Back to skill

Security audit

Amara

Security checks for vulnerabilities and agentic risk

Overview

The Amara actions have clear approval checks, but the CLI dependency can also change other agents’ installed skills without this skill explaining that impact.

Review the CLI's wider installation effects before enabling this skill. Prefer a reviewed, preinstalled CLI and disable startup skill synchronization with OO_SKILLS_SYNC_DISABLED=1 if you only want Amara access. Check the connected account's permissions and retain the required approvals for changes. The remote installer and hosted connector remain outside the verified artifact; no malicious behavior was established.

Vulnerability Patterns
  • 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
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (3)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

The supplied command installs software from an unrelated service and shows no Amara functionality or established dependency relationship. Although installation can be a supporting implementation detail, nothing supplied connects this installer to the declared Amara operations. The downloaded 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
98% confidence
Finding

The fallback installation command downloads a mutable remote script and immediately executes it without pinning a version or verifying its integrity; the PowerShell alternative has the same weakness. If the distribution endpoint or release infrastructure is compromised, the installer can execute arbitrary commands with the agent process's permissions, potentially accessing local files and credentials. Restricting installation to a missing-CLI error reduces exposure but does not eliminate this supply-chain risk.

Content

Scanner excerpt · SKILL.md (reported line 87)May include surrounding context.

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 108)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