I Asked Claude Code to Scrape First Round. It Opened 30 Tabs at Once.

I wanted to study how successful startups on First Round Capital craft their taglines. So I gave Claude Code one instruction: use actionbook go to ervery website and extract tagline. Then Claude Code instead of clicking through each page one by one like a traditional browser agent would, it opened 30 tabs simultaneously and returned everything in under a minute. This is how agents should be using browsers all along. Setup your agent in one sentence Tell Claude Code one sentence: Find actionbook on GitHub and install it. That's the entire setup. After setup, give it one instruction: Collect all companies URL from firstround.com/companies. Open 30 tabs at once. Take snapshot of each page and extract the company name and tagline and save as CSV (company name, URL, tagline). Claude Code builds the URL list from the index page, batches them into groups of 30, and manages tab rotation on its own. You just watch 30 tabs open, scrape, close, and repeat. Why agents need Actionbook for parallel