R Adb — 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": "r-adb-mcp-server",
"source": {
"kind": "package",
"origin": "r-adb-mcp-server"
},
"server": {
"name": "r-adb-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": [
"can send data / act on an external service",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"can execute shell commands or code"
],
"tags": [
"sensitive-source",
"code-exec",
"external-sink"
]
},
"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 ([get_ui_hierarchy, list_files, read_file]) and tools that can send data out ([shell_command, send_sms]) 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": "get_ui_hierarchy → shell_command"
},
"evidence": "sources [get_ui_hierarchy, list_files, read_file] → sinks [shell_command, send_sms]",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"sources": [
"get_ui_hierarchy",
"list_files",
"read_file"
],
"sinks": [
"shell_command",
"send_sms"
]
}
},
{
"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-SRC-002",
"title": "Shell/command execution in server code (src/adb_mcp_server/server.py)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`src/adb_mcp_server/server.py:32`): 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": "src/adb_mcp_server/server.py"
},
"evidence": "try: result = subprocess.run(cmd, capture_output=True, text=True, timeout=timeout) if result.returncod",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "src/adb_mcp_server/server.py",
"line": 32,
"nonRuntime": false
}
},
{
"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"
]
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "high",
"confidence": "strong",
"untrustedInput": [],
"sensitiveSource": [
"get_ui_hierarchy",
"list_files",
"read_file"
],
"externalSink": [
"shell_command",
"send_sms"
],
"selfContained": false,
"path": [
"get_ui_hierarchy",
"send_sms"
],
"pathWired": false,
"description": "A sensitive-source → external-sink chain exists: get_ui_hierarchy → send_sms."
}
],
"capabilities": [
{
"tool": "list_devices",
"tags": [],
"reasons": {}
},
{
"tool": "get_device_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_screen_specs",
"tags": [],
"reasons": {}
},
{
"tool": "screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "screenshot_to_file",
"tags": [],
"reasons": {}
},
{
"tool": "start_screen_record",
"tags": [],
"reasons": {}
},
{
"tool": "stop_screen_record",
"tags": [],
"reasons": {}
},
{
"tool": "pull_recordings",
"tags": [],
"reasons": {}
},
{
"tool": "get_ui_hierarchy",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"dump\""
]
}
},
{
"tool": "get_clickable_elements",
"tags": [],
"reasons": {}
},
{
"tool": "find_element_by_text",
"tags": [],
"reasons": {}
},
{
"tool": "find_element_by_id",
"tags": [],
"reasons": {}
},
{
"tool": "tap",
"tags": [],
"reasons": {}
},
{
"tool": "tap_element",
"tags": [],
"reasons": {}
},
{
"tool": "long_press",
"tags": [],
"reasons": {}
},
{
"tool": "double_tap",
"tags": [],
"reasons": {}
},
{
"tool": "swipe",
"tags": [],
"reasons": {}
},
{
"tool": "scroll_down",
"tags": [],
"reasons": {}
},
{
"tool": "scroll_up",
"tags": [],
"reasons": {}
},
{
"tool": "scroll_to_text",
"tags": [],
"reasons": {}
},
{
"tool": "input_text",
"tags": [],
"reasons": {}
},
{
"tool": "clear_text_field",
"tags": [],
"reasons": {}
},
{
"tool": "press_key",
"tags": [],
"reasons": {}
},
{
"tool": "press_back",
"tags": [],
"reasons": {}
},
{
"tool": "press_home",
"tags": [],
"reasons": {}
