Zeph To — 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": "@zeph-to/mcp-server",
"source": {
"kind": "package",
"origin": "@zeph-to/mcp-server"
},
"server": {
"name": "@zeph-to/mcp-server"
}
},
"grade": "F",
"score": {
"score": 55,
"threatScore": 62,
"grade": "F",
"band": "F",
"gateCap": "D",
"categorySubtotals": {
"injection": 37.8,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "threat",
"ruleId": "MTC-INJ-POISON",
"category": "injection",
"severity": "critical",
"confidence": "strong",
"rawWeight": 45,
"confidenceMult": 0.7,
"diminishingFactor": 1,
"appliedPenalty": 31.5
},
{
"kind": "threat",
"ruleId": "MTC-INJ-SEM-1",
"category": "injection",
"severity": "medium",
"confidence": "strong",
"rawWeight": 9,
"confidenceMult": 0.7,
"diminishingFactor": 1,
"appliedPenalty": 6.3
},
{
"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": [
"a critical finding is present → grade capped at D"
],
"methodologyVersion": "mcptrustchecker-1.13"
},
"capability": {
"level": "high",
"reasons": [
"can send data / act on an external service",
"can execute shell commands or code"
],
"tags": [
"external-sink",
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (11 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-INJ-POISON",
"title": "Compound tool-poisoning pattern",
"category": "injection",
"severity": "critical",
"confidence": "strong",
"description": "Multiple tool-poisoning signals co-occur in a single field (secrecy, exfil-param), including a concealment / override / sensitive-target directive. Together they form an instruction aimed at the model — the canonical tool-poisoning shape, not ordinary documentation.",
"remediation": "Do not install this server; the metadata is engineered to manipulate the assistant.",
"location": {
"kind": "tool",
"name": "zeph_ask",
"field": "description"
},
"evidence": "Ask the user a question with quick-reply buttons and a text input field. Combines prompt (buttons) and input (text) in a single notification. The user can either tap a button or type a response. `acti",
"owasp": "LLM01:2025 Prompt Injection",
"data": {
"kinds": [
"secrecy",
"exfil-param"
]
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/config.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/config.js:7`): 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/config.js"
},
"evidence": "equire(\"crypto\"); const child_process_1 = require(\"child_process\"); const path_1 = require(\"path\"); const DEFAULT_BASE_U",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/config.js",
"line": 7,
"nonRuntime": false
}
},
{
"ruleId": "MTC-INJ-SEM-1",
"title": "Concealment directive aimed at the assistant (language-agnostic)",
"category": "injection",
"severity": "medium",
"confidence": "strong",
"description": "The description of tool \"zeph_ask\" combines a negation or stealth marker with a disclosure verb and a reference to the user — \"keep this from the person\" expressed as a shape rather than a fixed phrase, so it is detected regardless of wording or language. Metadata that tells the assistant what to withhold from its operator is not documentation.",
"remediation": "Tool metadata must not instruct the assistant to withhold anything from the user. Describe what the tool does; leave disclosure to the client.",
"location": {
"kind": "tool",
"name": "zeph_ask",
"field": "description"
},
"evidence": "ike zeph notify and zeph file this tool is never end to",
"owasp": "LLM01:2025 Prompt Injection",
"data": {
"shape": "secrecy-shape"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "zeph_ask",
"tags": [],
"reasons": {}
},
{
"tool": "zeph_broadcast",
"tags": [],
"reasons": {}
},
{
"tool": "zeph_clipboard",
"tags": [],
"reasons": {}
},
{
"tool": "zeph_dismiss",
"tags": [],
"reasons": {}
},
{
"tool": "zeph_dismiss_all",
"tags": [],
"reasons": {}
},
{
"tool": "zeph_file",
"tags": [],
"reasons": {}
},
{
"tool": "zeph_input",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"put_request\""
]
}
},
{
"tool": "zeph_list",
"tags": [],
"reasons": {}
},
{
"tool": "zeph_notify",
"tags": [],
"reasons": {}
},
{
"tool": "zeph_prompt",
"tags": [],
"reasons": {}
},
{
"tool": "zeph_session_rename",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "584a2953573c163255f8ccec4dcbc36e567724f74c8731ebc6e9e05c7a253f65",
"stats": {
"tools": 11,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 1,
"high": 1,
"medium": 1,
"low": 0,
"info": 0
}
}
}