Android Emulator — 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": "mcp-android-emulator",
"source": {
"kind": "package",
"origin": "mcp-android-emulator"
},
"server": {
"name": "mcp-android-emulator"
}
},
"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": [
"sensitive-source",
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (42 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 (dist/adb/runner.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/adb/runner.js:21`): 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": "dist/adb/runner.js"
},
"evidence": "{ execFile } from \"node:child_process\"; import { promisify } from \"node:util\"; const execFileAsync = promisify(execFile)",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/adb/runner.js",
"line": 21,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (src/adb/runner.ts)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`src/adb/runner.ts:22`): 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/runner.ts"
},
"evidence": "{ execFile } from \"node:child_process\"; import { promisify } from \"node:util\"; const execFileAsync = promisify(execF",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "src/adb/runner.ts",
"line": 22,
"nonRuntime": false
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "get_ui_tree",
"tags": [],
"reasons": {}
},
{
"tool": "tap",
"tags": [],
"reasons": {}
},
{
"tool": "tap_text",
"tags": [],
"reasons": {}
},
{
"tool": "type_text",
"tags": [],
"reasons": {}
},
{
"tool": "swipe",
"tags": [],
"reasons": {}
},
{
"tool": "scroll",
"tags": [],
"reasons": {}
},
{
"tool": "press_key",
"tags": [],
"reasons": {}
},
{
"tool": "launch_app",
"tags": [],
"reasons": {}
},
{
"tool": "install_apk",
"tags": [],
"reasons": {}
},
{
"tool": "list_packages",
"tags": [],
"reasons": {}
},
{
"tool": "get_logs",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"get_logs\""
]
}
},
{
"tool": "device_info",
"tags": [],
"reasons": {}
},
{
"tool": "clear_app_data",
"tags": [],
"reasons": {}
},
{
"tool": "force_stop",
"tags": [],
"reasons": {}
},
{
"tool": "get_current_activity",
"tags": [],
"reasons": {}
},
{
"tool": "wait_for_element",
"tags": [],
"reasons": {}
},
{
"tool": "long_press",
"tags": [],
"reasons": {}
},
{
"tool": "clear_input",
"tags": [],
"reasons": {}
},
{
"tool": "select_all",
"tags": [],
"reasons": {}
},
{
"tool": "set_text",
"tags": [],
"reasons": {}
},
{
"tool": "drag",
"tags": [],
"reasons": {}
},
{
"tool": "double_tap",
"tags": [],
"reasons": {}
},
{
"tool": "get_screen_size",
"tags": [],
"reasons": {}
},
{
"tool": "is_element_visible",
"tags": [],
"reasons": {}
},
{
"tool": "get_element_bounds",
"tags": [],
"reasons": {}
},
{
"tool": "scroll_to_text",
"tags": [],
"reasons": {}
},
{
"tool": "wait_for_ui_stable",
"tags": [],
"reasons": {}
},
{
"tool": "wait_for_element_gone",
"tags": [],
"reasons": {}
},
{
"tool": "multi_tap",
"tags": [],
"reasons": {}
},
{
"tool": "pinch_zoom",
"tags": [],
"reasons": {}
},
{
"tool": "set_clipboard",
"tags": [],
"reasons": {}
},
{
"tool": "get_clipboard",
"tags": [],
"reasons": {}
},
{
"tool": "rotate_device",
"tags": [],
"reasons": {}
},
{
"tool": "tap_safe",
"tags": [],
"reasons": {}
},
{
"tool": "tap_element",
"tags": [],
"reasons": {}
},
{
"tool": "get_focused_element",
"tags": [],
"reasons": {}
},
{
"tool": "assert_screen_contains",
"tags": [],
"reasons": {}
},
{
"tool": "get_all_text",
"tags": [],
"reasons": {}
},
{
"tool": "get_clickable_elements",
"tags": [],
"reasons": {}
},
{
"tool": "is_keyboard_visible",
"tags": [],
"reasons": {}
},
{
"tool": "get_focused_input_value",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "208454855b51f084dbed7b9ecb253b40b95022f99dd5e300feb8caaea7c5da81",
"stats": {
"tools": 42,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 2,
"medium": 0,
"low": 0,
"info": 0
}
}
}