Show HN: Spec27 – Spec-driven validation for AI agents

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Hi HN! We’re a team of ML validation specialists and we’ve been building &#x2F;Spec27, a tool for testing whether AI agents still do their job safely and reliably as models, prompts, tools, and surrounding systems change.<p>We started working on this because a lot of current LLM evaluation work seems aimed at scoring general model behavior, while many teams are deploying systems that have a specific mission to fulfill. Many of the tools also assume you have full access to the agent stack and tra