Show HN: Get your coding agent off ~2019 JavaScript, onto modern web primitives

8.1 relevance

Modern web primitives for coding agents is highly actionable and novel for AI-assisted development.

AI/ML github.com

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Why It Matters

As a solutions architect focused on developer experience and AI-driven SDLC, this tool directly addresses the quality gap in AI-generated code by grounding agents in modern, performant web primitives rather than bloated legacy patterns.

Key Takeaways

Integrate `npx modern-web-guidance@latest legacy-scan` into your CI pipeline to automatically detect and modernize legacy JavaScript patterns in your codebase.

Keep your coding agent up to date with the latest web best practices - GoogleChrome/modern-web-guidance

Summary

Modern Web Guidance, stewarded by Google Chrome, Microsoft Edge, Mozilla Firefox, and MDN, provides a CLI tool that injects expert-curated, token-efficient guidelines into coding agents to steer them away from legacy JavaScript patterns. It covers 250 modern web features across CSS layout, performance, accessibility, and built-in AI APIs, addressing the problem that LLM training data is saturated with outdated code. The tool includes a legacy-scan command to identify and modernize existing codebases, with guides designed to be pruned of content models already know.