--- format: "aidr-story-markdown/v1" id: "5ee9a956438665c1aff3a620d8c7f8d86ffc0ab47ea381ad1289ed88b28ac5d7" canonical_url: "https://aidr.today/5ee9a956?lang=en" title: "I Deleted 168,000 Lines of Comments. My AI Agent Didn't Notice" lang: "en" requested_lang: "en" available_langs: ["en","vi"] translation_fallback: null fallback_fields: [] published_at: "2026-10-14T16:34:53.000Z" category: "Tools" topics: ["agent","devtools"] source_urls: ["https://openstation.blog/2026/10/13/i-deleted-168000-lines-of-comments-my-ai-agent-didnt-notice/","https://news.ycombinator.com/item?id=50090484"] summary: "An AI agent was tested on a codebase with 168,000 lines of comments removed, performing the same tasks as on the original version with equivalent results across lint, type checks, and tests. The experiment found that comments did not significantly affect the agent's performance, with a separate AI judge scoring results without knowing which version was used." --- # I Deleted 168,000 Lines of Comments\. My AI Agent Didn't Notice > [Open the canonical story]() **Published:** 2026-10-14T16:34:53.000Z **Category:** Tools **Topics:** agent, devtools ## Summary An AI agent was tested on a codebase with 168,000 lines of comments removed, performing the same tasks as on the original version with equivalent results across lint, type checks, and tests\. The experiment found that comments did not significantly affect the agent's performance, with a separate AI judge scoring results without knowing which version was used\. ## Sources - [Story source]() - [Discussion]()