Ble — the complete, unedited output of the deterministic mcptrustchecker engine v1.9.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.9.0",
"methodologyVersion": "mcptrustchecker-1.9"
},
"target": {
"id": "ble-mcp-server",
"source": {
"kind": "package",
"origin": "ble-mcp-server"
},
"server": {
"name": "ble-mcp-server"
}
},
"grade": "A",
"score": {
"score": 99,
"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": "minimal",
"label": "capability blast radius (minimal) — client exposure if the model is manipulated",
"appliedPenalty": 0
},
{
"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-1.9"
},
"capability": {
"level": "minimal",
"reasons": [],
"tags": []
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (35 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 (tools/mcp_cli.py)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tools/mcp_cli.py:38`): 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": "tools/mcp_cli.py"
},
"evidence": "tor self.proc = subprocess.Popen( [sys.executable, \"-m\", \"ble_mcp_server\"], stdin=subpro",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "tools/mcp_cli.py",
"line": 38,
"nonRuntime": true
}
},
{
"ruleId": "MTC-SUP-012",
"title": "Package has no license",
"category": "hygiene",
"severity": "info",
"confidence": "strong",
"description": "\"ble-mcp-server\" has no declared license. This is a legal/reuse concern, not a security finding.",
"location": {
"kind": "package",
"name": "ble-mcp-server"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "ble.scan_start",
"tags": [],
"reasons": {}
},
{
"tool": "ble.scan_get_results",
"tags": [],
"reasons": {}
},
{
"tool": "ble.scan_stop",
"tags": [],
"reasons": {}
},
{
"tool": "ble.connect",
"tags": [],
"reasons": {}
},
{
"tool": "ble.disconnect",
"tags": [],
"reasons": {}
},
{
"tool": "ble.connection_status",
"tags": [],
"reasons": {}
},
{
"tool": "ble.discover",
"tags": [],
"reasons": {}
},
{
"tool": "ble.mtu",
"tags": [],
"reasons": {}
},
{
"tool": "ble.read",
"tags": [],
"reasons": {}
},
{
"tool": "ble.write",
"tags": [],
"reasons": {}
},
{
"tool": "ble.read_descriptor",
"tags": [],
"reasons": {}
},
{
"tool": "ble.write_descriptor",
"tags": [],
"reasons": {}
},
{
"tool": "ble.subscribe",
"tags": [],
"reasons": {}
},
{
"tool": "ble.unsubscribe",
"tags": [],
"reasons": {}
},
{
"tool": "ble.wait_notification",
"tags": [],
"reasons": {}
},
{
"tool": "ble.poll_notifications",
"tags": [],
"reasons": {}
},
{
"tool": "ble.drain_notifications",
"tags": [],
"reasons": {}
},
{
"tool": "ble.connections.list",
"tags": [],
"reasons": {}
},
{
"tool": "ble.subscriptions.list",
"tags": [],
"reasons": {}
},
{
"tool": "ble.scans.list",
"tags": [],
"reasons": {}
},
{
"tool": "ble.tasks.list",
"tags": [],
"reasons": {}
},
{
"tool": "ble.tasks.cancel",
"tags": [],
"reasons": {}
},
{
"tool": "ble.plugin.list",
"tags": [],
"reasons": {}
},
{
"tool": "ble.plugin.reload",
"tags": [],
"reasons": {}
},
{
"tool": "ble.plugin.template",
"tags": [],
"reasons": {}
},
{
"tool": "ble.plugin.load",
"tags": [],
"reasons": {}
},
{
"tool": "ble.spec.template",
"tags": [],
"reasons": {}
},
{
"tool": "ble.spec.register",
"tags": [],
"reasons": {}
},
{
"tool": "ble.spec.list",
"tags": [],
"reasons": {}
},
{
"tool": "ble.spec.attach",
"tags": [],
"reasons": {}
},
{
"tool": "ble.spec.get",
"tags": [],
"reasons": {}
},
{
"tool": "ble.spec.read",
"tags": [],
"reasons": {}
},
{
"tool": "ble.spec.search",
"tags": [],
"reasons": {}
},
{
"tool": "ble.trace.status",
"tags": [],
"reasons": {}
},
{
"tool": "ble.trace.tail",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "d8199e5162fa576560dd4e351c64d38694b3c8fd2698810a03cd3f1155b2674f",
"stats": {
"tools": 35,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 1,
"info": 1
}
}
}