Webrtc Mcp Chat — 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": "webrtc-mcp-chat",
"source": {
"kind": "package",
"origin": "webrtc-mcp-chat"
},
"server": {
"name": "webrtc-mcp-chat"
}
},
"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 execute shell commands or code"
],
"tags": [
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (19 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 (start.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`start.js:3`): 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": "start.js"
},
"evidence": "import { spawn } from 'child_process'; import { fileURLToPath } from 'url'; import { dirname, join } from 'path'; cons",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "start.js",
"line": 3,
"nonRuntime": false
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "create_temp_chat",
"tags": [],
"reasons": {}
},
{
"tool": "join_temp_chat",
"tags": [],
"reasons": {}
},
{
"tool": "send_temp_message",
"tags": [],
"reasons": {}
},
{
"tool": "get_temp_room_info",
"tags": [],
"reasons": {}
},
{
"tool": "join_public_chat",
"tags": [],
"reasons": {}
},
{
"tool": "send_public_message",
"tags": [],
"reasons": {}
},
{
"tool": "check_server_status",
"tags": [],
"reasons": {}
},
{
"tool": "Chat Server Information",
"tags": [],
"reasons": {}
},
{
"tool": "Temporary Rooms Guide",
"tags": [],
"reasons": {}
},
{
"tool": "Deployment Guide",
"tags": [],
"reasons": {}
},
{
"tool": "temp_room_invite",
"tags": [],
"reasons": {}
},
{
"tool": "roomId",
"tags": [],
"reasons": {}
},
{
"tool": "roomToken",
"tags": [],
"reasons": {}
},
{
"tool": "expiresInMinutes",
"tags": [],
"reasons": {}
},
{
"tool": "purpose",
"tags": [],
"reasons": {}
},
{
"tool": "agent_coordination",
"tags": [],
"reasons": {}
},
{
"tool": "agentId",
"tags": [],
"reasons": {}
},
{
"tool": "task",
"tags": [],
"reasons": {}
},
{
"tool": "roomInfo",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "c40d11a0f0e76db9dffd68082d9630a3d3570356336b3917686f8faeed278671",
"stats": {
"tools": 19,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 0,
"low": 0,
"info": 0
}
}
}