USE CASEPersonalSimple

Lenny's 'Be Happier' bot - 3 weekly suggestions from your real life

Lenny Rachitsky's favorite new use case is one sentence: a 'Be Happier' bot that analyzes his emails, calendar and Slack and suggests three things per week to be happier. His screenshot shows why it works - it read his actual week and protected time with friends and family, not generic self-care.

Grok·0.0·0 saves·4 uses·via @lennysan·Tweet by @lennysan

How it runs

4 steps. Do them in order.

  1. 01Lenny Rachitsky (Lenny's Newsletter) built his favorite new bot with a single sentence:
  2. 02> You're the Be Happier bot. Analyze my emails and everything you notice about me and my day, and what I work and and how I act, and suggest 3 things I can do to be happier weekly.
  3. 03That's his verbatim prompt, typo and all. With email and calendar already connected, his screenshot shows what came back - and it's the opposite of generic wellness advice. The bot read his inbox ("personal mail is mostly noise; the real load is work pitches, a few open promises, and a stacked week"), checked the calendar "so the three things aren't just inbox advice," and then made a call: *"This week is already a pile-up... these three don't add a new practice. They protect things you already started."* Suggestion one: treat tomorrow's 4-9:30pm hang with a friend as closed - "it's the only unstructured friend hang on your calendar in weeks." Suggestion two: do the school pickup that won't come back, skip the class that will.
  4. 04Setup is just: connect Gmail, Calendar and Slack, paste the prompt below (Lenny's sentence, expanded only enough to run on a weekly schedule), and let it run.

What you get

Every wellness app gives you the same advice because it knows nothing about you. This bot gives different advice because it knows everything - it can see that the Thursday dinner is the only unstructured friend time in weeks, that the school pickup window closes forever, that the week is already a pile-up so the kind thing is to *protect* commitments, not add habits. That's the quiet insight in Lenny's one-liner: happiness advice is a data problem, and your bot is the only advisor that has the data. It suggested prioritizing time with friends and family - not because that's what wellbeing content says, but because it read his actual calendar and saw exactly which hours that meant.

Prompt

Copy it. Change the names. Keep the job.

Prompt
You're the Be Happier bot. Analyze my emails and everything you notice about me and my day, and what I work on and how I act, and suggest 3 things I can do to be happier weekly.

Run this as a weekly routine. Each week: read my email, calendar, and Slack; notice what my week actually looks like - the load, the open promises, the people I keep missing; then suggest exactly 3 concrete things, tied to real events and real people on my calendar, not generic wellness advice. If the week is already full, protect things I've already started instead of adding new practices. Keep it short: three suggestions, one line of reasoning each. Suggest only - I decide.
Use withGrok

via @lennysan · Tweet by @lennysan

Tips

  • ·Lenny's exact one-sentence prompt is quoted on this page; the prompt block expands it only enough to run as a weekly routine. Connect email, calendar and Slack, paste, done - the value comes entirely from the bot reading your real week, so connect the accounts you actually live in.
  • ·weekly
  • ·proposes

Related setups

Same category. Different job.

More in Personal

Built in 15 seconds, better than the paid tool

Gavin Baker built a podcast summarizer in about 15 seconds inside Grok Bot that beat the tool he was already paying for. Said his personal AI usage jumped ~100x. 5.7K likes / 5.2M views.

Personal·Moderate·0 saves
Setup

Give your Grok Bot a phone number - it makes the calls and reports back

Peter bought a $15 phone number on Bland, gave his Grok Bot the API key, and the bot worked out the rest. Now he asks it to call someone with instructions, it has the conversation and reports back - recording on request. It cloned his voice from a 10-second sample, and voicemails left on the number show up in the chat.

Personal·Simple·0 saves
Setup

One bot's only job: be the long-term memory of your house

Morgan Linton's idea for a bot no chatbot can be: photograph every appliance sticker, breaker panel, filter size and paint can once, and the bot files it all for years. A cheap monthly check flags expiring warranties and due filters - and when something breaks, one photo comes back as a one-page repair card.

Personal·Simple·0 saves
Setup

Give your bot specs and a max price - it bids when the bargain appears

Vox runs two real-money errands on one rule. A bargain tracker: exact specs, acceptable condition, max price - when a listing checks every box the bot buys or bids; over budget comes back as a link. And a haircut booked end to end, paid via Stripe Link. The rule: within range, go ahead; outside it, ask first.

Personal·Moderate·0 saves
Setup