App Store Server API

• Outcome: Review
• Latest audit: Nov 3, 2026 · 12:06 PM UTC
• Version: 1.0.5

Overview

The App Store operations have clear approval controls, but setup runs unverified downloaded code and can introduce broader changes to agent skills.

Review and install a verified CLI release yourself, and disable automatic bundled-skill synchronization before use. OOMOL intermediates access to your connected Apple account and transaction data. Approve each account change carefully, especially irreversible subscription extensions. The installer and hosted connector implementations were not verified; no malicious behavior was established.

A.I.G

Vulnerability Patterns

• Skill Instruction Hijacking: Alters the agent's session goals or safety constraints when the skill loads
• Agent Memory Poisoning: Writes attacker-controlled rules into memory that affect later sessions
• Remote Payload Retrieval and Execution: Fetches external code whose behavior can change after review
• Embedded Malicious Code: Ships malicious scripts inside the skill and executes them locally
• Unauthorized Access and Privilege Escalation: Obtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns

• Supply Chain: Unpinned Dependencies, External Script Fetching, Obfuscated Code
• Excessive Agency: Unrestricted Tool Access, Autonomous Decision Making, Scope Creep
• MCP Tool Poisoning: Hidden Instructions, Unicode Deception, Parameter Description Injection
• Prompt Injection: Instruction Override, Hidden Instructions, Exfiltration Commands
• Data Exfiltration: External Transmission, Env Variable Harvesting, File System Enumeration

Findings (3)

Description-Behavior Mismatch

High

• Category: MCP Tool Poisoning
• Confidence: 99% confidence

Finding

The supplied command runs an installer from cli.oomol.com, with no visible App Store Server API interaction or demonstrated connection to that purpose. This is an undeclared installation capability involving an inconsistent resource, not an established supporting implementation detail. The remote script's contents and further effects cannot be determined from this chunk.

Content

No source excerpt is available for this finding.

External Script Fetching

High

• Category: Supply Chain
• Confidence: 97% confidence

Finding

The setup procedure pipes a remotely fetched, mutable script directly into Bash without a documented integrity check or installation-specific user approval; the PowerShell alternative has the same issue. Although conditional installation from the CLI vendor is relevant to this skill, a compromised distribution endpoint or malicious installer update could execute arbitrary code with the agent process's permissions and access local credentials or files.

Content

Scanner excerpt · SKILL.md (reported line 84)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

Autonomous Decision Making

Medium

• Category: Excessive Agency
• Confidence: 80% confidence

Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 105)May include surrounding context.

md

- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources