---
title: "Discussion on \"Your AI Returned Perfect JSON. It Still Made the Wrong Decision.\" | Hashnode"
description: "Discussion on \"Your AI Returned Perfect JSON. It Still Made the Wrong Decision.\". Jev, structured outputs, and calibrated decisions: how to evaluate accuracy, uncertainty, and cost before automating AI workflows."
url: "https://hashnode.com/posts/your-ai-returned-perfect-json-it-still-made-the-wrong-decision/6ab7c95a6262b336356381ff"
---

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# [Your AI Returned Perfect JSON. It Still Made the Wrong Decision.](https://manjunadh86.hashnode.dev/your-ai-returned-perfect-json-it-still-made-the-wrong-decision?utm_source=hashnode&utm_medium=feed)

Jev, structured outputs, and calibrated decisions: how to evaluate accuracy, uncertainty, and cost before automating AI workflows.

Sep 26 · 12 min read · manjunadh86.hashnode.dev  
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## Written by

[Manjunadh Padarthi](https://hashnode.com/@manjunadh86)

@manjunadh86 · Bangalore, India

  
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Building with AI & automation | Practical tutorials, developer tools, and lessons from real projects

Tech enthusiast exploring AI, coding, and automation. Sharing what I build and learn along the way.

## Responses 1

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[Rulestack](https://hashnode.com/@rulestack)

[Sep 26](https://hashnode.com/posts/your-ai-returned-perfect-json-it-still-made-the-wrong-decision/6ab7c95a6262b336356381ff/comment/6ab7edd8b7ab61fbba820bf6)

We hit a small version of this recently: a keyword flag for bot accounts marked a human software engineer as a bot because the bio mentioned AI agents, and a full read of the bio overturned it. It left me unsure where the explicit cases in a rules-first setup really end.