Didit Copilot: shipping an AI agent that lives inside the app

1. page-agent

   1 9 28,543 9.8 TypeScript

   JavaScript in-page GUI agent. Control web interfaces with natural language.

   

   DOM fallback. When nothing is exposed for the job, the agent reads a text snapshot of the page and clicks/fills by element ref — the same trick page-agent popularized, no multimodal model needed.

2. Puter.js

   developer.puter.com featured

   Puter.js - The Backend for AI-Generated Apps. One-shot full-stack apps with your existing AI coding tool. Puter.js gives you Auth, Storage, DB, AI & more, with up to 90% fewer AI tokens than other backend platforms.

   

3. gui-agent

   2 1 11 6.9 TypeScript

   GUI agent using WebMCP polyfill. Control web interfaces with natural language

   

   This is where gui-agent comes in, an open-source library I built exactly for this pattern (@aralroca/gui-agent on npm). It implements the emerging W3C WebMCP draft: your app registers its actions as tools on document.modelContext, and any WebMCP agent, yours, or eventually the browser's native one, can call them.

4. webmcp

   3 32 2,952 8.4 Bikeshed

   🤖 WebMCP

   

   This is where gui-agent comes in, an open-source library I built exactly for this pattern (@aralroca/gui-agent on npm). It implements the emerging W3C WebMCP draft: your app registers its actions as tools on document.modelContext, and any WebMCP agent, yours, or eventually the browser's native one, can call them.

5. mastra

   4 40 27,033 10.0 TypeScript

   Mastra is the modern TypeScript framework for AI-powered applications and agents.

   

   The brain runs in a small Node service built on Mastra. The agent itself is a few lines, model via OpenRouter, conversation memory in Postgres:

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