Defernowork — 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": "defernowork-mcp",
"source": {
"kind": "package",
"origin": "defernowork-mcp"
},
"server": {
"name": "defernowork-mcp"
}
},
"grade": "A",
"score": {
"score": 96,
"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": "moderate",
"label": "capability blast radius (moderate) — client exposure if the model is manipulated",
"appliedPenalty": 3
},
{
"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": "moderate",
"reasons": [
"reads sensitive or local data"
],
"tags": [
"sensitive-source"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (81 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 (tests/e2e-bottle/helpers/claude_code.py)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tests/e2e-bottle/helpers/claude_code.py:86`): 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": "tests/e2e-bottle/helpers/claude_code.py"
},
"evidence": "url: str) -> None: subprocess.run( [\"claude\", \"mcp\", \"add\", \"--transport\", \"http\", name, url], chec",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "tests/e2e-bottle/helpers/claude_code.py",
"line": 86,
"nonRuntime": true
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in packaging/dev tooling (tests/e2e-bottle/test_self.py)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tests/e2e-bottle/test_self.py:23`): 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": "tests/e2e-bottle/test_self.py"
},
"evidence": "not on PATH\" out = subprocess.run([\"claude\", \"--version\"], capture_output=True, text=True) assert out.returncod",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "tests/e2e-bottle/test_self.py",
"line": 23,
"nonRuntime": true
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "start_auth",
"tags": [],
"reasons": {}
},
{
"tool": "complete_auth",
"tags": [],
"reasons": {}
},
{
"tool": "logout",
"tags": [],
"reasons": {}
},
{
"tool": "whoami",
"tags": [],
"reasons": {}
},
{
"tool": "get_settings",
"tags": [],
"reasons": {}
},
{
"tool": "update_settings",
"tags": [],
"reasons": {}
},
{
"tool": "create_chore",
"tags": [],
"reasons": {}
},
{
"tool": "update_chore",
"tags": [],
"reasons": {}
},
{
"tool": "delete_chore",
"tags": [],
"reasons": {}
},
{
"tool": "list_chore_occurrences",
"tags": [],
"reasons": {}
},
{
"tool": "set_chore_occurrence_status",
"tags": [],
"reasons": {}
},
{
"tool": "mark_next_chore_done",
"tags": [],
"reasons": {}
},
{
"tool": "reschedule_chore_occurrence",
"tags": [],
"reasons": {}
},
{
"tool": "update_comment",
"tags": [],
"reasons": {}
},
{
"tool": "delete_comment",
"tags": [],
"reasons": {}
},
{
"tool": "get_daily_plan",
"tags": [],
"reasons": {}
},
{
"tool": "add_to_plan",
"tags": [],
"reasons": {}
},
{
"tool": "remove_from_plan",
"tags": [],
"reasons": {}
},
{
"tool": "reorder_plan",
"tags": [],
"reasons": {}
},
{
"tool": "get_calendar_events",
"tags": [],
"reasons": {}
},
{
"tool": "list_event_occurrences",
"tags": [],
"reasons": {}
},
{
"tool": "set_event_occurrence",
"tags": [],
"reasons": {}
},
{
"tool": "delete_event_occurrence",
"tags": [],
"reasons": {}
},
{
"tool": "reschedule_event_occurrence",
"tags": [],
"reasons": {}
},
{
"tool": "presign_event_occurrence_attachments",
"tags": [],
"reasons": {}
},
{
"tool": "commit_event_occurrence_attachments",
"tags": [],
"reasons": {}
},
{
"tool": "list_event_occurrence_attachments",
"tags": [],
"reasons": {}
},
{
"tool": "delete_event_occurrence_attachment",
