---
id: "lib-2026-11-01-isucon-2026-dropping-my-tooling-for-coding-agents"
type: "library"
title: "ISUCON 2026: dropping my tooling for coding agents"
title_original: "ISUCON2026 にツールを捨てて勝ちたかった"
lang: "JA"
org: "Zenn (mazrean)"
source_type: "Practitioner post"
date: "2026-11-01"
week: "2026-W44"
url: "https://nosov.ai/library/lib-2026-11-01-isucon-2026-dropping-my-tooling-for-coding-agents/"
original_url: "https://zenn.dev/mazrean/articles/5c968503fd69a3"
tags: ["ai technology", "future of work"]
---

# ISUCON 2026: dropping my tooling for coding agents

Original title: ISUCON2026 にツールを捨てて勝ちたかった

## English summary

Rehearsal: Claude Code alone took ISUCON14 to about 800k in about 3h until the benchmarker was the bottleneck (2.9m after hardware upgrade). Real contest 198,146 (about 40-50th of about 600); the 2026 problem was designed so operator judgement still separated teams. Pair with ojey writeup and known tak848/kauche posts as the ISUCON-2026 agent cluster.

Original: https://zenn.dev/mazrean/articles/5c968503fd69a3