Jcode (YC Summer 2026)

TL;DR: Jcode is a Y Combinator Summer 2026 startup The harness company, currently active with a team of 1.

The harness company

YC ID
32172
YC Batch
Summer 2026
Status
Active
Team size
1
Industry
Consumer
Tags
Artificial Intelligence, Developer Tools
YC profile
https://www.ycombinator.com/companies/jcode

Last verified:

An agent is LLM + harness: We work purely on that second component. We do research to produce the most capable harness. Our harness has 18k stars on github

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Frequently asked questions

Is Jcode a YC (Y Combinator) company?

Yes. Jcode was funded by Y Combinator in the Summer 2026 batch. The harness company

What does Jcode do?

An agent is LLM + harness: We work purely on that second component. We do research to produce the most capable harness. Our harness has 18k stars on github

What YC batch was Jcode in?

Jcode was part of Y Combinator's Summer 2026 batch.

How big is Jcode?

Jcode has a team of 1 people according to Y Combinator's directory.

Is Jcode still active?

Jcode is currently listed as Active with a team of 1 in Y Combinator's directory.

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