You’ve got a Zoom in 6 minutes. Who the heck is this person, anyway? If only you had an agent to prep you for your calls. Well, I just built a great one you can use for free…

Most Agent Builders Stink — Back to the Drawing Board
I’ve used a bunch of Agent Builders. Most are unreliable.
They’ll get the prep for my meetings right once, but then stop sending the emails. They’ll pull the right information sometimes, other times not.
So I went back to my old standby, Grok.
Building My Meeting Prep Agent in Minutes with Grok Tasks
I told Grok Tasks to search through my Gmail and the open internet to prep me for my meetings. I want to know the following for every call:
- Founder names and backgrounds
- One sentence vision
- Current traction
- A few good questions I should ask
I want everything in concise, bulleted lists. I need Grok to deliver this to my inbox every morning, early.
I wrote a very elaborate prompt, which Grok actually helped me craft. That’s a useful trick: have AI help you write prompts.
Let’s see if this thing works…
Eureka! I’m Ready for My Meetings

Nailed it! Grok did a beautiful job of collating all the information from my email.
All I need to do is quickly read through this, take a couple of notes on questions I want to ask, and I’m ready to meet these awesome founders.
This agent did as good a job as an excellent human assistant. Even if I hired one in the Philippines, it would still cost me $40,000 a year.
I had two founder meetings on the slate today. Without this agent, it would have taken me around 40 minutes to prepare.
With my new agent, that’s down to 10 minutes.
Every Minute Saved Is Huge
A 30-minute savings every day is huge over time. We’re talking over 100 hours a year.
If I value my time at even $150 an hour, that’s $15,000 that just went into my pocket for a few minutes work. I run the agent for no additional cost — it’s covered under the $400/year X Premium Plus plan.
Best of all, automated prep encourages me to meet more founders.
If I know I’m going to have to spend a bunch of time prepping for each meeting, I don’t want to take as many.
But if the prep is easy, I take more meetings. This gives me a better chance of meeting the next Travis Kalanick or Brian Chesky.
What’s exciting about AI isn’t just automating stuff. It’s what we do with the time we get back.
Please Steal My Agent!
If you want to make your own meeting prep agent, here’s the Skill.md file below.
Use it as instructions in a Grok Task, run it every morning, and you’ll have the same setup I have. It should work in other agent builders too, although I haven’t tried that myself.
This is heavily tailored to an investor meeting founders. It might not work for other types of meetings.
Act as my expert-mode assistant for daily investor meeting prep. Always format information in bullet points. Follow these steps exactly and thoroughly for TODAY's date (use current date in America/New_York timezone):1. Search Google Calendar for all events on today (use precise time_min/time_max for the full day in -04:00 or America/New_York).2. Identify every meeting where I am meeting with a startup founder, company representative, or investor-related person. Skip purely personal events like workouts.3. For each such meeting: extract the person name, company, emails, description, time, location/Meet link.4. For each person/company: thoroughly search Gmail (use from:, to:, subject keywords, company name, has:attachment, recent dates). Read full messages with gmail_get_message. Download and analyze any attachments (decks, PDFs, docs) using available tools. Extract all links and browse them.5. Use additional context from any recent self-sent briefs or related emails.6. Go deep on the open internet: web_search extensively, browse company website, LinkedIn profiles of founders, Crunchbase if available, Twitter/X, founder videos, news, YC/Techstars pages, etc. Gather detailed info on: - Exactly what the company does (concise description) - All of the founders' full backgrounds (not just the CEO), past accomplishments, education, previous exits/roles (detailed bullets) - Current traction: revenue, ARR, users, paying customers, pilots, pipeline, funding raised, key metrics7. Summarize EVERYTHING for each meeting in this EXACT clean, concise, easy-to-read format (with space between sections, bold where appropriate):[Time]: [Person] of [Company]*[One-sentence what the company does.]**Key traction bullets (e.g. X paying customers. $Y pipeline. etc.)*[Founder Name], [Title]:- Detailed background bullet 1- Detailed background bullet 2- etc.[Co-founder if any], [Title]:- ...Possible questions:1. Smart investor question based on research2. ...3. ...4. ...5. ...Make questions assume I am an angel investor evaluating for investment. Be concise overall. Prioritize high-signal info. If no meetings, say so clearly. At the end, if there are multiple, keep sections well-spaced.Finally, after generating the full brief, also create a Gmail draft to myself (fpsantora@gmail.com) with subject "Daily Meeting Prep — [Today's Date]" containing the exact brief as the body (use plain text or clean HTML). This ensures I get it as email too.Run in expert mode: be maximally thorough, use multiple tool calls in parallel, cross-verify facts, dig into attachments and links deeply.
Grok Tasks Gets an A
Grok tasks did a beautiful job here. I’m giving it an A!
The only thing I’d change: the email makes me click “Continue reading”, which takes me to the Grok app. I’d rather just see the full text in the email.
But this is a minor point. I’m in Grok all the time anyway!
Wrap-Up
No matter how much you love your job, parts of it are a drag. AI is great at automating the scut work.
Now I can focus on what’s actually fun: meeting great founders and writing checks!
Try using my agent and let me know how it goes…
More on tech:
How I Built a Slick Landing Page in 28 Seconds with Grok 4.5, Elon’s New Coding Agent
Are You Pre-Revenue? Here are 5 Signs Your Startup Is On the Right Track.
China’s GLM 5.2: The Most Powerful Open-Source Model Yet — But Does It Deliver in Real Life?
Save Money on Stuff I Use:
This platform lets me diversify my real estate investments so I’m not too exposed to any one market. I’ve invested since 2018 with great returns.
More on Fundrise in this post.
If you decide to invest in Fundrise, you can use this link to get $100 in free bonus shares!
I used this app every single day to dictate to my computer, I’m even dictating this text using Wispr Flow! It’s way better than Apple’s native dictation.
My productivity is up about 25% since I started dictating rather than typing. I’m also less tired and stressed.
Get a free month of Wispr Flow Pro here!










