Security audit
agentkyb-vendor-check
Security checks for vulnerabilities and agentic risk
Overview
This skill is a disclosed vendor-check/payment-safety helper that uses an optional paid remote service with explicit spend controls and private-key warnings.
Install only if you want agents to use AgentKYB for vendor preflight checks. Configure any signer and spend limits independently, verify the expected recipient, Base network, endpoint, and 0.05 USDC price before each payment, and do not provide wallet private keys to the skill or service.
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