Uiautomator2 — 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": "uiautomator2-mcp-server",
"source": {
"kind": "package",
"origin": "uiautomator2-mcp-server"
},
"server": {
"name": "uiautomator2-mcp-server"
}
},
"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": [
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"can execute shell commands or code"
],
"tags": [
"code-exec",
"sensitive-source"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (77 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-004",
"title": "Sensitive-source and external-sink co-exist",
"category": "exfiltration",
"severity": "high",
"confidence": "strong",
"description": "Tools that read sensitive data ([dump_hierarchy, save_dump_hierarchy]) and tools that can send data out ([shell_command]) are exposed together. An agent can move private data to the sink.",
"remediation": "Keep secret-reading and egress capabilities on separate, separately-approved servers.",
"location": {
"kind": "flow",
"name": "dump_hierarchy → shell_command"
},
"evidence": "sources [dump_hierarchy, save_dump_hierarchy] → sinks [shell_command]",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"sources": [
"dump_hierarchy",
"save_dump_hierarchy"
],
"sinks": [
"shell_command"
]
}
},
{
"ruleId": "MTC-CAP-001",
"title": "Tool \"shell_command\" exposes command/code execution",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "Tool \"shell_command\" appears to run shell commands or evaluate code (keyword \"shell\" in tool name). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.",
"remediation": "Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.",
"location": {
"kind": "tool",
"name": "shell_command"
},
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"shell_command\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"shell_command\" 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": "shell_command"
},
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-SUP-012",
"title": "Package has no license",
"category": "hygiene",
"severity": "info",
"confidence": "strong",
"description": "\"uiautomator2-mcp-server\" has no declared license. This is a legal/reuse concern, not a security finding.",
"location": {
"kind": "package",
"name": "uiautomator2-mcp-server"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "high",
"confidence": "strong",
"untrustedInput": [],
"sensitiveSource": [
"dump_hierarchy",
"save_dump_hierarchy"
],
"externalSink": [
"shell_command"
],
"selfContained": false,
"path": [
"dump_hierarchy",
"shell_command"
],
"pathWired": false,
"description": "A sensitive-source → external-sink chain exists: dump_hierarchy → shell_command."
}
],
"capabilities": [
{
"tool": "click",
"tags": [],
"reasons": {}
},
{
"tool": "long_click",
"tags": [],
"reasons": {}
},
{
"tool": "double_click",
"tags": [],
"reasons": {}
},
{
"tool": "swipe",
"tags": [],
"reasons": {}
},
{
"tool": "swipe_points",
"tags": [],
"reasons": {}
},
{
"tool": "drag",
"tags": [],
"reasons": {}
},
{
"tool": "press_key",
"tags": [],
"reasons": {}
},
{
"tool": "screen_on",
"tags": [],
"reasons": {}
},
{
"tool": "screen_off",
"tags": [],
"reasons": {}
},
{
"tool": "app_install",
"tags": [],
"reasons": {}
},
{
"tool": "app_uninstall",
"tags": [],
"reasons": {}
},
{
"tool": "app_uninstall_all",
"tags": [],
"reasons": {}
},
{
"tool": "app_start",
"tags": [],
"reasons": {}
},
{
"tool": "app_wait",
"tags": [],
"reasons": {}
},
{
"tool": "app_stop",
"tags": [],
"reasons": {}
},
{
"tool": "app_stop_all",
"tags": [],
"reasons": {}
},
{
"tool": "app_clear",
"tags": [],
"reasons": {}
},
{
"tool": "app_info",
"tags": [],
"reasons": {}
},
{
"tool": "app_current",
"tags": [],
"reasons": {}
},
{
"tool": "app_list",
"tags": [],
"reasons": {}
},
{
"tool": "app_list_running",
"tags": [],
"reasons": {}
},
{
"tool": "app_auto_grant_permissions",
"tags": [],
"reasons": {}
},
{
"tool": "read_clipboard",
"tags": [],
"reasons": {}
},
{
"tool": "write_clipboard",
"tags": [],
"reasons": {}
},
{
"tool": "delay",
"tags": [],
"reasons": {}
},
{
"tool": "init",
"tags": [],
"reasons": {}
},
{
"tool": "purge",
"tags": [],
"reasons": {}
},
{
"tool": "shell_command",
"tags": [
"code-exec"
],
"reasons": {
"code-exec": [
"keyword \"shell\" in tool name"
]
}
},
{
"tool": "device_list",
"tags": [],
"reasons": {}
},
{
"tool": "connect",
"tags": [],
"reasons": {}
},
{
"tool": "disconnect",
"tags": [],
"reasons": {}
},
{
"tool": "disconnect_all",
"tags": [],
"reasons": {}
},
{
"tool": "window_size",
"tags": [],
"reasons": {}
},
{
"tool": "screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "save_screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "dump_hierarchy",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"dump\""
]
}
},
{
"tool": "save_dump_hierarchy",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"dump\""
]
}
},
{
"tool": "info",
"tags": [],
"reasons": {}
},
{
"tool": "activity_wait_appear",
"tags": [],
"reasons": {}
},
{
"tool": "swipe_ext",
"tags": [],
"reasons": {}
},
{
"tool": "swipe_left",
"tags": [],
"reasons": {}
},
{
"tool": "swipe_right",
"tags": [],
"reasons": {}
},
{
"tool": "swipe_up",
"tags": [],
"reasons": {}
},
{
"tool": "swipe_down",
"tags": [],
"reasons": {}
},
{
"tool": "send_text",
"tags": [],
"reasons": {}
},
{
"tool": "set_focused_text",
"tags": [],
"reasons": {}
},
{
"tool": "clear_text",
"tags": [],
"reasons": {}
},
{
"tool": "hide_keyboard",
"tags": [],
"reasons": {}
},
{
"tool": "start_scrcpy",
"tags": [],
"reasons": {}
},
{
"tool": "stop_scrcpy",
"tags": [],
"reasons": {}
},
{
"tool": "screen_record_start",
"tags": [],
"reasons": {}
},
{
"tool": "screen_record_stop",
"tags": [],
"reasons": {}
},
{
"tool": "screen_record",
"tags": [],
"reasons": {}
},
{
"tool": "set_orientation",
"tags": [],
"reasons": {}
},
{
"tool": "get_orientation",
"tags": [],
"reasons": {}
},
{
"tool": "open_notification",
"tags": [],
"reasons": {}
},
{
"tool": "open_quick_settings",
"tags": [],
"reasons": {}
},
{
"tool": "unlock",
"tags": [],
"reasons": {}
},
{
"tool": "get_toast",
"tags": [],
"reasons": {}
},
{
"tool": "show_toast",
"tags": [],
"reasons": {}
},
{
"tool": "reset_toast",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_wait_appear",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_wait_gone",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_click",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_click_nowait",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_long_press",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_save_screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_get_text",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_set_text",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_get_bounds",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_exists",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_get_info",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_get_attrib",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_swipe",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_scroll",
"tags": [],
"reasons": {}
},
{
"tool": "xpath_scroll_to",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "14f23e99eefa926ef9d33292f76362294fcb4ece07a257162cd74ad0e6e80719",
"stats": {
"tools": 77,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 2,
"medium": 0,
"low": 1,
"info": 1
}
}
}