# AIVSS01 - Agentic AI Tool Misuse

> Agent misuses, is tricked into misusing, or is exposed to compromised external tools/APIs.

- **Category**: Owasp AIvss
- **Subcategory**: core_security_risks
- **Canonical URL**: https://designpattern.fyi/patterns/aivss01_tool_misuse/

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## Description
'**Intent**: Prevent agents from being manipulated into abusing their legitimate tool access for malicious purposes.

**Context**: Agents with tool access can be manipulated to use those tools for data exfiltration, unauthorized modifications, or other harmful actions while appearing to operate normally. This is ranked as the #1 highest-severity risk in the OWASP Agentic AI Core Security Risks.

**Solution**: Implement strict tool usage policies. Validate tool call parameters. Apply rate limiting on tool invocations. Monitor tool usage patterns. Use allowlists for tool operations. Require confirmation for destructive actions. Vet all external tools and APIs before integration.'



## Use Cases
Use when agents have access to file systems, APIs, databases, or any tools that can affect real-world systems.





## Trade-offs


### Advantages

- Prevents data exfiltration via tools

- Limits tool abuse surface

- Enables usage auditing

- Supports safe tool integration




### Considerations & Drawbacks

- Restrictive policies may limit functionality

- Parameter validation complexity

- Legitimate edge cases may be blocked







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**Reference**: [Original Source](https://aivss.owasp.org/)