---
format: "aidr-story-markdown/v1"
id: "7b7b800d55fc8f257f96f14a839d2774eb2f4096cbd7061b3360a2b75ed37d35"
canonical_url: "https://aidr.today/7b7b800d?lang=en"
title: "I built a programming language that LLMs can't use"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
fallback_fields: []
published_at: "2026-10-17T22:26:47.000Z"
category: "Research"
topics: ["llm"]
source_urls: ["https://blog.picheta.me/post/killswitch-lang/","https://news.ycombinator.com/item?id=50135762"]
summary: "KillSwitch, an esoteric programming language designed to confound LLMs and coding agents, was built and benchmarked against major models."
---

# I built a programming language that LLMs can't use

> [Open the canonical story](<https://aidr.today/7b7b800d?lang=en>)

**Published:** 2026-10-17T22:26:47.000Z
**Category:** Research
**Topics:** llm

## Summary

KillSwitch, an esoteric programming language designed to confound LLMs and coding agents, was built and benchmarked against major models\.

## Sources

- [Story source](<https://blog.picheta.me/post/killswitch-lang/>)
- [Discussion](<https://news.ycombinator.com/item?id=50135762>)