Security audit
agent-card-health-check
Security checks for vulnerabilities and agentic risk
Overview
This skill is a small, disclosed MCP connector for checking an authorized Agent Card and does not include local code, persistence, or hidden behavior.
Install only if you are comfortable sending the Agent Card and authorized target URL to the disclosed third-party MCP service. Use it only against systems you own or are explicitly allowed to test, and treat its output as a connectivity/readiness check rather than a full security assessment.
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
Static analysis
No suspicious patterns detected.