Vitest Agent — 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": "@vitest-agent/mcp",
"source": {
"kind": "package",
"origin": "@vitest-agent/mcp"
},
"server": {
"name": "@vitest-agent/mcp"
}
},
"grade": "A",
"score": {
"score": 100,
"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": "minimal",
"label": "capability blast radius (minimal) — client exposure if the model is manipulated",
"appliedPenalty": 0
},
{
"kind": "client",
"term": "verification-discount",
"level": "source",
"label": "publisher verification (provenance) — cryptographic build provenance ties the artifact to its source",
"appliedPenalty": 0
},
{
"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": "minimal",
"reasons": [],
"tags": []
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (30 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 packaging/dev tooling (tools/run-tests.js)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tools/run-tests.js:6`): 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": "tools/run-tests.js"
},
"evidence": "{ execFile } from \"node:child_process\"; import { existsSync, mkdtempSync, rmSync } from \"node:fs\"; import { realpath, st",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "tools/run-tests.js",
"line": 6,
"nonRuntime": true
}
},
{
"ruleId": "MTC-SRC-005",
"title": "Dynamic module load from a non-literal in packaging/dev tooling (tools/run-tests.js)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tools/run-tests.js:335`): 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": "tools/run-tests.js"
},
"evidence": "er = { load: (entry) => import(entry) }; const runTestsSemaphore = Effect.runSync(Semaphore.make(1)); function serialize",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-005",
"file": "tools/run-tests.js",
"line": 335,
"nonRuntime": true
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "help",
"tags": [],
"reasons": {}
},
{
"tool": "test_status",
"tags": [],
"reasons": {}
},
{
"tool": "test_overview",
"tags": [],
"reasons": {}
},
{
"tool": "test_coverage",
"tags": [],
"reasons": {}
},
{
"tool": "test_history",
"tags": [],
"reasons": {}
},
{
"tool": "test_trends",
"tags": [],
"reasons": {}
},
{
"tool": "test_errors",
"tags": [],
"reasons": {}
},
{
"tool": "test",
"tags": [],
"reasons": {}
},
{
"tool": "file_coverage",
"tags": [],
"reasons": {}
},
{
"tool": "configure",
"tags": [],
"reasons": {}
},
{
"tool": "cache_health",
"tags": [],
"reasons": {}
},
{
"tool": "inventory",
"tags": [],
"reasons": {}
},
{
"tool": "settings_list",
"tags": [],
"reasons": {}
},
{
"tool": "register_agent",
"tags": [],
"reasons": {}
},
{
"tool": "run_tests",
"tags": [],
"reasons": {}
},
{
"tool": "note",
"tags": [],
"reasons": {}
},
{
"tool": "turn_search",
"tags": [],
"reasons": {}
},
{
"tool": "failure_signature_get",
"tags": [],
"reasons": {}
},
{
"tool": "tdd_task",
"tags": [],
"reasons": {}
},
{
"tool": "tdd_phase_transition_request",
"tags": [],
"reasons": {}
},
{
"tool": "tdd_goal",
"tags": [],
"reasons": {}
},
{
"tool": "tdd_behavior",
"tags": [],
"reasons": {}
},
{
"tool": "tdd_artifact_list",
"tags": [],
"reasons": {}
},
{
"tool": "hypothesis",
"tags": [],
"reasons": {}
},
{
"tool": "tdd_progress_push",
"tags": [],
"reasons": {}
},
{
"tool": "acceptance_metrics",
"tags": [],
"reasons": {}
},
{
"tool": "triage_brief",
"tags": [],
"reasons": {}
},
{
"tool": "wrapup_prompt",
"tags": [],
"reasons": {}
},
{
"tool": "commit_changes",
"tags": [],
"reasons": {}
},
{
"tool": "ping",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "80f6a333b833e8c9aee5f85adacd8bf163dcafe4ccdf288897c50ce6a02b2bbb",
"stats": {
"tools": 30,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 2,
"info": 0
}
}
}