Real AI agent use cases, with sources and setup prompts

Teach a browser agent a website task once and replay it without AI calls

A developer built Dejo, memory for browser agents. The agent learns a task on a website once; after that it replays the steps directly instead of re-reading pages and calling a model every time.

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Source

@rohit_jsfreaky on X · 2026-10-20

Written in our own words. Credit to the original author. Link checked 2026-10-22.

What they did

A developer built Dejo, memory for browser agents. The agent learns a task on a website once; after that it replays the steps directly instead of re-reading pages and calling a model every time.

Result (as claimed)

Repeat runs need no AI calls, so they are faster and cheaper.

Tools they used

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

Set it up

  1. Map the task

    Write the trigger, the inputs, the decisions and the output. Note which steps need a human yes.

  2. Connect the tools

    Set up Chrome, Playwright with the narrowest permissions that work. Use a test account or sandbox first.

  3. Build the workflow

    Create the steps in order. Add an approval step before anything sends, pays or deletes.

  4. Run it on real but low-stakes data

    Run a few times, read every output, and fix prompts or rules that misfire.

  5. Schedule and monitor

    Turn on the schedule or trigger, and add a daily summary or alert so you notice failures.

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: Teach a browser agent a website task once and replay it without AI calls
What the original author did: A developer built Dejo, memory for browser agents. The agent learns a task on a website once; after that it replays the steps directly instead of re-reading pages and calling a model every time.
Reported result (as claimed by the author): Repeat runs need no AI calls, so they are faster and cheaper.
Source: https://x.com/rohit_jsfreaky/status/2112504801565048881
Tools they used: Chrome, Playwright
Category: Automation & business

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 a website with AI agents · How to build agent memory and context layers · How to add memory to coding agents · How to run multiple coding agents together

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