What is ArkSim?
ArkSim is an open-source agent testing tool designed to help developers validate, simulate, and harden their agent systems. It focuses on reproducible interaction simulations to identify reliability and idempotency gaps before production deployment.
Who is it for?
Developers looking to ensure their agents are robust, reliable, and ready for real-world interactions, without relying on manual testing.What makes it different?
Open-source
Fully transparent and customizable, letting you extend or adapt the tool as needed.
End-to-end testing
Test your agent in realistic scenarios to uncover gaps in behavior or reliability before production.
Pre-built scenarios
Use predefined scenarios to quickly validate your agent and jump-start testing effectively.
Easily extensible
Integrate with existing systems and tailor the testing environment to your specific needs.
Core Capabilities
Scenarios
A scenario is a test case that defines a simulated user’s attributes, goals, and prior knowledge. It allows you to test different versions of your agent against the same set of scenarios to compare behavior and catch regressions.Simulation
Simulation turns scenarios into live, multi-turn conversations with your agent. You get full transcripts (and optional metadata) that you can critically inspect or pass to evaluation.Evaluation
Evaluation scores your agent on those conversations. You get quantitative and qualitative metrics (e.g. helpfulness, faithfulness) and agent behavior failures that you can prioritize and fix.Ready to start?
Test your AI agent with ArkSim. Follow the quick start or explore the source on GitHub.Quick Start
Set up your first simulation in minutes.
Source Code
Explore full implementation on GitHub.