GitHub (Mission Squad) — 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": "@missionsquad/mcp-github",
"source": {
"kind": "package",
"origin": "@missionsquad/mcp-github"
},
"server": {
"name": "@missionsquad/mcp-github"
}
},
"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",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"untrusted-input, sensitive-source and egress co-exist across tools (toxic-flow surface)"
],
"tags": [
"sensitive-source",
"external-sink",
"untrusted-input"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (74 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-002",
"title": "Completed toxic-flow trifecta across tools",
"category": "exfiltration",
"severity": "critical",
"confidence": "strong",
"description": "This server (without client built-ins) exposes a complete data-exfiltration chain: get_pull_request_reviews → get_file_contents → create_issue. Untrusted input is ingested, private data is read, and it can be sent to an external sink via the agent composing the tools (→). Static analysis proves the primitive exists, not that a specific run will occur.",
"remediation": "Remove one leg of the trifecta: isolate untrusted-input tools from secret-reading tools and from egress tools, or require human approval between them.",
"location": {
"kind": "flow",
"name": "get_pull_request_reviews → get_file_contents → create_issue"
},
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"untrusted": [
"get_pull_request_reviews",
"list_issue_comments"
],
"sources": [
"get_file_contents",
"get_pull_request_files"
],
"sinks": [
"create_issue",
"create_pull_request",
"create_pull_request_review",
"create_repository_webhook",
"update_repository_webhook",
"delete_repository_webhook",
"update_repository_webhook_config",
"ping_repository_webhook",
"redeliver_repository_webhook_delivery",
"create_organization_webhook",
"update_organization_webhook",
"delete_organization_webhook",
"update_organization_webhook_config",
"ping_organization_webhook",
"redeliver_organization_webhook_delivery"
],
"path": [
"get_pull_request_reviews",
"get_file_contents",
"create_issue"
],
"edges": [
{
"from": "get_pull_request_reviews",
"to": "get_file_contents",
"kind": "agent-mediated"
},
{
"from": "get_file_contents",
"to": "create_issue",
"kind": "agent-mediated"
}
],
"wired": false
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "critical",
"confidence": "strong",
"untrustedInput": [
"get_pull_request_reviews",
"list_issue_comments"
],
"sensitiveSource": [
"get_file_contents",
"get_pull_request_files"
],
"externalSink": [
"create_issue",
"create_pull_request",
"create_pull_request_review",
"create_repository_webhook",
"update_repository_webhook",
"delete_repository_webhook",
"update_repository_webhook_config",
"ping_repository_webhook",
"redeliver_repository_webhook_delivery",
"create_organization_webhook",
"update_organization_webhook",
"delete_organization_webhook",
"update_organization_webhook_config",
"ping_organization_webhook",
"redeliver_organization_webhook_delivery"
],
"selfContained": false,
"path": [
"get_pull_request_reviews",
"get_file_contents",
"create_issue"
],
"pathWired": false,
"description": "A cross-tool exfiltration chain exists: get_pull_request_reviews → 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": "create_release",
"tags": [],
"reasons": {}
},
{
"tool": "list_releases",
"tags": [],
"reasons": {}
},
{
"tool": "delete_release",
"tags": [],
"reasons": {}
},
{
"tool": "get_release_asset",
"tags": [],
"reasons": {}
},
{
"tool": "upload_release_asset",
"tags": [],
"reasons": {}
},
{
"tool": "create_tag",
"tags": [],
"reasons": {}
},
{
"tool": "create_pull_request_review",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"create_pull_request\""
]
}
},
{
"tool": "submit_pull_request_review",
"tags": [],
"reasons": {}
},
{
"tool": "dismiss_pull_request_review",
"tags": [],
"reasons": {}
},
{
"tool": "create_commit_status",
"tags": [],
"reasons": {}
},
{
"tool": "get_commit_statuses",
"tags": [],
"reasons": {}
},
{
"tool": "get_combined_status",
"tags": [],
"reasons": {}
},
{
"tool": "get_rate_limit",
"tags": [],
"reasons": {}
},
{
"tool": "create_gist",
"tags": [],
"reasons": {}
},
{
"tool": "list_gists",
"tags": [],
"reasons": {}
},
{
"tool": "get_gist",
"tags": [],
"reasons": {}
},
{
"tool": "list_projects",
"tags": [],
"reasons": {}
},
{
"tool": "create_project",
"tags": [],
"reasons": {}
},
{
"tool": "list_project_columns",
"tags": [],
"reasons": {}
},
{
"tool": "create_project_column",
"tags": [],
"reasons": {}
},
{
"tool": "create_project_card",
"tags": [],
"reasons": {}
},
{
"tool": "list_org_packages",
"tags": [],
"reasons": {}
},
{
"tool": "list_user_packages",
"tags": [],
"reasons": {}
},
{
"tool": "list_repo_packages",
"tags": [],
"reasons": {}
},
{
"tool": "get_org_package",
"tags": [],
"reasons": {}
},
{
"tool": "get_user_package",
"tags": [],
"reasons": {}
},
{
"tool": "get_repo_package",
"tags": [],
"reasons": {}
},
{
"tool": "list_repository_webhooks",
"tags": [],
"reasons": {}
},
{
"tool": "get_repository_webhook",
"tags": [],
"reasons": {}
},
{
"tool": "create_repository_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "update_repository_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "delete_repository_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "get_repository_webhook_config",
"tags": [],
"reasons": {}
},
{
"tool": "update_repository_webhook_config",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "ping_repository_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "list_repository_webhook_deliveries",
"tags": [],
"reasons": {}
},
{
"tool": "get_repository_webhook_delivery",
"tags": [],
"reasons": {}
},
{
"tool": "redeliver_repository_webhook_delivery",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "list_organization_webhooks",
"tags": [],
"reasons": {}
},
{
"tool": "get_organization_webhook",
"tags": [],
"reasons": {}
},
{
"tool": "create_organization_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "update_organization_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "delete_organization_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "get_organization_webhook_config",
"tags": [],
"reasons": {}
},
{
"tool": "update_organization_webhook_config",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "ping_organization_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "list_organization_webhook_deliveries",
"tags": [],
"reasons": {}
},
{
"tool": "get_organization_webhook_delivery",
"tags": [],
"reasons": {}
},
{
"tool": "redeliver_organization_webhook_delivery",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "get_pull_request_diff",
"tags": [],
"reasons": {}
},
{
"tool": "get_pull_request",
"tags": [],
"reasons": {}
},
{
"tool": "list_pull_requests",
"tags": [],
"reasons": {}
},
{
"tool": "get_pull_request_files",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"list_files\""
]
}
},
{
"tool": "get_pull_request_comments",
"tags": [],
"reasons": {}
},
{
"tool": "get_pull_request_reviews",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "get_pull_request_review_comments",
"tags": [],
"reasons": {}
},
{
"tool": "list_issue_comments",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
}
],
"surfaceDigest": "6f1cb1da6d434479ddf00b99ea16f2c04df3999548e7b4017a306fb8b6857811",
"stats": {
"tools": 74,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 1,
"high": 0,
"medium": 0,
"low": 0,
"info": 0
}
}
}