---
title: "Sagnik Dey (@sagnikkk1) | Hashnode"
description: "Working on Agentic AI evaluation and harnesses. Read the latest articles by Sagnik Dey on Hashnode."
url: "https://hashnode.com/@sagnikkk1"
---

@sagnikkk1

# Sagnik Dey

@sagnikkk1 · Hyderabad, India · Joined September 2026

Working on Agentic AI evaluation and harnesses

### [What a frontier coding agent actually does when the tests are wrong](https://stop-gate.hashnode.dev/what-a-frontier-coding-agent-actually-does-when-the-tests-are-wrong?utm_source=hashnode&utm_medium=feed)

304 runs of Claude Opus 5 against Impossible-LiveCodeBench, watched from outside the session.

12 min read · [stop-gate.hashnode.dev](https://stop-gate.hashnode.dev/what-a-frontier-coding-agent-actually-does-when-the-tests-are-wrong?utm_source=hashnode&utm_medium=feed)

[3](https://hashnode.com/posts/what-a-frontier-coding-agent-actually-does-when-the-tests-are-wrong/6aa2aa9bceb6b747dbb1044c) [Sep 10](https://hashnode.com/posts/what-a-frontier-coding-agent-actually-does-when-the-tests-are-wrong/6aa2aa9bceb6b747dbb1044c)