e7244c0ec302792760582ff0fec2d3f0551f656dd6206b39397ca450ad4c8557",
"stats": {
"tools": 46,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 1,
"info": 1
}
}
}