Real AI agent use cases, with sources and setup prompts

Give every service its own locked inbox your AI can read

A developer built Clova, an email service where each inbox locks to the first sender and bounces everyone else, plus temporary inboxes and prefix inboxes you invent on the fly. It is MCP-ready, so you can bring your own AI to read and sort the mail.

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Source

edpin2000 on Hacker News · 2026-10-14 · Project link

Written in our own words. Credit to the original author. Link checked 2026-10-16.

What they did

A developer built Clova, an email service where each inbox locks to the first sender and bounces everyone else, plus temporary inboxes and prefix inboxes you invent on the fly. It is MCP-ready, so you can bring your own AI to read and sort the mail.

Result (as claimed)

Live at clova.email; 114 points on Show HN.

Tools they used

The source does not name specific tools.

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

Set it up

  1. Define the job

    Say exactly what you want done and what the agent may and may not do on your behalf.

  2. Share only what is needed

    Give your AI agent the minimum files or access required. Avoid sharing passwords in chat when a safer login flow exists.

  3. Review the plan

    Ask the agent to show its plan or draft before it acts, and approve each step that has real consequences.

  4. Check the result

    Confirm the outcome yourself (order placed, request sent, document understood) and keep a record.

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: Give every service its own locked inbox your AI can read
What the original author did: A developer built Clova, an email service where each inbox locks to the first sender and bounces everyone else, plus temporary inboxes and prefix inboxes you invent on the fly. It is MCP-ready, so you can bring your own AI to read and sort the mail.
Reported result (as claimed by the author): Live at clova.email; 114 points on Show HN.
Source: https://news.ycombinator.com/item?id=50090932
Tools they used: not named in the source
Category: Personal & life

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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