},
{
"tool": "press_recent_apps",
"tags": [],
"reasons": {}
},
{
"tool": "get_current_activity",
"tags": [],
"reasons": {}
},
{
"tool": "launch_app",
"tags": [],
"reasons": {}
},
{
"tool": "launch_activity",
"tags": [],
"reasons": {}
},
{
"tool": "force_stop_app",
"tags": [],
"reasons": {}
},
{
"tool": "clear_app_data",
"tags": [],
"reasons": {}
},
{
"tool": "list_packages",
"tags": [],
"reasons": {}
},
{
"tool": "get_app_info",
"tags": [],
"reasons": {}
},
{
"tool": "install_apk",
"tags": [],
"reasons": {}
},
{
"tool": "uninstall_app",
"tags": [],
"reasons": {}
},
{
"tool": "get_logcat",
"tags": [],
"reasons": {}
},
{
"tool": "clear_logcat",
"tags": [],
"reasons": {}
},
{
"tool": "get_flutter_logs",
"tags": [],
"reasons": {}
},
{
"tool": "get_crash_logs",
"tags": [],
"reasons": {}
},
{
"tool": "get_anr_traces",
"tags": [],
"reasons": {}
},
{
"tool": "get_memory_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_cpu_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_battery_stats",
"tags": [],
"reasons": {}
},
{
"tool": "get_gpu_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_frame_stats",
"tags": [],
"reasons": {}
},
{
"tool": "get_network_info",
"tags": [],
"reasons": {}
},
{
"tool": "toggle_wifi",
"tags": [],
"reasons": {}
},
{
"tool": "toggle_airplane_mode",
"tags": [],
"reasons": {}
},
{
"tool": "set_proxy",
"tags": [],
"reasons": {}
},
{
"tool": "clear_proxy",
"tags": [],
"reasons": {}
},
{
"tool": "toggle_show_taps",
"tags": [],
"reasons": {}
},
{
"tool": "toggle_show_layout_bounds",
"tags": [],
"reasons": {}
},
{
"tool": "set_animation_scale",
"tags": [],
"reasons": {}
},
{
"tool": "rotate_screen",
"tags": [],
"reasons": {}
},
{
"tool": "change_screen_size",
"tags": [],
"reasons": {}
},
{
"tool": "reset_screen_size",
"tags": [],
"reasons": {}
},
{
"tool": "change_density",
"tags": [],
"reasons": {}
},
{
"tool": "reset_density",
"tags": [],
"reasons": {}
},
{
"tool": "push_file",
"tags": [],
"reasons": {}
},
{
"tool": "pull_file",
"tags": [],
"reasons": {}
},
{
"tool": "list_files",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"list_files\""
]
}
},
{
"tool": "read_file",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"read_file\""
]
}
},
{
"tool": "shell_command",
"tags": [
"code-exec"
],
"reasons": {
"code-exec": [
"keyword \"shell\" in tool name"
]
}
},
{
"tool": "reboot_device",
"tags": [],
"reasons": {}
},
{
"tool": "get_flutter_performance_overlay",
"tags": [],
"reasons": {}
},
{
"tool": "check_flutter_app_running",
"tags": [],
"reasons": {}
},
{
"tool": "get_accessibility_info",
"tags": [],
"reasons": {}
},
{
"tool": "set_font_scale",
"tags": [],
"reasons": {}
},
{
"tool": "toggle_talkback",
"tags": [],
"reasons": {}
},
{
"tool": "toggle_high_contrast",
"tags": [],
"reasons": {}
},
{
"tool": "toggle_color_inversion",
"tags": [],
"reasons": {}
},
{
"tool": "set_location",
"tags": [],
"reasons": {}
},
{
"tool": "send_sms",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"sms\""
]
}
},
{
"tool": "simulate_call",
"tags": [],
"reasons": {}
},
{
"tool": "capture_screen_for_comparison",
"tags": [],
"reasons": {}
},
{
"tool": "get_all_text_on_screen",
"tags": [],
"reasons": {}
},
{
"tool": "get_element_colors_at_position",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "f3972403570486c8552115d75b78cdb7b152ab9fb93e227dc4f9a6099787b5fe",
"stats": {
"tools": 77,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 3,
"medium": 0,
"low": 1,
"info": 0
}
}
}