WhoBuilt

Pete Koomen

general partner at Y Combinator

YC partner credited with naming the agent harness.

Key facts

Founded
Roles
Y Combinator, general partner

Career

  1. Y Combinatorcurrentas of May 2026
    general partner
  2. Founder

Timeline 3

Dated events, newest first. Open the sources under any item.

How we verify
Founded1Career1Built1
20262 events
May
  1. as of May 2026Career
    Pete Koomen is general partner at Y Combinator
    “our general partner at YC” 0:39
    Unverified1 source· Talk
  1. 2026Built
    Pete Koomen built agent infrastructure
    “he's gone on to create all of our agent infrastructure at YC” 0:39
    Unverified1 source· Talk
20131 event
  1. reported 2013-10Founded
    Pete Koomen founded Optimizely
    “He created Optimizely” 0:39
    Verified2 sources· Talk

Talks 1

46:30
Inside YC's AI Playbook

Pete Koomen and Garry Tan explain how YC built internal agent infrastructure around a shared database, a tool registry, and agent harnesses, enabling teams to use AI for real work. They describe how transcripts and shared agent conversations can capture employees’ expertise and improve reusable skills, turning organizational knowledge into a shared resource. The talk argues that AI works best when employees can shape the prompts and tools themselves, and that open, high-trust organizations can use it to help people learn and work more effectively. It also makes the case for small, adaptable software and personal AI that people can customize, rather than tightly controlled systems.

May 27, 2026· 47 min 0:00

Mentioned in 2

Talks where other speakers mention them