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Security audit

Memory Distiller

Security checks for vulnerabilities and agentic risk

Overview

The skill is a disclosed local memory-log compression guide with some under-specified safeguards, but no artifact-backed malicious behavior.

Install only if you want a Chinese-language workflow for maintaining agent memory files. Before use, inspect the actual Node script, run it only on intended log files, review the compressed output before appending it to MEMORY.md, and use callback_url only with a trusted endpoint.

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (3)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The documented callback_url parameter enables sending processing completion notifications to an external URL, but the skill provides no privacy, egress, or trust-boundary warning. In practice, users may supply sensitive logs or metadata and unknowingly allow outbound delivery to third-party endpoints, creating data exfiltration and SSRF-style risk in platforms that honor callbacks.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The skill instructs the agent/user to run file-modifying shell commands such as appending to MEMORY.md and moving logs into memory/archive/ without any warning, confirmation step, backup guidance, or discussion of overwrite/duplication risks. In an agent setting, these commands can silently mutate persistent memory state, create duplicate entries, or relocate source logs in ways that impair auditability and recovery if executed automatically or on the wrong files.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
83% confidence
Finding

The skill instructions and user-facing documentation are fully in Chinese, but the file does not state that the skill is China-specific or offer an alternative language. This can amount to a language policy issue when users are not given a choice or opt-in regarding locale.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.