ToolFuzz is an open-source framework designed to automatically generate diverse fuzzing scenarios that probe the tool-calling logic of AI agents. By injecting malformed inputs and varying tool invocation sequences, it identifies edge cases and failure modes. Developers can customize fuzzing strategies, track coverage metrics, and visualize results in real time, enabling efficient debugging and reliability improvement of agent-driven applications.
ToolFuzz is an open-source framework designed to automatically generate diverse fuzzing scenarios that probe the tool-calling logic of AI agents. By injecting malformed inputs and varying tool invocation sequences, it identifies edge cases and failure modes. Developers can customize fuzzing strategies, track coverage metrics, and visualize results in real time, enabling efficient debugging and reliability improvement of agent-driven applications.
ToolFuzz provides a comprehensive fuzz testing framework specifically tailored for tool-using AI agents. It systematically generates randomized tool invocation sequences, malformed API inputs, and unexpected parameter combinations to stress-test the agent’s tool-calling modules. Users can define custom fuzz strategies using a modular plugin interface, integrate third-party tools or APIs, and adjust mutation rules to target specific failure modes. The framework collects execution traces, measures code coverage for each component, and highlights unhandled exceptions or logic flaws. With built-in result aggregation and reporting, ToolFuzz accelerates the identification of edge cases, regression issues, and security vulnerabilities, ultimately strengthening the robustness and reliability of AI-driven workflows.
Who will use ToolFuzz?
AI researchers
LLM developers
QA engineers
AI safety auditors
Tool integration specialists
How to use the ToolFuzz?
Step1: Install ToolFuzz via pip.
Step2: Configure your AI agent environment and define tool interfaces.
Step3: Create a fuzzing profile specifying mutation rules and target tool modules.
Step4: Run the ToolFuzz test suite to generate and execute fuzz cases.
Step5: Review coverage reports and error logs.
Step6: Refine fuzz strategies and rerun tests to validate fixes.
Platform
mac
windows
linux
ToolFuzz's Core Features & Benefits
The Core Features
Automated fuzz case generation
Malformed input injection
Tool invocation sequence exploration
Customizable fuzz strategies
Coverage tracking and metrics
Real-time result visualization
Modular plugin interface
The Benefits
Detects edge cases and failure modes early
Enhances tool-calling reliability
Accelerates debugging and QA
Improves AI agent robustness
Customizable to diverse tool APIs
Open-source and extensible
ToolFuzz's Main Use Cases & Applications
Testing LLM-based agents with external tool plugins