Frank

Frank

Solo Founder of Four-Leaf.ai
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About

I'm building Four-Leaf, the job search assistant built around you, that organizes and personalizes everything around each job application. The thing that bothered me about existing tools was everyone prepares for interviews by reading answers on a screen. Then they freeze when they have to say it to a real person. Typing "tell me about a time you led a project" and speaking it under pressure are completely different skills. So Four-Leaf does full voice mock interviews. You speak your answers, get feedback on content and delivery. Plus resume tailoring, cover letters, and salary negotiation coaching, all tied to the specific role you're applying to.

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Forums

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3d ago

Should an AI agent's cost budget be a hard limit or a prediction?

One thing I've been thinking about while building tooling for AI agents is that a budget and a cost estimate solve two very different problems.

A budget tells you what you're willing to spend. A prediction tells you what a task is likely to cost. Neither guarantees that the task will finish within that amount.

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5d ago

Most of my Claude Code input tokens weren’t my code

I logged the raw requests from one Claude Code session on a real repo to see where the input tokens actually go. I expected the files the agent read to dominate.

Input was about 123k tokens:

  • ~74% tool definitions

  • ~21% conversation, including a 40 KB file the agent read

  • ~5% system prompt

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25d ago

What's your "is it safe to ship?" checklist for AI-built apps?

AI can get me to a working app in a day, but "it works on my machine" and "it's safe for real users" are very different things.

The part that worries me is the boring stuff that's easy to miss when the code looks clean and everything runs: API keys sitting in the frontend, auth checks that exist on the page but not on the endpoint, database rules left wide open from the prototype stage, no rate limits on anything. The AI rarely warns you about these unless you ask, and by the time you think to ask, you've already moved on to the next feature.

Right now my pre-launch process is mostly manual and a bit random: I skim through the auth flow, search the repo for hardcoded secrets, and try to break things as a logged-out user. It catches some things, but I never feel fully confident.

I'd love to hear how others handle it:

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