Github — 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": "@rz195440/server-github-mcp",
"source": {
"kind": "package",
"origin": "@rz195440/server-github-mcp"
},
"server": {
"name": "@rz195440/server-github-mcp"
}
},
"grade": "B",
"score": {
"score": 89,
"threatScore": 96,
"grade": "B",
"band": "B",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 3.6,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "threat",
"ruleId": "MTC-SUP-006",
"category": "supply-chain",
"severity": "medium",
"confidence": "heuristic",
"rawWeight": 9,
"confidenceMult": 0.4,
"diminishingFactor": 1,
"appliedPenalty": 3.6
},
{
"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": [
"can send data / act on an external service",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)"
],
"tags": [
"sensitive-source",
"external-sink"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (28 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-FLOW-004",
"title": "Sensitive-source and external-sink co-exist",
"category": "exfiltration",
"severity": "high",
"confidence": "strong",
"description": "Tools that read sensitive data ([get_file_contents]) and tools that can send data out ([create_issue, create_pull_request, create_pull_request_review]) are exposed together. An agent can move private data to the sink.",
"remediation": "Keep secret-reading and egress capabilities on separate, separately-approved servers.",
"location": {
"kind": "flow",
"name": "get_file_contents → create_issue"
},
"evidence": "sources [get_file_contents] → sinks [create_issue, create_pull_request, create_pull_request_review]",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"sources": [
"get_file_contents"
],
"sinks": [
"create_issue",
"create_pull_request",
"create_pull_request_review"
]
}
},
{
"ruleId": "MTC-SUP-006",
"title": "Possible combosquat of @modelcontextprotocol/server-github",
"category": "supply-chain",
"severity": "medium",
"confidence": "heuristic",
"description": "\"@rz195440/server-github-mcp\" is \"@modelcontextprotocol/server-github\" with a decorative suffix — a common combosquat pattern.",
"remediation": "Confirm you meant \"@modelcontextprotocol/server-github\". Install packages only from their documented, official name.",
"location": {
"kind": "package",
"name": "@rz195440/server-github-mcp"
},
"owasp": "LLM03:2025 Supply Chain",
"references": [
"https://github.com/ossf/package-analysis",
"https://owasp.org/www-project-top-10-ci-cd-security-risks/"
],
"data": {
"candidate": "@rz195440/server-github-mcp",
"target": "@modelcontextprotocol/server-github"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "high",
"confidence": "strong",
"untrustedInput": [],
"sensitiveSource": [
"get_file_contents"
],
"externalSink": [
"create_issue",
"create_pull_request",
"create_pull_request_review"
],
"selfContained": false,
"path": [
"get_file_contents",
"create_issue"
],
"pathWired": false,
"description": "A sensitive-source → external-sink chain exists: get_file_contents → create_issue."
}
],
"capabilities": [
{
"tool": "create_or_update_file",
"tags": [],
"reasons": {}
},
{
"tool": "search_repositories",
"tags": [],
"reasons": {}
},
{
"tool": "create_repository",
"tags": [],
"reasons": {}
},
{
"tool": "get_file_contents",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"get_file_contents\""
]
}
},
{
"tool": "push_files",
"tags": [],
"reasons": {}
},
{
"tool": "create_issue",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"create_issue\""
]
}
},
{
"tool": "create_pull_request",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"create_pull_request\""
]
}
},
{
"tool": "fork_repository",
"tags": [],
"reasons": {}
},
{
"tool": "create_branch",
"tags": [],
"reasons": {}
},
{
"tool": "list_commits",
"tags": [],
"reasons": {}
},
{
"tool": "list_issues",
"tags": [],
"reasons": {}
},
{
"tool": "update_issue",
"tags": [],
"reasons": {}
},
{
"tool": "add_issue_comment",
"tags": [],
"reasons": {}
},
{
"tool": "search_code",
"tags": [],
"reasons": {}
},
{
"tool": "search_issues",
"tags": [],
"reasons": {}
},
{
"tool": "search_users",
"tags": [],
"reasons": {}
},
{
"tool": "get_issue",
"tags": [],
"reasons": {}
},
{
"tool": "get_pull_request",
"tags": [],
"reasons": {}
},
{
"tool": "list_pull_requests",
"tags": [],
"reasons": {}
},
{
"tool": "create_pull_request_review",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"create_pull_request\""
]
}
},
{
"tool": "merge_pull_request",
"tags": [],
"reasons": {}
},
{
"tool": "get_pull_request_files",
"tags": [],
"reasons": {}
},
{
"tool": "get_pull_request_status",
"tags": [],
"reasons": {}
},
{
"tool": "update_pull_request_branch",
"tags": [],
"reasons": {}
},
{
"tool": "get_pull_request_comments",
"tags": [],
"reasons": {}
},
{
"tool": "get_pull_request_reviews",
"tags": [],
"reasons": {}
},
{
"tool": "add_pr_summary_comment",
"tags": [],
"reasons": {}
},
{
"tool": "add_pr_line_comment",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "aa376ebce116f60457b106c37318e0e72ad4c777252b1763a99a792cc07cb44d",
"stats": {
"tools": 28,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 1,
"low": 0,
"info": 0
}
}
}