Security audit

Api限制管理Agent Rate Limiter 1.3.1

Security checks for vulnerabilities and agentic risk

Overview

This skill is a local rate-limit tracker that behaves consistently with its stated purpose, with only limited local-state handling risks to consider.

Reasonable to install for local rate-limit tracking. Use a private state-file path, avoid shared or world-writable directories for RATE_LIMIT_STATE, and understand that reset deletes prior rate-limit history. Review any cron or prompt integration before enabling it so throttling decisions remain under your control.

A.I.G

Vulnerability Patterns

Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
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

Findings (1)

T09 · Insecure Skill Coding Practices

Warning

Location: scripts/rate-limiter.py:200
Finding: Predictable Temporary and Lock Files Permit Symbolic-Link File Clobbering
Content: View full analysis
Remediation: View remediation

SkillSpector

Vulnerability Patterns

MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code

Findings (2)

Undeclared Tool Scope

Medium

Category: MCP Least Privilege
Confidence: 88% confidence
Finding: The skill instructs the agent to run a local Python script, read environment variables, write a JSON state file, and references external URLs, but it does not declare any explicit tool scope or permissions. Missing scope metadata weakens least-privilege controls and can cause an agent platform to grant broader file, env, or network access than operators expect.
Content: No source excerpt is available for this finding.

Missing User Warnings

Low

Category: Not specified by scanner
Confidence: 78% confidence
Finding: This markdown file describes a reset command that 'clears all history and starts fresh' but does not present it as a caution or warning despite affecting persistent user data in the JSON state file. For markdown files, omissions around behaviors that affect user data should be disclosed clearly.
Content: No source excerpt is available for this finding.

Static analysis

Detected: suspicious.prompt_injection_instructions

Prompt-injection style instruction pattern detected.

Warn

Code: suspicious.prompt_injection_instructions
Location: SKILL.md:147