"tags": [],
"reasons": {}
},
{
"tool": "post_event_occurrence_comment",
"tags": [],
"reasons": {}
},
{
"tool": "patch_event_occurrence_comment",
"tags": [],
"reasons": {}
},
{
"tool": "delete_event_occurrence_comment",
"tags": [],
"reasons": {}
},
{
"tool": "create_event",
"tags": [],
"reasons": {}
},
{
"tool": "update_event",
"tags": [],
"reasons": {}
},
{
"tool": "delete_event",
"tags": [],
"reasons": {}
},
{
"tool": "list_feedback",
"tags": [],
"reasons": {}
},
{
"tool": "feedback_stats",
"tags": [],
"reasons": {}
},
{
"tool": "update_feedback",
"tags": [],
"reasons": {}
},
{
"tool": "create_habit",
"tags": [],
"reasons": {}
},
{
"tool": "update_habit",
"tags": [],
"reasons": {}
},
{
"tool": "delete_habit",
"tags": [],
"reasons": {}
},
{
"tool": "list_habit_occurrences",
"tags": [],
"reasons": {}
},
{
"tool": "mark_habit_occurrence",
"tags": [],
"reasons": {}
},
{
"tool": "clear_habit_occurrence",
"tags": [],
"reasons": {}
},
{
"tool": "reschedule_habit_occurrence",
"tags": [],
"reasons": {}
},
{
"tool": "get_item",
"tags": [],
"reasons": {}
},
{
"tool": "list_items",
"tags": [],
"reasons": {}
},
{
"tool": "search_items",
"tags": [],
"reasons": {}
},
{
"tool": "get_items_calendar",
"tags": [],
"reasons": {}
},
{
"tool": "get_items_plan",
"tags": [],
"reasons": {}
},
{
"tool": "add_to_items_plan",
"tags": [],
"reasons": {}
},
{
"tool": "remove_from_items_plan",
"tags": [],
"reasons": {}
},
{
"tool": "reorder_items_plan",
"tags": [],
"reasons": {}
},
{
"tool": "convert_item",
"tags": [],
"reasons": {}
},
{
"tool": "get_item_history",
"tags": [],
"reasons": {}
},
{
"tool": "set_item_pinned",
"tags": [],
"reasons": {}
},
{
"tool": "list_pinned_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "reorder_pinned_tasks",
"tags": [],
"reasons": {}
},
{
"tool": "update_pinned_label",
"tags": [],
"reasons": {}
},
{
"tool": "list_saved_searches",
"tags": [],
"reasons": {}
},
{
"tool": "create_saved_search",
"tags": [],
"reasons": {}
},
{
"tool": "update_saved_search",
"tags": [],
"reasons": {}
},
{
"tool": "delete_saved_search",
"tags": [],
"reasons": {}
},
{
"tool": "reorder_saved_searches",
"tags": [],
"reasons": {}
},
{
"tool": "presign_task_attachments",
"tags": [],
"reasons": {}
},
{
"tool": "commit_task_attachments",
"tags": [],
"reasons": {}
},
{
"tool": "list_task_attachments",
"tags": [],
"reasons": {}
},
{
"tool": "delete_task_attachment",
"tags": [],
"reasons": {}
},
{
"tool": "create_task",
"tags": [],
"reasons": {}
},
{
"tool": "update_task",
"tags": [],
"reasons": {}
},
{
"tool": "set_task_status",
"tags": [],
"reasons": {}
},
{
"tool": "move_task",
"tags": [],
"reasons": {}
},
{
"tool": "split_task",
"tags": [],
"reasons": {}
},
{
"tool": "fold_task",
"tags": [],
"reasons": {}
},
{
"tool": "merge_task",
"tags": [],
"reasons": {}
},
{
"tool": "get_mood_history",
"tags": [],
"reasons": {}
},
{
"tool": "export_data",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"export_data\""
]
}
},
{
"tool": "delete_task",
"tags": [],
"reasons": {}
},
{
"tool": "get_tasks_calendar",
"tags": [],
"reasons": {}
},
{
"tool": "import_data",
"tags": [],
"reasons": {}
},
{
"tool": "promote_task",
"tags": [],
"reasons": {}
},
{
"tool": "batch_tasks",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "5c89c7c7060c5b1c6e241a4b239ba35f7df2363de772244b0c8096059caf65ba",
"stats": {
"tools": 81,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 2,
"info": 0
}
}
}