Amplemarket

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

Overview

Amplemarket actions have clear safeguards, but the CLI dependency can persistently change other agent skills without that effect being explained.

Review the CLI installation separately before use, preferably using a verified release. Set OO_SKILLS_SYNC_DISABLED=1 before invoking oo if you do not want automatic changes to other agent skills. Amplemarket requests pass through OOMOL, and state changes require your confirmation. The remote installer and hosted implementation were not verified.

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 performs remote script execution rather than any shown Amplemarket data operation. Although installing a dependency can be a supporting implementation detail, this chunk establishes no relationship between the Oomol installer and the declared purpose. The downloaded script's subsequent behavior cannot be determined from the supplied code.

Content

No source excerpt is available for this finding.

External Script Fetching

High

• Category: Supply Chain
• Confidence: 98% confidence

Finding

The fallback setup pipes a mutable remote script directly into Bash without version pinning or integrity verification; the PowerShell alternative has the same issue. Compromise of the distribution endpoint or its publishing pipeline could execute arbitrary code with the agent's local privileges, exposing accessible files and credentials. Restricting setup to a missing CLI reduces exposure, but does not make fetched code trustworthy; the stated oo-only tool allowance may block these commands if strictly enforced.

Content

Scanner excerpt · SKILL.md (reported line 65)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 86)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