Obsidian — 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": "@fazer-ai/mcp-obsidian",
"source": {
"kind": "package",
"origin": "@fazer-ai/mcp-obsidian"
},
"server": {
"name": "@fazer-ai/mcp-obsidian"
}
},
"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 create, modify or delete files",
"can execute shell commands or code"
],
"tags": [
"code-exec",
"file-write"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (24 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-CAP-001",
"title": "Tool \"obsidian_execute_command\" exposes command/code execution",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "Tool \"obsidian_execute_command\" appears to run shell commands or evaluate code (keyword \"execute command\" in tool name). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.",
"remediation": "Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.",
"location": {
"kind": "tool",
"name": "obsidian_execute_command"
},
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-SRC-001",
"title": "Dynamic code execution in server code (dist/index.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/index.js:2250`): Evaluating strings as code is the most direct RCE primitive; if any tool input reaches it, the server executes attacker-chosen code. 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": "var makeValidate = new Function(\"self\", \"RULES\", \"formats\", \"root\", \"refVal\", \"defaults\", \"customRules\", \"equal\", \"",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-001",
"file": "dist/index.js",
"line": 2250,
"nonRuntime": false
}
},
{
"ruleId": "MTC-CAP-002",
"title": "Tool \"obsidian_delete_file\" can modify the filesystem",
"category": "permissions",
"severity": "medium",
"confidence": "strong",
"description": "Tool \"obsidian_delete_file\" can write, overwrite or delete files (keyword \"delete_file\" in tool name). Verify it is scoped to a safe directory.",
"remediation": "Constrain file operations to an explicit, non-sensitive root; reject path traversal.",
"location": {
"kind": "tool",
"name": "obsidian_delete_file"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"obsidian_execute_command\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"obsidian_execute_command\" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.",
"remediation": "Declare accurate annotations, and gate destructive tools on user confirmation regardless.",
"location": {
"kind": "tool",
"name": "obsidian_execute_command"
},
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"obsidian_delete_file\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"obsidian_delete_file\" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.",
"remediation": "Declare accurate annotations, and gate destructive tools on user confirmation regardless.",
"location": {
"kind": "tool",
"name": "obsidian_delete_file"
},
"data": {
"tags": [
"file-write"
]
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "obsidian_status",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_delete_active",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_get_active",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_patch_active",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_post_active",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_put_active",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_get_commands",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_execute_command",
"tags": [
"code-exec"
],
"reasons": {
"code-exec": [
"keyword \"execute command\" in tool name"
]
}
},
{
"tool": "obsidian_open_file",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_delete_periodic",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_get_periodic",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_patch_periodic",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_post_periodic",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_put_periodic",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_search_dataview",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_search_json_logic",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_simple_search",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_list_vault_root",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_list_vault_directory",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_delete_file",
"tags": [
"file-write"
],
"reasons": {
"file-write": [
"keyword \"delete_file\" in tool name"
]
}
},
{
"tool": "obsidian_get_file",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_patch_file",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_post_file",
"tags": [],
"reasons": {}
},
{
"tool": "obsidian_put_file",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "20288d7a7d515f53a4b717335b7d74f30ac96c0cc48cfd9a2b2812d160bcd1f1",
"stats": {
"tools": 24,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 2,
"medium": 1,
"low": 2,
"info": 0
}
}
}