Security audit

Wireframe

Security checks for vulnerabilities and agentic risk

Overview

The skill coherently describes a CellCog-backed UI prototyping workflow, with notable but user-manageable exposure from external hosting and unpinned install guidance.

Install only from the publisher/source you trust, prefer a pinned or reviewed CellCog version where possible, use a narrowly scoped API key, and avoid putting secrets, customer data, unreleased product details, or regulated information into prompts or hosted prototypes unless CellCog's access and retention terms meet your needs.

A.I.G

Vulnerability Patterns

Insecure DependenciesIntroduces malicious components through unsafe dependency sources
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)

T08 · Insecure Dependencies

Warning

Location: SKILL.md:272
Finding: Unpinned Third-Party Dependencies Create Supply-Chain Exposure
Content: View full analysis
Remediation: View remediation

SkillSpector

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 (2)

Missing User Warnings

Medium

Category: Not specified by scanner
Confidence: 91% confidence
Finding: The skill promotes generation of interactive HTML prototypes hosted on live URLs, but it does not clearly warn users that prompt contents, embedded data, mock customer information, or internal product details may be transmitted to and exposed through externally hosted artifacts. This can lead to unintended disclosure of sensitive or proprietary information, especially because users are encouraged to include realistic content and share links with stakeholders.
Content: No source excerpt is available for this finding.

Rp1

Medium

Category: MCP Rug Pull
Confidence: 95% confidence
Finding: The skill instructs users to run npx skills add cellcog/skills --skill cellcog without pinning a specific package/version. This creates a supply-chain risk because npx resolves and executes code from the registry at install time, so a compromised, typo-squatted, or unexpectedly changed package could execute arbitrary code on the user's machine. In this skill context, the danger is somewhat elevated because the instructions are framed as setup guidance users may copy-paste directly.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.