Devto — 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": "devto-mcp",
"source": {
"kind": "package",
"origin": "devto-mcp"
},
"server": {
"name": "devto-mcp"
}
},
"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": [
"can send data / act on an external service",
"can execute shell commands or code"
],
"tags": [
"code-exec",
"external-sink"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (44 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/cli.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/cli.js:195`): 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.js"
},
"evidence": "st { spawn } = require(\"child_process\"); const platform = process.platform; if (platform === \"darwin\") {",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/cli.js",
"line": 195,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-003",
"title": "Hardcoded egress to an external endpoint (dist/index.js)",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "In the server's implementation (`dist/index.js:13`): 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/index.js"
},
"evidence": "const res = await fetch(\"https://registry.npmjs.org/devto-mcp/latest\", { signal: AbortSignal.timeout(5",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"data": {
"rule": "MTC-SRC-003",
"file": "dist/index.js",
"line": 13,
"nonRuntime": false
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "get_project_summary",
"tags": [],
"reasons": {}
},
{
"tool": "create_plan",
"tags": [],
"reasons": {}
},
{
"tool": "confirm_plan",
"tags": [],
"reasons": {}
},
{
"tool": "create_epic",
"tags": [],
"reasons": {}
},
{
"tool": "create_task",
"tags": [],
"reasons": {}
},
{
"tool": "create_subtask",
"tags": [],
"reasons": {}
},
{
"tool": "get_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "update_task",
"tags": [],
"reasons": {}
},
{
"tool": "get_comments",
"tags": [],
"reasons": {}
},
{
"tool": "list_epics",
"tags": [],
"reasons": {}
},
{
"tool": "update_epic",
"tags": [],
"reasons": {}
},
{
"tool": "get_epic",
"tags": [],
"reasons": {}
},
{
"tool": "delete_comment",
"tags": [],
"reasons": {}
},
{
"tool": "add_comment",
"tags": [],
"reasons": {}
},
{
"tool": "delete_issue",
"tags": [],
"reasons": {}
},
{
"tool": "list_sprints",
"tags": [],
"reasons": {}
},
{
"tool": "create_sprint",
"tags": [],
"reasons": {}
},
{
"tool": "move_to_sprint",
"tags": [],
"reasons": {}
},
{
"tool": "manage_sprint",
"tags": [],
"reasons": {}
},
{
"tool": "get_status",
"tags": [],
"reasons": {}
},
{
"tool": "search_issues",
"tags": [],
"reasons": {}
},
{
"tool": "get_priorities",
"tags": [],
"reasons": {}
},
{
"tool": "get_statuses",
"tags": [],
"reasons": {}
},
{
"tool": "get_issue_types",
"tags": [],
"reasons": {}
},
{
"tool": "get_labels",
"tags": [],
"reasons": {}
},
{
"tool": "get_components",
"tags": [],
"reasons": {}
},
{
"tool": "get_assignable_users",
"tags": [],
"reasons": {}
},
{
"tool": "get_custom_fields",
"tags": [],
"reasons": {}
},
{
"tool": "link_issues",
"tags": [],
"reasons": {}
},
{
"tool": "get_issue_links",
"tags": [],
"reasons": {}
},
{
"tool": "get_link_types",
"tags": [],
"reasons": {}
},
{
"tool": "log_work",
"tags": [],
"reasons": {}
},
{
"tool": "get_worklog",
"tags": [],
"reasons": {}
},
{
"tool": "set_estimate",
"tags": [],
"reasons": {}
},
{
"tool": "list_versions",
"tags": [],
"reasons": {}
},
{
"tool": "create_version",
"tags": [],
"reasons": {}
},
{
"tool": "release_version",
"tags": [],
"reasons": {}
},
{
"tool": "get_backlog",
"tags": [],
"reasons": {}
},
{
"tool": "move_to_backlog",
"tags": [],
"reasons": {}
},
{
"tool": "bulk_create_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "bulk_update_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "attach_file",
"tags": [],
"reasons": {}
},
{
"tool": "list_attachments",
"tags": [],
"reasons": {}
},
{
"tool": "manage_watchers",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "af66a6e026df8aee1866d1408bcfdde1cc3fe7563b38dc995cb006ab1b79fd70",
"stats": {
"tools": 44,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 1,
"low": 0,
"info": 0
}
}
}