Agent Memory — 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": "@xultrax-web/agent-memory-mcp",
"source": {
"kind": "package",
"origin": "@xultrax-web/agent-memory-mcp"
},
"server": {
"name": "@xultrax-web/agent-memory-mcp"
}
},
"grade": "C",
"score": {
"score": 77,
"threatScore": 84,
"grade": "C",
"band": "C",
"categorySubtotals": {
"injection": 16,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "threat",
"ruleId": "MTC-INJ-CMD-1",
"category": "injection",
"severity": "high",
"confidence": "strong",
"rawWeight": 22,
"confidenceMult": 0.7,
"diminishingFactor": 1,
"appliedPenalty": 15.4
},
{
"kind": "threat",
"ruleId": "MTC-INJ-CMD-1",
"category": "injection",
"severity": "low",
"confidence": "heuristic",
"rawWeight": 3,
"confidenceMult": 0.4,
"diminishingFactor": 0.5,
"appliedPenalty": 0.6
},
{
"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": [
"ingests untrusted external content (a prompt-injection entry point)",
"can send data / act on an external service",
"can execute shell commands or code"
],
"tags": [
"untrusted-input",
"external-sink",
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (36 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-INJ-CMD-1",
"title": "Shell command embedded in tool metadata",
"category": "injection",
"severity": "high",
"confidence": "strong",
"description": "Shell command embedded in tool metadata detected in the description of tool \"init\". Instruction-like content in tool metadata is executed by the model, not the human, and is the primary tool-poisoning vector.",
"remediation": "Tool descriptions should describe behavior, not instruct the assistant. Treat imperative / secrecy / sequencing language in metadata as hostile.",
"location": {
"kind": "tool",
"name": "init",
"field": "description"
},
"evidence": "rm -rf",
"owasp": "LLM01:2025 Prompt Injection",
"data": {
"kind": "command-in-prose"
}
},
{
"ruleId": "MTC-CAP-001",
"title": "Tool \"no-curl-pipe-shell\" exposes command/code execution",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "Tool \"no-curl-pipe-shell\" appears to run shell commands or evaluate code (keyword \"shell\" 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": "no-curl-pipe-shell"
},
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"tags": [
"external-sink",
"code-exec"
]
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/index.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/index.js:29`): 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/index.js"
},
"evidence": "spawnSync } from \"node:child_process\"; import { createHash, createHmac, createPrivateKey, createPublicKey, generateKeyP",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/index.js",
"line": 29,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (dist/tui.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`dist/tui.js:26`): 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/tui.js"
},
"evidence": "spawnSync } from \"node:child_process\"; import { useEffect, useMemo, useState } from \"react\"; import Fuse from \"fuse.js\"",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "dist/tui.js",
"line": 26,
"nonRuntime": false
}
},
{
"ruleId": "MTC-FLOW-005",
"title": "Untrusted input can drive an external action",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "Untrusted-input tools ([get_memory]) co-exist with external-action tools ([no-curl-pipe-shell]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.",
"remediation": "Require confirmation for state-changing/egress actions triggered after processing untrusted content.",
"location": {
"kind": "flow",
"name": "get_memory → no-curl-pipe-shell"
},
"evidence": "untrusted [get_memory] → sinks [no-curl-pipe-shell]",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"get_memory"
],
"sinks": [
"no-curl-pipe-shell"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"no-curl-pipe-shell\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"no-curl-pipe-shell\" 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": "no-curl-pipe-shell"
},
"data": {
"tags": [
"external-sink",
"code-exec"
]
}
},
{
"ruleId": "MTC-INJ-CMD-1",
"title": "Shell command embedded in tool metadata",
"category": "injection",
"severity": "low",
"confidence": "heuristic",
"description": "Shell command embedded in tool metadata detected in the description of tool \"no-rm-rf\". Instruction-like content in tool metadata is executed by the model, not the human, and is the primary tool-poisoning vector.",
"remediation": "Tool descriptions should describe behavior, not instruct the assistant. Treat imperative / secrecy / sequencing language in metadata as hostile.",
"location": {
"kind": "tool",
"name": "no-rm-rf",
"field": "description"
},
"evidence": "rm -rf",
"owasp": "LLM01:2025 Prompt Injection",
"data": {
"kind": "command-in-prose"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"get_memory"
],
"sensitiveSource": [],
"externalSink": [
"no-curl-pipe-shell"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "Memory index",
"tags": [],
"reasons": {}
},
{
"tool": "extract_memories",
"tags": [],
"reasons": {}
},
{
"tool": "summarize_topic",
"tags": [],
"reasons": {}
},
{
"tool": "topic",
"tags": [],
"reasons": {}
},
{
"tool": "prepare_handoff",
"tags": [],
"reasons": {}
},
{
"tool": "project",
"tags": [],
"reasons": {}
},
{
"tool": "audit_stale",
"tags": [],
"reasons": {}
},
{
"tool": "save_memory",
"tags": [],
"reasons": {}
},
{
"tool": "search_memories",
"tags": [],
"reasons": {}
},
{
"tool": "relevant_memories",
"tags": [],
"reasons": {}
},
{
"tool": "get_memory",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "list_memories",
"tags": [],
"reasons": {}
},
{
"tool": "delete_memory",
"tags": [],
"reasons": {}
},
{
"tool": "restore_memory",
"tags": [],
"reasons": {}
},
{
"tool": "doctor",
"tags": [],
"reasons": {}
},
{
"tool": "stats",
"tags": [],
"reasons": {}
},
{
"tool": "rotate_key",
"tags": [],
"reasons": {}
},
{
"tool": "init",
"tags": [],
"reasons": {}
},
{
"tool": "validate_receipt",
"tags": [],
"reasons": {}
},
{
"tool": "log_events",
"tags": [],
"reasons": {}
},
{
"tool": "verify_memory",
"tags": [],
"reasons": {}
},
{
"tool": "find_backlinks",
"tags": [],
"reasons": {}
},
{
"tool": "find_related",
"tags": [],
"reasons": {}
},
{
"tool": "sync_status",
"tags": [],
"reasons": {}
},
{
"tool": "sync_push",
"tags": [],
"reasons": {}
},
{
"tool": "sync_pull",
"tags": [],
"reasons": {}
},
{
"tool": "save_rule",
"tags": [],
"reasons": {}
},
{
"tool": "list_rules",
"tags": [],
"reasons": {}
},
{
"tool": "audit",
"tags": [],
"reasons": {}
},
{
"tool": "check_action",
"tags": [],
"reasons": {}
},
{
"tool": "emit_companions",
"tags": [],
"reasons": {}
},
{
"tool": "protect-main-branch",
"tags": [],
"reasons": {}
},
{
"tool": "no-rm-rf",
"tags": [],
"reasons": {}
},
{
"tool": "no-prod-data-destruction",
"tags": [],
"reasons": {}
},
{
"tool": "no-curl-pipe-shell",
"tags": [
"external-sink",
"code-exec"
],
"reasons": {
"external-sink": [
"keyword \"curl\""
],
"code-exec": [
"keyword \"shell\" in tool name"
]
}
},
{
"tool": "no-secrets-in-commits",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "6507a7fa7d8269859a1f39fec643b62c8da9d8a97d696f29a324f470526732fe",
"stats": {
"tools": 36,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 4,
"medium": 1,
"low": 2,
"info": 0
}
}
}