AI Operator's Index

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Category

Code & Build

Code & Build covers 73 resources across 11 subcategories in the AI Operator's Index.

AI Skills for Development

12 resources

Vercel React Best Practices

70-rule React/Next.js performance guide maintained by Vercel Engineering.

Skill30.2k stars

Matt Pocock: Improve Codebase Architecture

Architecture workflow focused on testability, seams and AI-navigable codebases.

Skill224.1k stars

Matt Pocock: Diagnosing Bugs

Structured bug diagnosis workflow from Matt Pocock's widely installed skill set.

Skill224.1k stars

Vercel Composition Patterns

React composition patterns for scalable component architecture.

Skill30.2k stars

Superpowers: Test-Driven Development

TDD workflow that pushes the coding agent toward red-green-refactor discipline.

Skill274.4k stars

Anthropic Webapp Testing

Official skill for testing web applications with agent-assisted workflows.

Skill170.5k stars

Python Code Simplifier

Simplify and refine Python for clarity and maintainability.

Skill489 stars

Expo Claude Plugin

Official Expo skills for React Native development, deployment and debugging.

Skill2.4k stars

Netlify platform skills covering functions, edge, storage, forms, caching and deployment.

Skill34 stars

React Best Practices Skill

React/Next performance rules optimized for agents.

Skill30.2k stars

Shopify AI Toolkit

18 Shopify development skills spanning APIs, Liquid, Hydrogen, Polaris and store workflows.

Skill508 stars

Large skill framework for spec-first development, TDD and debugging.

Plugin274.4k stars

Accessibility & Web Quality

2 resources

Automated accessibility testing engine.

Repo7.4k stars

WebAIM Contrast Checker

Fast color contrast validation.

Link

Browser Automation

8 resources

Trail of Bits Playwright Skill

Browser automation workflow reviewed by Trail of Bits.

Skill489 stars

Claude in Chrome

Build-test-verify workflows where Claude can inspect and interact with the real browser.

Link

Playwright Plugin

Microsoft browser automation MCP for real end-to-end testing and browser interaction.

Plugin

Sentry Claude Plugin

Inspect errors, stack traces and production issues directly from Claude Code.

Plugin251 stars

Component development and visual testing.

Link

Testing Library

User-centric frontend testing patterns.

Link

Vercel agent-browser

Agent-first browser automation CLI.

Repo41k stars

Fast test runner for modern JS/TS.

Link

Claude Code & Developer Workflows

4 resources

Claude Code Features in the SDK

Map Claude Code concepts into SDK features.

Link

Command-line options and flags.

Link

Automate checks and lifecycle actions.

Link

How Claude Remembers Your Project

CLAUDE.md and auto-memory guidance.

Link

Code Quality & Architecture

7 resources

Chrome DevTools Plugin

Give Claude DevTools-level access to performance traces, network requests and live browser debugging.

Plugin

Claude Code Best Practices

Anthropic's practical coding-agent workflow guidance.

Link

Claude Code Best Practices — Docs

Current official Claude Code best-practices documentation.

Link

Code Review Plugin

Anthropic-verified multi-agent pull-request review with confidence filtering.

Plugin

Effective Harnesses for Long-Running Agents

Patterns for keeping long tasks productive.

Link

Feature Dev Plugin

Anthropic-verified structured feature workflow with exploration, architecture and review agents.

Plugin

How We Built Our Multi-Agent Research System

Anthropic's multi-agent research architecture.

Link

Coding Agents

9 resources

Open-source coding agent for terminal, desktop and IDE workflows with multiple model providers.

199.3k stars

Simple open convention for repository-level instructions to coding agents; useful alongside CLAUDE.md.

Link

Terminal pair-programming tool with mature Git-oriented workflows.

Link

Open-source autonomous coding agent for VS Code; useful as an adjacent implementation reference.

Link

Popular AI-native code editor. Useful for comparing agent UX, workflows and rules.

Link

GitHub's AI coding assistant and agent ecosystem.

Repo

Open-source terminal coding agent; useful for comparing agent workflows and implementation patterns.

Repo106.9k stars

Open platform for cloud coding agents and autonomous software-development workflows.

Link

Chat-driven agentic app builder; useful for comparing rapid build workflows.

Link

Developer Context & APIs

6 resources

APIs.guru OpenAPI Directory

Machine-readable directory of public OpenAPI specifications.

Link

Instant conversational documentation for public GitHub repositories. Excellent for unfamiliar codebases.

Link

Turn a GitHub repository into a prompt-friendly text digest in seconds.

Link

Open convention for LLM-friendly website and documentation indexes; useful when feeding docs to Claude.

Link

Postman Public API Network

Large collection of public API workspaces and documentation Claude can inspect for integrations.

Link

Pack an entire repo into AI-friendly context, with token counting, compression and secret scanning.

Link

Developer Environments

1 resources

High-performance open-source code editor with modern collaboration and AI-oriented workflows.

88.9k stars

Frontend Engineering

21 resources

Massive AI-ready community catalog of React UI.

Link

Animated, visually rich React components.

UI

Unstyled accessible React components.

UI

Check package size and dependency cost before adding another frontend dependency.

Link

Check real browser support before Claude uses a shiny new web feature.

Link

Animated React components and effects.

UI

Canonical browser-platform reference for HTML, CSS, JavaScript and Web APIs.

Link

Motion Primitives

Motion-focused React primitives.

UI

Large enterprise React component ecosystem.

UI

Canonical Next.js docs.

Link

Modern JavaScript, React and web-performance patterns with concrete examples.

Link

Canonical React documentation.

Link

Accessible behavior primitives from Adobe.

UI

Animation-heavy React components.

UI

Refactoring.Guru

Exceptionally clear reference for design patterns, SOLID and refactoring techniques.

Link

Copy-owned React components and registry ecosystem.

UI

Canonical Tailwind docs.

Link

High-quality open-source frontend primitives.

Link

Deployment/platform docs useful to Claude Code.

Link

Build AI applications and chat interfaces.

Link

Google's practical performance, accessibility and modern web-development guidance.

Link

Local Models & Runtime

1 resources

Run and connect open models locally; supports integrations with Claude Code, Codex, Copilot and OpenCode.

179k stars

Performance

2 resources

PageSpeed Insights

Web performance diagnostics.

Link

Deep web performance testing.

Link

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