# Boris Cherny on guardrails for Claude-written production code

DevFeed: [Boris Cherny on guardrails for Claude-written production code](<https://devfeed.tech/articles/quoting-boris-cherny-31160.md>)

Original publisher: [Read original article](<https://simonwillison.net/2026/Sep/11/boris-cherny/>)

Author: Simon Willison

Published: 2026-09-11T17:47:11Z

Content type: opinion

Language: en

Sources: [Simon Willison's Weblog](<https://devfeed.tech/sources/simon-willison-s-weblog.md>)

Topics: [Claude](<https://devfeed.tech/topics/claude.md>), [anthropic](<https://devfeed.tech/topics/anthropic.md>), [AI-assisted coding](<https://devfeed.tech/topics/ai-assisted-coding.md>), [Security](<https://devfeed.tech/topics/security.md>)

Tags: [agentic-engineering](<https://devfeed.tech/tags/agentic-engineering.md>), [agentic-engineering-63](<https://devfeed.tech/tags/agentic-engineering-63.md>), [ai](<https://devfeed.tech/tags/ai.md>), [ai-2-236](<https://devfeed.tech/tags/ai-2-236.md>), [ai-assisted-programming](<https://devfeed.tech/tags/ai-assisted-programming.md>), [ai-assisted-programming-407](<https://devfeed.tech/tags/ai-assisted-programming-407.md>), [anthropic](<https://devfeed.tech/tags/anthropic.md>), [anthropic-336](<https://devfeed.tech/tags/anthropic-336.md>), [boris-cherny](<https://devfeed.tech/tags/boris-cherny.md>), [boris-cherny-4](<https://devfeed.tech/tags/boris-cherny-4.md>), [claude](<https://devfeed.tech/tags/claude.md>), [claude-310](<https://devfeed.tech/tags/claude-310.md>), [claude-code](<https://devfeed.tech/tags/claude-code.md>), [claude-code-127](<https://devfeed.tech/tags/claude-code-127.md>), [coding-agents](<https://devfeed.tech/tags/coding-agents.md>), [coding-agents-248](<https://devfeed.tech/tags/coding-agents-248.md>), [generative-ai](<https://devfeed.tech/tags/generative-ai.md>), [generative-ai-1-982](<https://devfeed.tech/tags/generative-ai-1-982.md>), [llms](<https://devfeed.tech/tags/llms.md>), [llms-1-948](<https://devfeed.tech/tags/llms-1-948.md>), [security](<https://devfeed.tech/tags/security.md>)

## AI overview

Boris Cherny says production code written by Claude should meet a higher standard than human-written code. He describes Anthropic's guardrails, including lint rules, tests, Claude-driven end-to-end tests, daily Claude-powered fuzzing, automated code and security reviews, and automated refactoring.

## Source excerpt

Production code written by Claude should have a higher bar than if it was written by a human. At Anthropic, we have many guardrails in place to make sure this is happening: lots of lint rules, lots of tests, Claude-driven end to end tests, Claude-powered fuzzers running daily, automated code reviews and security reviews, automated code refactoring, and so on. Without these, you can end up with a mess that is hard to maintain down the line. -- Boris Cherny Tags: claude, ai, claude-code, llms, coding-agents, ai-assisted-programming, generative-ai, agentic-engineering, boris-cherny, anthropic