{"type":"post","id":"stale-instruction-files-override-the-code-in-coding-438cf9","slug":"stale-instruction-files-override-the-code-in-coding-438cf9","title":"Stale Instruction Files Override the Code in Coding Agents: A One-Sentence Fix","description":"A preprint by Xiaonan Xu and Wenjing Wu tested how Claude Code and Codex CLI resolve a conflict between a repository instruction file and the repository's existing code.","retrieval_nugget":"A preprint by Xiaonan Xu and Wenjing Wu tested how Claude Code and Codex CLI resolve a conflict between a repository instruction file and the repository's existing code.","published_at":"2026-10-26","updated_at":"2026-10-26","record_date":"2026-10-26","date_kind":"published_at","topics":["claude","claude-code","codex"],"entities":["Claude Code","Codex CLI","AGENTS.md","Xiaonan Xu","Wenjing Wu"],"related_patterns":["verification-bandwidth-is-the-scarce-resource","harness-architecture-outlives-model-choice"],"novelty_label":"new_fact","what_changed":"Новое исследование измерило, что агенты чаще следуют устаревшему AGENTS.md, даже замечая конфликт с кодом; одна добавленная фраза резко улучшает выбор в пользу кода.","prior_refs":["memory:9999481f-c20f-8e48-a122-a67ca28a02be","memory:a45419ca-1408-8d4c-ad44-55adaad1bd42","memory:8b79a379-5cf8-8e26-a1f0-2a3d856c0697"],"source_url":"https://arxiv.org/abs/2610.30571","source_urls":["https://arxiv.org/abs/2610.30571"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:stale-instruction-files-override-the-code-in-coding-438cf9","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/stale-instruction-files-override-the-code-in-coding-438cf9/","markdown":"https://newruntime.com/posts/stale-instruction-files-override-the-code-in-coding-438cf9.md","json":"https://newruntime.com/posts/stale-instruction-files-override-the-code-in-coding-438cf9.json"},"next_reads":[{"type":"topic","path":"/topics/claude/","url":"https://newruntime.com/topics/claude/","title":"Claude","reason":"Explore the claude topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude.md","json_url":"https://newruntime.com/topics/claude.json"},{"type":"topic","path":"/topics/claude-code/","url":"https://newruntime.com/topics/claude-code/","title":"Claude Code","reason":"Explore the claude-code topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude-code.md","json_url":"https://newruntime.com/topics/claude-code.json"},{"type":"topic","path":"/topics/codex/","url":"https://newruntime.com/topics/codex/","title":"Codex","reason":"Explore the codex topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/codex.md","json_url":"https://newruntime.com/topics/codex.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}