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Security audit

Crypto Market Data

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed, read-only cryptocurrency market data client, with a routing-description issue but no evidence of hidden, persistent, destructive, or exfiltrative behavior.

Install only if you are comfortable providing an AISA_API_KEY and sending requested crypto identifiers, contract addresses, exchange IDs, and market-data queries to AIsa. Do not rely on this skill for stocks, dividends, or traditional finance despite the overly broad manifest phrase.

A.I.G

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

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (3)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
95% confidence
Finding

The skill requires environment access to read AISA_API_KEY and performs network operations to external AIsa/CoinGecko endpoints, but it does not declare any explicit tool scope such as permissions or allowed-tools. In agent runtimes that rely on manifest-declared boundaries, this can lead to overbroad execution privileges or make the skill's external access invisible to policy enforcement and review.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The manifest description says the skill should be used for 'stock analysis' and 'dividend research' even though the implementation and documentation are crypto-only. This misleading trigger scope can cause an agent to invoke the wrong skill for finance tasks, producing incorrect or unsafe outputs in contexts where users expect equities data rather than cryptocurrency market data.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · scripts/coingecko_client.py (reported line 55)May include surrounding context.

python
class CoinGeckoClient:
    """AIsa CoinGecko - Unified Cryptocurrency Data API Client."""

    BASE_URL = "https://api.aisa.one/apis/v1"

    def __init__(self, api_key: Optional[str] = None):
        self.api_key = api_key or os.environ.get("AISA_API_KEY")