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Security audit

Token Metrics

Security checks for vulnerabilities and agentic risk

Overview

The market-data features fit the stated purpose, but setup can execute changing remote code and introduce additional agent skills without clearly explaining those effects.

Review the CLI setup before enabling this skill. Prefer a verified CLI release and explicitly decide whether to allow additional agent skills. Upstream documents OO_SKILLS_SYNC_DISABLED=1 to disable startup synchronization in its [environment settings](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md#environment-variables). OOMOL handles the connected service credentials and may charge for requests. The complete bundled artifact was inspected; remote installer contents, the deployed CLI version, and server-side connector behavior remain unverified.

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
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied command installs software by executing externally hosted shell code; it does not search or read Token Metrics data. Nothing in the supplied content establishes this installer as a supporting dependency for the declared purpose. The remote script's contents and any further effects are unknown.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
90% confidence
Finding

The supplied chunk contains only a login command, with no Token Metrics reference or data-access operation. Authentication could support a data skill, but the provided code does not establish that connection and implements a materially different primary operation.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a mutable remote installer directly into bash executes its contents without inspection or verification against a trusted release. HTTPS reduces transport interception risk but does not protect against a compromised distribution server or malicious installer update; this is the same underlying installation risk identified by SQP-2.

Content

Scanner excerpt · SKILL.md (reported line 60)May include surrounding context.

The setup workflow executes downloaded installation scripts without warning about the system-integrity implications.

Medium
Category
Output Handling
Confidence
96% confidence
Finding

The setup instructions direct execution of remotely downloaded shell and PowerShell scripts without review, integrity verification, or explicit approval for installing executable software. Although installation is a legitimate dependency and only triggered when the CLI is missing, compromised installer delivery could execute arbitrary code with the agent's local permissions.

Content

No source excerpt is available for this finding.

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