Files.com

• Outcome: Review
• Latest audit: Nov 3, 2026 · 11:24 AM UTC
• Version: 1.0.5

Overview

The Files.com actions have clear approval safeguards, but setup executes unverified remote code and the CLI can also change other agents’ installed skills.

Review installation before enabling this skill. Install a specific reviewed CLI version separately and decide whether it may manage skills across your other agents; the publisher documents OO_SKILLS_SYNC_DISABLED=1 to disable startup synchronization. Connect a restricted Files.com API key and approve exact write/delete targets. The remote installer and hosted connector 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: 96% confidence

Finding

The supplied command executes an installer hosted outside Files.com rather than performing Files.com operations. Nothing in the supplied chunk establishes this installation as a supporting dependency for the declared purpose. The downloaded script's contents are unavailable, so its further behavior cannot be assessed.

Content

No source excerpt is available for this finding.

External Script Fetching

High

• Category: Supply Chain
• Confidence: 98% confidence

Finding

The setup command streams a mutable remote script directly into Bash without a pinned version or independent integrity verification; the PowerShell alternative has the same issue. Compromise of the installer distribution could execute arbitrary code with the invoking account's permissions, exposing accessible files and credentials. The missing-CLI condition limits exposure, but the Files.com dependency does not make this execution mechanism safe.

Content

Scanner excerpt · SKILL.md (reported line 60)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 81)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