Stanford Just Published Rules for AI Coding Agents — What Devs Should Know
Stanford Just Published Rules for AI Coding Agents — What Devs Should Know Stanford dropped a document last week that every developer using AI coding tools should read. It's called CLAUDE.md , it's part of CS336 (Language Modeling from Scratch), and it's a brutally honest set of rules for how AI agents should — and shouldn't — help students write code. The document hit #1 on Hacker News for good reason. It doesn't just apply to students. If you use Claude Code, Cursor, Copilot, or any AI coding assistant, these rules expose the uncomfortable gap between what these tools can do and what they should do. GitHub just rolled out token-based billing for Copilot, and developers are furious. The tension is the same: when does AI assistance stop helping and start hurting? The Core Principle: Teaching Assistant, Not Solution Generator Stanford's position is unambiguous: "AI agents should function as teaching aids that help students learn through explanation, guidance, and feedback — not by completing assignments for them." This isn't academic hand-wringing. It's a design constraint that maps directly to professional development. The same agent that writes your PR in 30 seconds is also the one that leaves you unable to debug it when it breaks at 2 AM. The AI agent role framework from Stanford's CS336 guidelines: teaching assistant vs solution generator The document draws a hard line: What agents SHOULD do: Explain concepts by guiding toward understanding Review your code and point out areas for improvement Ask guiding questions instead of giving fixes Reference documentation, lectures, and debugging tools Suggest sanity checks, assertions, and profiler investigations What agents SHOULD NOT do: Write any Python or pseudocode Complete TODO sections in assignments Give solutions to problems Edit code in the student repo Convert requirements directly into working code Point to third-party implementations If you're a professional developer, the "SHOULD NOT" list probably looks extr