Security audit

装前先给一枚skill体检·逐条挂原文

Security checks for vulnerabilities and agentic risk

Overview

This skill drafts source-linked review reports with proportionate file access and leaves installation decisions to the user.

Treat the output as a draft requiring source verification, not a security guarantee. Prefer installing a reviewed fixed copy over the unpinned command, choose a report path that will not overwrite something important, and review the separate parser's data handling and costs before enabling remote retrieval.

A.I.G

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

SkillSpector

Vulnerability Patterns

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

Findings (5)

Incomplete referenced artifact analysis

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 75)May include surrounding context.
md
bash scripts/fixtures/run_fixtures.sh # 离线三档一次跑完，末行自报档数与不合枚数

MCP server referenced without pinned version: 'npx skills'.

Medium

Category: MCP Rug Pull
Confidence: 94% confidence
Finding: The installation command invokes npx skills without a version pin, allowing execution of a mutable npm CLI release with the user's privileges; the referenced skill repository is also not pinned to an immutable revision. Although the detector incorrectly describes this CLI as an MCP server, the underlying supply-chain exposure is real: a compromised upstream release could execute malicious code during installation, and the skill's read-only review boundaries would not protect that installation step.
Content: No source excerpt is available for this finding.

MCP server referenced without pinned version: 'npx skills'.

Medium

Category: MCP Rug Pull
Confidence: 94% confidence
Finding: The recommended installation command uses npx skills without pinning the npm package version, allowing it to download and execute a changing CLI with the user's privileges. A compromised package release could execute malicious code, and the skill source huhoo/cue-awesome is also not tied to an immutable revision. Although the finding incorrectly describes this CLI as an MCP server, the supply-chain exposure is real; the documented read-only review workflow does not protect the installation step.
Content: No source excerpt is available for this finding.

Skill declares no tool scope ('permissions' or 'allowed-tools') but code capabilities were detected: file_read, file_write.

Medium

Category: MCP Least Privilege
Confidence: 70% confidence
Finding: Without declared permissions the skill's intent is opaque and cannot be validated.
Content: No source excerpt is available for this finding.

MCP server referenced without pinned version: 'npx skills'.

Medium

Category: MCP Rug Pull
Confidence: 70% confidence
Finding: npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.