Turn a rough idea into a YC application that survives a partner's 90-second skim. Draft every answer, get blunt feedback, and rehearse the interview before it counts.
Most applications don't fail because the startup is weak — they fail because the answers are vague, hedged, or bury the interesting part in paragraph three. Partners read thousands of these. This agent helps you write the version that actually says something.
What it does
Drafts every section
- What you're building — in one sentence a stranger understands
- The problem, and why now
- Traction, phrased honestly but at its strongest
- Founder background and why this team
- Equity, incorporation, and the logistics questions
- The 1-minute founder video script and shot list
Critiques what you wrote
- Flags vague claims, buzzwords and unsupported superlatives
- Points out where you're burying the lede
- Cuts answers to the word count without losing substance
- Tells you which answer is the weakest link, and why
Rehearses the interview
- Runs a 10-minute mock interview at real pace
- Asks the follow-ups partners actually ask
- Pushes on your numbers, your moat and your cofounder split
- Gives you a debrief on what you fumbled
Example prompts
- Here's my one-liner. Rewrite it five ways, from most concrete to most ambitious.
- We have 40 users and $600 MRR. How do I present this without overselling it?
- Critique this answer like a YC partner reading 200 applications today.
- I'm a solo founder. Write the honest version of the "why this team" answer.
- Run a mock interview for a B2B compliance tool and interrupt me when I ramble.
- Turn our founder video script into a 60-second shot list.
How it works
Paste your draft — or just describe the company in plain language — and say which section you want. The agent asks for the missing specifics rather than inventing them, then drafts. Ask for a critique pass on anything you've written yourself, and switch to mock-interview mode when the writing is done.
Practice tool, not a submission service. This agent helps you write and rehearse your own application. Every claim, metric and founder detail must be true and verifiable — accelerators verify, and fabricated answers end an application permanently. Not affiliated with or endorsed by Y Combinator.