Real AI agent use cases, with sources and setup prompts

Scrape sites with selectors an LLM writes once and fixes only when they break

DeepScrape has an LLM generate a CSS selector once, reuses it for free, and calls the model again only when the page changes; it runs as an MCP server for Claude or Cursor and has a Site-to-MCP mode.

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Source

@stretchcloud on X · 2026-10-12

Written in our own words. Credit to the original author. Link checked 2026-10-23.

What they did

DeepScrape has an LLM generate a CSS selector once, reuses it for free, and calls the model again only when the page changes; it runs as an MCP server for Claude or Cursor and has a Site-to-MCP mode.

Result (as claimed)

You stop paying for AI on every scrape of an unchanged page.

Tools they used

DeepScrapeMCPClaudeCursor

Cost: Pricing depends on the tools you pick; check each official pricing page.

Set it up

  1. Pick a contained repo or task

    Start on a branch or side project where mistakes are cheap.

  2. Install and configure

    Set up DeepScrape, MCP, Claude, Cursor. Read what it can run on your machine and limit permissions where possible.

  3. Run it on a real task

    Give it a well-scoped issue and let it work. Review the diff like any pull request.

  4. Add guardrails

    Keep tests and CI in the loop, and never let an agent push to main or touch production secrets unattended.

Copy the full setup prompt

Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.

You are helping me set up this AI use case end to end in Claude Code.

Goal: Scrape sites with selectors an LLM writes once and fixes only when they break
What the original author did: DeepScrape has an LLM generate a CSS selector once, reuses it for free, and calls the model again only when the page changes; it runs as an MCP server for Claude or Cursor and has a Site-to-MCP mode.
Reported result (as claimed by the author): You stop paying for AI on every scrape of an unchanged page.
Source: https://x.com/stretchcloud/status/2109528492073271368
Tools they used: DeepScrape, MCP, Claude, Cursor
Category: Dev & ops

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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Guides for this use case

How to build an MCP server for AI agents · How to scrape websites and extract data with AI agents · How to use Cursor agents and automations

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