Developer Tools — 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": "developer-tools-mcp",
"source": {
"kind": "package",
"origin": "developer-tools-mcp"
},
"server": {
"name": "developer-tools-mcp"
}
},
"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": [
"ingests untrusted external content (a prompt-injection entry point)",
"can send data / act on an external service",
"can execute shell commands or code"
],
"tags": [
"untrusted-input",
"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 (63 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-CAP-001",
"title": "Tool \"run-script\" exposes command/code execution",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "Tool \"run-script\" appears to run shell commands or evaluate code (keyword \"run_script\" 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": "run-script"
},
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-FLOW-005",
"title": "Untrusted input can drive an external action",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "Untrusted-input tools ([get-page-errors, get-page-title, get-page-url, get-page-content]) co-exist with external-action tools ([run-script, upload-file, perform-api-request]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.",
"remediation": "Require confirmation for state-changing/egress actions triggered after processing untrusted content.",
"location": {
"kind": "flow",
"name": "get-page-errors → run-script"
},
"evidence": "untrusted [get-page-errors, get-page-title, get-page-url, get-page-content] → sinks [run-script, upload-file, perform-api-request]",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"get-page-errors",
"get-page-title",
"get-page-url",
"get-page-content"
],
"sinks": [
"run-script",
"upload-file",
"perform-api-request"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"run-script\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"run-script\" 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": "run-script"
},
"data": {
"tags": [
"code-exec"
]
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"get-page-errors",
"get-page-title",
"get-page-url",
"get-page-content"
],
"sensitiveSource": [],
"externalSink": [
"run-script",
"upload-file",
"perform-api-request"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "analyze-performance",
"tags": [],
"reasons": {}
},
{
"tool": "analyze-accessibility",
"tags": [],
"reasons": {}
},
{
"tool": "analyze-seo",
"tags": [],
"reasons": {}
},
{
"tool": "analyze-code-coverage",
"tags": [],
"reasons": {}
},
{
"tool": "check-security-headers",
"tags": [],
"reasons": {}
},
{
"tool": "set-cookie",
"tags": [],
"reasons": {}
},
{
"tool": "get-all-cookies",
"tags": [],
"reasons": {}
},
{
"tool": "get-cookie-by-name",
"tags": [],
"reasons": {}
},
{
"tool": "get-cookies-by-domain",
"tags": [],
"reasons": {}
},
{
"tool": "get-console-logs",
"tags": [],
"reasons": {}
},
{
"tool": "get-page-errors",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"get_page\""
]
}
},
{
"tool": "run-script",
"tags": [
"code-exec"
],
"reasons": {
"code-exec": [
"keyword \"run_script\" in tool name"
]
}
},
{
"tool": "get-network-requests",
"tags": [],
"reasons": {}
},
{
"tool": "get-element-text",
"tags": [],
"reasons": {}
},
{
"tool": "get-element-html",
"tags": [],
"reasons": {}
},
{
"tool": "get-element-value",
"tags": [],
"reasons": {}
},
{
"tool": "get-element-attribute",
"tags": [],
"reasons": {}
},
{
"tool": "get-element-property",
"tags": [],
"reasons": {}
},
{
"tool": "get-element-count",
"tags": [],
"reasons": {}
},
{
"tool": "get-child-elements",
"tags": [],
"reasons": {}
},
{
"tool": "get-parent-element",
"tags": [],
"reasons": {}
},
{
"tool": "get-element-position",
"tags": [],
"reasons": {}
},
{
"tool": "get-element-style",
"tags": [],
"reasons": {}
},
{
"tool": "get-element-visibility",
"tags": [],
"reasons": {}
},
{
"tool": "get-computed-style",
"tags": [],
"reasons": {}
},
{
"tool": "get-all-clickable-elements",
"tags": [],
"reasons": {}
},
{
"tool": "click-element",
"tags": [],
"reasons": {}
},
{
"tool": "type-text-in-element",
"tags": [],
"reasons": {}
},
{
"tool": "scroll-to-element",
"tags": [],
"reasons": {}
},
{
"tool": "scroll-to-top",
"tags": [],
"reasons": {}
},
{
"tool": "scroll-to-bottom",
"tags": [],
"reasons": {}
},
{
"tool": "scroll-to-position",
"tags": [],
"reasons": {}
},
{
"tool": "hover-element",
"tags": [],
"reasons": {}
},
{
"tool": "press-key",
"tags": [],
"reasons": {}
},
{
"tool": "press-keys",
"tags": [],
"reasons": {}
},
{
"tool": "upload-file",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"upload_file\""
]
}
},
{
"tool": "submit-form",
"tags": [],
"reasons": {}
},
{
"tool": "handle-dialog",
"tags": [],
"reasons": {}
},
{
"tool": "perform-api-request",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"http_request\""
]
}
},
{
"tool": "get-resource-usage",
"tags": [],
"reasons": {}
},
{
"tool": "get-utc-time",
"tags": [],
"reasons": {}
},
{
"tool": "get-local-time",
"tags": [],
"reasons": {}
},
{
"tool": "create-page",
"tags": [],
"reasons": {}
},
{
"tool": "close-page",
"tags": [],
"reasons": {}
},
{
"tool": "switch-page",
"tags": [],
"reasons": {}
},
{
"tool": "list-pages",
"tags": [],
"reasons": {}
},
{
"tool": "get-page-title",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"get_page\""
]
}
},
{
"tool": "get-page-url",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"get_page\""
]
}
},
{
"tool": "refresh-page",
"tags": [],
"reasons": {}
},
{
"tool": "switch-to-frame",
"tags": [],
"reasons": {}
},
{
"tool": "navigate-to-url",
"tags": [],
"reasons": {}
},
{
"tool": "wait-for-page-load",
"tags": [],
"reasons": {}
},
{
"tool": "wait-for-element",
"tags": [],
"reasons": {}
},
{
"tool": "get-page-content",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"get_page\""
]
}
},
{
"tool": "check-if-dialog-is-open",
"tags": [],
"reasons": {}
},
{
"tool": "ssh-list-connections",
"tags": [],
"reasons": {}
},
{
"tool": "ssh-connect",
"tags": [],
"reasons": {}
},
{
"tool": "ssh-disconnect",
"tags": [],
"reasons": {}
},
{
"tool": "ssh-execute",
"tags": [],
"reasons": {}
},
{
"tool": "get-screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "get-full-page-screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "generate-pdf",
"tags": [],
"reasons": {}
},
{
"tool": "emulate-device",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "5f95a736f02d9e35a1c05ceaf328a52093fbc1a3d3567372775ee783258e2f8c",
"stats": {
"tools": 63,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 1,
"low": 1,
"info": 0
}
}
}