InfernoSIM: Open-source failure simulator for AI agents
pranaysparihar · reddit · 2026-08-24
The author has released InfernoSIM v4.0, a local reliability-testing tool for tool-using agents. It allows users to record and replay model and tool traffic, inject failures, and verify the agent's actual behavior rather than just its claims. The tool supports testing complex scenarios like lost tool responses, malformed arguments, and unsafe retries, and is compatible with OpenAI, Anthropic, Ollama, and MCP protocols, producing CI-ready reports. The author is seeking engineers to test it against real-world frameworks, especially those involving parallel tool calls or custom MCP servers.
Related event: InfernoSIM: Open Source AI Agent Failure Simulator(2 posts)→
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