Getbelmo — 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": "@getbelmo/mcp-server",
"source": {
"kind": "package",
"origin": "@getbelmo/mcp-server"
},
"server": {
"name": "@getbelmo/mcp-server"
}
},
"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)",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"can execute shell commands or code"
],
"tags": [
"sensitive-source",
"untrusted-input",
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (40 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 (main.cjs)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`main.cjs:327`): 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": "main.cjs"
},
"evidence": "n-browser.ts var import_child_process = require(\"child_process\"); function openBrowser(url) { try { const platform",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "main.cjs",
"line": 327,
"nonRuntime": false
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "auth_login",
"tags": [],
"reasons": {}
},
{
"tool": "auth_token",
"tags": [],
"reasons": {}
},
{
"tool": "auth_status",
"tags": [],
"reasons": {}
},
{
"tool": "auth_logout",
"tags": [],
"reasons": {}
},
{
"tool": "auth_signup",
"tags": [],
"reasons": {}
},
{
"tool": "list_workspaces",
"tags": [],
"reasons": {}
},
{
"tool": "create_workspace",
"tags": [],
"reasons": {}
},
{
"tool": "select_workspace",
"tags": [],
"reasons": {}
},
{
"tool": "connect_github",
"tags": [],
"reasons": {}
},
{
"tool": "list_repositories",
"tags": [],
"reasons": {}
},
{
"tool": "list_branches",
"tags": [],
"reasons": {}
},
{
"tool": "deploy",
"tags": [],
"reasons": {}
},
{
"tool": "list_deployments",
"tags": [],
"reasons": {}
},
{
"tool": "get_deployment",
"tags": [],
"reasons": {}
},
{
"tool": "update_deployment",
"tags": [],
"reasons": {}
},
{
"tool": "get_logs",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"get_logs\""
]
}
},
{
"tool": "list_builds",
"tags": [],
"reasons": {}
},
{
"tool": "get_build_logs",
"tags": [],
"reasons": {}
},
{
"tool": "redeploy",
"tags": [],
"reasons": {}
},
{
"tool": "rollback_deployment",
"tags": [],
"reasons": {}
},
{
"tool": "stop_deployment",
"tags": [],
"reasons": {}
},
{
"tool": "start_deployment",
"tags": [],
"reasons": {}
},
{
"tool": "set_env_vars",
"tags": [],
"reasons": {}
},
{
"tool": "list_env_vars",
"tags": [],
"reasons": {}
},
{
"tool": "delete_env_var",
"tags": [],
"reasons": {}
},
{
"tool": "get_subscription",
"tags": [],
"reasons": {}
},
{
"tool": "attach_domain",
"tags": [],
"reasons": {}
},
{
"tool": "verify_domain",
"tags": [],
"reasons": {}
},
{
"tool": "create_project",
"tags": [],
"reasons": {}
},
{
"tool": "list_projects",
"tags": [],
"reasons": {}
},
{
"tool": "project_link",
"tags": [],
"reasons": {}
},
{
"tool": "project_status",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "env_pull",
"tags": [],
"reasons": {}
},
{
"tool": "logs_fetch",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "setup_gtm_server",
"tags": [],
"reasons": {}
},
{
"tool": "list_gtm_servers",
"tags": [],
"reasons": {}
},
{
"tool": "get_gtm_server",
"tags": [],
"reasons": {}
},
{
"tool": "update_gtm_container_config",
"tags": [],
"reasons": {}
},
{
"tool": "redeploy_gtm_server",
"tags": [],
"reasons": {}
},
{
"tool": "delete_gtm_server",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "4bc22f77d040b613aea54bf9c8576869d5239a2e991fe9cd8352961d5dcceb51",
"stats": {
"tools": 40,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 0,
"low": 0,
"info": 0
}
}
}