Libscope — 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": "libscope",
"source": {
"kind": "package",
"origin": "libscope"
},
"server": {
"name": "libscope"
}
},
"grade": "A",
"score": {
"score": 94,
"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": "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": "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",
"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 (31 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 (dist/api/indexing/repoIndexer.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/api/indexing/repoIndexer.js:1`): 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/api/indexing/repoIndexer.js"
},
"evidence": "ecFileSync } from \"node:child_process\"; import { readdirSync, readFileSync, rmSync, statSync, existsSync } from \"node:fs",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/api/indexing/repoIndexer.js",
"line": 1,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/cli/index.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/cli/index.js:31`): 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/cli/index.js"
},
"evidence": "spawnSync } from \"node:child_process\"; import { createRequire } from \"node:module\"; import { FileWatcher, DEFAULT_WATCH",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/cli/index.js",
"line": 31,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/registry/git.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/registry/git.js:5`): 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/registry/git.js"
},
"evidence": "execFileCb } from \"node:child_process\"; import { promisify } from \"node:util\"; import { existsSync, readFileSync, writeF",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/registry/git.js",
"line": 5,
"nonRuntime": false
}
},
{
"ruleId": "MTC-FLOW-005",
"title": "Untrusted input can drive an external action",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "Untrusted-input tools ([submit-document]) co-exist with external-action tools ([create-webhook, delete-webhook]). 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": "submit-document → create-webhook"
},
"evidence": "untrusted [submit-document] → sinks [create-webhook, delete-webhook]",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"submit-document"
],
"sinks": [
"create-webhook",
"delete-webhook"
]
}
},
{
"ruleId": "MTC-SRC-003",
"title": "Hardcoded egress to an external endpoint (dist/core/rag.js)",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "In the server's implementation (`dist/core/rag.js:82`): 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": "dist/core/rag.js"
},
"evidence": "res = await fetch(\"https://api.openai.com/v1/chat/completions\", { method: \"POST\",",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"data": {
"rule": "MTC-SRC-003",
"file": "dist/core/rag.js",
"line": 82,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-005",
"title": "Dynamic module load from a non-literal (dist/lite/chunker-treesitter.js)",
"category": "permissions",
"severity": "medium",
"confidence": "heuristic",
"description": "In the server's implementation (`dist/lite/chunker-treesitter.js:262`): 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": "dist/lite/chunker-treesitter.js"
},
"evidence": "const mod = (await import(packageName)); // Grammar packages typically export the language as the defau",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-005",
"file": "dist/lite/chunker-treesitter.js",
"line": 262,
"nonRuntime": false
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"submit-document"
],
"sensitiveSource": [],
"externalSink": [
"create-webhook",
"delete-webhook"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "search-docs",
"tags": [],
"reasons": {}
},
{
"tool": "get-related",
"tags": [],
"reasons": {}
},
{
"tool": "get-document",
"tags": [],
"reasons": {}
},
{
"tool": "delete-document",
"tags": [],
"reasons": {}
},
{
"tool": "update-document",
"tags": [],
"reasons": {}
},
{
"tool": "rate-document",
"tags": [],
"reasons": {}
},
{
"tool": "submit-document",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "list-topics",
"tags": [],
"reasons": {}
},
{
"tool": "health-check",
"tags": [],
"reasons": {}
},
{
"tool": "list-documents",
"tags": [],
"reasons": {}
},
{
"tool": "ask-question",
"tags": [],
"reasons": {}
},
{
"tool": "reindex-documents",
"tags": [],
"reasons": {}
},
{
"tool": "sync-slack",
"tags": [],
"reasons": {}
},
{
"tool": "install-pack",
"tags": [],
"reasons": {}
},
{
"tool": "list-packs",
"tags": [],
"reasons": {}
},
{
"tool": "sync-onenote",
"tags": [],
"reasons": {}
},
{
"tool": "sync-notion",
"tags": [],
"reasons": {}
},
{
"tool": "sync-obsidian-vault",
"tags": [],
"reasons": {}
},
{
"tool": "sync-confluence",
"tags": [],
"reasons": {}
},
{
"tool": "search-analytics",
"tags": [],
"reasons": {}
},
{
"tool": "link-documents",
"tags": [],
"reasons": {}
},
{
"tool": "get-document-links",
"tags": [],
"reasons": {}
},
{
"tool": "delete-link",
"tags": [],
"reasons": {}
},
{
"tool": "save-search",
"tags": [],
"reasons": {}
},
{
"tool": "suggest-tags",
"tags": [],
"reasons": {}
},
{
"tool": "list-saved-searches",
"tags": [],
"reasons": {}
},
{
"tool": "run-saved-search",
"tags": [],
"reasons": {}
},
{
"tool": "delete-saved-search",
"tags": [],
"reasons": {}
},
{
"tool": "create-webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "list-webhooks",
"tags": [],
"reasons": {}
},
{
"tool": "delete-webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
}
],
"surfaceDigest": "3d94e9406d11794936a96620e827591036f97443497643763ec0fe3d4b55fbec",
"stats": {
"tools": 31,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 3,
"medium": 3,
"low": 0,
"info": 0
}
}
}