# Paper Star

[Paper Star on Hacklab](https://hacklab.so/org/paper-star)

Startup · 3 people on Hacklab

## Links

- [Website](https://echoecho.ai/)
- [Y Combinator](https://www.ycombinator.com/companies/paper-star)
- [LinkedIn](https://www.linkedin.com/company/napkinmath/)
- [X](https://x.com/paperstar)

## About

<!-- hacklab:yc-profile -->

## YC company profile

Long-horizon agents for teams

For companies that want to 10x, Echo agents learn the work, do it end to end, and scale it

- **YC batch:** Spring 2026
- **Founded:** 2026
- **Team size:** 3
- **Location:** San Francisco
- **Country:** US
- **Status:** Active
- **Industry:** B2B
- **Stage:** Early
- **Tags:** AI
- **YC partner:** Pete Koomen

## Founders

### Jynnie Tang — Founder/CEO

Making Napkin Math, the personalized AI food journal that helps people achieve their health goals
Previously: Retool, One More Multiverse, MIT

[LinkedIn](https://www.linkedin.com/in/jynnie/)

### Manuel Castro — Founder

Building the next generation of agents

Previously: Verkada, Sonos, Healthcare Tech

[LinkedIn](https://www.linkedin.com/in/manuelccastro) · [X](https://x.com/manny4c)

### Claire Nord — Founder/CTO

CTO @ Paper Star

Prev. Apple OS security, Samsara, MIT 6-3 '19

[LinkedIn](https://linkedin.com/in/cmnord) · [X](https://x.com/clairen19)

[Source: Y Combinator](https://www.ycombinator.com/companies/paper-star) · Retrieved 2026-11-02. Company information is self-reported on YC.

## Current staff

- [Claire Nord](https://hacklab.so/claire-nord) — Founder/CTO (Present)
- [Jynnie Tang](https://hacklab.so/jynnie-tang) — Founder/CEO (Present)
- [Manuel Castro](https://hacklab.so/manuel-castro) — Founder (Present)