{"slug": "looking-for-testers-and-feedback-on-stepfork-behavioral-regression-testing-for", "title": "Looking for testers and feedback on StepFork: Behavioral regression testing for AI agents", "summary": "Developer Utsab is seeking testers and feedback for StepFork, an open-source, local-first tool for behavioral regression testing of AI agents, hosted at github.com/utsab345/stepfork. StepFork captures agent execution traces in .sftrace files, then replays and evaluates them to identify behavioral regressions when an agent or its underlying models change, aiming to turn agent failures into reproducible tests. The developer is asking users working on LLM applications, AI agents, RAG systems and agentic workflows to report on installation, CLI usability, real-world usefulness, bugs and feature direction via GitHub issues.", "body_md": "Hey everyone!\n\nI’ve been building **[StepFork](https://github.com/utsab345/stepfork)**, an open-source, local-first tool for behavioral regression testing of AI agents.\n\nThe idea is simple: **when your agent fails, turn that failure into a reproducible test.**\n\nStepFork captures agent execution traces in `.sftrace` files, lets you replay and evaluate them, and helps identify behavioral regressions as you change your agent or its underlying models.\n\nI’m looking for people working on LLM applications, AI agents, RAG systems, or agentic workflows to try it out and share honest feedback.\n\nI’d especially appreciate feedback on:\n\n**Getting started:** Is the installation and workflow straightforward?\n\n**Usability:** Does the CLI feel intuitive? What’s confusing or missing?\n\n**Real-world usefulness:** Would this help you catch regressions in your own agents?\n\n**Bugs and edge cases:** What breaks when you try it with your own workflows?\n\n**Feature direction:** What would make you actually use a tool like this?\n\nYou don’t need to contribute code. Even a quick review, a small experiment, or a GitHub issue describing your experience would be incredibly helpful.\n\nI’m building this in the open and would rather get honest criticism now than build features nobody needs.\n\nIf you’re interested, give it a try and let me know what you think!\n\nThanks for your time and feedback.\n\n#AI #LLM #Agents #OpenSource #MachineLearning", "url": "https://wpnews.pro/news/looking-for-testers-and-feedback-on-stepfork-behavioral-regression-testing-for", "canonical_source": "https://discuss.huggingface.co/t/looking-for-testers-and-feedback-on-stepfork-behavioral-regression-testing-for-ai-agents/190907#post_1", "published_at": "2026-10-22 12:53:38+00:00", "updated_at": "2026-10-22 13:12:02.305968+00:00", "lang": "en", "topics": ["ai-agents", "ai-tools", "developer-tools", "large-language-models", "ai-safety"], "entities": ["StepFork", "Utsab", "GitHub"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/looking-for-testers-and-feedback-on-stepfork-behavioral-regression-testing-for", "markdown": "https://wpnews.pro/news/looking-for-testers-and-feedback-on-stepfork-behavioral-regression-testing-for.md", "text": "https://wpnews.pro/news/looking-for-testers-and-feedback-on-stepfork-behavioral-regression-testing-for.txt", "jsonld": "https://wpnews.pro/news/looking-for-testers-and-feedback-on-stepfork-behavioral-regression-testing-for.jsonld"}}