📰 Dev.to · Albert Alov

How react-render-profile-mcp works under the hood - and what it found in a real project

react-render-profile-mcp v0.3.1 - 4 new diagnostic tools for React Compiler, hydration, Zustand, and state cascades

Your AI agent reads tsconfig.json. It has absolutely no idea what it means

Your AI Agent Just Broke Your React Performance. It Has No Idea

Your AI Agent Hallucinates Tailwind Classes. Here's the Fix

Your AI Agent Can Read the DOM. It Can't See the Screen.

Stop Copy-Pasting Zod Schemas to ChatGPT. Build a Mock Forge Instead.

Stop Spending Two Weeks Configuring Playwright. Use a Skeleton Built for AI Adaptation.🤖

Stop Running Your Entire Test Suite. Use the AST Instead.

Stop Guessing Why Your Tests Flake. Build a Knowledge Graph Instead.

Stop Copy-Pasting Playwright Traces into ChatGPT. Do This Instead.

We traced an MCP server calling an LLM — both sides, one trace

Every PostgreSQL MCP server eats your context window. Here's how I collapsed 4 into 1.

MCP servers are the fastest-growing part of the AI stack. They have zero observability.

Your LLM traces are write-only

Your AI agent re-sends 80% of your budget every loop