Drawlatch — 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": "@wolpertingerlabs/drawlatch",
"source": {
"kind": "package",
"origin": "@wolpertingerlabs/drawlatch"
},
"server": {
"name": "@wolpertingerlabs/drawlatch"
}
},
"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-1.9"
},
"capability": {
"level": "high",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"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": [
"untrusted-input",
"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 (17 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 (bin/drawlatch.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`bin/drawlatch.js:10`): 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": "bin/drawlatch.js"
},
"evidence": "rt { spawn } from \"node:child_process\"; import { existsSync, readFileSync, writeFileSync, unlinkSync, mkdirSyn",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "bin/drawlatch.js",
"line": 10,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/remote/tunnel.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/remote/tunnel.js:12`): 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/remote/tunnel.js"
},
"evidence": "rt { spawn } from 'node:child_process'; import { createLogger } from '../shared/logger.js'; const log = createLogger('tu",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/remote/tunnel.js",
"line": 12,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-003",
"title": "Hardcoded egress to an external endpoint (bin/drawlatch.js)",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "In the server's implementation (`bin/drawlatch.js:600`): A hardcoded outbound call to a fixed external host inside server code is a classic exfiltration/telemetry channel — especially paired with reads of local data. 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": "bin/drawlatch.js"
},
"evidence": "{ const res = await fetch( `http://${connectHost(host)}:${port}/events/stream`, { signal: controller.sig",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"data": {
"rule": "MTC-SRC-003",
"file": "bin/drawlatch.js",
"line": 600,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-005",
"title": "Dynamic module load from a non-literal (bin/drawlatch.js)",
"category": "permissions",
"severity": "medium",
"confidence": "heuristic",
"description": "In the server's implementation (`bin/drawlatch.js:414`): Loading a module chosen at runtime (from a variable) can pull in and run attacker-influenced code paths. 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": "bin/drawlatch.js"
},
"evidence": "const { main } = await import(SERVER_ENTRY); main(); } async function cmdStop() { const pid = readPid(); if (!pi",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-005",
"file": "bin/drawlatch.js",
"line": 414,
"nonRuntime": false
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "secure_request",
"tags": [],
"reasons": {}
},
{
"tool": "list_routes",
"tags": [],
"reasons": {}
},
{
"tool": "poll_events",
"tags": [],
"reasons": {}
},
{
"tool": "ingestor_status",
"tags": [],
"reasons": {}
},
{
"tool": "test_connection",
"tags": [],
"reasons": {}
},
{
"tool": "test_ingestor",
"tags": [],
"reasons": {}
},
{
"tool": "list_listener_configs",
"tags": [],
"reasons": {}
},
{
"tool": "resolve_listener_options",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "control_listener",
"tags": [],
"reasons": {}
},
{
"tool": "get_listener_params",
"tags": [],
"reasons": {}
},
{
"tool": "set_listener_params",
"tags": [],
"reasons": {}
},
{
"tool": "list_listener_instances",
"tags": [],
"reasons": {}
},
{
"tool": "delete_listener_instance",
"tags": [],
"reasons": {}
},
{
"tool": "list_connection_templates",
"tags": [],
"reasons": {}
},
{
"tool": "set_connection_enabled",
"tags": [],
"reasons": {}
},
{
"tool": "set_secrets",
"tags": [],
"reasons": {}
},
{
"tool": "get_secret_status",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"get_secret\""
]
}
}
],
"surfaceDigest": "07d6fa2b858c00a1a45433e00eb52e90bba7f5f225e28191351f86cbd0541f99",
"stats": {
"tools": 17,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 2,
"medium": 2,
"low": 0,
"info": 0
}
}
}