Security audit

Gem

Security checks for vulnerabilities and agentic risk

Overview

The skill mostly fits its Gem read-only purpose, but its setup path tells agents to run an unverified remote installer on the user’s machine.

Review before installing. Normal Gem read actions are reasonably scoped, but do not let the agent run the installer commands automatically. Install the oo CLI only from a source you trust, preferably with a pinned version and verified checksum or signature, and confirm any login or connection step yourself.

A.I.G

Vulnerability Patterns

Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
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
Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

Findings (1)

T03 · Remote Payload Retrieval and Execution

Error

Location: SKILL.md:63
Finding: Unverified Remote Installer Downloaded and Executed Directly
Content: View full analysis
Remediation: View remediation

SkillSpector

Vulnerability Patterns

Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access

Findings (2)

External Script Fetching

High

Category: Supply Chain
Confidence: 98% confidence
Finding: The skill instructs the agent to install software using a remote script piped directly into a shell (curl ... | bash), which is a well-known supply-chain and remote code execution risk. If the remote server, transport, or script content is compromised, the agent or user may execute arbitrary code with local privileges.
Content: Scanner excerpt · SKILL.md (reported line 63)May include surrounding context.

oo: command not found — install the oo CLI (other platforms: https://cli.oomol.com/install-guide.md):

bash
curl -fsSL https://cli.oomol.com/install.sh | bash # macOS / Linux

powershell

Vague Triggers

Medium

Category: Not specified by scanner
Confidence: 94% confidence
Finding: The trigger text says to use this skill for "ANY Gem request," which is overly broad and can cause the agent to route all Gem-related tasks through this skill without checking whether the request is appropriate, read-only, or within least-privilege scope. In agent systems, broad invocation rules increase the chance of unintended tool use and make it easier for unsafe instructions in the skill to influence behavior.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.