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Security audit

axiom-phone-e164

Security checks for vulnerabilities and agentic risk

Overview

This skill is a local phone-number normalizer with no evidence of network access, persistence, credential handling, or hidden agent behavior.

Reasonable to install for local phone-number normalization. Review the default country behavior before relying on it in production, because the documentation and code disagree in places.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (3)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The file’s user-facing description and instructions are presented only in Chinese, which effectively forces a specific language for users of the skill. The policy allows locale constraints only when there is explicit opt-in or a clearly justified region-specific purpose, neither of which is stated here.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

This Python file contains user-facing natural-language documentation in French ('LIMITATIONS CONNUES', 'Pas de validation en temps réel') while the rest of the interface and code are not explicitly scoped to French-only users. Under the policy rule, forcing a specific language without user opt-in is a natural-language policy violation.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
96% confidence
Finding

The skill description and usage guidance are presented almost entirely in French, which can impose a language preference on users without opt-in. The policy allows locale constraints only when they are explicitly justified or when the user is given a language choice, neither of which appears here.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.